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incredis
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Import incredis straight from dindexer.
This commit is contained in:
King_DuckZ 2016-07-14 16:36:14 +01:00
commit 5d79a9101c
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3
.gitmodules vendored Normal file
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[submodule "lib/duckhandy"]
path = lib/duckhandy
url = ../duckhandy.git

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CMakeLists.txt Normal file
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cmake_minimum_required(VERSION 3.3 FATAL_ERROR)
project(incredis CXX)
list (APPEND CMAKE_MODULE_PATH ${CMAKE_CURRENT_SOURCE_DIR}/cmake/Modules)
include(shared_git_project)
find_package(hiredis 0.11.0 REQUIRED)
find_package(CryptoPP 5.6)
find_package(libev 4.0 REQUIRED)
find_package(Boost 1.53.0 REQUIRED)
add_library(${PROJECT_NAME} SHARED
src/command.cpp
src/scan_iterator.cpp
src/reply.cpp
src/batch.cpp
src/script.cpp
src/script_manager.cpp
src/async_connection.cpp
src/incredis.cpp
src/incredis_batch.cpp
)
target_include_directories(${PROJECT_NAME} SYSTEM
PUBLIC ${Boost_INCLUDE_DIRS}
PRIVATE ${HIREDIS_INCLUDE_DIRS}
PUBLIC ${CMAKE_SOURCE_DIR}/lib/better-enums
PRIVATE ${LIBEV_INCLUDE_DIRS}
PRIVATE ${Boost_INCLUDE_DIRS}
)
target_include_directories(${PROJECT_NAME}
PUBLIC ${CMAKE_SOURCE_DIR}/include
PRIVATE ${CMAKE_CURRENT_BINARY_DIR}
)
target_link_libraries(${PROJECT_NAME}
PRIVATE ${HIREDIS_LIBRARIES}
PRIVATE ${LIBEV_LIBRARIES}
PRIVATE ${Boost_LIBRARIES}
)
configure_file(
src/incredisConfig.h.in
${CMAKE_CURRENT_BINARY_DIR}/incredisConfig.h
)
target_compile_definitions(${PROJECT_NAME}
PRIVATE EV_COMPAT3=0
)
if (CryptoPP_FOUND)
target_link_libraries(${PROJECT_NAME} PRIVATE ${CryptoPP_LIBRARIES})
target_include_directories(${PROJECT_NAME} SYSTEM PRIVATE ${CryptoPP_INCLUDE_DIRS})
set (has_cryptopp_lib ON)
else()
set (has_cryptopp_lib OFF)
endif()
install(TARGETS ${PROJECT_NAME}
LIBRARY DESTINATION lib
RUNTIME DESTINATION bin
ARCHIVE DESTINATION lib/static
)
target_compile_features(${PROJECT_NAME}
PUBLIC cxx_nullptr
PUBLIC cxx_range_for
PUBLIC cxx_lambdas
PUBLIC cxx_decltype_auto
PUBLIC cxx_defaulted_functions
PUBLIC cxx_deleted_functions
PUBLIC cxx_auto_type
PUBLIC cxx_decltype_incomplete_return_types
PUBLIC cxx_defaulted_move_initializers
PUBLIC cxx_noexcept
PUBLIC cxx_rvalue_references
)

674
COPYING Normal file
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USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
SUCH DAMAGES.
17. Interpretation of Sections 15 and 16.
If the disclaimer of warranty and limitation of liability provided
above cannot be given local legal effect according to their terms,
reviewing courts shall apply local law that most closely approximates
an absolute waiver of all civil liability in connection with the
Program, unless a warranty or assumption of liability accompanies a
copy of the Program in return for a fee.
END OF TERMS AND CONDITIONS
How to Apply These Terms to Your New Programs
If you develop a new program, and you want it to be of the greatest
possible use to the public, the best way to achieve this is to make it
free software which everyone can redistribute and change under these terms.
To do so, attach the following notices to the program. It is safest
to attach them to the start of each source file to most effectively
state the exclusion of warranty; and each file should have at least
the "copyright" line and a pointer to where the full notice is found.
<one line to give the program's name and a brief idea of what it does.>
Copyright (C) <year> <name of author>
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
Also add information on how to contact you by electronic and paper mail.
If the program does terminal interaction, make it output a short
notice like this when it starts in an interactive mode:
<program> Copyright (C) <year> <name of author>
This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
This is free software, and you are welcome to redistribute it
under certain conditions; type `show c' for details.
The hypothetical commands `show w' and `show c' should show the appropriate
parts of the General Public License. Of course, your program's commands
might be different; for a GUI interface, you would use an "about box".
You should also get your employer (if you work as a programmer) or school,
if any, to sign a "copyright disclaimer" for the program, if necessary.
For more information on this, and how to apply and follow the GNU GPL, see
<http://www.gnu.org/licenses/>.
The GNU General Public License does not permit incorporating your program
into proprietary programs. If your program is a subroutine library, you
may consider it more useful to permit linking proprietary applications with
the library. If this is what you want to do, use the GNU Lesser General
Public License instead of this License. But first, please read
<http://www.gnu.org/philosophy/why-not-lgpl.html>.

136
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# Module for locating the Crypto++ encryption library.
#
# Customizable variables:
# CryptoPP_ROOT_DIR
# This variable points to the CryptoPP root directory. On Windows the
# library location typically will have to be provided explicitly using the
# -D command-line option. The directory should include the include/cryptopp,
# lib and/or bin sub-directories.
#
# Read-only variables:
# CryptoPP_FOUND
# Indicates whether the library has been found.
#
# CryptoPP_INCLUDE_DIRS
# Points to the CryptoPP include directory.
#
# CryptoPP_LIBRARIES
# Points to the CryptoPP libraries that should be passed to
# target_link_libararies.
#
#
# Copyright (c) 2012 Sergiu Dotenco
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in all
# copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
# SOFTWARE.
INCLUDE (FindPackageHandleStandardArgs)
FIND_PATH (
CryptoPP_ROOT_DIR
NAMES cryptopp/cryptlib.h include/cryptopp/cryptlib.h
PATHS ENV CRYPTOPPROOT
DOC "CryptoPP root directory"
)
# Re-use the previous path:
FIND_PATH (
CRYPTOPP_INCLUDE_DIR
NAMES cryptopp/cryptlib.h
HINTS ${CryptoPP_ROOT_DIR}
PATH_SUFFIXES include
DOC "CryptoPP include directory"
)
FIND_LIBRARY (
CRYPTOPP_LIBRARY_DEBUG
NAMES cryptlibd cryptoppd
HINTS ${CryptoPP_ROOT_DIR}
PATH_SUFFIXES lib
DOC "CryptoPP debug library"
)
FIND_LIBRARY (
CRYPTOPP_LIBRARY_RELEASE
NAMES cryptlib cryptopp
HINTS ${CryptoPP_ROOT_DIR}
PATH_SUFFIXES lib
DOC "CryptoPP release library"
)
IF (CRYPTOPP_LIBRARY_DEBUG AND CRYPTOPP_LIBRARY_RELEASE)
SET (
CRYPTOPP_LIBRARY
optimized ${CRYPTOPP_LIBRARY_RELEASE}
debug ${CRYPTOPP_LIBRARY_DEBUG} CACHE DOC "CryptoPP library"
)
ELSEIF (CRYPTOPP_LIBRARY_RELEASE)
SET (
CRYPTOPP_LIBRARY ${CRYPTOPP_LIBRARY_RELEASE} CACHE DOC
"CryptoPP library"
)
ENDIF (CRYPTOPP_LIBRARY_DEBUG AND CRYPTOPP_LIBRARY_RELEASE)
IF (CRYPTOPP_INCLUDE_DIR)
SET (_CRYPTOPP_VERSION_HEADER ${CRYPTOPP_INCLUDE_DIR}/cryptopp/config.h)
IF (EXISTS ${_CRYPTOPP_VERSION_HEADER})
FILE (
STRINGS ${_CRYPTOPP_VERSION_HEADER} _CRYPTOPP_VERSION_TMP REGEX
"^#define CRYPTOPP_VERSION[ \t]+[0-9]+$"
)
STRING (
REGEX REPLACE
"^#define CRYPTOPP_VERSION[ \t]+([0-9]+)" "\\1" _CRYPTOPP_VERSION_TMP
${_CRYPTOPP_VERSION_TMP}
)
STRING (
REGEX REPLACE "([0-9]+)[0-9][0-9]" "\\1" CRYPTOPP_VERSION_MAJOR
${_CRYPTOPP_VERSION_TMP}
)
STRING (
REGEX REPLACE "[0-9]([0-9])[0-9]" "\\1" CRYPTOPP_VERSION_MINOR
${_CRYPTOPP_VERSION_TMP}
)
STRING (
REGEX REPLACE "[0-9][0-9]([0-9])" "\\1" CRYPTOPP_VERSION_PATCH
${_CRYPTOPP_VERSION_TMP}
)
SET (CRYPTOPP_VERSION_COUNT 3)
SET (
CRYPTOPP_VERSION
${CRYPTOPP_VERSION_MAJOR}.${CRYPTOPP_VERSION_MINOR}.${CRYPTOPP_VERSION_PATCH}
)
ENDIF (EXISTS ${_CRYPTOPP_VERSION_HEADER})
ENDIF (CRYPTOPP_INCLUDE_DIR)
SET (CryptoPP_INCLUDE_DIRS ${CRYPTOPP_INCLUDE_DIR})
SET (CryptoPP_LIBRARIES ${CRYPTOPP_LIBRARY})
MARK_AS_ADVANCED (
CRYPTOPP_INCLUDE_DIR CRYPTOPP_LIBRARY CRYPTOPP_LIBRARY_DEBUG
CRYPTOPP_LIBRARY_RELEASE
)
FIND_PACKAGE_HANDLE_STANDARD_ARGS (
CryptoPP REQUIRED_VARS CryptoPP_ROOT_DIR
CRYPTOPP_INCLUDE_DIR CRYPTOPP_LIBRARY VERSION_VAR CRYPTOPP_VERSION
)

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cmake/Modules/Findhiredis.cmake Normal file
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#Find libhiredis
#
# HIREDIS_INCLUDE_DIRS - where to find hiredis/hiredis.h
# HIREDIS_LIBRARIES - list of libraries when using libhiredis
# HIREDIS_FOUND - true if libhiredis found
# HIREDIS_VERSION_STRING - the version of the libhiredis found
#
find_path(HIREDIS_INCLUDE_DIR NAMES hiredis/hiredis.h)
find_library(HIREDIS_LIBRARY NAMES
hiredis
)
if(HIREDIS_INCLUDE_DIR)
if(EXISTS "${HIREDIS_INCLUDE_DIR}/hiredis/hiredis.h")
set(hiredis_ver_tmp_major 0)
set(hiredis_ver_tmp_minor 0)
set(hiredis_ver_tmp_patch 0)
file(STRINGS "${HIREDIS_INCLUDE_DIR}/hiredis/hiredis.h" hiredis_version_nums REGEX "^#define[\t ]+HIREDIS_(MAJOR|MINOR|PATCH)[\t ]+[0-9]+")
foreach(hiredis_version_def IN LISTS hiredis_version_nums)
if ("${hiredis_version_def}" MATCHES "HIREDIS_MAJOR")
string(REGEX REPLACE "^#define[\t ]+HIREDIS_MAJOR[\t ]+([0-9]+).*" "\\1" hiredis_ver_tmp_major "${hiredis_version_def}")
elseif ("${hiredis_version_def}" MATCHES "HIREDIS_MINOR")
string(REGEX REPLACE "^#define[\t ]+HIREDIS_MINOR[\t ]+([0-9]+).*" "\\1" hiredis_ver_tmp_minor "${hiredis_version_def}")
elseif ("${hiredis_version_def}" MATCHES "HIREDIS_PATCH")
string(REGEX REPLACE "^#define[\t ]+HIREDIS_PATCH[\t ]+([0-9]+).*" "\\1" hiredis_ver_tmp_patch "${hiredis_version_def}")
endif()
endforeach()
unset(hiredis_version_nums)
unset(hiredis_version_def)
set(HIREDIS_VERSION_STRING "${hiredis_ver_tmp_major}.${hiredis_ver_tmp_minor}.${hiredis_ver_tmp_patch}")
unset(hiredis_ver_tmp_major)
unset(hiredis_ver_tmp_minor)
unset(hiredis_ver_tmp_patch)
endif()
endif()
include(FindPackageHandleStandardArgs)
FIND_PACKAGE_HANDLE_STANDARD_ARGS(hiredis
REQUIRED_VARS HIREDIS_LIBRARY HIREDIS_INCLUDE_DIR
VERSION_VAR HIREDIS_VERSION_STRING
)
if(HIREDIS_FOUND)
set(HIREDIS_LIBRARIES ${HIREDIS_LIBRARY})
set(HIREDIS_INCLUDE_DIRS ${HIREDIS_INCLUDE_DIR})
endif()
mark_as_advanced(
HIREDIS_ROOT_DIR
HIREDIS_INCLUDE_DIR
HIREDIS_LIBRARY
)

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cmake/Modules/Findlibev.cmake Normal file
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# Try to find libev
# Once done, this will define
#
# LIBEV_FOUND - system has libev
# LIBEV_INCLUDE_DIRS - libev include directories
# LIBEV_LIBRARIES - libraries needed to use libev
if(LIBEV_INCLUDE_DIRS AND LIBEV_LIBRARIES)
set(LIBEV_FIND_QUIETLY TRUE)
else()
find_path(
LIBEV_INCLUDE_DIR
NAMES ev.h
HINTS ${LIBEV_ROOT_DIR}
PATH_SUFFIXES include)
find_library(
LIBEV_LIBRARY
NAME ev
HINTS ${LIBEV_ROOT_DIR}
PATH_SUFFIXES ${CMAKE_INSTALL_LIBDIR})
set(LIBEV_INCLUDE_DIRS ${LIBEV_INCLUDE_DIR})
set(LIBEV_LIBRARIES ${LIBEV_LIBRARY})
include(FindPackageHandleStandardArgs)
find_package_handle_standard_args(
libev DEFAULT_MSG LIBEV_LIBRARY LIBEV_INCLUDE_DIR)
mark_as_advanced(LIBEV_LIBRARY LIBEV_INCLUDE_DIR)
endif()

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cmake/Modules/shared_git_project.cmake Normal file
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cmake_minimum_required(VERSION 2.8.12.2 FATAL_ERROR)
function (add_shared_git_project SUBMODULE_PATH)
if (IS_ABSOLUTE "${SUBMODULE_PATH}")
set(submod_path "${SUBMODULE_PATH}")
else()
set(submod_path "${CMAKE_CURRENT_SOURCE_DIR}/${SUBMODULE_PATH}")
endif()
if (NOT EXISTS "${submod_path}")
message(FATAL_ERROR "Path \"${submod_path}\" doesn't exist")
endif()
if (NOT IS_DIRECTORY "${submod_path}")
message(FATAL_ERROR "Path \"${submod_path}\" is not a valid directory")
endif()
if (NOT EXISTS "${submod_path}/.git")
message(FATAL_ERROR ".git not found in \"${submod_path}\". Not a git submodule?")
endif()
if (IS_DIRECTORY "${submod_path}/.git")
message(FATAL_ERROR "\"${submod_path}.git\" is a directory, not a file as expected. Not a git submodule?")
endif()
get_filename_component(proj_name_orig "${submod_path}" NAME)
if ("${proj_name_orig}" STREQUAL "")
message(FATAL_ERROR "Couldn't make up a name for given project in \"${submod_path}\"")
endif()
string(MAKE_C_IDENTIFIER "${submod_path}" proj_name_c_id)
string(TOUPPER ${proj_name_c_id} proj_name)
get_property(shared_projects_list GLOBAL PROPERTY SHARED_PROJECTS_LIST)
list(FIND shared_projects_list ${proj_name} found_index)
if (${found_index} GREATER -1)
#nothing to do, the variable is already set so the project must have been
#included already
return()
endif()
#Obtain the path to the working tree
# see http://stackoverflow.com/questions/27379818/git-possible-to-use-same-submodule-working-copy-by-multiple-projects
# git rev-parse --git-dir --show-toplevel
execute_process(
COMMAND git rev-parse --show-toplevel
WORKING_DIRECTORY "${submod_path}"
OUTPUT_VARIABLE matched_gitdir
OUTPUT_STRIP_TRAILING_WHITESPACE
)
#Make sure we got an absolute path
if (IS_ABSOLUTE "${matched_gitdir}")
set(reported_submodule_dir "${matched_gitdir}")
else()
file(RELATIVE_PATH reported_submodule_dir "${CMAKE_CURRENT_SOURCE_DIR}" "${submod_path}/${matched_gitdir}")
endif()
unset(matched_gitdir)
#Check if submodule is a subdirectory of the current source dir
file(RELATIVE_PATH reported_submodule_rel_path "${CMAKE_CURRENT_SOURCE_DIR}" "${reported_submodule_dir}")
string(LENGTH "${reported_submodule_rel_path}" rel_path_len)
if (${rel_path_len} GREATER 2)
string(SUBSTRING "${reported_submodule_rel_path}" 0 3 first_bit)
if ("../" STREQUAL "${first_bit}")
set(is_out_of_dirtree ON)
else()
set(is_out_of_dirtree OFF)
endif()
unset(first_bit)
else()
set(is_out_of_dirtree OFF)
endif()
unset(rel_path_len)
#Globally mark current submodule as handled
set_property(GLOBAL APPEND PROPERTY SHARED_PROJECTS_LIST ${proj_name})
set(shared_project_binary "${CMAKE_CURRENT_BINARY_DIR}/shared_projects/${proj_name_orig}")
if (is_out_of_dirtree)
#message(FATAL_ERROR "Would call add_subdirectory(\"${reported_submodule_dir}\" \"${shared_project_binary}\")")
add_subdirectory("${reported_submodule_dir}" "${shared_project_binary}" ${ARGN})
else()
#message(FATAL_ERROR "Would call add_subdirectory(\"${reported_submodule_rel_path}\")")
add_subdirectory("${reported_submodule_rel_path}" ${ARGN})
endif()
endfunction()

1
lib/duckhandy Submodule

@ -0,0 +1 @@
Subproject commit 0da25f9094c08ccb1312e502e020db6a68504d34

91
src/arg_to_bin_safe.hpp Normal file
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/* Copyright 2016, Michele Santullo
* This file is part of "incredis".
*
* "incredis" is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* "incredis" is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with "incredis". If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef id9348909738B047B7B6912D73CB519039
#define id9348909738B047B7B6912D73CB519039
#include "duckhandy/compatibility.h"
#include <cstddef>
#include <boost/utility/string_ref.hpp>
#include <string>
namespace redis {
namespace implem {
template <typename T>
const char* arg_to_bin_safe_char ( const T& parArg );
template <typename T>
std::size_t arg_to_bin_safe_length ( const T& parArg ) a_pure;
template <typename T>
struct MakeCharInfo;
template<>
struct MakeCharInfo<std::string> {
MakeCharInfo ( const std::string& parData ) : m_string(parData) {}
const char* data ( void ) const { return m_string.data(); }
std::size_t size ( void ) const { return m_string.size(); }
private:
const std::string& m_string;
};
template<>
struct MakeCharInfo<boost::string_ref> {
MakeCharInfo ( const boost::string_ref& parData ) : m_data(parData.data()), m_size(parData.size()) {}
const char* data ( void ) const { return m_data; }
std::size_t size ( void ) const { return m_size; }
private:
const char* const m_data;
const std::size_t m_size;
};
template<>
struct MakeCharInfo<char> {
MakeCharInfo ( char parData ) : m_data(parData) {}
const char* data ( void ) const { return &m_data; }
std::size_t size ( void ) const { return 1; }
private:
const char m_data;
};
template <std::size_t N>
struct MakeCharInfo<char[N]> {
static_assert(N > 0, "Given input should have at least one character as it's assumed to be a null-terminated string");
MakeCharInfo ( const char (&parData)[N] ) : m_data(parData, N - 1) {}
const char* data ( void ) const { return m_data.data(); }
std::size_t size ( void ) const { return m_data.size(); }
private:
boost::string_ref m_data;
};
template <typename T>
inline const char* arg_to_bin_safe_char (const T& parArg) {
return MakeCharInfo<T>(parArg).data();
}
template <typename T>
inline std::size_t arg_to_bin_safe_length (const T& parArg) {
return MakeCharInfo<T>(parArg).size();
}
} //namespace implem
} //namespace redis
#endif

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src/async_connection.cpp Normal file
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/* Copyright 2016, Michele Santullo
* This file is part of "incredis".
*
* "incredis" is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* "incredis" is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with "incredis". If not, see <http://www.gnu.org/licenses/>.
*/
#include "async_connection.hpp"
#include <hiredis/async.h>
#include <hiredis/adapters/libev.h>
#include <ev.h>
#include <thread>
#include <condition_variable>
#include <atomic>
#include <mutex>
#include <signal.h>
#include <cassert>
#include <sstream>
namespace redis {
namespace {
void async_callback (ev_loop* /*parLoop*/, ev_async* /*parObject*/, int /*parRevents*/) {
}
void async_halt_loop (ev_loop* parLoop, ev_async* /*parObject*/, int /*parRevents*/) {
ev_break(parLoop, EVBREAK_ALL);
}
void lock_mutex_libev (ev_loop* parLoop) noexcept {
std::mutex* mtx = static_cast<std::mutex*>(ev_userdata(parLoop));
assert(mtx);
try {
mtx->lock();
}
catch (const std::system_error&) {
assert(false);
}
}
void unlock_mutex_libev (ev_loop* parLoop) noexcept {
std::mutex* mtx = static_cast<std::mutex*>(ev_userdata(parLoop));
assert(mtx);
mtx->unlock();
}
} //unnamed namespace
struct AsyncConnection::LocalData {
LocalData() :
redis_poll_thread(),
connect_processed(false),
disconnect_processed(true)
{
}
ev_async watcher_wakeup;
ev_async watcher_halt;
std::thread redis_poll_thread;
std::mutex hiredis_mutex;
std::mutex libev_mutex;
std::condition_variable condition_connected;
std::condition_variable condition_disconnected;
std::string connect_err_msg;
std::atomic_bool connect_processed;
std::atomic_bool disconnect_processed;
};
void on_connect (const redisAsyncContext* parContext, int parStatus) {
assert(parContext and parContext->data);
AsyncConnection& self = *static_cast<AsyncConnection*>(parContext->data);
assert(parContext == self.m_conn.get());
assert(not self.m_local_data->connect_processed);
self.m_connection_lost = false;
self.m_connected = (parStatus == REDIS_OK);
self.m_local_data->connect_processed = true;
self.m_local_data->connect_err_msg = parContext->errstr;
self.m_local_data->condition_connected.notify_one();
}
void on_disconnect (const redisAsyncContext* parContext, int parStatus) {
assert(parContext and parContext->data);
AsyncConnection& self = *static_cast<AsyncConnection*>(parContext->data);
assert(self.m_connected);
assert(not self.m_local_data->disconnect_processed);
self.m_connection_lost = (REDIS_ERR == parStatus);
self.m_connected = false;
self.m_local_data->disconnect_processed = true;
self.m_local_data->connect_err_msg.clear();
self.m_local_data->condition_disconnected.notify_one();
};
AsyncConnection::AsyncConnection(std::string&& parAddress, uint16_t parPort) :
m_conn(nullptr, &redisAsyncDisconnect),
m_local_data(new LocalData()),
m_libev_loop_thread(ev_loop_new(EVFLAG_NOINOTIFY), &ev_loop_destroy),
m_address(std::move(parAddress)),
m_port(parPort),
m_connected(false),
m_connection_lost(false)
{
//Init libev stuff
{
signal(SIGPIPE, SIG_IGN);
//See: http://pod.tst.eu/http://cvs.schmorp.de/libev/ev.pod#THREAD_LOCKING_EXAMPLE
ev_async_init(&m_local_data->watcher_wakeup, &async_callback);
ev_async_start(m_libev_loop_thread.get(), &m_local_data->watcher_wakeup);
ev_async_init(&m_local_data->watcher_halt, &async_halt_loop);
ev_async_start(m_libev_loop_thread.get(), &m_local_data->watcher_halt);
ev_set_userdata(m_libev_loop_thread.get(), &m_local_data->libev_mutex);
ev_set_loop_release_cb(m_libev_loop_thread.get(), &unlock_mutex_libev, &lock_mutex_libev);
}
}
AsyncConnection::~AsyncConnection() noexcept {
this->disconnect();
this->wait_for_disconnect();
}
void AsyncConnection::connect() {
if (not m_conn) {
m_local_data->disconnect_processed = false;
RedisConnection conn(
(is_socket_connection() ?
redisAsyncConnectUnix(m_address.c_str())
:
redisAsyncConnect(m_address.c_str(), m_port)
),
&redisAsyncDisconnect
);
if (not conn) {
std::ostringstream oss;
oss << "Unable to connect to Redis server at " << m_address << ':' << m_port;
throw std::runtime_error(oss.str());
}
else {
conn->data = this;
}
if (REDIS_OK != redisLibevAttach(m_libev_loop_thread.get(), conn.get()))
throw std::runtime_error("Unable to set event loop");
if (REDIS_OK != redisAsyncSetConnectCallback(conn.get(), &on_connect))
throw std::runtime_error("Unable to set \"on_connect()\" callback");
if (REDIS_OK != redisAsyncSetDisconnectCallback(conn.get(), &on_disconnect))
throw std::runtime_error("Unable to set \"on_disconnect()\" callback");
std::swap(conn, m_conn);
m_local_data->redis_poll_thread = std::thread([this]() {
m_local_data->libev_mutex.lock();
ev_run(m_libev_loop_thread.get(), 0);
m_local_data->libev_mutex.unlock();
});
wakeup_event_thread();
}
}
void AsyncConnection::wait_for_connect() {
if (not m_local_data->connect_processed) {
std::unique_lock<std::mutex> lk(m_local_data->hiredis_mutex);
m_local_data->condition_connected.wait(lk, [this]() { return m_local_data->connect_processed.load(); });
assert(true == m_local_data->connect_processed);
}
}
void AsyncConnection::disconnect() {
if (not m_local_data->connect_processed)
return;
assert(m_local_data->redis_poll_thread.joinable());
m_local_data->connect_processed = false;
{
std::lock_guard<std::mutex> lock(m_local_data->libev_mutex);
assert(not ev_async_pending(&m_local_data->watcher_halt));
ev_async_send(m_libev_loop_thread.get(), &m_local_data->watcher_halt);
m_conn.reset();
}
m_local_data->redis_poll_thread.join();
}
void AsyncConnection::wait_for_disconnect() {
if (not m_local_data->disconnect_processed) {
std::unique_lock<std::mutex> lk(m_local_data->hiredis_mutex);
m_local_data->condition_disconnected.wait(lk, [this]() { return m_local_data->disconnect_processed.load(); });
assert(true == m_local_data->disconnect_processed);
}
}
bool AsyncConnection::is_connected() const {
const bool connected = m_conn and not m_conn->err and m_connected;
assert(not m_connection_lost or connected);
return connected;
}
boost::string_ref AsyncConnection::connection_error() const {
return m_local_data->connect_err_msg;
}
void AsyncConnection::wakeup_event_thread() {
std::lock_guard<std::mutex> lock(m_local_data->libev_mutex);
if (ev_async_pending(&m_local_data->watcher_wakeup) == false)
ev_async_send(m_libev_loop_thread.get(), &m_local_data->watcher_wakeup);
}
std::mutex& AsyncConnection::event_mutex() {
return m_local_data->libev_mutex;
}
bool AsyncConnection::is_socket_connection() const {
return not (m_port or m_address.empty());
}
} //namespace redis

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/* Copyright 2016, Michele Santullo
* This file is part of "incredis".
*
* "incredis" is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* "incredis" is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with "incredis". If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef id982A651A9BC34F6E9BA935A804B3A0A4
#define id982A651A9BC34F6E9BA935A804B3A0A4
#include <memory>
#include <string>
#include <cstdint>
#include <boost/utility/string_ref.hpp>
struct redisAsyncContext;
struct ev_loop;
namespace std {
class mutex;
} //namespace std
namespace redis {
class AsyncConnection {
friend void on_connect ( const redisAsyncContext*, int );
friend void on_disconnect ( const redisAsyncContext*, int );
public:
AsyncConnection ( std::string&& parAddress, uint16_t parPort );
~AsyncConnection ( void ) noexcept;
void connect ( void );
void wait_for_connect ( void );
void disconnect ( void );
void wait_for_disconnect ( void );
bool is_connected ( void ) const;
boost::string_ref connection_error ( void ) const;
void wakeup_event_thread ( void );
std::mutex& event_mutex ( void );
redisAsyncContext* connection ( void );
private:
using RedisConnection = std::unique_ptr<redisAsyncContext, void(*)(redisAsyncContext*)>;
using LibevLoop = std::unique_ptr<ev_loop, void(*)(ev_loop*)>;
bool is_socket_connection ( void ) const;
struct LocalData;
RedisConnection m_conn;
std::unique_ptr<LocalData> m_local_data;
LibevLoop m_libev_loop_thread;
std::string m_address;
uint16_t m_port;
volatile bool m_connected;
volatile bool m_connection_lost;
};
inline redisAsyncContext* AsyncConnection::connection() {
return m_conn.get();
}
} //namespace redis
#endif

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/* Copyright 2016, Michele Santullo
* This file is part of "incredis".
*
* "incredis" is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* "incredis" is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with "incredis". If not, see <http://www.gnu.org/licenses/>.
*/
#include "batch.hpp"
#include "async_connection.hpp"
#include <hiredis/hiredis.h>
#include <hiredis/async.h>
#include <cassert>
#include <future>
#include <ciso646>
#include <boost/iterator/transform_iterator.hpp>
#include <atomic>
#include <mutex>
#include <condition_variable>
#include <sstream>
//#define VERBOSE_HIREDIS_COMM
#if defined(VERBOSE_HIREDIS_COMM)
# include <iostream>
#endif
namespace redis {
namespace {
const std::size_t g_max_redis_unanswered_commands = 1000;
struct HiredisCallbackData {
HiredisCallbackData ( std::atomic_size_t& parPendingFutures, std::condition_variable& parSendCmdCond ) :
promise(),
pending_futures(parPendingFutures),
send_command_condition(parSendCmdCond)
{
}
std::promise<Reply> promise;
std::atomic_size_t& pending_futures;
std::condition_variable& send_command_condition;
};
Reply make_redis_reply_type (redisReply* parReply) {
using boost::transform_iterator;
using PtrToReplyIterator = transform_iterator<Reply(*)(redisReply*), redisReply**>;
switch (parReply->type) {
case REDIS_REPLY_INTEGER:
return parReply->integer;
case REDIS_REPLY_STRING:
return std::string(parReply->str, parReply->len);
case REDIS_REPLY_ARRAY:
return std::vector<Reply>(
PtrToReplyIterator(parReply->element, &make_redis_reply_type),
PtrToReplyIterator(parReply->element + parReply->elements, &make_redis_reply_type)
);
case REDIS_REPLY_ERROR:
return ErrorString(parReply->str, parReply->len);
case REDIS_REPLY_STATUS:
return StatusString(parReply->str, parReply->len);
case REDIS_REPLY_NIL:
return nullptr;
default:
assert(false); //not reached
return Reply();
};
}
void hiredis_run_callback (redisAsyncContext*, void* parReply, void* parPrivData) {
assert(parPrivData);
auto* data = static_cast<HiredisCallbackData*>(parPrivData);
const auto old_count = data->pending_futures.fetch_add(-1);
assert(old_count > 0);
if (old_count == g_max_redis_unanswered_commands)
data->send_command_condition.notify_one();
if (parReply) {
auto reply = make_redis_reply_type(static_cast<redisReply*>(parReply));
data->promise.set_value(std::move(reply));
}
else {
assert(false); //Should this case also be managed?
}
delete data;
}
int array_throw_if_failed (int parErrCount, int parMaxReportedErrors, const std::vector<Reply>& parReplies, std::ostream& parStream) {
int err_count = 0;
for (const auto& rep : parReplies) {
if (rep.which() == RedisVariantType_Error) {
++err_count;
if (err_count + parErrCount <= parMaxReportedErrors)
parStream << '"' << get_error_string(rep).message() << "\" ";
}
else if (rep.which() == RedisVariantType_Array) {
err_count += array_throw_if_failed(err_count + parErrCount, parMaxReportedErrors, get_array(rep), parStream);
}
}
return err_count;
}
} //unnamed namespace
struct Batch::LocalData {
explicit LocalData ( std::atomic_size_t& parPendingFutures ) :
free_cmd_slot(),
futures_mutex(),
pending_futures(parPendingFutures)
{
}
std::condition_variable free_cmd_slot;
std::mutex futures_mutex;
std::atomic_size_t& pending_futures;
};
Batch::Batch (Batch&&) = default;
Batch::Batch (AsyncConnection* parConn, std::atomic_size_t& parPendingFutures) :
m_futures(),
m_replies(),
m_local_data(new LocalData(parPendingFutures)),
m_async_conn(parConn)
{
assert(m_async_conn);
assert(m_async_conn->connection());
}
Batch::~Batch() noexcept {
if (m_local_data)
this->reset();
}
void Batch::run_pvt (int parArgc, const char** parArgv, std::size_t* parLengths) {
assert(not replies_requested());
assert(parArgc >= 1);
assert(parArgv);
assert(parLengths); //This /could/ be null, but I don't see why it should
assert(m_local_data);
const auto pending_futures = m_local_data->pending_futures.fetch_add(1);
auto* data = new HiredisCallbackData(m_local_data->pending_futures, m_local_data->free_cmd_slot);
#if defined(VERBOSE_HIREDIS_COMM)
std::cout << "run_pvt(), " << pending_futures << " items pending... ";
#endif
if (pending_futures >= g_max_redis_unanswered_commands) {
#if defined(VERBOSE_HIREDIS_COMM)
std::cout << " waiting... ";
#endif
std::unique_lock<std::mutex> u_lock(m_local_data->futures_mutex);
m_local_data->free_cmd_slot.wait(u_lock, [this]() { return m_local_data->pending_futures < g_max_redis_unanswered_commands; });
}
#if defined(VERBOSE_HIREDIS_COMM)
std::cout << " emplace_back(future)... ";
#endif
m_futures.emplace_back(data->promise.get_future());
{
std::lock_guard<std::mutex> lock(m_async_conn->event_mutex());
const int command_added = redisAsyncCommandArgv(m_async_conn->connection(), &hiredis_run_callback, data, parArgc, parArgv, parLengths);
assert(REDIS_OK == command_added); // REDIS_ERR if error
static_cast<void>(command_added);
}
#if defined(VERBOSE_HIREDIS_COMM)
std::cout << "command sent to hiredis" << std::endl;
#endif
m_async_conn->wakeup_event_thread();
}
bool Batch::replies_requested() const {
return not m_replies.empty();
}
const std::vector<Reply>& Batch::replies() {
if (not replies_requested()) {
m_replies.reserve(m_futures.size());
for (auto& fut : m_futures) {
m_replies.emplace_back(fut.get());
}
auto empty_vec = std::move(m_futures);
}
return m_replies;
}
void Batch::throw_if_failed() {
std::ostringstream oss;
const int max_reported_errors = 3;
oss << "Error in reply: ";
const int err_count = array_throw_if_failed(0, max_reported_errors, replies(), oss);
if (err_count) {
oss << " (showing " << err_count << '/' << max_reported_errors << " errors on " << replies().size() << " total replies)";
throw std::runtime_error(oss.str());
}
}
void Batch::reset() noexcept {
try {
this->replies(); //force waiting for any pending jobs
}
catch (...) {
assert(false);
}
assert(m_local_data);
assert(0 == m_local_data->pending_futures);
m_futures.clear();
m_replies.clear();
}
RedisError::RedisError (const char* parMessage, std::size_t parLength) :
std::runtime_error(std::string(parMessage, parLength))
{
}
} //namespace redis

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/* Copyright 2016, Michele Santullo
* This file is part of "incredis".
*
* "incredis" is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* "incredis" is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with "incredis". If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef idD81C81D99196491A8C9B68DED8ADD260
#define idD81C81D99196491A8C9B68DED8ADD260
#include "reply.hpp"
#include "arg_to_bin_safe.hpp"
#include <vector>
#include <memory>
namespace std {
template <class R> class future;
template <class T> struct atomic;
} //namespace std
namespace redis {
class Command;
class AsyncConnection;
class Batch {
friend class Command;
public:
Batch ( Batch&& parOther );
Batch ( const Batch& ) = delete;
~Batch ( void ) noexcept;
const std::vector<Reply>& replies ( void );
bool replies_requested ( void ) const;
void throw_if_failed ( void );
template <typename... Args>
Batch& run ( const char* parCommand, Args&&... parArgs );
template <typename... Args>
Batch& operator() ( const char* parCommand, Args&&... parArgs );
void reset ( void ) noexcept;
private:
struct LocalData;
explicit Batch ( AsyncConnection* parConn, std::atomic<std::size_t>& parPendingFutures );
void run_pvt ( int parArgc, const char** parArgv, std::size_t* parLengths );
std::vector<std::future<Reply>> m_futures;
std::vector<Reply> m_replies;
std::unique_ptr<LocalData> m_local_data;
AsyncConnection* m_async_conn;
};
class RedisError : public std::runtime_error {
public:
RedisError ( const char* parMessage, std::size_t parLength );
};
template <typename... Args>
Batch& Batch::run (const char* parCommand, Args&&... parArgs) {
constexpr const std::size_t arg_count = sizeof...(Args) + 1;
using CharPointerArray = std::array<const char*, arg_count>;
using LengthArray = std::array<std::size_t, arg_count>;
using implem::arg_to_bin_safe_char;
using implem::arg_to_bin_safe_length;
using implem::MakeCharInfo;
using boost::string_ref;
this->run_pvt(
static_cast<int>(arg_count),
CharPointerArray{ (arg_to_bin_safe_char(string_ref(parCommand))), MakeCharInfo<typename std::remove_const<typename std::remove_reference<Args>::type>::type>(std::forward<Args>(parArgs)).data()... }.data(),
LengthArray{ arg_to_bin_safe_length(string_ref(parCommand)), arg_to_bin_safe_length(std::forward<Args>(parArgs))... }.data()
);
return *this;
}
template <typename... Args>
Batch& Batch::operator() (const char* parCommand, Args&&... parArgs) {
return this->run(parCommand, std::forward<Args>(parArgs)...);
}
} //namespace redis
#endif

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/* Copyright 2016, Michele Santullo
* This file is part of "incredis".
*
* "incredis" is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* "incredis" is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with "incredis". If not, see <http://www.gnu.org/licenses/>.
*/
#include "command.hpp"
#include "script_manager.hpp"
#include "async_connection.hpp"
#include <hiredis/hiredis.h>
#include <ciso646>
#include <cassert>
#include <algorithm>
#include <stdexcept>
#include <atomic>
//See docs directory for info about hiredis/libev with multithreading
namespace redis {
namespace {
} //unnamed namespace
struct Command::LocalData {
explicit LocalData (Command* parCommand, std::string&& parAddress, uint16_t parPort) :
async_connection(std::move(parAddress), parPort),
lua_scripts(parCommand),
pending_futures(0)
{
}
AsyncConnection async_connection;
ScriptManager lua_scripts;
std::atomic_size_t pending_futures;
};
Command::Command (std::string&& parAddress, uint16_t parPort) :
m_local_data(new LocalData(this, std::move(parAddress), parPort))
{
}
Command::Command (std::string&& parSocket) :
Command(std::move(parSocket), 0)
{
}
Command::~Command() noexcept = default;
void Command::connect() {
m_local_data->async_connection.connect();
}
void Command::wait_for_connect() {
m_local_data->async_connection.wait_for_connect();
}
void Command::disconnect() {
m_local_data->async_connection.disconnect();
}
void Command::wait_for_disconnect() {
m_local_data->async_connection.wait_for_disconnect();
}
bool Command::is_connected() const {
return m_local_data->async_connection.is_connected();
}
boost::string_ref Command::connection_error() const {
return m_local_data->async_connection.connection_error();
}
Batch Command::make_batch() {
assert(is_connected());
return Batch(&m_local_data->async_connection, m_local_data->pending_futures);
}
Script Command::make_script (const std::string &parScript) {
auto sha1 = m_local_data->lua_scripts.submit_lua_script(parScript);
return Script(sha1, m_local_data->lua_scripts);
}
} //namespace redis

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/* Copyright 2016, Michele Santullo
* This file is part of "incredis".
*
* "incredis" is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* "incredis" is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with "incredis". If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef idD83EEBFC927840C6B9F32D61A1D1E582
#define idD83EEBFC927840C6B9F32D61A1D1E582
#include "reply.hpp"
#include "batch.hpp"
#include "script.hpp"
#include <array>
#include <string>
#include <cstdint>
#include <cstddef>
#include <cassert>
#include <vector>
#include <utility>
#include <boost/utility/string_ref.hpp>
#include <ciso646>
#include <stdexcept>
namespace redis {
class Command {
public:
Command ( std::string&& parAddress, uint16_t parPort );
explicit Command ( std::string&& parSocket );
~Command ( void ) noexcept;
void connect ( void );
void wait_for_connect ( void );
void disconnect ( void );
void wait_for_disconnect ( void );
bool is_connected ( void ) const;
boost::string_ref connection_error ( void ) const;
Batch make_batch ( void );
Script make_script ( const std::string& parScript );
template <typename... Args>
Reply run ( const char* parCommand, Args&&... parArgs );
private:
struct LocalData;
std::unique_ptr<LocalData> m_local_data;
};
template <typename... Args>
Reply Command::run (const char* parCommand, Args&&... parArgs) {
auto batch = make_batch();
batch.run(parCommand, std::forward<Args>(parArgs)...);
batch.throw_if_failed();
return batch.replies().front();
}
template <typename T>
struct StructAdapt;
template <typename AS, typename I>
inline AS range_as (const boost::iterator_range<I>& parRange) {
assert(not boost::empty(parRange));
AS retval;
const auto success = StructAdapt<AS>::decode(parRange, retval);
if (not success)
throw std::runtime_error("Error decoding range");
return retval;
};
} //namespace redis
#endif

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/* Copyright 2016, Michele Santullo
* This file is part of "incredis".
*
* "incredis" is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* "incredis" is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with "incredis". If not, see <http://www.gnu.org/licenses/>.
*/
#include "incredis.hpp"
#include "duckhandy/compatibility.h"
#include "duckhandy/lexical_cast.hpp"
#include <cassert>
#include <ciso646>
namespace redis {
namespace {
inline IncRedis::opt_string optional_string ( const Reply& parReply ) a_always_inline;
IncRedis::opt_string_list optional_string_list ( const Reply& parReply );
IncRedis::opt_string optional_string (const Reply& parReply) {
assert(parReply.which() == RedisVariantType_Nil or parReply.which() == RedisVariantType_String);
if (RedisVariantType_Nil == parReply.which())
return boost::none;
else
return get_string(parReply);
}
IncRedis::opt_string_list optional_string_list (const Reply& parReply) {
assert(parReply.which() == RedisVariantType_Nil or parReply.which() == RedisVariantType_Array);
if (RedisVariantType_Nil == parReply.which()) {
return boost::none;
}
else {
auto replies = get_array(parReply);
IncRedis::opt_string_list::value_type retval;
retval.reserve(replies.size());
for (const auto& rep : replies) {
retval.emplace_back(optional_string(rep));
}
return IncRedis::opt_string_list(std::move(retval));
}
}
} //unnamed namespace
IncRedis::IncRedis (std::string &&parAddress, uint16_t parPort) :
m_command(std::move(parAddress), parPort)
{
}
IncRedis::IncRedis (std::string&& parSocket) :
m_command(std::move(parSocket))
{
}
void IncRedis::connect() {
m_command.connect();
}
void IncRedis::wait_for_connect() {
m_command.wait_for_connect();
}
void IncRedis::disconnect() {
m_command.disconnect();
}
void IncRedis::wait_for_disconnect() {
m_command.wait_for_disconnect();
}
IncRedisBatch IncRedis::make_batch() {
return m_command.make_batch();
}
auto IncRedis::scan (boost::string_ref parPattern) -> scan_range {
return scan_range(scan_iterator(&m_command, false, parPattern), scan_iterator(&m_command, true));
}
auto IncRedis::hscan (boost::string_ref parKey, boost::string_ref parPattern) -> hscan_range {
return hscan_range(hscan_iterator(&m_command, parKey, false, parPattern), hscan_iterator(&m_command, parKey, true));
}
auto IncRedis::sscan (boost::string_ref parKey, boost::string_ref parPattern) -> sscan_range {
return sscan_range(sscan_iterator(&m_command, parKey, false, parPattern), sscan_iterator(&m_command, parKey, true));
}
auto IncRedis::zscan (boost::string_ref parKey, boost::string_ref parPattern) -> zscan_range {
return zscan_range(zscan_iterator(&m_command, parKey, false, parPattern), zscan_iterator(&m_command, parKey, true));
}
auto IncRedis::hget (boost::string_ref parKey, boost::string_ref parField) -> opt_string {
return optional_string(m_command.run("HGET", parKey, parField));
}
int IncRedis::hincrby (boost::string_ref parKey, boost::string_ref parField, int parInc) {
const auto inc = dhandy::lexical_cast<std::string>(parInc);
auto reply = m_command.run("HINCRBY", parKey, parField, inc);
return get_integer(reply);
}
auto IncRedis::srandmember (boost::string_ref parKey, int parCount) -> opt_string_list {
return optional_string_list(m_command.run("SRANDMEMBER", parKey, dhandy::lexical_cast<std::string>(parCount)));
}
auto IncRedis::srandmember (boost::string_ref parKey) -> opt_string {
return optional_string(m_command.run("SRANDMEMBER", parKey));
}
auto IncRedis::smembers (boost::string_ref parKey) -> opt_string_list {
return optional_string_list(m_command.run("SMEMBERS", parKey));
}
auto IncRedis::zrangebyscore (boost::string_ref parKey, double parMin, bool parMinIncl, double parMax, bool parMaxIncl, bool parWithScores) -> opt_string_list {
auto batch = make_batch();
batch.zrangebyscore(parKey, parMin, parMinIncl, parMax, parMaxIncl, parWithScores);
assert(batch.replies().size() == 1);
return optional_string_list(batch.replies().front());
}
bool IncRedis::script_flush() {
const auto ret = get<StatusString>(m_command.run("SCRIPT", "FLUSH"));
return ret.is_ok();
}
auto IncRedis::reply_to_string_list (const Reply& parReply) -> opt_string_list {
return optional_string_list(parReply);
}
} //namespace redis

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/* Copyright 2016, Michele Santullo
* This file is part of "incredis".
*
* "incredis" is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* "incredis" is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with "incredis". If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef id7D338900114548A890B1EECE0C4D3C4C
#define id7D338900114548A890B1EECE0C4D3C4C
#include "command.hpp"
#include "incredis_batch.hpp"
#include "scan_iterator.hpp"
#include <boost/optional.hpp>
#include <string>
#include <boost/utility/string_ref.hpp>
#include <vector>
#include <boost/range/iterator_range_core.hpp>
#include <boost/range/empty.hpp>
#include <utility>
namespace redis {
class IncRedis {
public:
typedef ScanIterator<ScanSingleValues<std::string>> scan_iterator;
typedef boost::iterator_range<scan_iterator> scan_range;
typedef ScanIterator<ScanPairs<std::pair<std::string, std::string>, ScanCommands::HSCAN>> hscan_iterator;
typedef boost::iterator_range<hscan_iterator> hscan_range;
typedef ScanIterator<ScanSingleValuesInKey<std::string>> sscan_iterator;
typedef boost::iterator_range<sscan_iterator> sscan_range;
typedef ScanIterator<ScanPairs<std::pair<std::string, std::string>, ScanCommands::ZSCAN>> zscan_iterator;
typedef boost::iterator_range<zscan_iterator> zscan_range;
typedef boost::optional<std::string> opt_string;
typedef boost::optional<std::vector<opt_string>> opt_string_list;
IncRedis ( std::string&& parAddress, uint16_t parPort );
explicit IncRedis ( std::string&& parSocket );
~IncRedis ( void ) noexcept = default;
void connect ( void );
void wait_for_connect ( void );
void disconnect ( void );
void wait_for_disconnect ( void );
bool is_connected ( void ) const { return m_command.is_connected(); }
IncRedisBatch make_batch ( void );
Command& command ( void ) { return m_command; }
const Command& command ( void ) const { return m_command; }
//Scan
scan_range scan ( boost::string_ref parPattern=boost::string_ref() );
hscan_range hscan ( boost::string_ref parKey, boost::string_ref parPattern=boost::string_ref() );
sscan_range sscan ( boost::string_ref parKey, boost::string_ref parPattern=boost::string_ref() );
zscan_range zscan ( boost::string_ref parKey, boost::string_ref parPattern=boost::string_ref() );
//Hash
opt_string hget ( boost::string_ref parKey, boost::string_ref parField );
template <typename... Args>
opt_string_list hmget ( boost::string_ref parKey, Args&&... parArgs );
int hincrby ( boost::string_ref parKey, boost::string_ref parField, int parInc );
//Set
opt_string_list srandmember ( boost::string_ref parKey, int parCount );
opt_string srandmember ( boost::string_ref parKey );
opt_string_list smembers ( boost::string_ref parKey );
//Sorted set
opt_string_list zrangebyscore ( boost::string_ref parKey, double parMin, bool parMinIncl, double parMax, bool parMaxIncl, bool parWithScores );
//Script
bool script_flush ( void );
private:
static opt_string_list reply_to_string_list ( const Reply& parReply );
Command m_command;
};
template <typename... Args>
auto IncRedis::hmget (boost::string_ref parKey, Args&&... parArgs) -> opt_string_list {
static_assert(sizeof...(Args) > 0, "No fields specified");
return reply_to_string_list(m_command.run("HMGET", parKey, std::forward<Args>(parArgs)...));
}
} //namespace redis
#endif

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/* Copyright 2016, Michele Santullo
* This file is part of "incredis".
*
* "incredis" is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* "incredis" is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with "incredis". If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef id2F97AF7626CE45F08742867A2A737482
#define id2F97AF7626CE45F08742867A2A737482
#include "duckhandy/cmake_on_off.h"
#if CMAKE_@has_cryptopp_lib@
# define WITH_CRYPTOPP
#endif
#endif

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/* Copyright 2016, Michele Santullo
* This file is part of "incredis".
*
* "incredis" is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* "incredis" is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with "incredis". If not, see <http://www.gnu.org/licenses/>.
*/
#include "incredis_batch.hpp"
#include "duckhandy/lexical_cast.hpp"
#include <sstream>
#include <utility>
#include <ciso646>
namespace redis {
namespace {
std::string make_boundary (double parValue, bool parExclude) {
std::ostringstream oss;
if (parExclude)
oss << '(';
oss << parValue;
return oss.str();
}
} //unnamed namespace
IncRedisBatch::IncRedisBatch (Batch&& parBatch) :
m_batch(std::move(parBatch))
{
}
void IncRedisBatch::reset() {
m_batch.reset();
}
void IncRedisBatch::throw_if_failed() {
m_batch.throw_if_failed();
}
IncRedisBatch& IncRedisBatch::select (int parIndex) {
m_batch.run("SELECT", dhandy::lexical_cast<std::string>(parIndex));
return *this;
}
IncRedisBatch& IncRedisBatch::client_setname (boost::string_ref parName) {
m_batch.run("CLIENT", "SETNAME", parName);
return *this;
}
IncRedisBatch& IncRedisBatch::hget (boost::string_ref parKey, boost::string_ref parField) {
m_batch.run("HGET", parKey, parField);
return *this;
}
IncRedisBatch& IncRedisBatch::hincrby (boost::string_ref parKey, boost::string_ref parField, int parInc) {
m_batch.run("HINCRBY", parKey, parField, dhandy::lexical_cast<std::string>(parInc));
return *this;
}
IncRedisBatch& IncRedisBatch::srandmember (boost::string_ref parKey, int parCount) {
m_batch.run("SRANDMEMBER", parKey, dhandy::lexical_cast<std::string>(parCount));
return *this;
}
IncRedisBatch& IncRedisBatch::srandmember (boost::string_ref parKey) {
m_batch.run("SRANDMEMBER", parKey);
return *this;
}
IncRedisBatch& IncRedisBatch::zrangebyscore (boost::string_ref parKey, double parMin, bool parMinIncl, double parMax, bool parMaxIncl, bool parWithScores) {
auto lower_bound = make_boundary(parMin, not parMinIncl);
auto upper_bound = make_boundary(parMax, not parMaxIncl);
if (parWithScores)
m_batch.run("ZRANGEBYSCORE", parKey, lower_bound, upper_bound, "WITHSCORES");
else
m_batch.run("ZRANGEBYSCORE", parKey, lower_bound, upper_bound);
return *this;
}
IncRedisBatch& IncRedisBatch::script_flush() {
m_batch.run("SCRIPT", "FLUSH");
return *this;
}
} //namespace redis

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/* Copyright 2016, Michele Santullo
* This file is part of "incredis".
*
* "incredis" is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* "incredis" is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with "incredis". If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef id3C772A92AB0E440DA84DAFD807BC962D
#define id3C772A92AB0E440DA84DAFD807BC962D
#include "batch.hpp"
#include "duckhandy/sequence_bt.hpp"
#include <boost/utility/string_ref.hpp>
#include <boost/lexical_cast.hpp>
#include <type_traits>
namespace redis {
class IncRedisBatch {
public:
enum ZADD_Mode {
ZADD_XX_UpdateOnly,
ZADD_NX_AlwaysAdd,
ZADD_None
};
IncRedisBatch ( void ) = delete;
IncRedisBatch ( IncRedisBatch&& ) = default;
IncRedisBatch ( const Batch& ) = delete;
IncRedisBatch ( Batch&& parBatch );
void reset ( void );
void throw_if_failed ( void );
const std::vector<Reply>& replies ( void ) { return m_batch.replies(); }
Batch& batch ( void ) { return m_batch; }
const Batch& batch ( void ) const { return m_batch; }
//Misc
IncRedisBatch& select ( int parIndex );
IncRedisBatch& client_setname ( boost::string_ref parName );
template <typename... Args>
IncRedisBatch& del ( Args&&... parArgs );
//Hash
IncRedisBatch& hget ( boost::string_ref parKey, boost::string_ref parField );
template <typename... Args>
IncRedisBatch& hmget ( boost::string_ref parKey, Args&&... parArgs );
template <typename... Args>
IncRedisBatch& hmset ( boost::string_ref parKey, Args&&... parArgs );
IncRedisBatch& hincrby ( boost::string_ref parKey, boost::string_ref parField, int parInc );
//Set
IncRedisBatch& srandmember ( boost::string_ref parKey, int parCount );
IncRedisBatch& srandmember ( boost::string_ref parKey );
template <typename... Args>
IncRedisBatch& sadd ( boost::string_ref parKey, Args&&... parArgs );
//Sorted set
template <typename... Args>
IncRedisBatch& zadd ( boost::string_ref parKey, ZADD_Mode parMode, bool parChange, Args&&... parArgs );
IncRedisBatch& zrangebyscore ( boost::string_ref parKey, double parMin, bool parMinIncl, double parMax, bool parMaxIncl, bool parWithScores );
//Script
IncRedisBatch& script_flush ( void );
private:
Batch m_batch;
};
namespace implem {
template <std::size_t... I, typename... Args>
void run_conv_floats_to_strings ( Batch& parBatch, dhandy::bt::index_seq<I...>, Args&&... parArgs );
} //namespace implem
template <typename... Args>
IncRedisBatch& IncRedisBatch::hmget (boost::string_ref parKey, Args&&... parArgs) {
static_assert(sizeof...(Args) > 0, "No fields specified");
m_batch.run("HMGET", parKey, std::forward<Args>(parArgs)...);
return *this;
}
template <typename... Args>
IncRedisBatch& IncRedisBatch::hmset (boost::string_ref parKey, Args&&... parArgs) {
static_assert(sizeof...(Args) >= 1, "No parameters specified");
static_assert(sizeof...(Args) % 2 == 0, "Uneven number of parameters received");
m_batch.run("HMSET", parKey, std::forward<Args>(parArgs)...);
return *this;
}
template <typename... Args>
IncRedisBatch& IncRedisBatch::sadd (boost::string_ref parKey, Args&&... parArgs) {
static_assert(sizeof...(Args) > 0, "No members specified");
m_batch.run("SADD", parKey, std::forward<Args>(parArgs)...);
return *this;
}
template <typename... Args>
IncRedisBatch& IncRedisBatch::del (Args&&... parArgs) {
static_assert(sizeof...(Args) > 0, "No keys specified");
m_batch.run("DEL", std::forward<Args>(parArgs)...);
return *this;
}
template <typename... Args>
IncRedisBatch& IncRedisBatch::zadd (boost::string_ref parKey, ZADD_Mode parMode, bool parChange, Args&&... parArgs) {
static_assert(sizeof...(Args) >= 1, "No score/value pairs specified");
static_assert(sizeof...(Args) % 2 == 0, "Uneven number of parameters received");
using dhandy::bt::index_range;
if (parChange) {
if (ZADD_None == parMode)
implem::run_conv_floats_to_strings(m_batch, index_range<0, sizeof...(Args)>(), "ZADD", parKey, "CH", std::forward<Args>(parArgs)...);
else if (ZADD_NX_AlwaysAdd == parMode)
implem::run_conv_floats_to_strings(m_batch, index_range<0, sizeof...(Args)>(), "ZADD", parKey, "NX", "CH", std::forward<Args>(parArgs)...);
else if (ZADD_XX_UpdateOnly == parMode)
implem::run_conv_floats_to_strings(m_batch, index_range<0, sizeof...(Args)>(), "ZADD", parKey, "XX", "CH", std::forward<Args>(parArgs)...);
}
else {
if (ZADD_None == parMode)
implem::run_conv_floats_to_strings(m_batch, index_range<0, sizeof...(Args)>(), "ZADD", parKey, std::forward<Args>(parArgs)...);
else if (ZADD_NX_AlwaysAdd == parMode)
implem::run_conv_floats_to_strings(m_batch, index_range<0, sizeof...(Args)>(), "ZADD", parKey, "NX", std::forward<Args>(parArgs)...);
else if (ZADD_XX_UpdateOnly == parMode)
implem::run_conv_floats_to_strings(m_batch, index_range<0, sizeof...(Args)>(), "ZADD", parKey, "XX", std::forward<Args>(parArgs)...);
}
return *this;
}
namespace implem {
template <std::size_t IGNORE_COUNT, std::size_t IDX, typename T, bool STRINGIZE=(IDX>=IGNORE_COUNT) && ((IDX-IGNORE_COUNT)%2)==0>
struct stringize_or_forward_impl {
typedef T type;
static T&& do_it ( T&& parT ) { return std::forward<T>(parT); }
};
template <std::size_t IGNORE_COUNT, std::size_t IDX, typename T>
struct stringize_or_forward_impl<IGNORE_COUNT, IDX, T, true> {
static_assert(std::is_floating_point<T>::value, "Scores must be given as floating point values");
typedef std::string type;
static std::string do_it ( T parT ) { return boost::lexical_cast<std::string>(parT); }
};
template <std::size_t IGNORE_COUNT, std::size_t IDX, typename T>
auto stringize_or_forward (T&& parValue) -> typename stringize_or_forward_impl<IGNORE_COUNT, IDX, T>::type {
return stringize_or_forward_impl<IGNORE_COUNT, IDX, T>::do_it(std::forward<T>(parValue));
}
template <std::size_t PreArgsCount, std::size_t... I, typename... Args>
void run_conv_floats_to_strings_impl (Batch& parBatch, dhandy::bt::index_seq<I...>, Args&&... parArgs) {
static_assert(sizeof...(I) == sizeof...(Args), "Wrong number of indices");
static_assert(PreArgsCount <= sizeof...(I), "Can't ignore more arguments than those that were received");
parBatch.run(stringize_or_forward<PreArgsCount, I>(std::forward<Args>(parArgs))...);
}
template <std::size_t... I, typename... Args>
void run_conv_floats_to_strings (Batch& parBatch, dhandy::bt::index_seq<I...>, Args&&... parArgs) {
static_assert(sizeof...(Args) >= sizeof...(I), "Unexpected count, there should be at least as many argument as there are indices");
constexpr const auto pre_args_count = sizeof...(Args) - sizeof...(I);
run_conv_floats_to_strings_impl<pre_args_count>(parBatch, dhandy::bt::index_range<0, sizeof...(Args)>(), std::forward<Args>(parArgs)...);
};
} //namespace implem
} //namespace redis
#endif

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/* Copyright 2016, Michele Santullo
* This file is part of "incredis".
*
* "incredis" is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* "incredis" is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with "incredis". If not, see <http://www.gnu.org/licenses/>.
*/
#include "reply.hpp"
#include "duckhandy/lexical_cast.hpp"
#include <boost/variant/get.hpp>
namespace redis {
const long long& get_integer (const Reply& parReply) {
assert(RedisVariantType_Integer == parReply.which());
return boost::get<long long>(parReply);
}
const std::string& get_string (const Reply& parReply) {
static const std::string empty_str;
if (RedisVariantType_Nil == parReply.which())
return empty_str;
assert(RedisVariantType_String == parReply.which());
return boost::get<std::string>(parReply);
}
long long get_integer_autoconv_if_str (const Reply &parReply) {
using dhandy::lexical_cast;
const auto type = parReply.which();
switch (type) {
case RedisVariantType_Integer:
return get_integer(parReply);
case RedisVariantType_String:
return lexical_cast<long long>(get_string(parReply));
default:
assert(false);
return 0;
}
}
const std::vector<Reply>& get_array (const Reply& parReply) {
assert(RedisVariantType_Array == parReply.which());
return boost::get<std::vector<Reply>>(parReply);
}
const ErrorString& get_error_string (const Reply& parReply) {
assert(RedisVariantType_Error == parReply.which());
return boost::get<ErrorString>(parReply);
}
template <>
const std::string& get<std::string> (const Reply& parReply) {
return get_string(parReply);
}
template <>
const std::vector<Reply>& get<std::vector<Reply>> (const Reply& parReply) {
return get_array(parReply);
}
template <>
const long long& get<long long> (const Reply& parReply) {
return get_integer(parReply);
}
template <>
const ErrorString& get<ErrorString> (const Reply& parReply) {
return get_error_string(parReply);
}
template const std::string& get<std::string> ( const Reply& parReply );
template const std::vector<Reply>& get<std::vector<Reply>> ( const Reply& parReply );
template const long long& get<long long> ( const Reply& parReply );
template const ErrorString& get<ErrorString> ( const Reply& parReply );
} //namespace redis

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/* Copyright 2016, Michele Santullo
* This file is part of "incredis".
*
* "incredis" is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* "incredis" is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with "incredis". If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef id93FA96E3071745D9A1E45D4D29B9F7D0
#define id93FA96E3071745D9A1E45D4D29B9F7D0
#include <boost/variant/variant.hpp>
#include <string>
#include <vector>
namespace redis {
struct Reply;
class ErrorString {
public:
ErrorString ( const char* parCStr, std::size_t parLen ) :
m_msg(parCStr, parLen)
{ }
const std::string& message ( void ) const noexcept { return m_msg; }
private:
std::string m_msg;
};
class StatusString {
public:
StatusString ( const char* parCStr, std::size_t parLen ) :
m_msg(parCStr, parLen)
{ }
const std::string& message ( void ) const noexcept { return m_msg; }
bool is_ok ( void ) const { return "OK" == m_msg; }
private:
std::string m_msg;
};
namespace implem {
using RedisVariantType = boost::variant<
long long,
std::string,
std::vector<Reply>,
ErrorString,
StatusString,
std::nullptr_t
>;
} //namespace implem
enum RedisVariantTypes {
RedisVariantType_Integer = 0,
RedisVariantType_String,
RedisVariantType_Array,
RedisVariantType_Error,
RedisVariantType_Status,
RedisVariantType_Nil
};
struct Reply : implem::RedisVariantType {
using base_class = implem::RedisVariantType;
Reply ( void ) = default;
Reply ( long long parVal ) : base_class(parVal) {}
Reply ( std::string&& parVal ) : base_class(std::move(parVal)) {}
Reply ( std::vector<Reply>&& parVal ) : base_class(std::move(parVal)) {}
Reply ( ErrorString&& parVal ) : base_class(std::move(parVal)) {}
Reply ( StatusString&& parVal ) : base_class(std::move(parVal)) {}
Reply ( std::nullptr_t parVal ) : base_class(parVal) {}
~Reply ( void ) noexcept = default;
};
const long long& get_integer ( const Reply& parReply );
long long get_integer_autoconv_if_str ( const Reply& parReply );
const std::string& get_string ( const Reply& parReply );
const std::vector<Reply>& get_array ( const Reply& parReply );
const ErrorString& get_error_string ( const Reply& parReply );
template <typename T>
const T& get ( const Reply& parReply );
} //namespace redis
#endif

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/* Copyright 2016, Michele Santullo
* This file is part of "incredis".
*
* "incredis" is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* "incredis" is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with "incredis". If not, see <http://www.gnu.org/licenses/>.
*/
#include "scan_iterator.hpp"
#include "duckhandy/lexical_cast.hpp"
#include "command.hpp"
#include <cassert>
#include <ciso646>
#include <string>
namespace redis {
namespace implem {
ScanIteratorBaseClass::ScanIteratorBaseClass (Command* parCommand) :
ScanIteratorBaseClass(parCommand, boost::string_ref())
{
}
ScanIteratorBaseClass::ScanIteratorBaseClass (Command* parCommand, boost::string_ref parMatchPattern) :
m_command(parCommand),
m_match_pattern(parMatchPattern)
{
assert(m_command);
assert(m_command->is_connected());
}
bool ScanIteratorBaseClass::is_connected() const {
return m_command and m_command->is_connected();
}
Reply ScanIteratorBaseClass::run (const char* parCommand, long long parScanContext, std::size_t parCount) {
const auto scan_context = dhandy::lexical_cast<std::string>(parScanContext);
const auto count_hint = dhandy::lexical_cast<std::string>(parCount);
if (m_match_pattern.empty())
return m_command->run(parCommand, scan_context, "COUNT", count_hint);
else
return m_command->run(parCommand, scan_context, "MATCH", m_match_pattern, "COUNT", count_hint);
}
Reply ScanIteratorBaseClass::run (const char* parCommand, const boost::string_ref& parParameter, long long parScanContext, std::size_t parCount) {
const auto scan_context = dhandy::lexical_cast<std::string>(parScanContext);
const auto count_hint = dhandy::lexical_cast<std::string>(parCount);
if (m_match_pattern.empty())
return m_command->run(parCommand, parParameter, scan_context, "COUNT", count_hint);
else
return m_command->run(parCommand, parParameter, scan_context, "MATCH", m_match_pattern, "COUNT", count_hint);
}
} //namespace implem
} //namespace redis

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/* Copyright 2016, Michele Santullo
* This file is part of "incredis".
*
* "incredis" is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* "incredis" is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with "incredis". If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef id774125B851514A26BD7C2AD1D804D732
#define id774125B851514A26BD7C2AD1D804D732
#include "reply.hpp"
#include "duckhandy/has_method.hpp"
#include "enum.h"
#include <boost/iterator/iterator_facade.hpp>
#include <type_traits>
#include <vector>
#include <cstddef>
#include <boost/utility/string_ref.hpp>
namespace redis {
template <typename ValueFetch>
class ScanIterator;
class Command;
namespace implem {
template <typename ValueFetch>
using ScanIteratorBaseIterator = boost::iterator_facade<ScanIterator<ValueFetch>, const typename ValueFetch::value_type, boost::forward_traversal_tag>;
class ScanIteratorBaseClass {
protected:
explicit ScanIteratorBaseClass ( Command* parCommand );
ScanIteratorBaseClass ( Command* parCommand, boost::string_ref parMatchPattern );
~ScanIteratorBaseClass ( void ) noexcept = default;
bool is_connected ( void ) const;
Reply run ( const char* parCommand, long long parScanContext, std::size_t parCount );
Reply run ( const char* parCommand, const boost::string_ref& parParameter, long long parScanContext, std::size_t parCount );
bool is_equal ( const ScanIteratorBaseClass& parOther ) const { return m_command == parOther.m_command; }
private:
Command* m_command;
boost::string_ref m_match_pattern;
};
} //namespace implem
BETTER_ENUM(ScanCommands, char,
SCAN, SSCAN, ZSCAN, HSCAN
);
template <typename ValueFetch>
class ScanIterator : private implem::ScanIteratorBaseClass, public implem::ScanIteratorBaseIterator<ValueFetch>, private ValueFetch {
friend class boost::iterator_core_access;
typedef implem::ScanIteratorBaseIterator<ValueFetch> base_iterator;
define_has_method(scan_target, ScanTarget);
public:
typedef typename base_iterator::difference_type difference_type;
typedef typename base_iterator::value_type value_type;
typedef typename base_iterator::pointer pointer;
typedef typename base_iterator::reference reference;
typedef typename base_iterator::iterator_category iterator_category;
template <typename Dummy=ValueFetch, typename=typename std::enable_if<not HasScanTargetMethod<Dummy>::value>::type>
ScanIterator ( Command* parCommand, bool parEnd, boost::string_ref parMatchPattern=boost::string_ref() );
template <typename Dummy=ValueFetch, typename=typename std::enable_if<HasScanTargetMethod<Dummy>::value>::type>
ScanIterator ( Command* parCommand, boost::string_ref parKey, bool parEnd, boost::string_ref parMatchPattern=boost::string_ref() );
private:
template <typename T>
Reply forward_scan_command ( typename std::enable_if<HasScanTargetMethod<T>::value, long long>::type parContext );
template <typename T>
Reply forward_scan_command ( typename std::enable_if<not HasScanTargetMethod<T>::value, long long>::type parContext );
bool is_end ( void ) const;
void increment ( void );
bool equal ( const ScanIterator& parOther ) const;
const value_type& dereference ( void ) const;
std::vector<value_type> m_reply;
long long m_scan_context;
std::size_t m_curr_index;
};
template <typename T>
struct ScanSingleValues {
typedef T value_type;
static constexpr const char* command ( void ) { return "SCAN"; }
static constexpr const std::size_t step = 1;
static constexpr const std::size_t work_count = 10;
static const T& make_value ( const Reply* parItem );
};
template <typename T>
struct ScanSingleValuesInKey {
typedef T value_type;
explicit ScanSingleValuesInKey ( boost::string_ref parScanTarget ) : m_scan_target(parScanTarget) {}
static constexpr const char* command ( void ) { return "SSCAN"; }
static constexpr const std::size_t step = 1;
static constexpr const std::size_t work_count = 10;
static const T& make_value ( const Reply* parItem );
boost::string_ref scan_target ( void ) const { return m_scan_target; }
private:
boost::string_ref m_scan_target;
};
template <typename P, char Command, typename A=decltype(P().first), typename B=decltype(P().second)>
struct ScanPairs {
static_assert(Command == ScanCommands::HSCAN or Command == ScanCommands::ZSCAN, "Invalid scan command chosen");
typedef P value_type;
explicit ScanPairs ( boost::string_ref parScanTarget ) : m_scan_target(parScanTarget) {}
static constexpr const char* command ( void ) { return ScanCommands::_from_integral(Command)._to_string(); }
static constexpr const std::size_t step = 2;
static constexpr const std::size_t work_count = 10;
static value_type make_value ( const Reply* parItem );
boost::string_ref scan_target ( void ) const { return m_scan_target; }
private:
boost::string_ref m_scan_target;
};
} //namespace redis
#include "scan_iterator.inl"
#endif

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/* Copyright 2016, Michele Santullo
* This file is part of "incredis".
*
* "incredis" is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* "incredis" is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with "incredis". If not, see <http://www.gnu.org/licenses/>.
*/
#include "command.hpp"
#include <cassert>
#include <ciso646>
namespace redis {
namespace implem {
} //namespace implem
template <typename ValueFetch>
template <typename Dummy, typename>
ScanIterator<ValueFetch>::ScanIterator (Command* parCommand, bool parEnd, boost::string_ref parMatchPattern) :
implem::ScanIteratorBaseClass(parCommand, parMatchPattern),
implem::ScanIteratorBaseIterator<ValueFetch>(),
ValueFetch(),
m_reply(),
m_scan_context(0),
m_curr_index(0)
{
if (not parEnd) {
m_curr_index = 1; //Some arbitrary value so is_end()==false
assert(not is_end());
this->increment();
}
else {
assert(is_end());
}
}
template <typename ValueFetch>
template <typename Dummy, typename>
ScanIterator<ValueFetch>::ScanIterator (Command* parCommand, boost::string_ref parKey, bool parEnd, boost::string_ref parMatchPattern) :
implem::ScanIteratorBaseClass(parCommand, parMatchPattern),
implem::ScanIteratorBaseIterator<ValueFetch>(),
ValueFetch(parKey),
m_reply(),
m_scan_context(0),
m_curr_index(0)
{
if (not parEnd) {
m_curr_index = 1; //Some arbitrary value so is_end()==false
assert(not is_end());
this->increment();
}
else {
assert(is_end());
}
}
template <typename ValueFetch>
bool ScanIterator<ValueFetch>::is_end() const {
return not m_curr_index and m_reply.empty() and not m_scan_context;
}
template <typename ValueFetch>
void ScanIterator<ValueFetch>::increment() {
assert(not is_end());
static_assert(ValueFetch::step > 0, "Can't have an increase step of 0");
if (m_curr_index + 1 < m_reply.size()) {
++m_curr_index;
}
else if (m_curr_index + 1 == m_reply.size() and not m_scan_context) {
m_reply.clear();
m_curr_index = 0;
}
else {
std::vector<Reply> array_reply;
long long new_context = m_scan_context;
do {
auto whole_reply = this->forward_scan_command<ValueFetch>(new_context);
array_reply = get_array(whole_reply);
assert(2 == array_reply.size());
assert(array_reply.size() % ValueFetch::step == 0);
new_context = get_integer_autoconv_if_str(array_reply[0]);
} while (new_context and get_array(array_reply[1]).empty());
const auto variant_array = get_array(array_reply[1]);
assert(variant_array.size() % ValueFetch::step == 0);
const std::size_t expected_reply_count = variant_array.size() / ValueFetch::step;
m_reply.clear();
m_reply.reserve(expected_reply_count);
for (std::size_t z = 0; z < variant_array.size(); z += ValueFetch::step) {
m_reply.push_back(ValueFetch::make_value(variant_array.data() + z));
}
assert(expected_reply_count == m_reply.size());
m_scan_context = new_context;
m_curr_index = 0;
}
}
template <typename ValueFetch>
bool ScanIterator<ValueFetch>::equal (const ScanIterator& parOther) const {
return
(&parOther == this) or
(is_end() and parOther.is_end()) or
(
not (is_end() or parOther.is_end()) and
implem::ScanIteratorBaseClass::is_equal(parOther) and
(m_scan_context == parOther.m_scan_context) and
(m_curr_index == parOther.m_curr_index) and
(m_reply.size() == parOther.m_reply.size())
);
}
template <typename ValueFetch>
auto ScanIterator<ValueFetch>::dereference() const -> const value_type& {
assert(not m_reply.empty());
assert(m_curr_index < m_reply.size());
return m_reply[m_curr_index];
}
template <typename ValueFetch>
template <typename T>
Reply ScanIterator<ValueFetch>::forward_scan_command (typename std::enable_if<HasScanTargetMethod<T>::value, long long>::type parContext) {
return implem::ScanIteratorBaseClass::run(T::command(), T::scan_target(), parContext, T::work_count);
}
template <typename ValueFetch>
template <typename T>
Reply ScanIterator<ValueFetch>::forward_scan_command (typename std::enable_if<not HasScanTargetMethod<T>::value, long long>::type parContext) {
return implem::ScanIteratorBaseClass::run(T::command(), parContext, T::work_count);
}
template <typename T>
auto ScanSingleValues<T>::make_value (const Reply* parItem) -> const value_type& {
assert(parItem);
return get<T>(*parItem);
}
template <typename T>
auto ScanSingleValuesInKey<T>::make_value (const Reply* parItem) -> const value_type& {
assert(parItem);
return get<T>(*parItem);
}
template <typename P, char Command, typename A, typename B>
auto ScanPairs<P, Command, A, B>::make_value (const Reply* parItem) -> value_type {
assert(parItem);
return value_type(get<A>(parItem[0]), get<B>(parItem[1]));
}
} //namespace redis

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/* Copyright 2016, Michele Santullo
* This file is part of "incredis".
*
* "incredis" is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* "incredis" is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with "incredis". If not, see <http://www.gnu.org/licenses/>.
*/
#include "script.hpp"
namespace redis {
Script::Script() :
m_sha1(),
m_manager(nullptr)
{
}
Script::Script (boost::string_ref parSha1, ScriptManager& parManager) :
m_sha1(parSha1),
m_manager(&parManager)
{
}
} //namespace redis

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/* Copyright 2016, Michele Santullo
* This file is part of "incredis".
*
* "incredis" is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* "incredis" is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with "incredis". If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef id5B30CDA57F894CD6888093B64F9433DA
#define id5B30CDA57F894CD6888093B64F9433DA
#include "batch.hpp"
#include "duckhandy/lexical_cast.hpp"
#include "duckhandy/sequence_bt.hpp"
#include <boost/utility/string_ref.hpp>
#include <tuple>
#include <cassert>
#include <ciso646>
namespace redis {
class ScriptManager;
class Script {
public:
Script ( void );
Script ( Script&& ) = default;
Script ( boost::string_ref parSha1, ScriptManager& parManager );
~Script ( void ) noexcept = default;
template <typename... Keys, typename... Values>
void run ( Batch& parBatch, const std::tuple<Keys...>& parKeys, const std::tuple<Values...>& parValues );
Script& operator= ( Script&& ) = default;
private:
template <typename... Keys, typename... Values, std::size_t... KeyIndices, std::size_t... ValueIndices>
void run_with_indices ( Batch& parBatch, const std::tuple<Keys...>& parKeys, const std::tuple<Values...>& parValues, dhandy::bt::index_seq<KeyIndices...>, dhandy::bt::index_seq<ValueIndices...> );
boost::string_ref m_sha1;
ScriptManager* m_manager;
};
template <typename... Keys, typename... Values>
void Script::run (Batch& parBatch, const std::tuple<Keys...>& parKeys, const std::tuple<Values...>& parValues) {
this->run_with_indices(
parBatch,
parKeys,
parValues,
::dhandy::bt::index_range<0, sizeof...(Keys)>(),
::dhandy::bt::index_range<0, sizeof...(Values)>()
);
}
template <typename... Keys, typename... Values, std::size_t... KeyIndices, std::size_t... ValueIndices>
void Script::run_with_indices (Batch& parBatch, const std::tuple<Keys...>& parKeys, const std::tuple<Values...>& parValues, dhandy::bt::index_seq<KeyIndices...>, dhandy::bt::index_seq<ValueIndices...>) {
static_assert(sizeof...(Keys) == sizeof...(KeyIndices), "Wrong index count");
static_assert(sizeof...(Values) == sizeof...(ValueIndices), "Wrong value count");
static_assert(sizeof...(Keys) == std::tuple_size<std::tuple<Keys...>>::value, "Wrong key count");
static_assert(sizeof...(Values) == std::tuple_size<std::tuple<Values...>>::value, "Wrong value count");
assert(not m_sha1.empty());
assert(m_manager);
parBatch.run(
"EVALSHA",
m_sha1,
dhandy::lexical_cast<std::string>(sizeof...(Keys)),
std::get<KeyIndices>(parKeys)...,
std::get<ValueIndices>(parValues)...
);
}
} //namespace redis
#endif

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/* Copyright 2016, Michele Santullo
* This file is part of "incredis".
*
* "incredis" is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* "incredis" is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with "incredis". If not, see <http://www.gnu.org/licenses/>.
*/
#include "script_manager.hpp"
#include "duckhandy/lexical_cast.hpp"
#include "command.hpp"
#include <cassert>
#if defined(MAKE_SHA1_WITH_CRYPTOPP)
# include <crypto++/sha.h>
#endif
namespace redis {
namespace {
#if defined(MAKE_SHA1_WITH_CRYPTOPP)
struct LuaScriptHash {
union {
struct {
uint64_t part_a, part_b;
uint32_t part_c;
};
uint8_t raw_bytes[20];
};
};
#endif
} //unnamed namespace
ScriptManager::ScriptManager (Command* parCommand) :
m_command(parCommand)
{
assert(m_command);
}
#if defined(MAKE_SHA1_WITH_CRYPTOPP)
boost::string_ref ScriptManager::add_lua_script_ifn (const std::string& parScript) {
assert(m_command->is_connected());
if (parScript.empty())
return boost::string_ref();
using dhandy::lexical_cast;
static_assert(20 == CryptoPP::SHA1::DIGESTSIZE, "Unexpected SHA1 digest size");
static_assert(sizeof(LuaScriptHash) >= CryptoPP::SHA1::DIGESTSIZE, "Wrong SHA1 struct size");
static_assert(Sha1Array().size() == CryptoPP::SHA1::DIGESTSIZE * 2, "Wrong array size");
LuaScriptHash digest;
CryptoPP::SHA1().CalculateDigest(digest.raw_bytes, reinterpret_cast<const uint8_t*>(parScript.data()), parScript.size());
//TODO: change when lexical_cast will support arrays
auto sha1_str_parta = lexical_cast<std::string, dhandy::tags::hexl>(__builtin_bswap64(digest.part_a));
auto sha1_str_partb = lexical_cast<std::string, dhandy::tags::hexl>(__builtin_bswap64(digest.part_b));
auto sha1_str_partc = lexical_cast<std::string, dhandy::tags::hexl>(__builtin_bswap32(digest.part_c));
const std::string sha1_str =
std::string(sizeof(digest.part_a) * 2 - sha1_str_parta.size(), '0') + sha1_str_parta +
std::string(sizeof(digest.part_b) * 2 - sha1_str_partb.size(), '0') + sha1_str_partb +
std::string(sizeof(digest.part_c) * 2 - sha1_str_partc.size(), '0') + sha1_str_partc
;
Sha1Array sha1_array;
assert(sha1_str.size() == sha1_array.size());
std::copy(sha1_str.begin(), sha1_str.end(), sha1_array.begin());
auto it_found = m_known_hashes.find(sha1_array);
const bool was_present = (m_known_hashes.end() != it_found);
if (was_present) {
return boost::string_ref(it_found->data(), it_found->size());
}
auto reply = m_command->run("SCRIPT", "LOAD", parScript);
assert(not was_present);
assert(get_string(reply) == sha1_str);
const auto it_inserted = m_known_hashes.insert(it_found, sha1_array);
(void)reply;
return boost::string_ref(it_inserted->data(), it_inserted->size());
}
#else
boost::string_ref ScriptManager::add_lua_script_ifn (const std::string& parScript) {
assert(m_command->is_connected());
auto it_found = m_known_scripts.find(parScript);
const bool was_present = (m_known_scripts.end() != it_found);
if (was_present) {
return boost::string_ref(it_found->second.data(), it_found->second.size());
}
auto reply = m_command->run("SCRIPT", "LOAD", parScript);
assert(not was_present);
const auto sha1_str = get_string(reply);
Sha1Array sha1_array;
std::copy(sha1_str.begin(), sha1_str.end(), sha1_array.begin());
auto it_inserted = m_known_scripts.insert(it_found, std::make_pair(parScript, sha1_array));
return boost::string_ref(it_inserted->second.data(), it_inserted->second.size());
}
#endif
} //namespace redis

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/* Copyright 2016, Michele Santullo
* This file is part of "incredis".
*
* "incredis" is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* "incredis" is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with "incredis". If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef id8E124FF76DF449CDB8FBA806F8EF4E78
#define id8E124FF76DF449CDB8FBA806F8EF4E78
#include "incredisConfig.h"
#if defined(WITH_CRYPTOPP)
# define MAKE_SHA1_WITH_CRYPTOPP
#endif
#include <boost/utility/string_ref.hpp>
#if defined(MAKE_SHA1_WITH_CRYPTOPP)
# include <set>
#else
# include <map>
#endif
#include <string>
#include <array>
#include <boost/utility/string_ref.hpp>
namespace redis {
class Command;
class ScriptManager {
public:
explicit ScriptManager ( Command* parCommand );
boost::string_ref submit_lua_script ( const std::string& parScript );
private:
using Sha1Array = std::array<char, 40>;
boost::string_ref add_lua_script_ifn ( const std::string& parScript );
Command* const m_command;
#if defined(MAKE_SHA1_WITH_CRYPTOPP)
std::set<Sha1Array> m_known_hashes;
#else
std::map<std::string, Sha1Array> m_known_scripts;
#endif
};
inline boost::string_ref ScriptManager::submit_lua_script (const std::string& parScript) {
return add_lua_script_ifn(parScript);
}
} //namespace redis
#endif