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101 lines
3.5 KiB
C++
101 lines
3.5 KiB
C++
// VFSDefines.h - compile config and basic setup
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// For conditions of distribution and use, see copyright notice in VFS.h
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#ifndef VFS_DEFINES_H
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#define VFS_DEFINES_H
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/* --- Config section -- modify as needed --- */
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// choose a namespace name, or comment out to disable namespacing completely (not recommended)
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#define VFS_NAMESPACE ttvfs
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// Define this to allow dealing with files > 4 GB, using non-standard functions.
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// This may or may not work with your platform/compiler, good luck.
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//#define VFS_LARGEFILE_SUPPORT
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// Define this to make all operations case insensitive.
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// Windows systems generally don't care much, but for Linux and Mac this can be used
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// to get the same behavior as on windows.
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// Additionally, this achieves full case insensitivity within the library,
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// if the the same files are accessed multiple times by the program, but with not-uniform case.
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// (no sane programmer should do this, anyway).
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// However, on non-windows systems this will decrease performance when checking for files
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// on disk (see VFSLoader.cpp).
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#define VFS_IGNORE_CASE
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// Define this to make all VFSFile, VFSDir, VFSHelper operations thread-safe.
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// If you do, do not forget to add your own implementation to VFSAtomic.cpp/.h !
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// If this is not defined, you can still do manual locking if you know what you're doing,
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// performance matters, and you implemented actual locking into the Mutex class.
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// If no Mutex implementation is provided, its operations are no-ops, beware!
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// Note: This adds a *lot* of overhead. Better ensure thread safety yourself, externally. Really!
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//#define VFS_THREADSAFE
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// By default, ttvfs uses a std::map to store stuff.
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// Uncomment the line below to use an (experimental!) hashmap.
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// With std::map, iterating over entries will always deliver them in sorted order.
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// The hashmap will deliver entries in random order, but lookup will be much faster
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// (especially if VFS_IGNORE_CASE is set!)
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//#define VFS_USE_HASHMAP
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// These are used for small, temporary memory allocations that can remain on the stack.
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// If alloca is available, this is the preferred way.
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#include <stdlib.h>
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#ifdef _WIN32
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# include <malloc.h> // MSVC/MinGW still need this for alloca. Seems to be windows-specific failure
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#endif
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#define VFS_STACK_ALLOC(size) alloca(size)
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#define VFS_STACK_FREE(ptr) /* no need to free anything here */
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// Fail-safe:
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//#define VFS_STACK_ALLOC(size) malloc(size)
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//#define VFS_STACK_FREE(ptr) free(ptr)
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/* --- End of config section --- */
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#ifdef VFS_NAMESPACE
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# define VFS_NAMESPACE_START namespace VFS_NAMESPACE {
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# define VFS_NAMESPACE_END }
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# define VFS_NAMESPACE_IMPL VFS_NAMESPACE::
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#else
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# define VFS_NAMESPACE_START
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# define VFS_NAMESPACE_END
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# define VFS_NAMESPACE_IMPL
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#endif
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VFS_NAMESPACE_START
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#ifdef VFS_LARGEFILE_SUPPORT
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# if defined(_MSC_VER)
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typedef __int64 vfspos;
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# else
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typedef long long vfspos;
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# endif
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#else
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typedef unsigned int vfspos;
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#endif
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// simple guard wrapper, works also if VFS_THREADSAFE is not defined
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#define VFS_GUARD(obj) VFS_NAMESPACE_IMPL Guard __vfs_stack_guard((obj)->mutex())
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// defines for optional auto-locking; only if VFS_THREADSAFE is defined
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#ifdef VFS_THREADSAFE
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# define VFS_GUARD_OPT(obj) VFS_GUARD(obj)
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#else
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# define VFS_GUARD_OPT(obj)
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#endif
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#if defined(_MSC_VER) || defined(__MINGW32__) || defined(__MINGW64__)
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# define VFS_STRICMP stricmp
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#else
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# define VFS_STRICMP strcasecmp
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#endif
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static const vfspos npos = vfspos(-1);
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typedef void *(*allocator_func)(size_t);
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typedef void (*delete_func)(void*);
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VFS_NAMESPACE_END
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#endif
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