wraitii
1ff20e8f6a
This removes pthread mutexes/threads from: - vfs - the resource handler manager - timer - the network server. This allows removing it from our general posix include header. Differential Revision: https://code.wildfiregames.com/D1920 This was SVN commit r22666.
132 lines
4.2 KiB
C++
132 lines
4.2 KiB
C++
/* Copyright (C) 2010 Wildfire Games.
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*
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* Permission is hereby granted, free of charge, to any person obtaining
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* a copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sublicense, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice shall be included
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* in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
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* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
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* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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/*
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* definitions for a subset of POSIX.
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*/
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/*
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[KEEP IN SYNC WITH WIKI]
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this header makes available commonly used POSIX (Portable Operating System
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Interface) definitions, e.g. thread, file I/O and socket APIs.
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on Linux and OS X we just include the requisite headers; Win32 doesn't really
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support POSIX (*), so we have to implement everything ourselves.
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rationale: this is preferable to a wrapper for several reasons:
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- less code (implementation is only needed on Win32)
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- no lock-in (the abstraction may prevent not-designed-for operations
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that the POSIX interface would have allowed)
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- familiarity (many coders already know POSIX)
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if a useful definition is missing, feel free to add it!
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implementation reference is the "Single Unix Specification v3"
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(http://www.unix.org/online.html) - it's similar to the POSIX standard
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(superset?) and freely available.
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* Win32 does have a POSIX subsystem (mandated by a government contract),
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but it is crippled. only apps with the PE header 'subsystem' field set to
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"POSIX" can use the appendant DLL, and then they can't call the regular
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Windows APIs. this is obviously unacceptable - GDI is needed to set up OpenGL.
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we therefore need to emulate POSIX functions using the Win32 API.
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fortunately, many POSIX functions are already implemented in the VC CRT and
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need only be renamed (e.g. _open, _stat).
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*/
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#ifndef INCLUDED_POSIX
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#define INCLUDED_POSIX
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#include <cmath> // see isfinite comment below
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#if OS_WIN
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# include "lib/sysdep/os/win/wposix/wposix.h"
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#endif
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#include "lib/posix/posix_types.h"
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// disabled to reduce dependencies. include them where needed.
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//#include "lib/posix/posix_aio.h"
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//#include "lib/posix/posix_dlfcn.h"
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//#include "lib/posix/posix_filesystem.h"
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//#include "lib/posix/posix_mman.h"
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//#include "lib/posix/posix_time.h"
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//#include "lib/posix/posix_utsname.h"
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// note: the following need only be #defined (instead of defining a
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// trampoline function) because the redefined functions are already
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// declared by standard headers.
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// provide C99 *snprintf functions if compiler doesn't already
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// (MinGW does, VC7.1 doesn't).
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#if MSC_VERSION
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# define snprintf _snprintf
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# define swprintf _snwprintf
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# define vsnprintf _vsnprintf
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# define vswprintf _vsnwprintf
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#endif
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// VC doesn't define str[n]casecmp
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#if MSC_VERSION
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#define strcasecmp _stricmp
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#define strncasecmp _strnicmp
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#define wcscasecmp _wcsicmp
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#define wcsncasecmp _wcsnicmp
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#endif
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#if OS_MACOSX
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# define EMULATE_WCSDUP 1
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# define EMULATE_WCSCASECMP 1
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#else
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# define EMULATE_WCSDUP 0
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# define EMULATE_WCSCASECMP 0
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#endif
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#if EMULATE_WCSDUP
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extern wchar_t* wcsdup(const wchar_t* str);
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#endif
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#if EMULATE_WCSCASECMP
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extern int wcscasecmp(const wchar_t* s1, const wchar_t* s2);
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#endif
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// Some systems have C99 support but in C++ they provide only std::isfinite
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// and not isfinite. C99 specifies that isfinite is a macro, so we can use
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// #ifndef and define it if it's not there already.
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// We've included <cmath> above to make sure it defines that macro.
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#ifndef isfinite
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# if MSC_VERSION
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# define isfinite _finite
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# define isnan _isnan
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# else
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# define isfinite std::isfinite
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# define isnan std::isnan
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# endif
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#endif
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#endif // #ifndef INCLUDED_POSIX
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