mirror of
https://github.com/stefanocasazza/ULib.git
synced 2025-09-28 19:05:55 +08:00
383 lines
12 KiB
C
383 lines
12 KiB
C
/* platform.h */
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#ifndef ULIB_PLATFORM_H
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#define ULIB_PLATFORM_H
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#ifndef _REENTRANT
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#define _REENTRANT 1
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#endif
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#ifndef __PTH__
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# ifndef _THREADSAFE
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# define _THREADSAFE 1
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# endif
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# ifndef _POSIX_PTHREAD_SEMANTICS
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# define _POSIX_PTHREAD_SEMANTICS
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# endif
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#endif
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/* see if targeting legacy Microsoft windows platform */
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#if defined(LINUX) || defined(__LINUX__) || defined(__linux__) || defined(__linux)
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# define U_LINUX
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#elif defined(_MSC_VER) || defined(WIN32) || defined(_WIN32)
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# define _MSWINDOWS_
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# if defined(_MSC_VER)
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# define NOMINMAX
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# endif
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# if defined(_M_X64) || defined(_M_ARM)
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# define _MSCONDITIONALS_
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# ifndef _WIN32_WINNT
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# define _WIN32_WINNT 0x0600
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# endif
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# endif
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# ifdef _MSC_VER
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# pragma warning(disable: 4251)
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# pragma warning(disable: 4996)
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# pragma warning(disable: 4355)
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# pragma warning(disable: 4290)
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# pragma warning(disable: 4291)
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# endif
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# if defined(__BORLANDC__) && !defined(__MT__)
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# error Please enable multithreading
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# endif
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# if defined(_MSC_VER) && !defined(_MT)
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# error Please enable multithreading (Project -> Settings -> C/C++ -> Code Generation -> Use Runtime Library)
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# endif
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/* Require for compiling with critical sections */
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# ifndef _WIN32_WINNT
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# define _WIN32_WINNT 0x0600
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# endif
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/* Make sure we're consistent with _WIN32_WINNT */
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# ifndef WINVER
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# define WINVER _WIN32_WINNT
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# endif
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# ifndef WIN32_LEAN_AND_MEAN
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# define WIN32_LEAN_AND_MEAN
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# endif
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#endif
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#ifdef __GNUC__
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# if __GNUC__ > 1
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# if __GNUC__ < 3
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# ifndef _GNU_SOURCE
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# define _GNU_SOURCE
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# endif
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# else
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# define __PRINTF(x,y) __attribute__ ((format (printf, x, y)))
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# define __SCANF(x, y) __attribute__ ((format (scanf, x, y)))
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# define __MALLOC __attribute__ ((malloc))
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# endif
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# if !defined(__STRICT_ANSI__) && !defined(__PEDANTIC__)
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# define DYNAMIC_LOCAL_ARRAYS
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# ifndef __cplusplus
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# include <stdbool.h> /* C99 only */
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# endif
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# endif
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# endif
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# ifdef HAVE_BUILTIN_CPU_INIT
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# define U_CPU_SUPPORT(x,func) __attribute__ ((target (#x))) func
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# else
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# define U_CPU_SUPPORT(x,func) func_##x
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# endif
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/* GCC have printf type attribute check */
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# define GCC_VERSION_NUM (__GNUC__ * 10000 + \
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__GNUC_MINOR__ * 100 + \
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__GNUC_PATCHLEVEL__)
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# if GCC_VERSION_NUM > 29600 && GCC_VERSION_NUM != 30303 /* Test for GCC == 3.3.3 (SuSE Linux) */
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# if defined(U_LINUX) || defined(_MSWINDOWS_)
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# define __pure __attribute__((pure))
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# endif
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# define LIKELY(x) __builtin_expect(!!(x), 1)
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# define UNLIKELY(x) __builtin_expect(!!(x), 0)
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# define __noreturn __attribute__((noreturn))
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# define PRINTF_ATTRIBUTE(a,b) __attribute__((__format__(printf, a, b)))
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# define PREFETCH_ATTRIBUTE(addr,rw) __builtin_prefetch(addr, rw, 1);
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# else
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# define __pure
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# define __noreturn
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# define LIKELY(x) (x)
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# define UNLIKELY(x) (x)
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# define PRINTF_ATTRIBUTE(a,b)
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# define PREFETCH_ATTRIBUTE(addr,rw)
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/**
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* Mark functions as cold. gcc will assume any path leading to a call to them will be unlikely.
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* gcc also has a __attribute__((__hot__)) to move hot functions into a special section
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*/
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# if GCC_VERSION_NUM < 40300
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# define __hot
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# define __cold
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# else
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# define __hot __attribute__((hot))
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# define __cold __attribute__((cold))
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# endif
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# endif
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/**
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* ---------------------------------------------------------
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* C++0x features supported in GCC:
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* ---------------------------------------------------------
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* g++ -E -dM -std=c++98 -x c++ /dev/null > std1 &&
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* g++ -E -dM -std=c++0x -x c++ /dev/null > std2 &&
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* diff -u std1 std2 | grep '[+|-]^*#define' && rm std1 std2
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* ---------------------------------------------------------
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* Output with 4.8.0:
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* ---------------------------------------------------------
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* +#define __GXX_EXPERIMENTAL_CXX0X__ 1
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* -#define __cplusplus 199711L
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* +#define __cplusplus 201103L
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* +#define __GNUC_STDC_INLINE__ 1
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* -#define __GNUC_GNU_INLINE__ 1
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* ---------------------------------------------------------
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*/
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# if defined(__GXX_EXPERIMENTAL_CXX0X__) || __cplusplus >= 201103L
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# if (__GNUC__ * 100 + __GNUC_MINOR__) >= 405
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/* C++11 features supported in GCC 4.5: */
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# define U_COMPILER_DECLTYPE
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# define U_COMPILER_RVALUE_REFS
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# define U_COMPILER_STATIC_ASSERT
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# define U_COMPILER_VARIADIC_MACROS
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# define U_COMPILER_ATOMICS
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# define U_COMPILER_AUTO_FUNCTION
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# define U_COMPILER_AUTO_TYPE
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# define U_COMPILER_CLASS_ENUM
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# define U_COMPILER_DEFAULT_MEMBERS
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# define U_COMPILER_DELETE_MEMBERS
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# define U_COMPILER_EXTERN_TEMPLATES
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# define U_COMPILER_INITIALIZER_LISTS
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# define U_COMPILER_UNICODE_STRINGS
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# define U_COMPILER_VARIADIC_TEMPLATES
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# define U_COMPILER_LAMBDA
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# define U_COMPILER_RAW_STRINGS
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# endif
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# if (__GNUC__ * 100 + __GNUC_MINOR__) >= 406
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/* C++11 features supported in GCC 4.6: */
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# define U_COMPILER_CONSTEXPR
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# define U_COMPILER_NULLPTR
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# define U_COMPILER_UNRESTRICTED_UNIONS
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# define U_COMPILER_RANGE_FOR
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# endif
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# if (__GNUC__ * 100 + __GNUC_MINOR__) >= 407
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/* GCC 4.6.x has problems dealing with noexcept expressions,
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* so turn the feature on for 4.7 and above, only */
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# define U_COMPILER_NOEXCEPT
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/* C++11 features supported in GCC 4.7: */
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# define U_COMPILER_NONSTATIC_MEMBER_INIT
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# define U_COMPILER_DELEGATING_CONSTRUCTORS
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# define U_COMPILER_EXPLICIT_OVERRIDES
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# define U_COMPILER_TEMPLATE_ALIAS
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# define U_COMPILER_UDL
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# endif
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# if (__GNUC__ * 100 + __GNUC_MINOR__) >= 408
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# define U_COMPILER_ATTRIBUTES
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# define U_COMPILER_ALIGNAS
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# define U_COMPILER_ALIGNOF
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# define U_COMPILER_INHERITING_CONSTRUCTORS
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# define U_COMPILER_THREAD_LOCAL
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# endif
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# endif
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#else
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# define GCC_VERSION_NUM 0
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# define PRINTF_ATTRIBUTE(a,b)
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# define __pure
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# define __hot
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# define __cold
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# define LIKELY(x) (x)
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# define UNLIKELY(x) (x)
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# define U_CPU_SUPPORT(x,func) func_##x
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# define __noreturn
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# define PREFETCH_ATTRIBUTE(addr,rw)
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# if !defined(FLEX_SCANNER) && !defined(__FreeBSD__) && !defined(MACOSX) /* _POSIX_SOURCE too restrictive */
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/**
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* Header to request specific standard support. Before including it, one
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* of the following symbols must be defined (1003.1-1988 isn't supported):
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*
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* SUV_POSIX1990 for 1003.1-1990
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* SUV_POSIX1993 for 1003.1b-1993 - real-time
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* SUV_POSIX1996 for 1003.1-1996
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* SUV_SUS1 for Single UNIX Specification, v. 1 (UNIX 95)
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* SUV_SUS2 for Single UNIX Specification, v. 2 (UNIX 98)
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* SUV_SUS3 for Single UNIX Specification, v. 3
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*/
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# undef SUV_POSIX1990
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# undef SUV_POSIX1993
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# undef SUV_POSIX1996
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# undef SUV_SUS1
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# define SUV_SUS2 1
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# undef SUV_SUS3
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# include <ulib/internal/suvreq.h>
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# endif
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#endif /* __GNUC__ */
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#ifndef __MALLOC
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#define __MALLOC
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#define __SCANF(x, y)
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#define __PRINTF(x, y)
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#endif
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#ifndef DEBUG
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# ifndef NDEBUG
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# define NDEBUG
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# endif
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#endif
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#ifdef DEBUG
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# ifdef NDEBUG
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# undef NDEBUG
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# endif
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#endif
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/**
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* Shared library support
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*
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* Visibility is available for GCC newer than 3.4. See: http://gcc.gnu.org/bugzilla/show_bug.cgi?id=9283
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*
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* The U_NO_EXPORT macro marks the symbol of the given variable to be hidden. A hidden symbol is stripped
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* during the linking step, so it can't be used from outside the resulting library, which is similar to
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* static. However, static limits the visibility to the current compilation unit. Hidden symbols can still
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* be used in multiple compilation units.
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*
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* \code
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* int U_EXPORT bar;
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* int U_NO_EXPORT foo;
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* \end
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*/
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#ifdef _MSWINDOWS_
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# define U_EXPORT __declspec(dllexport)
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# define U_NO_EXPORT
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#elif defined(HAVE_GNUC_VISIBILTY)
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# define U_EXPORT __attribute__ ((visibility("default")))
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# define U_NO_EXPORT __attribute__ ((visibility("hidden")))
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#else
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# define U_EXPORT
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# define U_NO_EXPORT
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#endif
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/**
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* Note that IS_ABSOLUTE_PATH accepts d:foo as well, although it is only semi-absolute. This is because the users of IS_ABSOLUTE_PATH
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* want to know whether to prepend the current working directory to a file name, which should not be done with a name like d:foo
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*/
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#ifdef _MSWINDOWS_
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# define PATH_SEPARATOR '\\'
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# define IS_DIR_SEPARATOR(c) ((c) == '/' || (c) == '\\')
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# define IS_ABSOLUTE_PATH(f) (IS_DIR_SEPARATOR((f)[0]) || (((f)[0]) && ((f)[1] == ':')))
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# define U_PATH_CONV(s) u_slashify(s, '/', '\\')
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# define U_PATH_SHELL "sh.exe"
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# define U_LIB_SUFFIX "dll"
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#else
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# define PATH_SEPARATOR '/'
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# ifdef __clang__
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# define U_COMPILER_RVALUE_REFS
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# define U_COMPILER_DELETE_MEMBERS
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# define IS_DIR_SEPARATOR(c) (c) == '/' /* to avoid warning: equality comparison with extraneous parentheses... */
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# else
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# define IS_DIR_SEPARATOR(c) ((c) == '/')
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# endif
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# define IS_ABSOLUTE_PATH(f) IS_DIR_SEPARATOR((f)[0])
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# define U_PATH_CONV(s) s
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# define U_PATH_SHELL "/bin/sh"
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# define U_LIB_SUFFIX "so"
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/* unix is binary by default */
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# ifndef O_BINARY
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# define O_BINARY 0
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# endif
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# ifndef O_TEXT
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# define O_TEXT 0
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# endif
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#endif
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#ifdef _MSWINDOWS_
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# ifndef ENABLE_LFS
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# define __NO_MINGW_LFS
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# endif
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# ifdef FD_SETSIZE
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# undef FD_SETSIZE
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# endif
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# define FD_SETSIZE 1024 /* larger than default (64) */
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# define HAVE_GMTIME_R 1 /* to avoid replace gmtime_r */
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# define _POSIX_THREAD_SAFE_FUNCTIONS 1 /* for localtime_r and gmtime_r */
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/* #undef HAVE_GETOPT_LONG // within WINE don't work */
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# define HAVE_WORKING_SOCKET_OPTION_SO_RCVTIMEO 1
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# undef HAVE_NANOSLEEP
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# include <ulib/base/win32/system.h>
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#else
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# ifndef CONFIG_MMAP_ALLOW_UNINITIALIZED
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# define CONFIG_MMAP_ALLOW_UNINITIALIZED
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# endif
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# include <sys/mman.h>
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# if defined(MAP_ANON) && !defined(MAP_ANONYMOUS)
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# define MAP_ANONYMOUS MAP_ANON /* don't use a file */
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# endif
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# include <stdio.h>
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# include <stdint.h>
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# include <unistd.h>
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# include <sys/uio.h>
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# include <sys/stat.h>
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# ifdef __PTH__
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# include <pth.h>
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# include <sys/wait.h>
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typedef int fd_t;
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typedef int socket_t;
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# define INVALID_SOCKET -1
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# define INVALID_HANDLE_VALUE -1
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# include <signal.h>
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# define pthread_t pth_t
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# define pthread_cond_t pth_cond_t
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# define pthread_mutex_t pth_mutex_t
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inline void pthread_exit(void* p) { pth_exit(p); };
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inline void pthread_kill(pthread_t tid, int sig) { pth_raise(tid, sig); };
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inline int pthread_mutex_init(pthread_mutex_t* mutex, void* x) { return pth_mutex_init(mutex) != 0; };
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inline void pthread_mutex_destroy(pthread_mutex_t* mutex) {};
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inline void pthread_mutex_lock(pthread_mutex_t* mutex) { pth_mutex_acquire(mutex, 0, NULL); };
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inline void pthread_mutex_unlock(pthread_mutex_t* mutex) { pth_mutex_release(mutex); };
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inline void pthread_cond_signal(pthread_cond_t* cond) { pth_cond_notify(cond, FALSE); };
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inline void pthread_cond_broadcast(pthread_cond_t* cond) { pth_cond_notify(cond, TRUE); };
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inline int pthread_sigmask(int how, const sigset_t* set, sigset_t* oset) { return pth_sigmask(how, set, oset);};
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inline void pthread_cond_wait(pthread_cond_t* cond, pthread_mutex_t* mutex) { pth_cond_await(cond, mutex, NULL); };
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# else
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# include <pthread.h>
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typedef int fd_t;
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typedef int socket_t;
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# define INVALID_SOCKET -1
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# define INVALID_HANDLE_VALUE -1
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# include <signal.h>
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# endif
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#endif
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#undef getchar
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#undef putchar
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#if !defined(_GNU_SOURCE) || defined(__OSX__) || defined(__NetBSD__) || defined(__UNIKERNEL__)
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typedef void (*sighandler_t)(int); /* Convenient typedef for signal handlers */
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#endif
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typedef unsigned long timeout_t; /* Typedef for millisecond timer values */
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#include <stdlib.h>
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#include <ctype.h>
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#include <time.h>
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#ifndef U_LINUX
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# define U_MAP_ANON MAP_ANONYMOUS
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# define MAP_HUGETLB 0
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# define U_MAP_ANON_HUGE 0
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# define U_MAP_ANON_HUGE_ADDR (void*)(0x0UL)
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#else
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# ifdef MAP_UNINITIALIZED /* (since Linux 2.6.33) */
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# define U_MAP_ANON (MAP_ANONYMOUS | MAP_UNINITIALIZED)
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# else
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# define U_MAP_ANON MAP_ANONYMOUS
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# endif
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# ifndef MAP_HUGETLB /* (since Linux 2.6.32) */
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# define MAP_HUGETLB 0x40000 /* arch specific */
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# endif
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# ifdef __ia64__ /* Only ia64 requires this */
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# define U_MAP_ANON_HUGE (MAP_HUGETLB | MAP_FIXED)
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# define U_MAP_ANON_HUGE_ADDR (void*)(0x8000000000000000UL)
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# else
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# define U_MAP_ANON_HUGE MAP_HUGETLB
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# define U_MAP_ANON_HUGE_ADDR (void*)(0x0UL)
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# endif
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#endif
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#endif
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