79b103ee1ca7866ee11e8b503fd2a52d6de91fda/cpp/impl_2codegen_2port__platform_8h_source.html

/*

 *

 * Copyright 2015 gRPC authors.

 *

 * Licensed under the Apache License, Version 2.0 (the "License");

 * you may not use this file except in compliance with the License.

 * You may obtain a copy of the License at

 *

 *     http://www.apache.org/licenses/LICENSE-2.0

 *

 * Unless required by applicable law or agreed to in writing, software

 * distributed under the License is distributed on an "AS IS" BASIS,

 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

 * See the License for the specific language governing permissions and

 * limitations under the License.

 *

 */


#ifndef GRPC_IMPL_CODEGEN_PORT_PLATFORM_H

#define GRPC_IMPL_CODEGEN_PORT_PLATFORM_H


/*

 * Define GPR_BACKWARDS_COMPATIBILITY_MODE to try harder to be ABI

 * compatible with older platforms (currently only on Linux)

 * Causes:

 *  - some libc calls to be gotten via dlsym

 *  - some syscalls to be made directly

 */


/* Get windows.h included everywhere (we need it) */

#if defined(_WIN64) || defined(WIN64) || defined(_WIN32) || defined(WIN32)

#ifndef WIN32_LEAN_AND_MEAN

#define GRPC_WIN32_LEAN_AND_MEAN_WAS_NOT_DEFINED

#define WIN32_LEAN_AND_MEAN

#endif /* WIN32_LEAN_AND_MEAN */


#ifndef NOMINMAX

#define GRPC_NOMINMX_WAS_NOT_DEFINED

#define NOMINMAX

#endif /* NOMINMAX */


#ifndef _WIN32_WINNT

#error \

    "Please compile grpc with _WIN32_WINNT of at least 0x600 (aka Windows Vista)"

#else /* !defined(_WIN32_WINNT) */

#if (_WIN32_WINNT < 0x0600)

#error \

    "Please compile grpc with _WIN32_WINNT of at least 0x600 (aka Windows Vista)"

#endif /* _WIN32_WINNT < 0x0600 */

#endif /* defined(_WIN32_WINNT) */


#include <windows.h>


#ifdef GRPC_WIN32_LEAN_AND_MEAN_WAS_NOT_DEFINED

#undef GRPC_WIN32_LEAN_AND_MEAN_WAS_NOT_DEFINED

#undef WIN32_LEAN_AND_MEAN

#endif /* GRPC_WIN32_LEAN_AND_MEAN_WAS_NOT_DEFINED */


#ifdef GRPC_NOMINMAX_WAS_NOT_DEFINED

#undef GRPC_NOMINMAX_WAS_NOT_DEFINED

#undef NOMINMAX

#endif /* GRPC_WIN32_LEAN_AND_MEAN_WAS_NOT_DEFINED */

#endif /* defined(_WIN64) || defined(WIN64) || defined(_WIN32) || \

          defined(WIN32) */


/* Override this file with one for your platform if you need to redefine

   things.  */


#if !defined(GPR_NO_AUTODETECT_PLATFORM)

#if defined(_WIN64) || defined(WIN64) || defined(_WIN32) || defined(WIN32)

#if defined(_WIN64) || defined(WIN64)

#define GPR_ARCH_64 1

#else

#define GPR_ARCH_32 1

#endif

#define GPR_PLATFORM_STRING "windows"

#define GPR_WINDOWS 1

#define GPR_WINDOWS_SUBPROCESS 1

#define GPR_WINDOWS_ENV

#ifdef __MSYS__

#define GPR_GETPID_IN_UNISTD_H 1

#define GPR_MSYS_TMPFILE

#define GPR_POSIX_LOG

#define GPR_POSIX_STRING

#define GPR_POSIX_TIME

#else

#define GPR_GETPID_IN_PROCESS_H 1

#define GPR_WINDOWS_TMPFILE

#define GPR_WINDOWS_LOG

#define GPR_WINDOWS_CRASH_HANDLER 1

#define GPR_WINDOWS_STRING

#define GPR_WINDOWS_TIME

#endif

#ifdef __GNUC__

#define GPR_GCC_ATOMIC 1

#define GPR_GCC_TLS 1

#else

#define GPR_WINDOWS_ATOMIC 1

#define GPR_MSVC_TLS 1

#endif

#elif defined(GPR_MANYLINUX1)

// TODO(atash): manylinux1 is just another __linux__ but with ancient

// libraries; it should be integrated with the `__linux__` definitions below.

#define GPR_PLATFORM_STRING "manylinux"

#define GPR_POSIX_CRASH_HANDLER 1

#define GPR_CPU_POSIX 1

#define GPR_GCC_ATOMIC 1

#define GPR_GCC_TLS 1

#define GPR_LINUX 1

#define GPR_LINUX_LOG 1

#define GPR_SUPPORT_CHANNELS_FROM_FD 1

#define GPR_LINUX_ENV 1

#define GPR_POSIX_TMPFILE 1

#define GPR_POSIX_STRING 1

#define GPR_POSIX_SUBPROCESS 1

#define GPR_POSIX_SYNC 1

#define GPR_POSIX_TIME 1

#define GPR_GETPID_IN_UNISTD_H 1

#ifdef _LP64

#define GPR_ARCH_64 1

#else /* _LP64 */

#define GPR_ARCH_32 1

#endif /* _LP64 */

#elif defined(ANDROID) || defined(__ANDROID__)

#define GPR_PLATFORM_STRING "android"

#define GPR_ANDROID 1

#ifdef _LP64

#define GPR_ARCH_64 1

#else /* _LP64 */

#define GPR_ARCH_32 1

#endif /* _LP64 */

#define GPR_CPU_POSIX 1

#define GPR_GCC_SYNC 1

#define GPR_GCC_TLS 1

#define GPR_POSIX_ENV 1

#define GPR_POSIX_TMPFILE 1

#define GPR_ANDROID_LOG 1

#define GPR_POSIX_STRING 1

#define GPR_POSIX_SUBPROCESS 1

#define GPR_POSIX_SYNC 1

#define GPR_POSIX_TIME 1

#define GPR_GETPID_IN_UNISTD_H 1

#define GPR_SUPPORT_CHANNELS_FROM_FD 1

#elif defined(__linux__)

#define GPR_PLATFORM_STRING "linux"

#ifndef _BSD_SOURCE

#define _BSD_SOURCE

#endif

#ifndef _DEFAULT_SOURCE

#define _DEFAULT_SOURCE

#endif

#ifndef _GNU_SOURCE

#define _GNU_SOURCE

#endif

#include <features.h>

#define GPR_CPU_LINUX 1

#define GPR_GCC_ATOMIC 1

#define GPR_GCC_TLS 1

#define GPR_LINUX 1

#define GPR_LINUX_LOG

#define GPR_SUPPORT_CHANNELS_FROM_FD 1

#define GPR_LINUX_ENV 1

#define GPR_POSIX_TMPFILE 1

#define GPR_POSIX_STRING 1

#define GPR_POSIX_SUBPROCESS 1

#define GPR_POSIX_SYNC 1

#define GPR_POSIX_TIME 1

#define GPR_GETPID_IN_UNISTD_H 1

#ifdef _LP64

#define GPR_ARCH_64 1

#else /* _LP64 */

#define GPR_ARCH_32 1

#endif /* _LP64 */

#ifdef __GLIBC__

#define GPR_POSIX_CRASH_HANDLER 1

#else /* musl libc */

#define GPR_MUSL_LIBC_COMPAT 1

#endif

#elif defined(__APPLE__)

#include <Availability.h>

#include <TargetConditionals.h>

#ifndef _BSD_SOURCE

#define _BSD_SOURCE

#endif

#if TARGET_OS_IPHONE

#define GPR_PLATFORM_STRING "ios"

#define GPR_CPU_IPHONE 1

#define GPR_PTHREAD_TLS 1

#else /* TARGET_OS_IPHONE */

#define GPR_PLATFORM_STRING "osx"

#ifdef __MAC_OS_X_VERSION_MIN_REQUIRED

#if __MAC_OS_X_VERSION_MIN_REQUIRED < __MAC_10_7

#define GPR_CPU_IPHONE 1

#define GPR_PTHREAD_TLS 1

#else /* __MAC_OS_X_VERSION_MIN_REQUIRED < __MAC_10_7 */

#define GPR_CPU_POSIX 1

#define GPR_GCC_TLS 1

#endif

#else /* __MAC_OS_X_VERSION_MIN_REQUIRED */

#define GPR_CPU_POSIX 1

#define GPR_GCC_TLS 1

#endif

#define GPR_POSIX_CRASH_HANDLER 1

#endif

#define GPR_APPLE 1

#define GPR_GCC_ATOMIC 1

#define GPR_POSIX_LOG 1

#define GPR_POSIX_ENV 1

#define GPR_POSIX_TMPFILE 1

#define GPR_POSIX_STRING 1

#define GPR_POSIX_SUBPROCESS 1

#define GPR_POSIX_SYNC 1

#define GPR_POSIX_TIME 1

#define GPR_GETPID_IN_UNISTD_H 1

#define GPR_SUPPORT_CHANNELS_FROM_FD 1

#ifdef _LP64

#define GPR_ARCH_64 1

#else /* _LP64 */

#define GPR_ARCH_32 1

#endif /* _LP64 */

#elif defined(__FreeBSD__)

#define GPR_PLATFORM_STRING "freebsd"

#ifndef _BSD_SOURCE

#define _BSD_SOURCE

#endif

#define GPR_FREEBSD 1

#define GPR_CPU_POSIX 1

#define GPR_GCC_ATOMIC 1

#define GPR_GCC_TLS 1

#define GPR_POSIX_LOG 1

#define GPR_POSIX_ENV 1

#define GPR_POSIX_TMPFILE 1

#define GPR_POSIX_STRING 1

#define GPR_POSIX_SUBPROCESS 1

#define GPR_POSIX_SYNC 1

#define GPR_POSIX_TIME 1

#define GPR_GETPID_IN_UNISTD_H 1

#define GPR_SUPPORT_CHANNELS_FROM_FD 1

#ifdef _LP64

#define GPR_ARCH_64 1

#else /* _LP64 */

#define GPR_ARCH_32 1

#endif /* _LP64 */

#elif defined(__OpenBSD__)

#define GPR_PLATFORM_STRING "openbsd"

#ifndef _BSD_SOURCE

#define _BSD_SOURCE

#endif

#define GPR_OPENBSD 1

#define GPR_CPU_POSIX 1

#define GPR_GCC_ATOMIC 1

#define GPR_GCC_TLS 1

#define GPR_POSIX_LOG 1

#define GPR_POSIX_ENV 1

#define GPR_POSIX_TMPFILE 1

#define GPR_POSIX_STRING 1

#define GPR_POSIX_SUBPROCESS 1

#define GPR_POSIX_SYNC 1

#define GPR_POSIX_TIME 1

#define GPR_GETPID_IN_UNISTD_H 1

#define GPR_SUPPORT_CHANNELS_FROM_FD 1

#ifdef _LP64

#define GPR_ARCH_64 1

#else /* _LP64 */

#define GPR_ARCH_32 1

#endif /* _LP64 */

#elif defined(__native_client__)

#define GPR_PLATFORM_STRING "nacl"

#ifndef _BSD_SOURCE

#define _BSD_SOURCE

#endif

#ifndef _DEFAULT_SOURCE

#define _DEFAULT_SOURCE

#endif

#ifndef _GNU_SOURCE

#define _GNU_SOURCE

#endif

#define GPR_NACL 1

#define GPR_CPU_POSIX 1

#define GPR_GCC_ATOMIC 1

#define GPR_GCC_TLS 1

#define GPR_POSIX_LOG 1

#define GPR_POSIX_ENV 1

#define GPR_POSIX_TMPFILE 1

#define GPR_POSIX_STRING 1

#define GPR_POSIX_SUBPROCESS 1

#define GPR_POSIX_SYNC 1

#define GPR_POSIX_TIME 1

#define GPR_GETPID_IN_UNISTD_H 1

#ifdef _LP64

#define GPR_ARCH_64 1

#else /* _LP64 */

#define GPR_ARCH_32 1

#endif /* _LP64 */

#else

#error "Could not auto-detect platform"

#endif

#endif /* GPR_NO_AUTODETECT_PLATFORM */


/*

 *  There are platforms for which TLS should not be used even though the

 * compiler makes it seem like it's supported (Android NDK < r12b for example).

 * This is primarily because of linker problems and toolchain misconfiguration:

 * TLS isn't supported until NDK r12b per

 * https://developer.android.com/ndk/downloads/revision_history.html

 * Since NDK r16, `__NDK_MAJOR__` and `__NDK_MINOR__` are defined in

 * <android/ndk-version.h>. For NDK < r16, users should define these macros,

 * e.g. `-D__NDK_MAJOR__=11 -D__NKD_MINOR__=0` for NDK r11. */

#if defined(__ANDROID__) && defined(__clang__) && defined(GPR_GCC_TLS)

#if __has_include(<android/ndk-version.h>)

#include <android/ndk-version.h>

#endif /* __has_include(<android/ndk-version.h>) */

#if defined(__ANDROID__) && defined(__clang__) && defined(__NDK_MAJOR__) && \

    defined(__NDK_MINOR__) &&                                               \

    ((__NDK_MAJOR__ < 12) || ((__NDK_MAJOR__ == 12) && (__NDK_MINOR__ < 1)))

#undef GPR_GCC_TLS

#define GPR_PTHREAD_TLS 1

#endif

#endif /*defined(__ANDROID__) && defined(__clang__) && defined(GPR_GCC_TLS) */


#if defined(__has_include)

#if __has_include(<atomic>)

#define GRPC_HAS_CXX11_ATOMIC

#endif /* __has_include(<atomic>) */

#endif /* defined(__has_include) */


#ifndef GPR_PLATFORM_STRING

#warning "GPR_PLATFORM_STRING not auto-detected"

#define GPR_PLATFORM_STRING "unknown"

#endif


#ifdef GPR_GCOV

#undef GPR_FORBID_UNREACHABLE_CODE

#define GPR_FORBID_UNREACHABLE_CODE 1

#endif


#ifdef _MSC_VER

#if _MSC_VER < 1700

typedef __int8 int8_t;

typedef __int16 int16_t;

typedef __int32 int32_t;

typedef __int64 int64_t;

typedef unsigned __int8 uint8_t;

typedef unsigned __int16 uint16_t;

typedef unsigned __int32 uint32_t;

typedef unsigned __int64 uint64_t;

#else

#include <stdint.h>

#endif /* _MSC_VER < 1700 */

#else

#include <stdint.h>

#endif /* _MSC_VER */


/* Cache line alignment */

#ifndef GPR_CACHELINE_SIZE_LOG

#if defined(__i386__) || defined(__x86_64__)

#define GPR_CACHELINE_SIZE_LOG 6

#endif

#ifndef GPR_CACHELINE_SIZE_LOG

/* A reasonable default guess. Note that overestimates tend to waste more

   space, while underestimates tend to waste more time. */

#define GPR_CACHELINE_SIZE_LOG 6

#endif /* GPR_CACHELINE_SIZE_LOG */

#endif /* GPR_CACHELINE_SIZE_LOG */


#define GPR_CACHELINE_SIZE (1 << GPR_CACHELINE_SIZE_LOG)


/* scrub GCC_ATOMIC if it's not available on this compiler */

#if defined(GPR_GCC_ATOMIC) && !defined(__ATOMIC_RELAXED)

#undef GPR_GCC_ATOMIC

#define GPR_GCC_SYNC 1

#endif


/* Validate platform combinations */

#if defined(GPR_GCC_ATOMIC) + defined(GPR_GCC_SYNC) + \

        defined(GPR_WINDOWS_ATOMIC) !=                \

    1

#error Must define exactly one of GPR_GCC_ATOMIC, GPR_GCC_SYNC, GPR_WINDOWS_ATOMIC

#endif


#if defined(GPR_ARCH_32) + defined(GPR_ARCH_64) != 1

#error Must define exactly one of GPR_ARCH_32, GPR_ARCH_64

#endif


#if defined(GPR_CPU_LINUX) + defined(GPR_CPU_POSIX) + defined(GPR_WINDOWS) + \

        defined(GPR_CPU_IPHONE) + defined(GPR_CPU_CUSTOM) !=                 \

    1

#error Must define exactly one of GPR_CPU_LINUX, GPR_CPU_POSIX, GPR_WINDOWS, GPR_CPU_IPHONE, GPR_CPU_CUSTOM

#endif


#if defined(GPR_MSVC_TLS) + defined(GPR_GCC_TLS) + defined(GPR_PTHREAD_TLS) + \

        defined(GPR_CUSTOM_TLS) !=                                            \

    1

#error Must define exactly one of GPR_MSVC_TLS, GPR_GCC_TLS, GPR_PTHREAD_TLS, GPR_CUSTOM_TLS

#endif


/* maximum alignment needed for any type on this platform, rounded up to a

   power of two */

#define GPR_MAX_ALIGNMENT 16


#ifndef GRPC_ARES

#ifdef GPR_WINDOWS

#define GRPC_ARES 0

#else

#define GRPC_ARES 1

#endif

#endif


#ifndef GRPC_MUST_USE_RESULT

#if defined(__GNUC__) && !defined(__MINGW32__)

#define GRPC_MUST_USE_RESULT __attribute__((warn_unused_result))

#define GPR_ALIGN_STRUCT(n) __attribute__((aligned(n)))

#else

#define GRPC_MUST_USE_RESULT

#define GPR_ALIGN_STRUCT(n)

#endif

#endif


#ifndef GPR_PRINT_FORMAT_CHECK

#ifdef __GNUC__

#define GPR_PRINT_FORMAT_CHECK(FORMAT_STR, ARGS) \

  __attribute__((format(printf, FORMAT_STR, ARGS)))

#else

#define GPR_PRINT_FORMAT_CHECK(FORMAT_STR, ARGS)

#endif

#endif /* GPR_PRINT_FORMAT_CHECK */


#if GPR_FORBID_UNREACHABLE_CODE

#define GPR_UNREACHABLE_CODE(STATEMENT)

#else

#define GPR_UNREACHABLE_CODE(STATEMENT)             \

  do {                                              \

    gpr_log(GPR_ERROR, "Should never reach here."); \

    abort();                                        \

    STATEMENT;                                      \

  } while (0)

#endif /* GPR_FORBID_UNREACHABLE_CODE */


#ifndef GPRAPI

#define GPRAPI

#endif


#ifndef GRPCAPI

#define GRPCAPI GPRAPI

#endif


#ifndef CENSUSAPI

#define CENSUSAPI GRPCAPI

#endif


#ifndef GPR_ATTRIBUTE_NO_TSAN /* (1) */

#if defined(__has_feature)

#if __has_feature(thread_sanitizer)

#define GPR_ATTRIBUTE_NO_TSAN __attribute__((no_sanitize("thread")))

#endif                        /* __has_feature(thread_sanitizer) */

#endif                        /* defined(__has_feature) */

#ifndef GPR_ATTRIBUTE_NO_TSAN /* (2) */

#define GPR_ATTRIBUTE_NO_TSAN

#endif /* GPR_ATTRIBUTE_NO_TSAN (2) */

#endif /* GPR_ATTRIBUTE_NO_TSAN (1) */


#ifndef __STDC_FORMAT_MACROS

#define __STDC_FORMAT_MACROS

#endif


#endif /* GRPC_IMPL_CODEGEN_PORT_PLATFORM_H */