1/* 2 * kmp_wrapper_getpid.h -- getpid() declaration. 3 */ 4 5//===----------------------------------------------------------------------===// 6// 7// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 8// See https://llvm.org/LICENSE.txt for license information. 9// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 10// 11//===----------------------------------------------------------------------===// 12 13#ifndef KMP_WRAPPER_GETPID_H 14#define KMP_WRAPPER_GETPID_H 15 16#if KMP_OS_UNIX 17 18// On Unix-like systems (Linux* OS and OS X*) getpid() is declared in standard 19// headers. 20#if !defined(KMP_OS_AIX) 21#include <sys/syscall.h> 22#endif 23#include <sys/types.h> 24#include <unistd.h> 25#if KMP_OS_DARWIN 26// OS X 27#define __kmp_gettid() pthread_mach_thread_np(pthread_self()) 28#elif KMP_OS_FREEBSD || KMP_OS_DRAGONFLY 29#include <pthread_np.h> 30#define __kmp_gettid() pthread_getthreadid_np() 31#elif KMP_OS_NETBSD 32#include <lwp.h> 33#define __kmp_gettid() _lwp_self() 34#elif KMP_OS_OPENBSD 35#define __kmp_gettid() getthrid() 36#elif KMP_OS_AIX 37#include <pthread.h> 38#define __kmp_gettid() pthread_self() 39#elif defined(SYS_gettid) 40// Hopefully other Unix systems define SYS_gettid syscall for getting os thread 41// id 42#define __kmp_gettid() syscall(SYS_gettid) 43#else 44#warning No gettid found, use getpid instead 45#define __kmp_gettid() getpid() 46#endif 47 48#elif KMP_OS_WINDOWS 49 50// On Windows* OS _getpid() returns int (not pid_t) and is declared in 51// "process.h". 52#include <process.h> 53// Let us simulate Unix. 54#if KMP_MSVC_COMPAT 55typedef int pid_t; 56#endif 57#define getpid _getpid 58#define __kmp_gettid() GetCurrentThreadId() 59 60#else 61 62#error Unknown or unsupported OS. 63 64#endif 65 66/* TODO: All the libomp source code uses pid_t type for storing the result of 67 getpid(), it is good. But often it printed as "%d", that is not good, because 68 it ignores pid_t definition (may pid_t be longer that int?). It seems all pid 69 prints should be rewritten as: 70 71 printf( "%" KMP_UINT64_SPEC, (kmp_uint64) pid ); 72 73 or (at least) as 74 75 printf( "%" KMP_UINT32_SPEC, (kmp_uint32) pid ); 76 77 (kmp_uint32, kmp_uint64, KMP_UINT64_SPEC, and KMP_UNIT32_SPEC are defined in 78 "kmp_os.h".) */ 79 80#endif // KMP_WRAPPER_GETPID_H 81 82// end of file // 83