/* * kmp_wrapper_getpid.h -- getpid() declaration. */ //===----------------------------------------------------------------------===// // // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. // See https://llvm.org/LICENSE.txt for license information. // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception // //===----------------------------------------------------------------------===// #ifndef KMP_WRAPPER_GETPID_H #define KMP_WRAPPER_GETPID_H #if KMP_OS_UNIX // On Unix-like systems (Linux* OS and OS X*) getpid() is declared in standard // headers. #include #include #include #if KMP_OS_DARWIN // OS X #define __kmp_gettid() syscall(SYS_thread_selfid) #elif KMP_OS_FREEBSD #include #define __kmp_gettid() pthread_getthreadid_np() #elif KMP_OS_NETBSD #include #define __kmp_gettid() _lwp_self() #elif KMP_OS_OPENBSD #define __kmp_gettid() syscall(SYS_getthrid) #elif defined(SYS_gettid) // Hopefully other Unix systems define SYS_gettid syscall for getting os thread // id #define __kmp_gettid() syscall(SYS_gettid) #else #warning No gettid found, use getpid instead #define __kmp_gettid() getpid() #endif #elif KMP_OS_WINDOWS // On Windows* OS _getpid() returns int (not pid_t) and is declared in // "process.h". #include // Let us simulate Unix. #if KMP_MSVC_COMPAT typedef int pid_t; #endif #define getpid _getpid #define __kmp_gettid() GetCurrentThreadId() #else #error Unknown or unsupported OS. #endif /* TODO: All the libomp source code uses pid_t type for storing the result of getpid(), it is good. But often it printed as "%d", that is not good, because it ignores pid_t definition (may pid_t be longer that int?). It seems all pid prints should be rewritten as: printf( "%" KMP_UINT64_SPEC, (kmp_uint64) pid ); or (at least) as printf( "%" KMP_UINT32_SPEC, (kmp_uint32) pid ); (kmp_uint32, kmp_uint64, KMP_UINT64_SPEC, and KMP_UNIT32_SPEC are defined in "kmp_os.h".) */ #endif // KMP_WRAPPER_GETPID_H // end of file //