| yuezonghe | 824eb0c | 2024-06-27 02:32:26 -0700 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright (C) 2006 Steven J. Hill <sjhill@realitydiluted.com> |
| 3 | * Copyright (C) 2000-2006 Erik Andersen <andersen@uclibc.org> |
| 4 | * |
| 5 | * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball. |
| 6 | */ |
| 7 | #include <stdlib.h> |
| 8 | #include <syscall.h> |
| 9 | #include <sys/types.h> |
| 10 | #include <sys/wait.h> |
| 11 | #include <sys/resource.h> |
| 12 | |
| 13 | extern __typeof(wait) __libc_wait; |
| 14 | /* Wait for a child to die. When one does, put its status in *STAT_LOC |
| 15 | * and return its process ID. For errors, return (pid_t) -1. */ |
| 16 | #ifdef __UCLIBC_HAS_THREADS_NATIVE__ |
| 17 | #include <errno.h> |
| 18 | #include <sysdep-cancel.h> |
| 19 | |
| 20 | pid_t attribute_hidden |
| 21 | __libc_wait (__WAIT_STATUS_DEFN stat_loc) |
| 22 | { |
| 23 | if (SINGLE_THREAD_P) |
| 24 | return INLINE_SYSCALL (wait4, 4, WAIT_ANY, stat_loc, 0, |
| 25 | (struct rusage *) NULL); |
| 26 | |
| 27 | int oldtype = LIBC_CANCEL_ASYNC (); |
| 28 | |
| 29 | pid_t result = INLINE_SYSCALL (wait4, 4, WAIT_ANY, stat_loc, 0, |
| 30 | (struct rusage *) NULL); |
| 31 | |
| 32 | LIBC_CANCEL_RESET (oldtype); |
| 33 | |
| 34 | return result; |
| 35 | } |
| 36 | #else |
| 37 | /* Wait for a child to die. When one does, put its status in *STAT_LOC |
| 38 | * and return its process ID. For errors, return (pid_t) -1. */ |
| 39 | __pid_t __libc_wait (__WAIT_STATUS_DEFN stat_loc) |
| 40 | { |
| 41 | return wait4 (WAIT_ANY, stat_loc, 0, (struct rusage *) NULL); |
| 42 | } |
| 43 | #endif |
| 44 | weak_alias(__libc_wait,wait) |