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Diffstat (limited to 'nptl/sysdeps/unix/sysv/linux/wait.c')
-rw-r--r--nptl/sysdeps/unix/sysv/linux/wait.c52
1 files changed, 52 insertions, 0 deletions
diff --git a/nptl/sysdeps/unix/sysv/linux/wait.c b/nptl/sysdeps/unix/sysv/linux/wait.c
new file mode 100644
index 0000000000..5846075563
--- /dev/null
+++ b/nptl/sysdeps/unix/sysv/linux/wait.c
@@ -0,0 +1,52 @@
+/* Copyright (C) 1991, 1995, 1996, 1997, 2002 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+#include <sys/wait.h>
+#include <errno.h>
+#include <sys/resource.h>
+#include <stddef.h>
+#include <sysdep.h>
+#include <nptl/pthreadP.h>
+#include <tls.h>
+
+/* Wait for a child to die. When one does, put its status in *STAT_LOC
+ and return its process ID. For errors, return (pid_t) -1. */
+__pid_t
+__libc_wait (__WAIT_STATUS_DEFN stat_loc)
+{
+#ifndef NOT_IN_libc
+ if (__builtin_expect (THREAD_GETMEM (THREAD_SELF,
+ header.data.multiple_threads) == 0, 1))
+ return INLINE_SYSCALL (wait4, 4, WAIT_ANY, stat_loc, 0,
+ (struct rusage *) NULL);
+
+ int oldtype = LIBC_CANCEL_ASYNC ();
+#endif
+
+ int result = INLINE_SYSCALL (wait4, 4, WAIT_ANY, stat_loc, 0,
+ (struct rusage *) NULL);
+
+#ifndef NOT_IN_libc
+ LIBC_CANCEL_RESET (oldtype);
+#endif
+
+ return result;
+}
+
+weak_alias (__libc_wait, __wait)
+weak_alias (__libc_wait, wait)