1 files changed, 59 insertions, 0 deletions
diff --git a/nptl/sysdeps/unix/sysv/linux/poll.c b/nptl/sysdeps/unix/sysv/linux/poll.c
new file mode 100644
index 0000000000..e44db71d61
--- /dev/null
+++ b/nptl/sysdeps/unix/sysv/linux/poll.c
@@ -0,0 +1,59 @@
+/* Poll system call, with emulation if it is not available.
+   Copyright (C) 1997,1998,1999,2000,2001,2002 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 <errno.h>
+#include <sys/poll.h>
+
+#include <sysdep.h>
+#include <sys/syscall.h>
+#include <bp-checks.h>
+#include <nptl/pthreadP.h>
+#include <tls.h>
+
+
+extern int __syscall_poll (struct pollfd *__unbounded fds,
+			   unsigned int nfds, int timeout);
+
+
+/* The real implementation.  */
+int
+__poll (fds, nfds, timeout)
+     struct pollfd *fds;
+     nfds_t nfds;
+     int timeout;
+{
+#ifndef NOT_IN_libc
+  if (__builtin_expect (THREAD_GETMEM (THREAD_SELF,
+				       header.data.multiple_threads) == 0, 1))
+    return INLINE_SYSCALL (poll, 3, CHECK_N (fds, nfds), nfds, timeout);
+
+  int oldtype = LIBC_CANCEL_ASYNC ();
+#endif
+
+  int result = INLINE_SYSCALL (poll, 3, CHECK_N (fds, nfds), nfds, timeout);
+
+#ifndef NOT_IN_libc
+  LIBC_CANCEL_RESET (oldtype);
+#endif
+
+  return result;
+}
+libc_hidden_def (__poll)
+weak_alias (__poll, poll)
+strong_alias (__poll, __libc_poll)