diff options
| -rw-r--r-- | libc/sysdeps/linux/common/sigqueue.c | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/libc/sysdeps/linux/common/sigqueue.c b/libc/sysdeps/linux/common/sigqueue.c new file mode 100644 index 000000000..01fdb6d39 --- /dev/null +++ b/libc/sysdeps/linux/common/sigqueue.c @@ -0,0 +1,52 @@ +/* Copyright (C) 1997, 1998, 2000, 2003, 2005 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 <signal.h> +#include <unistd.h> +#include <string.h> + +#include <sys/syscall.h> + +libc_hidden_proto(getpid) +libc_hidden_proto(getuid) + +#ifdef __NR_rt_sigqueueinfo + +# define __NR___libc_rt_sigqueueinfo __NR_rt_sigqueueinfo +static inline _syscall3(int, __libc_rt_sigqueueinfo, pid_t, pid, int, sig, void*, value); + +/* Return any pending signal or wait for one for the given time. */ +int __sigqueue (pid_t pid, int sig, const union sigval val) +{ + siginfo_t info; + + /* First, clear the siginfo_t structure, so that we don't pass our + stack content to other tasks. */ + memset (&info, 0, sizeof (siginfo_t)); + /* We must pass the information about the data in a siginfo_t value. */ + info.si_signo = sig; + info.si_code = SI_QUEUE; + info.si_pid = getpid (); + info.si_uid = getuid (); + info.si_value = val; + + return __libc_rt_sigqueueinfo(pid, sig, __ptrvalue (&info)); +} +weak_alias (__sigqueue, sigqueue) +#endif |