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authorGravatar Stephan Raue <mailinglists@openelec.tv>2009-09-21 18:35:40 -0700
committerGravatar Austin Foxley <austinf@cetoncorp.com>2009-09-21 18:38:24 -0700
commitcdeb75380c910f22b1c8d42defca5946fd594d75 (patch)
tree228b6761cd7cd3a6695e8a16db747752fa5496ef
parentcbeccd21e466e11f5d45ca663d8449feaf55445c (diff)
downloaduClibc-cdeb75380c910f22b1c8d42defca5946fd594d75.tar.gz
uClibc-cdeb75380c910f22b1c8d42defca5946fd594d75.tar.bz2
add timerfd syscall and header
Signed-off-by: Austin Foxley <austinf@cetoncorp.com> Signed-off-by: Stephan Raue <mailinglists@openelec.tv>
-rw-r--r--include/.gitignore1
-rw-r--r--libc/sysdeps/linux/common/Makefile.in2
-rw-r--r--libc/sysdeps/linux/common/sys/timerfd.h60
-rw-r--r--libc/sysdeps/linux/common/timerfd.c32
4 files changed, 94 insertions, 1 deletions
diff --git a/include/.gitignore b/include/.gitignore
index 16ea23e97..b41230418 100644
--- a/include/.gitignore
+++ b/include/.gitignore
@@ -28,6 +28,7 @@
/sys/regdef.h
/sys/sysmips.h
/sys/tas.h
+/sys/timerfd.h
/sys/ucontext.h
/sys/user.h
/sys/vm86.h
diff --git a/libc/sysdeps/linux/common/Makefile.in b/libc/sysdeps/linux/common/Makefile.in
index fbb57298e..788571e3f 100644
--- a/libc/sysdeps/linux/common/Makefile.in
+++ b/libc/sysdeps/linux/common/Makefile.in
@@ -31,7 +31,7 @@ CSRC := $(filter-out capget.c capset.c inotify.c ioperm.c iopl.c madvise.c \
remap_file_pages.c sched_getaffinity.c sched_setaffinity.c \
sendfile64.c sendfile.c setfsgid.c setfsuid.c setresuid.c \
splice.c vmsplice.c tee.c signalfd.c swapoff.c swapon.c \
- sync_file_range.c sysctl.c sysinfo.c uselib.c vhangup.c,$(CSRC))
+ sync_file_range.c sysctl.c sysinfo.c timerfd.c uselib.c vhangup.c,$(CSRC))
endif
ifneq ($(UCLIBC_BSD_SPECIFIC),y)
diff --git a/libc/sysdeps/linux/common/sys/timerfd.h b/libc/sysdeps/linux/common/sys/timerfd.h
new file mode 100644
index 000000000..c1bb06f5f
--- /dev/null
+++ b/libc/sysdeps/linux/common/sys/timerfd.h
@@ -0,0 +1,60 @@
+/* Copyright (C) 2008 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. */
+
+#ifndef _SYS_TIMERFD_H
+#define _SYS_TIMERFD_H 1
+
+#include <time.h>
+
+
+/* Bits to be set in the FLAGS parameter of `timerfd_create'. */
+enum
+ {
+ TFD_CLOEXEC = 02000000,
+#define TFD_CLOEXEC TFD_CLOEXEC
+ TFD_NONBLOCK = 04000
+#define TFD_NONBLOCK TFD_NONBLOCK
+ };
+
+
+/* Bits to be set in the FLAGS parameter of `timerfd_settime'. */
+enum
+ {
+ TFD_TIMER_ABSTIME = 1 << 0
+#define TFD_TIMER_ABSTIME TFD_TIMER_ABSTIME
+ };
+
+
+__BEGIN_DECLS
+
+/* Return file descriptor for new interval timer source. */
+extern int timerfd_create (clockid_t __clock_id, int __flags) __THROW;
+
+/* Set next expiration time of interval timer source UFD to UTMR. If
+ FLAGS has the TFD_TIMER_ABSTIME flag set the timeout value is
+ absolute. Optionally return the old expiration time in OTMR. */
+extern int timerfd_settime (int __ufd, int __flags,
+ __const struct itimerspec *__utmr,
+ struct itimerspec *__otmr) __THROW;
+
+/* Return the next expiration time of UFD. */
+extern int timerfd_gettime (int __ufd, struct itimerspec *__otmr) __THROW;
+
+__END_DECLS
+
+#endif /* sys/timerfd.h */
diff --git a/libc/sysdeps/linux/common/timerfd.c b/libc/sysdeps/linux/common/timerfd.c
new file mode 100644
index 000000000..233204480
--- /dev/null
+++ b/libc/sysdeps/linux/common/timerfd.c
@@ -0,0 +1,32 @@
+/* vi: set sw=4 ts=4: */
+/*
+ * timerfd_create() / timerfd_settime() / timerfd_gettime() for uClibc
+ *
+ * Copyright (C) 2009 Stephan Raue <stephan@openelec.tv>
+ *
+ * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.
+ */
+
+#include <sys/syscall.h>
+#include <sys/timerfd.h>
+
+/*
+ * timerfd_create()
+ */
+#ifdef __NR_timerfd_create
+_syscall2(int, timerfd_create, int, clockid, int, flags)
+#endif
+
+/*
+ * timerfd_settime()
+ */
+#ifdef __NR_timerfd_settime
+_syscall4(int,timerfd_settime, int, ufd, int, flags, const struct itimerspec *, utmr, struct itimerspec *, otmr)
+#endif
+
+/*
+ * timerfd_gettime()
+ */
+#ifdef __NR_timerfd_gettime
+_syscall2(int, timerfd_gettime, int, ufd, struct itimerspec *, otmr)
+#endif