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authorAustin Foxley <austinf@cetoncorp.com>2010-02-17 16:52:15 -0800
committerAustin Foxley <austinf@cetoncorp.com>2010-02-17 16:55:05 -0800
commit44f3864ffcf205930a0cf7e553ab91f2cb01d02d (patch)
tree59c592810e0ece55af323938d3a5887e4b66206d /libpthread/nptl/sysdeps/pthread
parentf09e8e4ba639d236322e10130fbc19845f61d59a (diff)
move pthread_barrier_{init,destroy} to sysdeps/pthread
for archs that implement their own like sparc and x86_64 Signed-off-by: Austin Foxley <austinf@cetoncorp.com>
Diffstat (limited to 'libpthread/nptl/sysdeps/pthread')
-rw-r--r--libpthread/nptl/sysdeps/pthread/Makefile.in5
-rw-r--r--libpthread/nptl/sysdeps/pthread/pthread_barrier_destroy.c44
-rw-r--r--libpthread/nptl/sysdeps/pthread/pthread_barrier_init.c71
3 files changed, 119 insertions, 1 deletions
diff --git a/libpthread/nptl/sysdeps/pthread/Makefile.in b/libpthread/nptl/sysdeps/pthread/Makefile.in
index 303b04f3f..e417e6ce6 100644
--- a/libpthread/nptl/sysdeps/pthread/Makefile.in
+++ b/libpthread/nptl/sysdeps/pthread/Makefile.in
@@ -10,7 +10,8 @@
# pt-longjmp.c in libc and libpthread. For uClibc, they are
# in libc only.
#
-libpthread_CSRC = pthread_barrier_wait.c pthread_cond_broadcast.c \
+libpthread_CSRC = pthread_barrier_init.c pthread_barrier_destroy.c \
+ pthread_barrier_wait.c pthread_cond_broadcast.c \
pthread_cond_signal.c pthread_cond_timedwait.c \
pthread_cond_wait.c pthread_rwlock_rdlock.c \
pthread_rwlock_timedrdlock.c \
@@ -63,6 +64,8 @@ endif
CFLAGS-pt-common = -DNOT_IN_libc=1 $(SSP_ALL_CFLAGS)
+CFLAGS-pthread_barrier_init.c = $(CFLAGS-pt-common) -DIS_IN_libpthread=1
+CFLAGS-pthread_barrier_destroy.c = $(CFLAGS-pt-common) -DIS_IN_libpthread=1
CFLAGS-pthread_barrier_wait.c = -D_GNU_SOURCE $(CFLAGS-pt-common) \
-DIS_IN_libpthread=1
CFLAGS-pthread_cond_broadcast.c = $(CFLAGS-pt-common) -DIS_IN_libpthread=1
diff --git a/libpthread/nptl/sysdeps/pthread/pthread_barrier_destroy.c b/libpthread/nptl/sysdeps/pthread/pthread_barrier_destroy.c
new file mode 100644
index 000000000..2afe5b3c5
--- /dev/null
+++ b/libpthread/nptl/sysdeps/pthread/pthread_barrier_destroy.c
@@ -0,0 +1,44 @@
+/* Copyright (C) 2002, 2007 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
+
+ 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 "pthreadP.h"
+#include <lowlevellock.h>
+
+
+int
+pthread_barrier_destroy (
+ pthread_barrier_t *barrier)
+{
+ struct pthread_barrier *ibarrier;
+ int result = EBUSY;
+
+ ibarrier = (struct pthread_barrier *) barrier;
+
+ lll_lock (ibarrier->lock, ibarrier->private ^ FUTEX_PRIVATE_FLAG);
+
+ if (__builtin_expect (ibarrier->left == ibarrier->init_count, 1))
+ /* The barrier is not used anymore. */
+ result = 0;
+ else
+ /* Still used, return with an error. */
+ lll_unlock (ibarrier->lock, ibarrier->private ^ FUTEX_PRIVATE_FLAG);
+
+ return result;
+}
diff --git a/libpthread/nptl/sysdeps/pthread/pthread_barrier_init.c b/libpthread/nptl/sysdeps/pthread/pthread_barrier_init.c
new file mode 100644
index 000000000..f0396f929
--- /dev/null
+++ b/libpthread/nptl/sysdeps/pthread/pthread_barrier_init.c
@@ -0,0 +1,71 @@
+/* Copyright (C) 2002, 2007 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
+
+ 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 "pthreadP.h"
+#include <lowlevellock.h>
+#include <bits/kernel-features.h>
+
+
+static const struct pthread_barrierattr default_attr =
+ {
+ .pshared = PTHREAD_PROCESS_PRIVATE
+ };
+
+
+int
+pthread_barrier_init (
+ pthread_barrier_t *barrier,
+ const pthread_barrierattr_t *attr,
+ unsigned int count)
+{
+ struct pthread_barrier *ibarrier;
+
+ if (__builtin_expect (count == 0, 0))
+ return EINVAL;
+
+ const struct pthread_barrierattr *iattr
+ = (attr != NULL
+ ? iattr = (struct pthread_barrierattr *) attr
+ : &default_attr);
+
+ if (iattr->pshared != PTHREAD_PROCESS_PRIVATE
+ && __builtin_expect (iattr->pshared != PTHREAD_PROCESS_SHARED, 0))
+ /* Invalid attribute. */
+ return EINVAL;
+
+ ibarrier = (struct pthread_barrier *) barrier;
+
+ /* Initialize the individual fields. */
+ ibarrier->lock = LLL_LOCK_INITIALIZER;
+ ibarrier->left = count;
+ ibarrier->init_count = count;
+ ibarrier->curr_event = 0;
+
+#ifdef __ASSUME_PRIVATE_FUTEX
+ ibarrier->private = (iattr->pshared != PTHREAD_PROCESS_PRIVATE
+ ? 0 : FUTEX_PRIVATE_FLAG);
+#else
+ ibarrier->private = (iattr->pshared != PTHREAD_PROCESS_PRIVATE
+ ? 0 : THREAD_GETMEM (THREAD_SELF,
+ header.private_futex));
+#endif
+
+ return 0;
+}