aboutsummaryrefslogtreecommitdiff
path: root/nptl/sysdeps/pthread/gai_misc.h
diff options
context:
space:
mode:
Diffstat (limited to 'nptl/sysdeps/pthread/gai_misc.h')
-rw-r--r--nptl/sysdeps/pthread/gai_misc.h119
1 files changed, 0 insertions, 119 deletions
diff --git a/nptl/sysdeps/pthread/gai_misc.h b/nptl/sysdeps/pthread/gai_misc.h
deleted file mode 100644
index 9f6a73dad1..0000000000
--- a/nptl/sysdeps/pthread/gai_misc.h
+++ /dev/null
@@ -1,119 +0,0 @@
-/* Copyright (C) 2006 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. */
-
-/* We define a special synchronization primitive for AIO. POSIX
- conditional variables would be ideal but the pthread_cond_*wait
- operations do not return on EINTR. This is a requirement for
- correct aio_suspend and lio_listio implementations. */
-
-#include <assert.h>
-#include <signal.h>
-#include <pthreadP.h>
-#include <lowlevellock.h>
-
-#define DONT_NEED_GAI_MISC_COND 1
-
-#define GAI_MISC_NOTIFY(waitlist) \
- do { \
- if (*waitlist->counterp > 0 && --*waitlist->counterp == 0) \
- lll_futex_wake (waitlist->counterp, 1); \
- } while (0)
-
-#define GAI_MISC_WAIT(result, futex, timeout, cancel) \
- do { \
- volatile int *futexaddr = &futex; \
- int oldval = futex; \
- \
- if (oldval != 0) \
- { \
- pthread_mutex_unlock (&__gai_requests_mutex); \
- \
- int oldtype; \
- if (cancel) \
- oldtype = LIBC_CANCEL_ASYNC (); \
- \
- int status; \
- do \
- { \
- status = lll_futex_timed_wait (futexaddr, oldval, timeout); \
- if (status != -EWOULDBLOCK) \
- break; \
- \
- oldval = *futexaddr; \
- } \
- while (oldval != 0); \
- \
- if (cancel) \
- LIBC_CANCEL_RESET (oldtype); \
- \
- if (status == -EINTR) \
- result = EINTR; \
- else if (status == -ETIMEDOUT) \
- result = EAGAIN; \
- else \
- assert (status == 0 || status == -EWOULDBLOCK); \
- \
- pthread_mutex_lock (&__gai_requests_mutex); \
- } \
- } while (0)
-
-
-#define gai_start_notify_thread __gai_start_notify_thread
-#define gai_create_helper_thread __gai_create_helper_thread
-
-extern inline void
-__gai_start_notify_thread (void)
-{
- sigset_t ss;
- sigemptyset (&ss);
- INTERNAL_SYSCALL_DECL (err);
- INTERNAL_SYSCALL (rt_sigprocmask, err, 4, SIG_SETMASK, &ss, NULL, _NSIG / 8);
-}
-
-extern inline int
-__gai_create_helper_thread (pthread_t *threadp, void *(*tf) (void *),
- void *arg)
-{
- pthread_attr_t attr;
-
- /* Make sure the thread is created detached. */
- pthread_attr_init (&attr);
- pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED);
-
- /* The helper thread needs only very little resources. */
- (void) pthread_attr_setstacksize (&attr, PTHREAD_STACK_MIN);
-
- /* Block all signals in the helper thread. To do this thoroughly we
- temporarily have to block all signals here. */
- sigset_t ss;
- sigset_t oss;
- sigfillset (&ss);
- INTERNAL_SYSCALL_DECL (err);
- INTERNAL_SYSCALL (rt_sigprocmask, err, 4, SIG_SETMASK, &ss, &oss, _NSIG / 8);
-
- int ret = pthread_create (threadp, &attr, tf, arg);
-
- /* Restore the signal mask. */
- INTERNAL_SYSCALL (rt_sigprocmask, err, 4, SIG_SETMASK, &oss, NULL,
- _NSIG / 8);
-
- (void) pthread_attr_destroy (&attr);
- return ret;
-}
-
-#include_next <gai_misc.h>