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Diffstat (limited to 'nptl/sysdeps/pthread/gai_misc.h')
| -rw-r--r-- | nptl/sysdeps/pthread/gai_misc.h | 119 |
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> |