diff options
Diffstat (limited to 'sysdeps/pthread/timer_create.c')
| -rw-r--r-- | sysdeps/pthread/timer_create.c | 166 |
1 files changed, 0 insertions, 166 deletions
diff --git a/sysdeps/pthread/timer_create.c b/sysdeps/pthread/timer_create.c deleted file mode 100644 index 2808f5b32b..0000000000 --- a/sysdeps/pthread/timer_create.c +++ /dev/null @@ -1,166 +0,0 @@ -/* Copyright (C) 2000-2021 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Kaz Kylheku <kaz@ashi.footprints.net>. - - 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; see the file COPYING.LIB. If - not, see <https://www.gnu.org/licenses/>. */ - -#include <errno.h> -#include <signal.h> -#include <pthread.h> -#include <time.h> -#include <unistd.h> - -#include "posix-timer.h" - - -/* Create new per-process timer using CLOCK. */ -int -timer_create (clockid_t clock_id, struct sigevent *evp, timer_t *timerid) -{ - int retval = -1; - struct timer_node *newtimer = NULL; - struct thread_node *thread = NULL; - - if (0 -#if defined _POSIX_CPUTIME && _POSIX_CPUTIME >= 0 - || clock_id == CLOCK_PROCESS_CPUTIME_ID -#endif -#if defined _POSIX_THREAD_CPUTIME && _POSIX_THREAD_CPUTIME >= 0 - || clock_id == CLOCK_THREAD_CPUTIME_ID -#endif - ) - { - /* We don't allow timers for CPU clocks. At least not in the - moment. */ - __set_errno (ENOTSUP); - return -1; - } - - if (clock_id != CLOCK_REALTIME) - { - __set_errno (EINVAL); - return -1; - } - - pthread_once (&__timer_init_once_control, __timer_init_once); - - if (__timer_init_failed) - { - __set_errno (ENOMEM); - return -1; - } - - pthread_mutex_lock (&__timer_mutex); - - newtimer = __timer_alloc (); - if (__glibc_unlikely (newtimer == NULL)) - { - __set_errno (EAGAIN); - goto unlock_bail; - } - - if (evp != NULL) - newtimer->event = *evp; - else - { - newtimer->event.sigev_notify = SIGEV_SIGNAL; - newtimer->event.sigev_signo = SIGALRM; - newtimer->event.sigev_value.sival_ptr = newtimer; - newtimer->event.sigev_notify_function = 0; - } - - newtimer->event.sigev_notify_attributes = &newtimer->attr; - newtimer->creator_pid = getpid (); - - switch (__builtin_expect (newtimer->event.sigev_notify, SIGEV_SIGNAL)) - { - case SIGEV_NONE: - case SIGEV_SIGNAL: - /* We have a global thread for delivering timed signals. - If it is not running, try to start it up. */ - thread = &__timer_signal_thread_rclk; - if (! thread->exists) - { - if (__builtin_expect (__timer_thread_start (thread), - 1) < 0) - { - __set_errno (EAGAIN); - goto unlock_bail; - } - } - break; - - case SIGEV_THREAD: - /* Copy over thread attributes or set up default ones. */ - if (evp->sigev_notify_attributes) - newtimer->attr = *(pthread_attr_t *) evp->sigev_notify_attributes; - else - pthread_attr_init (&newtimer->attr); - - /* Ensure thread attributes call for deatched thread. */ - pthread_attr_setdetachstate (&newtimer->attr, PTHREAD_CREATE_DETACHED); - - /* Try to find existing thread having the right attributes. */ - thread = __timer_thread_find_matching (&newtimer->attr, clock_id); - - /* If no existing thread has these attributes, try to allocate one. */ - if (thread == NULL) - thread = __timer_thread_alloc (&newtimer->attr, clock_id); - - /* Out of luck; no threads are available. */ - if (__glibc_unlikely (thread == NULL)) - { - __set_errno (EAGAIN); - goto unlock_bail; - } - - /* If the thread is not running already, try to start it. */ - if (! thread->exists - && __builtin_expect (! __timer_thread_start (thread), 0)) - { - __set_errno (EAGAIN); - goto unlock_bail; - } - break; - - default: - __set_errno (EINVAL); - goto unlock_bail; - } - - newtimer->clock = clock_id; - newtimer->abstime = 0; - newtimer->armed = 0; - newtimer->thread = thread; - - *timerid = timer_ptr2id (newtimer); - retval = 0; - - if (__builtin_expect (retval, 0) == -1) - { - unlock_bail: - if (thread != NULL) - __timer_thread_dealloc (thread); - if (newtimer != NULL) - { - timer_delref (newtimer); - __timer_dealloc (newtimer); - } - } - - pthread_mutex_unlock (&__timer_mutex); - - return retval; -} |