diff options
Diffstat (limited to 'nuttx/sched/timer_release.c')
-rw-r--r-- | nuttx/sched/timer_release.c | 159 |
1 files changed, 0 insertions, 159 deletions
diff --git a/nuttx/sched/timer_release.c b/nuttx/sched/timer_release.c deleted file mode 100644 index ed83b5f53..000000000 --- a/nuttx/sched/timer_release.c +++ /dev/null @@ -1,159 +0,0 @@ -/******************************************************************************** - * timer_release.c - * - * Copyright (C) 2008 Gregory Nutt. All rights reserved. - * Author: Gregory Nutt <gnutt@nuttx.org> - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in - * the documentation and/or other materials provided with the - * distribution. - * 3. Neither the name NuttX nor the names of its contributors may be - * used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS - * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE - * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, - * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, - * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS - * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED - * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN - * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGE. - * - ********************************************************************************/ - -/******************************************************************************** - * Included Files - ********************************************************************************/ - -#include <nuttx/config.h> - -#include <queue.h> -#include <errno.h> - -#include <nuttx/kmalloc.h> - -#include "timer_internal.h" - -#ifndef CONFIG_DISABLE_POSIX_TIMERS - -/******************************************************************************** - * Definitions - ********************************************************************************/ - -/******************************************************************************** - * Private Data - ********************************************************************************/ - -/******************************************************************************** - * Public Data - ********************************************************************************/ - -/******************************************************************************** - * Private Functions - ********************************************************************************/ - -/******************************************************************************** - * Name: timer_free - * - * Description: - * Remove the timer from the allocated timer list and free it or return it to - * the free list (depending on whether or not the timer is one of the - * preallocated timers) - * - ********************************************************************************/ - -static inline void timer_free(struct posix_timer_s *timer) -{ - irqstate_t flags; - - /* Remove the timer from the allocated list */ - - flags = irqsave(); - sq_rem((FAR sq_entry_t*)timer, (sq_queue_t*)&g_alloctimers); - - /* Return it to the free list if it is one of the preallocated timers */ - -#if CONFIG_PREALLOC_TIMERS > 0 - if ((timer->pt_flags & PT_FLAGS_PREALLOCATED) != 0) - { - sq_addlast((FAR sq_entry_t*)timer, (FAR sq_queue_t*)&g_freetimers); - irqrestore(flags); - } - else -#endif - { - /* Otherwise, return it to the heap */ - - irqrestore(flags); - sched_free(timer); - } -} - -/******************************************************************************** - * Public Functions - ********************************************************************************/ - -/******************************************************************************** - * Name: timer_release - * - * Description: - * timer_release implements the heart of timer_delete. It is private to the - * the OS internals and differs only in that return value of 1 means that the - * timer was not actually deleted. - * - * Parameters: - * timer - The per-thread timer, previously created by the call to - * timer_create(), to be deleted. - * - * Return Value: - * If the call succeeds, timer_release() will return 0 (OK) or 1 (meaning that - * the timer is still valid). Otherwise, the function will return a negated errno: - * - * -EINVAL - The timer specified timerid is not valid. - * - ********************************************************************************/ - -int timer_release(FAR struct posix_timer_s *timer) -{ - /* Some sanity checks */ - - if (!timer) - { - return -EINVAL; - } - - /* Release one reference to timer. Don't delete the timer until the count - * would decrement to zero. - */ - - if (timer->pt_crefs > 1) - { - timer->pt_crefs--; - return 1; - } - - /* Free the underlying watchdog instance (the timer will be canceled by the - * watchdog logic before it is actually deleted) - */ - - (void)wd_delete(timer->pt_wdog); - - /* Release the timer structure */ - - timer_free(timer); - return OK; -} - -#endif /* CONFIG_DISABLE_POSIX_TIMERS */ |