2c2a85f086
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@2337 42af7a65-404d-4744-a932-0658087f49c3
102 lines
3.7 KiB
C
102 lines
3.7 KiB
C
/************************************************************************
|
|
* sem_findnamed.c
|
|
*
|
|
* Copyright (C) 2007, 2009 Gregory Nutt. All rights reserved.
|
|
* Author: Gregory Nutt <spudmonkey@racsa.co.cr>
|
|
*
|
|
* 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 <string.h>
|
|
|
|
#include "sem_internal.h"
|
|
|
|
/************************************************************************
|
|
* Definitions
|
|
************************************************************************/
|
|
|
|
/************************************************************************
|
|
* Private Type Declarations
|
|
************************************************************************/
|
|
|
|
/************************************************************************
|
|
* Global Variables
|
|
************************************************************************/
|
|
|
|
/************************************************************************
|
|
* Private Variables
|
|
************************************************************************/
|
|
|
|
/************************************************************************
|
|
* Private Functions
|
|
************************************************************************/
|
|
|
|
/************************************************************************
|
|
* Public Functions
|
|
************************************************************************/
|
|
|
|
/************************************************************************
|
|
* Function: sem_findnamed
|
|
*
|
|
* Description:
|
|
* Search the g_nsems list to find the semaphore with
|
|
* the matching name.
|
|
*
|
|
* Parameters:
|
|
* name - semaphore name
|
|
*
|
|
* Return Value:
|
|
* Pointer to the semaphore or NULL if not found
|
|
*
|
|
************************************************************************/
|
|
|
|
FAR nsem_t *sem_findnamed(const char *name)
|
|
{
|
|
FAR nsem_t *psem;
|
|
|
|
/* Search the list of named semaphores */
|
|
|
|
for (psem = (FAR nsem_t*)g_nsems.head; (psem); psem = psem->flink)
|
|
{
|
|
if (!strcmp(name, psem->name))
|
|
{
|
|
break;
|
|
}
|
|
}
|
|
|
|
return(psem);
|
|
}
|
|
|