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git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@754 42af7a65-404d-4744-a932-0658087f49c3
This commit is contained in:
patacongo
2008-05-31 18:02:49 +00:00
parent b08da21f90
commit 62d058a834
5 changed files with 142 additions and 40 deletions
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sched/pthread_initialize.c
+27 -25
View File
@@ -1,7 +1,7 @@
/************************************************************
/****************************************************************************
* pthread_initialize.c
*
* Copyright (C) 2007 Gregory Nutt. All rights reserved.
* Copyright (C) 2007, 2008 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <spudmonkey@racsa.co.cr>
*
* Redistribution and use in source and binary forms, with or without
@@ -14,7 +14,7 @@
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name Gregory Nutt nor the names of its contributors may be
* 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.
*
@@ -31,28 +31,28 @@
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
************************************************************/
****************************************************************************/
/************************************************************
/****************************************************************************
* Included Files
************************************************************/
****************************************************************************/
#include <sys/types.h>
#include <semaphore.h>
#include <errno.h>
#include "pthread_internal.h"
/************************************************************
/****************************************************************************
* Definitions
************************************************************/
****************************************************************************/
/************************************************************
/****************************************************************************
* Private Type Declarations
************************************************************/
****************************************************************************/
/************************************************************
/****************************************************************************
* Global Variables
************************************************************/
****************************************************************************/
/* This is the head of a private singly linked list. It
* is used to retain information about the spawned threads.
@@ -73,19 +73,19 @@ sem_t g_join_semaphore;
ubyte g_pthread_num_keys;
/************************************************************
/****************************************************************************
* Private Variables
************************************************************/
****************************************************************************/
/************************************************************
/****************************************************************************
* Private Functions
************************************************************/
****************************************************************************/
/************************************************************
/****************************************************************************
* Public Functions
************************************************************/
****************************************************************************/
/************************************************************
/****************************************************************************
* Function: pthread_initialize
*
* Description:
@@ -100,7 +100,7 @@ ubyte g_pthread_num_keys;
*
* Assumptions:
*
************************************************************/
****************************************************************************/
void pthread_initialize(void)
{
@@ -117,7 +117,7 @@ void pthread_initialize(void)
(void)sem_init(&g_join_semaphore, 0, 1);
}
/************************************************************
/****************************************************************************
* Function: pthread_takesemaphore and pthread_givesemaphore
*
* Description:
@@ -127,11 +127,12 @@ void pthread_initialize(void)
* None
*
* Return Value:
* None
* 0 on success or an ERROR on failure with errno value set to EINVAL.
* Note that the errno EINTR is never returned by this function.
*
* Assumptions:
*
************************************************************/
****************************************************************************/
int pthread_takesemaphore(sem_t *sem)
{
@@ -173,8 +174,9 @@ int pthread_givesemaphore(sem_t *sem)
/* Give the semaphore */
if (sem_post(sem) == OK)
return OK;
{
return OK;
}
else
{
/* sem_post() reported an error */