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Customize the stack size of the threads used by pupnp through the new THREAD_STACK_SIZE variable

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This patch allows a user to customize the stack size of the threads used by
pupnp through the new THREAD_STACK_SIZE variable. This is especially useful
on embedded systems with limited memory where the user can set THREAD_STACK_SIZE
to ITHREAD_STACK_MIN.

However, as this modification can have side effects, I set 0 as the default
value, so threads will continue to use the default stack size of the system
(which varies greatly as stated in
https://computing.llnl.gov/tutorials/pthreads/).
(cherry picked from commit 467f9987a1)
This commit is contained in:
Fabrice Fontaine
2010-09-18 05:56:29 -03:00
committed by Marcelo Roberto Jimenez
parent ba4ea3bc9b
commit 4a8c4f5c50
7 changed files with 149 additions and 3 deletions
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29
threadutil/src/ThreadPool.c
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@@ -609,12 +609,16 @@ static int CreateWorker(ThreadPool *tp)
ithread_t temp;
int rc = 0;
int currentThreads = tp->totalThreads + 1;
ithread_attr_t attr;
if (tp->attr.maxThreads != INFINITE_THREADS &&
currentThreads > tp->attr.maxThreads) {
return EMAXTHREADS;
}
rc = ithread_create(&temp, NULL, WorkerThread, tp);
ithread_attr_init(&attr);
ithread_attr_setstacksize(&attr, tp->attr.stackSize);
rc = ithread_create(&temp, &attr, WorkerThread, tp);
ithread_attr_destroy(&attr);
if (rc == 0) {
rc = ithread_detach(temp);
while (tp->totalThreads < currentThreads) {
@@ -1174,6 +1178,7 @@ int TPAttrInit(ThreadPoolAttr *attr)
attr->maxIdleTime = DEFAULT_IDLE_TIME;
attr->maxThreads = DEFAULT_MAX_THREADS;
attr->minThreads = DEFAULT_MIN_THREADS;
attr->stackSize = DEFAULT_STACK_SIZE;
attr->schedPolicy = DEFAULT_POLICY;
attr->starvationTime = DEFAULT_STARVATION_TIME;
attr->maxJobsTotal = DEFAULT_MAX_JOBS_TOTAL;
@@ -1298,6 +1303,28 @@ int TPAttrSetMinThreads(ThreadPoolAttr *attr, int minThreads)
return 0;
}
/****************************************************************************
* Function: TPAttrSetStackSize
*
* Description:
* Sets the stack size for the thread pool attributes.
* Parameters:
* attr - must be valid thread pool attributes.
* stackSize - value to set
* Returns:
* Always returns 0.
*****************************************************************************/
int TPAttrSetStackSize(ThreadPoolAttr *attr, size_t stackSize)
{
if (!attr) {
return EINVAL;
}
attr->stackSize = stackSize;
return 0;
}
/****************************************************************************
* Function: TPAttrSetIdleTime
*