| Standards / Extensions | C or C++ | Dependencies |
|---|---|---|
POSIX.4a |
both | POSIX(ON) |
#define _OPEN_THREADS
#include <pthread.h>
int pthread_attr_setstacksize(pthread_attr_t *attr, size_t stacksize);#define _UNIX03_THREADS
#include <pthread.h>
int pthread_attr_setstacksize(pthread_attr_t *attr, size_t stacksize);Sets the stacksize, in bytes, for the thread attribute object, attr. stacksize is the initial stack size. Other stack characteristics, like stack increment size, are inherited from the STACK64/THREADSTACK64 runtime option.
You can use a thread attribute object to manage the characteristics of threads in your application. It defines the set of values to be used for the thread during its creation. By establishing a thread attribute object, you can create many threads with the same set of characteristics, without defining those characteristics for each thread. You can define more than one thread attribute object.
If successful, pthread_attr_setstacksize() returns 0.
If unsuccessful, pthread_attr_setstacksize() returns -1.
Special behavior for Single UNIX Specification, Version 3:
If unsuccessful, pthread_attr_setstacksize() returns an error number to indicate the error.
⁄* CELEBP12 *⁄
#define _OPEN_THREADS
#include <stdio.h>
#include <pthread.h>
void *thread1(void *arg)
{
printf("hello from the thread\n");
pthread_exit(NULL);
}
int main()
{
int rc, stat;
size_t s1;
pthread_attr_t attr;
pthread_t thid;
rc = pthread_attr_init(&attr);
if (rc == -1) {
perror("error in pthread_attr_init");
exit(1);
}
s1 = 4096;
rc = pthread_attr_setstacksize(&attr, s1);
if (rc == -1) {
perror("error in pthread_attr_setstacksize");
exit(2);
}
rc = pthread_create(&thid, &attr, thread1, NULL);
if (rc == -1) {
perror("error in pthread_create");
exit(3);
}
rc = pthread_join(thid, (void *)&stat);
exit(0);
}