1b6b029e40
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@40 c046a42c-6fe2-441c-8c8c-71466251a162
62 lines
1.3 KiB
C
62 lines
1.3 KiB
C
#include <stdlib.h>
|
|
#include <stdio.h>
|
|
#include <signal.h>
|
|
#include <unistd.h>
|
|
#include <inttypes.h>
|
|
#include <pthread.h>
|
|
#include <sys/wait.h>
|
|
#include <sched.h>
|
|
|
|
int thread1_func(void *arg)
|
|
{
|
|
int i;
|
|
char buf[512];
|
|
|
|
for(i=0;i<10;i++) {
|
|
snprintf(buf, sizeof(buf), "thread1: %d %s\n", i, (char *)arg);
|
|
write(1, buf, strlen(buf));
|
|
usleep(100 * 1000);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
int thread2_func(void *arg)
|
|
{
|
|
int i;
|
|
char buf[512];
|
|
for(i=0;i<20;i++) {
|
|
snprintf(buf, sizeof(buf), "thread2: %d %s\n", i, (char *)arg);
|
|
write(1, buf, strlen(buf));
|
|
usleep(120 * 1000);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
#define STACK_SIZE 16384
|
|
|
|
void test_clone(void)
|
|
{
|
|
uint8_t *stack1, *stack2;
|
|
int pid1, pid2, status1, status2;
|
|
|
|
stack1 = malloc(STACK_SIZE);
|
|
pid1 = clone(thread1_func, stack1 + STACK_SIZE,
|
|
CLONE_VM | CLONE_FS | CLONE_FILES | SIGCHLD, "hello1");
|
|
|
|
stack2 = malloc(STACK_SIZE);
|
|
pid2 = clone(thread2_func, stack2 + STACK_SIZE,
|
|
CLONE_VM | CLONE_FS | CLONE_FILES | SIGCHLD, "hello2");
|
|
|
|
while (waitpid(pid1, &status1, 0) != pid1);
|
|
while (waitpid(pid2, &status2, 0) != pid2);
|
|
printf("status1=0x%x\n", status1);
|
|
printf("status2=0x%x\n", status2);
|
|
printf("End of clone test.\n");
|
|
}
|
|
|
|
int main(int argc, char **argv)
|
|
{
|
|
test_clone();
|
|
return 0;
|
|
}
|