const int THREAD_CLONE_FLAGS = CLONE_THREAD | CLONE_SIGHAND | CLONE_FS | CLONE_VM | CLONE_FILES;
+struct child_args {
+ int num_threads;
+ int pfd[2];
+ int cpid;
+ int thr_tids[MAX_THREADS];
+};
+
+static struct child_args procs[MAX_PROCESSES];
+static int num_processes = 2;
+static int need_cleanup = 0;
+
static int _prctl(int option, unsigned long arg2, unsigned long arg3, unsigned long arg4,
unsigned long arg5)
{
#define handle_error(msg) __handle_error(__FILE__, __LINE__, msg)
static void __handle_error(char *fn, int ln, char *msg)
{
+ int pidx;
printf("(%s:%d) - ", fn, ln);
perror(msg);
+ if (need_cleanup) {
+ for (pidx = 0; pidx < num_processes; ++pidx)
+ kill(procs[pidx].cpid, 15);
+ need_cleanup = 0;
+ }
exit(EXIT_FAILURE);
}
return cookie;
}
-struct child_args {
- int num_threads;
- int pfd[2];
- int cpid;
- int thr_tids[MAX_THREADS];
-};
-
static int child_func_thread(void __attribute__((unused))*arg)
{
while (1)
int main(int argc, char *argv[])
{
- struct child_args procs[MAX_PROCESSES];
-
int keypress = 0;
- int num_processes = 2;
int num_threads = 3;
int delay = 0;
int res = 0;
printf("\n## Create a thread/process/process group hiearchy\n");
create_processes(num_processes, num_threads, procs);
+ need_cleanup = 1;
disp_processes(num_processes, procs);
validate(get_cs_cookie(0) == 0);