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/*
* A simple testee program with threads
*/
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <signal.h>
#include <string.h>
#include <sys/types.h>
#include <sys/wait.h>
#include <sys/stat.h>
#include <sys/mman.h>
#include <fcntl.h>
#include <pthread.h>
#include <syscall.h>
#include "zdtmtst.h"
#define exit_group(code) syscall(__NR_exit_group, code)
const char *test_doc = "Create a few pthreads/forks and compare TLS and mmap data on restore\n";
const char *test_author = "Cyrill Gorcunov <gorcunov@openvz.org";
static __thread char tls_data[10];
#define TRANSITION_PASSED 4
#define TRANSITION_FAILED 8
#define MAP(map, i) (((int *)map)[i])
#define SET_PASSED(map, i) MAP(map, i) = TRANSITION_PASSED
#define SET_FAILED(map, i) MAP(map, i) = TRANSITION_FAILED
#define IS_PASSED(map, i) (MAP(map, i) & TRANSITION_PASSED)
#define NR_WAITERS 6
static task_waiter_t waiter[NR_WAITERS];
#define passage(index) \
do { \
task_waiter_complete(&waiter[index], 1); \
task_waiter_wait4(&waiter[index], 2); \
if (memcmp(tls_data, __tls_data, sizeof(tls_data))) \
SET_FAILED(map, index); \
else \
SET_PASSED(map, index); \
} while (0)
static void *thread_subfunc_1(void *map)
{
char __tls_data[10] = "1122334455";
pid_t pid;
int status;
memcpy(tls_data, __tls_data, sizeof(tls_data));
pid = test_fork();
if (pid < 0) {
exit_group(1);
} else if (pid == 0) {
passage(0);
exit(0);
}
passage(1);
test_msg("Waiting for %d\n", pid);
waitpid(pid, &status, 0);
return NULL;
}
static void *thread_func_1(void *map)
{
char __tls_data[10] = "3122131212";
pthread_t th;
pid_t pid;
int status;
memcpy(tls_data, __tls_data, sizeof(tls_data));
if (pthread_create(&th, NULL, &thread_subfunc_1, map)) {
fail("Can't pthread_create");
exit_group(1);
}
pid = test_fork();
if (pid < 0) {
fail("Failed to test_fork()");
exit_group(1);
} else if (pid == 0) {
passage(2);
exit(0);
}
passage(3);
pthread_join(th, NULL);
test_msg("Waiting for %d\n", pid);
waitpid(pid, &status, 0);
return NULL;
}
static void *thread_func_2(void *map)
{
char __tls_data[10] = "wasdfrdgdc";
pid_t pid;
int status;
memcpy(tls_data, __tls_data, sizeof(tls_data));
pid = test_fork();
if (pid < 0) {
fail("Failed to test_fork()");
exit_group(1);
} else if (pid == 0) {
passage(4);
exit(0);
}
passage(5);
test_msg("Waiting for %d\n", pid);
waitpid(pid, &status, 0);
return NULL;
}
int main(int argc, char *argv[])
{
pthread_t th1, th2;
int rc1, rc2, i;
void *map;
test_init(argc, argv);
for (i = 0; i < NR_WAITERS; i++)
task_waiter_init(&waiter[i]);
test_msg("%s pid %d\n", argv[0], getpid());
map = mmap(NULL, 1024, PROT_READ | PROT_WRITE, MAP_SHARED | MAP_ANONYMOUS, -1, 0);
if (map == MAP_FAILED) {
fail("Can't map");
exit(1);
}
rc1 = pthread_create(&th1, NULL, &thread_func_1, map);
rc2 = pthread_create(&th2, NULL, &thread_func_2, map);
if (rc1 | rc2) {
fail("Can't pthread_create");
exit(1);
}
test_msg("Waiting until all threads are ready\n");
for (i = NR_WAITERS - 1; i >= 0; i--)
task_waiter_wait4(&waiter[i], 1);
test_daemon();
test_waitsig();
for (i = 0; i < NR_WAITERS; i++)
task_waiter_complete(&waiter[i], 2);
test_msg("Waiting while all threads are joined\n");
pthread_join(th1, NULL);
pthread_join(th2, NULL);
if (IS_PASSED(map, 0) && IS_PASSED(map, 1) && IS_PASSED(map, 2) && IS_PASSED(map, 3) && IS_PASSED(map, 4) &&
IS_PASSED(map, 5))
pass();
else
fail();
return 0;
}
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