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#include <stdlib.h>
#include <string.h>
#include <assert.h>
#include <fcntl.h>
#include <sys/stat.h>
#include <process/process.h>
#include <waiter/waiter.h>
#include <talloc/talloc.h>
static const char *async_fifo = "/tmp/test-process-both.fifo";
static int do_sync_child(void)
{
return 42;
}
static int do_async_child(void)
{
char c;
int fd;
fd = open(async_fifo, O_RDONLY);
assert(fd >= 0);
read(fd, &c, 1);
assert(c == 1);
return 43;
}
struct test {
int async_fd;
struct process *sync_process;
struct process *async_process;
bool async_exited;
int async_exit_status;
};
static void async_exit_cb(struct process *process)
{
struct test *test = process->data;
test->async_exited = true;
test->async_exit_status = process->exit_status;
}
int main(int argc, char **argv)
{
const char *sync_child_argv[3], *async_child_argv[3];
struct waitset *waitset;
struct test *test;
char c;
int rc;
if (argc == 2 && !strcmp(argv[1], "sync-child"))
return do_sync_child();
if (argc == 2 && !strcmp(argv[1], "async-child"))
return do_async_child();
test = talloc_zero(NULL, struct test);
unlink(async_fifo);
rc = mkfifo(async_fifo, 0600);
assert(rc == 0);
waitset = waitset_create(test);
process_init(test, waitset, false);
sync_child_argv[0] = argv[0];
sync_child_argv[1] = "sync-child";
sync_child_argv[2] = NULL;
test->sync_process = process_create(test);
test->sync_process->path = sync_child_argv[0];
test->sync_process->argv = sync_child_argv;
async_child_argv[0] = argv[0];
async_child_argv[1] = "async-child";
async_child_argv[2] = NULL;
test->async_process = process_create(test);
test->async_process->path = async_child_argv[0];
test->async_process->argv = async_child_argv;
test->async_process->exit_cb = async_exit_cb;
test->async_process->data = test;
process_run_async(test->async_process);
process_run_sync(test->sync_process);
assert(WIFEXITED(test->sync_process->exit_status));
assert(WEXITSTATUS(test->sync_process->exit_status) == 42);
/* now that the sync process has completed, let the async process
* exit */
test->async_fd = open(async_fifo, O_WRONLY);
assert(test->async_fd >= 0);
c = 1;
write(test->async_fd, &c, 1);
for (;;) {
waiter_poll(waitset);
if (test->async_exited)
break;
}
assert(WIFEXITED(test->async_exit_status));
assert(WEXITSTATUS(test->async_exit_status) == 43);
talloc_free(test);
unlink(async_fifo);
return EXIT_SUCCESS;
}
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