[ Version ( deprecated_since = "2.38" , replacement = "trap_subprocess" , since = "2.16" ) ]
public bool trap_fork (uint64 usec_timeout, TestTrapFlags test_trap_flags)
Warning: trap_fork is deprecated since 2.38. Use trap_subprocess.
Forks the current test program to execute a test case that might not return or that might abort.
This function is implemented only on Unix platforms, is not always reliable due to problems inherent in fork-without-exec and doesn't set close-on-exec flag on its file descriptors. Use func@GLib.test_trap_subprocess] instead.
If usec_timeout is non-0, the forked test case is aborted and considered failing if its run time exceeds it.
The forking behavior can be configured with [flags@GLib.TestTrapFlags] flags.
In the following example, the test code forks, the forked child process produces some sample output and exits successfully. The forking parent process then asserts successful child program termination and validates child program outputs.
```c static void test_fork_patterns (void) { if (g_test_trap_fork (0, G_TEST_TRAP_SILENCE_STDOUT | G_TEST_TRAP_SILENCE_STDERR)) { g_print ("some stdout text: somagic17 "); g_printerr ("some stderr text: semagic43 "); exit (0); // successful test run } g_test_trap_assert_passed (); g_test_trap_assert_stdout ("*somagic17*"); g_test_trap_assert_stderr ("*semagic43*"); } ```
| usec_timeout |
timeout for the forked test in microseconds |
| test_trap_flags |
flags to modify forking behaviour |
|
true for the forked child and false for the executing parent process. |