spawn_async
Description:
Executes a child program asynchronously.
See spawn_async_with_pipes for a full description; this function simply calls the spawn_async_with_pipes without any pipes.
You should call close_pid on the returned child process reference when you don't need it any more.
If you are writing a GTK application, and the program you are spawning is a graphical application too, then to ensure that the spawned program
opens its windows on the right screen, you may want to use GdkAppLaunchContext, GAppLaunchContext, or set the
display environment variable.
Note that the returned child_pid on Windows is a handle to the child process and not its identifier. Process handles and process
identifiers are different concepts on Windows.
Example: Spawn, async:
public static int main (string[] args) {
MainLoop loop = new MainLoop ();
try {
string[] spawn_args = {"ls", "-l", "-h"};
string[] spawn_env = Environ.get ();
Pid child_pid;
Process.spawn_async ("/",
spawn_args,
spawn_env,
SpawnFlags.SEARCH_PATH | SpawnFlags.DO_NOT_REAP_CHILD,
null,
out child_pid);
ChildWatch.add (child_pid, (pid, status) => {
// Triggered when the child indicated by child_pid exits
Process.close_pid (pid);
loop.quit ();
});
loop.run ();
} catch (SpawnError e) {
print ("Error: %s\n", e.message);
}
return 0;
}valac --pkg glib-2.0 GLib.Process.spawn_async.valaParameters:
| working_directory |
child's current working directory, or null to inherit parent's |
| argv |
child's argument vector |
| envp |
child's environment, or null to inherit parent's |
| child_setup |
function to run in the child just before `exec()` |
| child_pid |
return location for child process reference, or null |
| flags |
flags from SpawnFlags |
| user_data |
user data for |
Returns:
|
true on success, false if error is set |