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[Win32] Fix the asynchronous g_spawn* to return the process handle of the

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2002-11-18  Tor Lillqvist  <tml@iki.fi>

	[Win32] Fix the asynchronous g_spawn* to return the process handle
	of the started program properly. (Note: not the process id. The
	spawn*() functions in the C runtime return the created process's
	handle. There doesn't seem to be any way to get the process id of
	a child process if you have the handle. But then, the process
	handle usually is more useful anyway.)

	* glib/gspawn-win32-helper.c (WinMain): If the spawning of the
	child process succeeded, and if asynchronous spawn (P_NOWAIT),
	write the result handle up to the parent process, waiting to read
	it in do_spawn_with_pipes().

	* glib/gspawn-win32.c (do_spawn): Use return value from spawning
	the helper. If it is -1 the helper wasn't found or couldn't be run
	for some reason. Otherwise it is the helper's process handle.

	(g_spawn_async_with_pipes): Pass the child_pid parameter on to
	do_spawn_with_pipes().

	(do_spawn_with_pipes): Take also a child_pid parameter. If
	do_spawn() returned -1, fail immediately. Otherwise make the
	handle passed to us by the helper process into a handle valid in
	this process by calling DuplicateHandle().
This commit is contained in:
Tor Lillqvist
2002-11-17 23:30:32 +00:00
committed by Tor Lillqvist
parent 1f04f2cce2
commit 0b4bcbe1d9
9 changed files with 269 additions and 44 deletions
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ChangeLog.pre-2-12
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@@ -1,3 +1,29 @@
2002-11-18 Tor Lillqvist <tml@iki.fi>
[Win32] Fix the asynchronous g_spawn* to return the process handle
of the started program properly. (Note: not the process id. The
spawn*() functions in the C runtime return the created process's
handle. There doesn't seem to be any way to get the process id of
a child process if you have the handle. But then, the process
handle usually is more useful anyway.)
* glib/gspawn-win32-helper.c (WinMain): If the spawning of the
child process succeeded, and if asynchronous spawn (P_NOWAIT),
write the result handle up to the parent process, waiting to read
it in do_spawn_with_pipes().
* glib/gspawn-win32.c (do_spawn): Use return value from spawning
the helper. If it is -1 the helper wasn't found or couldn't be run
for some reason. Otherwise it is the helper's process handle.
(g_spawn_async_with_pipes): Pass the child_pid parameter on to
do_spawn_with_pipes().
(do_spawn_with_pipes): Take also a child_pid parameter. If
do_spawn() returned -1, fail immediately. Otherwise make the
handle passed to us by the helper process into a handle valid in
this process by calling DuplicateHandle().
2002-11-17 Tor Lillqvist <tml@iki.fi>
* glib/gspawn-win32.c (g_spawn_async_with_pipes): Ignore the