Many (if not "almost all") programs that spawn other programs via
g_spawn_sync() or the like simply want to check whether or not the
child exited successfully, but doing so requires use of
platform-specific functionality and there's actually a fair amount of
boilerplate involved.
This new API will help drain a *lot* of mostly duplicated code in
GNOME, from gnome-session to gdm. And we can see that some bits even
inside GLib were doing it wrong; for example checking the exit status
on Unix, but ignoring it on Windows.
https://bugzilla.gnome.org/show_bug.cgi?id=679691
Add a G_SPAWN_SEARCH_PATH_FROM_ENVP flag to GSpawnFlags so that
g_spawn_async() etc use the PATH variable from the passed-in child
environment to search for the executable.
If both this flag and the G_SPAWN_SEARCH_PATH flag are set, the
child environment is searched first and only falls back to the
PATH from the process environment if it is unset.
Bug #676398.
Rename G_SPAWN_ERROR_2BIG to G_SPAWN_ERROR_TOO_BIG (while keeping the
old name for compatibility), to fix problems with language bindings
where the old name translates into something that would be
syntactically invalid due to starting with a digit.
https://bugzilla.gnome.org/show_bug.cgi?id=671025
Document the previously uncovered case of calling g_spawn_async_with_pipes()
without a full path but no G_SPAWN_SEARCH_PATH. This runs programs from the
current directory, which might be unexpected and even dangerous in some corner
cases.
https://bugzilla.gnome.org/show_bug.cgi?id=656621
We should by default reset signal handlers; particularly with the
ability to install them via g_unix_signal_source_new(), we don't
want to call a user callback inside a fork()ed helper process.
https://bugzilla.gnome.org/show_bug.cgi?id=652072
I was debugging gthread/tests/spawn-multithreaded.c, and while I
don't think I actually hit EINTR in any of these cases, it'd be
good to fix them anyways.
https://bugzilla.gnome.org/show_bug.cgi?id=652072
Fix various (out) arguments, (allow-none) and (array zero-terminated=1)
for g_spawn_*() and some others.
Some additional fixes by Colin Walters <walters@verbum.org>
https://bugzilla.gnome.org/show_bug.cgi?id=646635
2008-09-25 Tor Lillqvist <tml@novell.com>
* glib/gspawn-win32.c (do_spawn_with_pipes) (do_spawn_directly):
Just ignore the child_setup function, never call it. The is no
situation in which it could be useful on Windows. Do print a
warning, like before.
* glib/gspawn.c (g_spawn_async_with_pipes): Corresponding change
in documentation.
svn path=/trunk/; revision=7540
2008-06-11 Tor Lillqvist <tml@novell.com>
* glib/gmain.c
* glib/gspawn.c: Clarify what a "child pid" is in the doc
comments.
svn path=/trunk/; revision=6995
2007-10-16 Matthias Clasen <mclasen@redhat.com>
* configure.in: Check for sys/resource.h
* glib/gspawn.c: Improve the fdwalk implementation on Linux
to only walk over actually open file descriptors. (#469231,
Lennart Poettering)
svn path=/trunk/; revision=5783
2006-12-15 Matthias Clasen <mclasen@redhat.com>
Fix#357585, Padraig O'Briain.
* configure.in: Check for fdwalk.
* glib/gspawn.c (do_exec): Use fdwalk() to close all
file descriptors.
* glib/gspawn.c (fdwalk): Fallback implementation of
fdwalk.
2005-12-02 Matthias Clasen <mclasen@redhat.com>
* glib/gspawn.c:
* configure.in: Remove support for Solaris threads.
(#136971, Sebastian Wilhelmi, patch by Andrew Paprocki)
2005-08-25 Tor Lillqvist <tml@novell.com>
Make also the g_spawn*() functions take parameters in the GLib
file name encoding, i.e. UTF-8, on Windows. Has no impact on Unix
API or ABI. Like the other GLib API that was earlier changed to
use UTF-8 on Windows, the names of the functions that take UTF-8
have _utf8 suffixes added by using preprocessor macros in the
header file. The old names are kept for functions with the old
behaviour, taking parameters in the system codepage, for DLL ABI
stability.
* glib/gspawn.h: On Win32 add the suffix _utf8 to the names of the
g_spawn*() functions.
* glib/gspawn-win32.c: Use wide-char API on NT-based
Windows. Convert parameters from UTF-8 to wide chars (NT) or
system codepage (Win9x) and call the C library _wspawn*() or
spawn*() functions respectvely. Add DLL ABI stability versions
that take parameters in the system codepage.
* glib/gspawn-win32-helper.c: On NT-based Windows use the
wide-char versions of argv and envp, and use wide-char API to
change directory and spawn the program to run. Remove the verbose
debugging output, it was too complex to modify for the wide-char
features. (Just add temporary debugging printouts if needed, no
need to have them permanently in the source.)
* glib/gspawn.c: Corresponding documentation updates.
* glib/glib.symbols: Corresponding changes: Mark the ABI stability
symbols as PRIVATE, add the new _utf8-suffixed ones.
2005-05-20 Federico Mena Quintero <federico@ximian.com>
Merged from glib-2-6:
* glib/gspawn.c (g_spawn_command_line_sync): Clarify the meaning
of exit_status(); it's not the return code from the child, but
rather the waitpid() status.
2005-03-13 Matthias Clasen <mclasen@redhat.com>
Make PLT-reduction work with gcc4, and don't include
everything in galias.h:
* glib/glib.symbols: Group symbols by header and source file.
* glib/makegalias.pl: Protect definitions by the same
preprocessor symbols used to guard the headers. Move
the alias declarations to a separate file which is
produced when calling makegalias.pl -def
* glib/Makefile.am (galiasdef.c): Add a rule to generate this
file.
* glib/*.c: Include galias.h after the other GLib headers,
include galiasdef.c at the bottom.
2004-11-27 Matthias Clasen <mclasen@redhat.com>
* glib/gspawn.c (g_spawn_async_with_pipes): Update the @flags
documentation with references to GChildWatch and
g_spawn_close_pid(). (#136255, noted by Owen Taylor)
Sun Mar 14 13:23:36 2004 Owen Taylor <otaylor@redhat.com>
* glib/gspawn.c: Use fork1() not fork for
G_THREADS_IMPL_SOLARIS. (#136971, Sebastian Wilhelmi)
Mon Mar 1 15:39:57 2004 Owen Taylor <otaylor@redhat.com>
Patch from J. Ali Harlow
* configure.in: Use void * not HANDLE for GPid on win32.
* glib/gspawn.[ch] glib/gspawn-win32.[ch] glib/glib.def:
Add g_spawn_close_pid().
* glib/gspawn.[ch]: Make g_spawn functions take
GPid * instead if int * (GPid == int on unix, will
produce compile warnings until fixed on Win32.)
* tests/child-test.c: Make the test a little more
inappropriately verbose.
* glib/gmain.c: Add some documentation warnings about
not closing @pid while the source is active.
Mon Jun 2 14:18:21 2003 Owen Taylor <otaylor@redhat.com>
Patch from Jeffrey Stedfast <fejj@ximian.com> (#104825)
* glib/gspawn.c (read_data): Don't read() into '&buf', while this
is technically okay - it is clearer as just 'buf'.
(write_all): New helper function that handles write() interrupts.
(write_err_and_exit): Use write_all() instead of write().
(fork_exec_with_pipes): Same here.
