From 3ba34141da77a24c251ee6530f3f72a366fe556e Mon Sep 17 00:00:00 2001 From: Philipp Stephani Date: Fri, 25 Dec 2020 11:33:02 +0100 Subject: Import posix_spawn from Gnulib. posix_spawn is less error-prone than vfork + exec, and can make use of system-specific optimizations like `clone' on Linux. Import Gnulib replacement so that we can use recent additions like `posix_spawn_file_actions_addchdir'. The only manual change are to admin/merge-gnulib and .gitignore. All other changes are due to rerunning merge-gnulib. * admin/merge-gnulib (GNULIB_MODULES): Add posix_spawn-related modules. * .gitignore: Add new generated files. --- lib/spawn_faction_destroy.c | 61 +++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 61 insertions(+) create mode 100644 lib/spawn_faction_destroy.c (limited to 'lib/spawn_faction_destroy.c') diff --git a/lib/spawn_faction_destroy.c b/lib/spawn_faction_destroy.c new file mode 100644 index 00000000000..e9985f4a0d4 --- /dev/null +++ b/lib/spawn_faction_destroy.c @@ -0,0 +1,61 @@ +/* Copyright (C) 2000, 2009-2020 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + This program is free software: you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 3 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program. If not, see . */ + +#include + +/* Specification. */ +#include + +#include + +#if REPLACE_POSIX_SPAWN +# include "spawn_int.h" +#endif + +/* Initialize data structure for file attribute for 'spawn' call. */ +int +posix_spawn_file_actions_destroy (posix_spawn_file_actions_t *file_actions) +#undef posix_spawn_file_actions_destroy +{ +#if !REPLACE_POSIX_SPAWN + return posix_spawn_file_actions_destroy (file_actions); +#else + int i; + + /* Free the paths in the open actions. */ + for (i = 0; i < file_actions->_used; ++i) + { + struct __spawn_action *sa = &file_actions->_actions[i]; + switch (sa->tag) + { + case spawn_do_open: + free (sa->action.open_action.path); + break; + case spawn_do_chdir: + free (sa->action.chdir_action.path); + break; + default: + /* No cleanup required. */ + break; + } + } + + /* Free the array of actions. */ + free (file_actions->_actions); + + return 0; +#endif +} -- cgit v1.2.3