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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.
45 lines
1.6 KiB
C
45 lines
1.6 KiB
C
/* Copyright (C) 2000, 2004, 2009-2020 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <https://www.gnu.org/licenses/>. */
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#include <config.h>
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/* Specification. */
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#include <spawn.h>
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#include <errno.h>
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#include <string.h>
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#define ALL_FLAGS (POSIX_SPAWN_RESETIDS \
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| POSIX_SPAWN_SETPGROUP \
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| POSIX_SPAWN_SETSIGDEF \
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| POSIX_SPAWN_SETSIGMASK \
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| POSIX_SPAWN_SETSCHEDPARAM \
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| POSIX_SPAWN_SETSCHEDULER \
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| POSIX_SPAWN_USEVFORK)
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/* Store flags in the attribute structure. */
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int
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posix_spawnattr_setflags (posix_spawnattr_t *attr, short int flags)
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{
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/* Check no invalid bits are set. */
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if (flags & ~ALL_FLAGS)
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return EINVAL;
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/* Store the flag word. */
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attr->_flags = flags;
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return 0;
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}
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