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b3a24d732d
sys$waitid() takes an explicit description of whether it's waiting for a single process with the given PID, all of the children, a group, etc., and returns its info as a siginfo_t. It also doesn't automatically imply WEXITED, which clears up the confusion in the kernel.
58 lines
2.1 KiB
C
58 lines
2.1 KiB
C
/*
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* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#pragma once
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#include <signal.h>
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#include <sys/cdefs.h>
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#include <sys/types.h>
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__BEGIN_DECLS
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#define WEXITSTATUS(status) (((status)&0xff00) >> 8)
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#define WSTOPSIG(status) WEXITSTATUS(status)
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#define WTERMSIG(status) ((status)&0x7f)
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#define WIFEXITED(status) (WTERMSIG(status) == 0)
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#define WIFSTOPPED(status) (((status)&0xff) == 0x7f)
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#define WIFSIGNALED(status) (((char)(((status)&0x7f) + 1) >> 1) > 0)
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#define WNOHANG 1
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#define WUNTRACED 2
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#define WSTOPPED WUNTRACED
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#define WEXITED 4
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#define WCONTINUED 8
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typedef enum {
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P_ALL = 1,
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P_PID,
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P_PGID
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} idtype_t;
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pid_t waitpid(pid_t, int* wstatus, int options);
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pid_t wait(int* wstatus);
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int waitid(idtype_t idtype, id_t id, siginfo_t* infop, int options);
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__END_DECLS
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