9b9be7e1f0
Update files from Gregory Nutt to Apache 2.0 license. Signed-off-by: Alin Jerpelea <alin.jerpelea@sony.com>
104 lines
3.8 KiB
C
104 lines
3.8 KiB
C
/****************************************************************************
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* include/sys/wait.h
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership. The
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* ASF licenses this file to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance with the
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* License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*
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****************************************************************************/
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#ifndef __INCLUDE_SYS_WAIT_H
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#define __INCLUDE_SYS_WAIT_H
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <sys/types.h>
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#include <signal.h>
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#ifdef CONFIG_SCHED_WAITPID
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/****************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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/* The following are provided for analysis of returned status values.
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* Encoded is as follows as 2 bytes of _info(MS) then two bytes of code (LS).
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* Code:
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* 0 - Child has exited, info is the exit code.
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* Other values - Not implemented
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*/
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#define WEXITSTATUS(s) (((s) >> 8) & 0xff) /* Return exit status */
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#define WIFEXITED(s) (((s) & 0xff) == 0) /* True: Child exited normally */
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#define WIFCONTINUED(s) (false) /* True: Child has been continued */
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#define WIFSIGNALED(s) (false) /* True: Child exited due to uncaught signal */
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#define WIFSTOPPED(s) (false) /* True: Child is currently stopped */
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#define WSTOPSIG(s) (false) /* Return signal number that caused process to stop */
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#define WTERMSIG(s) (false) /* Return signal number that caused process to terminate */
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/* The following symbolic constants are possible values for the options
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* argument to waitpid() (1) and/or waitid() (2),
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*/
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#define WCONTINUED (1 << 0) /* Status for child that has been continued (1)(2) */
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#define WNOHANG (1 << 1) /* Do not wait if status not available (1) (2) */
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#define WUNTRACED (1 << 2) /* Report status of stopped child process (1) */
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#define WEXITED (1 << 3) /* Wait for processes that have exited (2) */
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#define WSTOPPED (1 << 4) /* Status for child stopped on signal (2) */
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#define WNOWAIT (1 << 5) /* Keep the process in a waitable state (2) */
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#define WCLAIMED (1 << 7) /* Non-standard (For internal OS use only) */
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/****************************************************************************
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* Public Type Definitions
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****************************************************************************/
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#ifndef __ASSEMBLY__
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enum idtype_e
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{
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P_PID = 1,
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P_PGID = 2,
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P_ALL = 3
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};
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typedef enum idtype_e idtype_t;
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/****************************************************************************
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* Public Function Prototypes
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****************************************************************************/
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#undef EXTERN
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#if defined(__cplusplus)
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#define EXTERN extern "C"
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extern "C"
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{
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#else
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#define EXTERN extern
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#endif
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pid_t wait(FAR int *stat_loc);
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int waitid(idtype_t idtype, id_t id, FAR siginfo_t *info, int options);
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pid_t waitpid(pid_t pid, FAR int *stat_loc, int options);
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#undef EXTERN
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#if defined(__cplusplus)
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}
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#endif
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#endif /* __ASSEMBLY__ */
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#endif /* CONFIG_SCHED_WAITPID */
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#endif /* __INCLUDE_SYS_WAIT_H */
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