2f34c5033e
When passing a NULL status to android_fork_execvp the return status will now be the return value of the child if it exited properly, otherwise a non-0 value will be returned. Change-Id: I13309c61b37b6b3f9d5507f7d6484e7b6baaf8d0
60 lines
2.3 KiB
C
60 lines
2.3 KiB
C
/* system/core/include/logwrap/logwrap.h
|
|
*
|
|
* Copyright 2013, The Android Open Source Project
|
|
*
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
|
* you may not use this file except in compliance with the License.
|
|
* You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
* See the License for the specific language governing permissions and
|
|
* limitations under the License.
|
|
*/
|
|
|
|
#ifndef __LIBS_LOGWRAP_H
|
|
#define __LIBS_LOGWRAP_H
|
|
|
|
#include <stdbool.h>
|
|
|
|
__BEGIN_DECLS
|
|
|
|
/*
|
|
* Run a command while logging its stdout and stderr
|
|
*
|
|
* WARNING: while this function is running it will clear all SIGCHLD handlers
|
|
* if you rely on SIGCHLD in the caller there is a chance zombies will be
|
|
* created if you're not calling waitpid after calling this. This function will
|
|
* log a warning when it clears SIGCHLD for processes other than the child it
|
|
* created.
|
|
*
|
|
* Arguments:
|
|
* argc: the number of elements in argv
|
|
* argv: an array of strings containing the command to be executed and its
|
|
* arguments as separate strings. argv does not need to be
|
|
* NULL-terminated
|
|
* status: the equivalent child status as populated by wait(status). This
|
|
* value is only valid when logwrap successfully completes. If NULL
|
|
* the return value of the child will be the function's return value.
|
|
* ignore_int_quit: set to true if you want to completely ignore SIGINT and
|
|
* SIGQUIT while logwrap is running. This may force the end-user to
|
|
* send a signal twice to signal the caller (once for the child, and
|
|
* once for the caller)
|
|
* logwrap: when true, log messages from the child
|
|
*
|
|
* Return value:
|
|
* 0 when logwrap successfully run the child process and captured its status
|
|
* -1 when an internal error occurred
|
|
* -ECHILD if status is NULL and the child didn't exit properly
|
|
* the return value of the child if it exited properly and status is NULL
|
|
*
|
|
*/
|
|
int android_fork_execvp(int argc, char* argv[], int *status, bool ignore_int_quit,
|
|
bool logwrap);
|
|
|
|
__END_DECLS
|
|
|
|
#endif /* __LIBS_LOGWRAP_H */
|