nuttx/nuttx-mirror
1
2
Fork 0
mirror of https://github.com/apache/nuttx.git synced 2025-01-13 08:38:38 +08:00
Code Issues Projects Releases Packages Wiki Activity Actions

libs/libc/signal: add killpg function

Browse source 
1. the killpg function can make all the
ltp/open_posix_testsuite/killpg testcaes passed
2. Nuttx do not support process group, so we use kill process instead
3. the implementation are referred to:
https://pubs.opengroup.org/onlinepubs/9699919799/functions/killpg.html

Signed-off-by: guoshichao <guoshichao@xiaomi.com>
This commit is contained in:
guoshichao 2023-06-07 15:23:11 +08:00 committed by Xiang Xiao
parent d94013837e
commit 037a6f5836
3 changed files with 71 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

1
include/signal.h
View file

@ -351,6 +351,7 @@ extern "C"
#endif
int kill(pid_t pid, int signo);
int killpg(pid_t pgrp, int signo);
int tgkill(pid_t pid, pid_t tid, int signo);
void psignal(int signum, FAR const char *message);
void psiginfo(FAR const siginfo_t *pinfo, FAR const char *message);

1
libs/libc/signal/Make.defs
View file

@ -25,6 +25,7 @@ CSRCS += sig_nandset.c sig_andset.c sig_orset.c sig_xorset.c
CSRCS += sig_isemptyset.c
CSRCS += sig_hold.c sig_ignore.c sig_ismember.c sig_pause.c sig_psignal.c
CSRCS += sig_raise.c sig_relse.c sig_set.c sig_signal.c sig_wait.c
CSRCS += sig_killpg.c
# Add the signal directory to the build

69
libs/libc/signal/sig_killpg.c Normal file
View file

@ -0,0 +1,69 @@
/****************************************************************************
* libs/libc/signal/sig_killpg.c
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership. The
* ASF licenses this file to you 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.
*
****************************************************************************/
/****************************************************************************
* Included Files
****************************************************************************/
#include <errno.h>
#include <signal.h>
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: killpg
*
* Description:
* The killpg() system call can be used to send any signal to process
* group. See kill() for further information as this is just a simple
* wrapper around the kill() function.
*
* Input Parameters:
* pgrp - The id of the process group to receive the signal.
* signo - The signal number to send. If 'signo' is zero, no signal is
* sent, but all error checking is performed.
*
* Returned Value:
* On success the signal was send and zero is returned. On error -1 is
* returned, and errno is set one of the following error numbers:
*
* EINVAL An invalid signal was specified.
* EPERM The thread does not have permission to send the
* signal to the target thread.
* ESRCH No thread could be found corresponding to that
* specified by the given thread ID
* ENOSYS Do not support sending signals to process groups.
*
****************************************************************************/
int killpg(pid_t pgrp, int signo)
{
if (pgrp <= CONFIG_SMP_NCPUS)
{
set_errno(EINVAL);
return ERROR;
}
/* Nuttx do not support process group, we use kill process instead */
return kill(pgrp, signo);
}