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sched/task: Implement gettid(2) syscall

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See the reference here:
https://man7.org/linux/man-pages/man2/gettid.2.html

Change-Id: Ia814d0ccc3b20d8dfc36c809682ddf6e21811d20
Signed-off-by: chao.an <anchao@xiaomi.com>
This commit is contained in:
chao.an 2020-09-14 19:57:24 +08:00 committed by Xiang Xiao
parent 9241725312
commit bf8446e235
4 changed files with 52 additions and 1 deletions
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1
include/unistd.h
View file

@ -308,6 +308,7 @@ EXTERN int optopt; /* Unrecognized option character */
pid_t vfork(void);
pid_t getpid(void);
pid_t gettid(void);
void _exit(int status) noreturn_function;
unsigned int sleep(unsigned int seconds);
int usleep(useconds_t usec);

2
sched/task/Make.defs
View file

@ -37,7 +37,7 @@ CSRCS += task_create.c task_init.c task_setup.c task_activate.c
CSRCS += task_start.c task_delete.c task_exit.c task_exithook.c
CSRCS += task_getgroup.c task_getpid.c task_prctl.c task_recover.c
CSRCS += task_restart.c task_spawnparms.c task_setcancelstate.c
CSRCS += task_cancelpt.c task_terminate.c exit.c
CSRCS += task_cancelpt.c task_terminate.c task_gettid.c exit.c
ifeq ($(CONFIG_ARCH_HAVE_VFORK),y)
ifeq ($(CONFIG_SCHED_WAITPID),y)

49
sched/task/task_gettid.c Normal file
View file

@ -0,0 +1,49 @@
/****************************************************************************
* sched/task/task_gettid.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 <sys/types.h>
#include <unistd.h>
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: gettid
*
* Description:
* Get the thread ID of the currently executing thread.
*
* Input parameters:
* None
*
* Returned Value:
* On success, returns the thread ID of the calling process.
*
****************************************************************************/
pid_t gettid(void)
{
return getpid();
}

1
syscall/syscall.csv
View file

@ -35,6 +35,7 @@
"getitimer","sys/time.h","!defined(CONFIG_DISABLE_POSIX_TIMERS)","int","int","FAR struct itimerval *"
"getpeername","sys/socket.h","defined(CONFIG_NET)","int","int","FAR struct sockaddr *","FAR socklen_t *"
"getpid","unistd.h","","pid_t"
"gettid","unistd.h","","pid_t"
"getrandom","sys/random.h","defined(CONFIG_CRYPTO_RANDOM_POOL)","void","FAR void *","size_t"
"getsockname","sys/socket.h","defined(CONFIG_NET)","int","int","FAR struct sockaddr *","FAR socklen_t *"
"getsockopt","sys/socket.h","defined(CONFIG_NET)","int","int","int","int","FAR void *","FAR socklen_t *"

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