/*
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* Copyright 2015 Rockchip Electronics Co. LTD
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* 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,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#define MODULE_TAG "mpp_thread"
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#include <string.h>
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#include "mpp_log.h"
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#include "mpp_common.h"
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#include "mpp_thread.h"
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#define MPP_THREAD_DBG_FUNCTION (0x00000001)
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static RK_U32 thread_debug = 0;
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#define thread_dbg(flag, fmt, ...) _mpp_dbg(thread_debug, flag, fmt, ## __VA_ARGS__)
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MppThread::MppThread(MppThreadFunc func, void *ctx, const char *name)
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: mFunction(func),
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mContext(ctx)
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{
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mStatus[THREAD_WORK] = MPP_THREAD_UNINITED;
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mStatus[THREAD_INPUT] = MPP_THREAD_RUNNING;
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mStatus[THREAD_OUTPUT] = MPP_THREAD_RUNNING;
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mStatus[THREAD_CONTROL] = MPP_THREAD_RUNNING;
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if (name)
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strncpy(mName, name, sizeof(mName) - 1);
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else
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snprintf(mName, sizeof(mName) - 1, "mpp_thread");
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}
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MppThreadStatus MppThread::get_status(MppThreadSignal id)
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{
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return mStatus[id];
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}
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void MppThread::set_status(MppThreadStatus status, MppThreadSignal id)
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{
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mStatus[id] = status;
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}
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void MppThread::dump_status()
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{
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mpp_log("thread %s status: %d %d %d %d\n", mName,
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mStatus[THREAD_WORK], mStatus[THREAD_INPUT], mStatus[THREAD_OUTPUT],
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mStatus[THREAD_CONTROL]);
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}
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void MppThread::start()
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{
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pthread_attr_t attr;
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pthread_attr_init(&attr);
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pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_JOINABLE);
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if (MPP_THREAD_UNINITED == get_status()) {
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// NOTE: set status here first to avoid unexpected loop quit racing condition
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set_status(MPP_THREAD_RUNNING);
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if (0 == pthread_create(&mThread, &attr, mFunction, mContext)) {
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#ifndef ARMLINUX
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RK_S32 ret = pthread_setname_np(mThread, mName);
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if (ret)
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mpp_err("thread %p setname %s failed\n", mFunction, mName);
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#endif
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thread_dbg(MPP_THREAD_DBG_FUNCTION, "thread %s %p context %p create success\n",
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mName, mFunction, mContext);
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} else
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set_status(MPP_THREAD_UNINITED);
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}
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pthread_attr_destroy(&attr);
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}
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void MppThread::stop()
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{
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if (MPP_THREAD_UNINITED != get_status()) {
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lock();
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set_status(MPP_THREAD_STOPPING);
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thread_dbg(MPP_THREAD_DBG_FUNCTION,
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"MPP_THREAD_STOPPING status set mThread %p", this);
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signal();
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unlock();
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void *dummy;
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pthread_join(mThread, &dummy);
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thread_dbg(MPP_THREAD_DBG_FUNCTION,
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"thread %s %p context %p destroy success\n",
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mName, mFunction, mContext);
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set_status(MPP_THREAD_UNINITED);
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}
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}
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#if defined(_WIN32) && !defined(__MINGW32CE__)
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//
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// Usage: SetThreadName ((DWORD)-1, "MainThread");
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//
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#include <windows.h>
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const DWORD MS_VC_EXCEPTION = 0x406D1388;
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#pragma pack(push,8)
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typedef struct tagTHREADNAME_INFO {
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DWORD dwType; // Must be 0x1000.
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LPCSTR szName; // Pointer to name (in user addr space).
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DWORD dwThreadID; // Thread ID (-1=caller thread).
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DWORD dwFlags; // Reserved for future use, must be zero.
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} THREADNAME_INFO;
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#pragma pack(pop)
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void SetThreadName(DWORD dwThreadID, const char* threadName)
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{
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THREADNAME_INFO info;
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info.dwType = 0x1000;
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info.szName = threadName;
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info.dwThreadID = dwThreadID;
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info.dwFlags = 0;
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#pragma warning(push)
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#pragma warning(disable: 6320 6322)
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__try {
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RaiseException(MS_VC_EXCEPTION, 0, sizeof(info) / sizeof(ULONG_PTR), (ULONG_PTR*)&info);
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} __except (EXCEPTION_EXECUTE_HANDLER) {
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}
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#pragma warning(pop)
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}
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#ifndef ARMLINUX
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/*
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* add pthread_setname_np for windows
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*/
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int pthread_setname_np(pthread_t thread, const char *name)
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{
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DWORD dwThreadID = pthread_getw32threadid_np(thread);
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SetThreadName(dwThreadID, name);
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return 0;
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}
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#endif
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#endif
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