C timers and threads again
来源： https://stackoverflow.com/questions/4708760/c-timers-and-threads-again
pthreads
C , how to create thread using pthread_create function
来源： https://stackoverflow.com/questions/6990888/c-how-to-create-thread-using-pthread-create-function
which is better POSIX Message Queue or PIPES for producer consumer problem
问题 I have a producer Thread as well as consumer thread where producer runs faster than consumer i need to transfer data from producer and process it on consumer, producer will give an array of 1000 elements every second and consumer should wait till it has 10 sets of arrays and will process it (consumer runs every 10 seconds) i could see that we can modify POSIX message queue to input an array of 1000 elements double array which is a better method to transfer real data, POXIS message queue or
which is better POSIX Message Queue or PIPES for producer consumer problem
问题 I have a producer Thread as well as consumer thread where producer runs faster than consumer i need to transfer data from producer and process it on consumer, producer will give an array of 1000 elements every second and consumer should wait till it has 10 sets of arrays and will process it (consumer runs every 10 seconds) i could see that we can modify POSIX message queue to input an array of 1000 elements double array which is a better method to transfer real data, POXIS message queue or
which is better POSIX Message Queue or PIPES for producer consumer problem
问题 I have a producer Thread as well as consumer thread where producer runs faster than consumer i need to transfer data from producer and process it on consumer, producer will give an array of 1000 elements every second and consumer should wait till it has 10 sets of arrays and will process it (consumer runs every 10 seconds) i could see that we can modify POSIX message queue to input an array of 1000 elements double array which is a better method to transfer real data, POXIS message queue or
Printing the priority of the main
问题 I'm wondering if there is a way to print the priority of the main. In this question I asked how to print the deafult priority of a thread; now I'm very curious to know if it's possible to do the same for the main. EDIT: my goal is to get the priority of the unique process I created (I'm using pthread library to create threads inside the int main block). The process should not be a normal process, but a real time process, so i cannot use the getpriority function. It can be used only for normal
CentOS7.6 源码安装 libevent-2.1.8-stable
获取libevent libevent官网：https://libevent.org/ GitHub-libevent项目链接：https://github.com/libevent/libevent 要获取libevent源码包，可以在上面两个网址链接上获取到。本人下载的是libevent-2.1.8-stable版本，源码包文件名为：libevent-2.1.8-stable.tar.gz。 《注意》安装需要有root权限，最好是在root用户下进行，如果不是root用户，执行编译安装操作时需要在命令前加上 sudo 。本人是在 root用户下进行操作的。 安装步骤 一、解压缩源码包。 tar -xzvf libevent-2.1.8-stable.tar.gz 二、进入 libevent-2.1.8-stable 目录，执行 configure 配置脚本 1、查看 configure 脚本的使用帮助及其选项，可以执行命令： ./configure --help 查看。 如果直接执行：./configure，那么默认安装路径是/usr/local，对应的头文件、可执行文件和库文件分别对应的目录是：' /usr/local/include '、'/usr/local/bin'，'/usr/local/lib'。 2、我本人设置了自定义安装路径，执行命令如下： .
对于linux中线程id的讨论
在LINUX系统中，POSIX threads库提供了pthread_t来标识一个线程，通过pthread_self()可以得到，如下： #include <iostream> #include <pthread.h> using namespace std; void* thread_func(void*) { //pthread_t other_thread_id = pthread_self(); //cout << "other_thread_id=" << other_thread_id << endl; return NULL; } int main(int argc, char *argv[]) { pthread_t t1, t2; pthread_create(&t1, NULL, thread_func, NULL); cout << t1 << endl; pthread_join(t1, NULL); //pthread_create(&t2, NULL, thread_func, NULL); //cout << t2 << endl; //pthread_join(t2, NULL); return 0; } 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 得到结果:
How to stop the thread execution in C++
问题 I created one thread in my main program, thread execution has to stop once the main program will terminate. I am using reader.join(); to terminate the thread execution. But it is not stopping the execution. I tried with below-mentioned code, I am using thread.join(); function, but it is failed to terminate a thread. And after the main program also my thread is kept executing. #include <algorithm> #include <array> #include <atomic> #include <mutex> #include <queue> #include <cstdint> #include
How to stop the thread execution in C++
问题 I created one thread in my main program, thread execution has to stop once the main program will terminate. I am using reader.join(); to terminate the thread execution. But it is not stopping the execution. I tried with below-mentioned code, I am using thread.join(); function, but it is failed to terminate a thread. And after the main program also my thread is kept executing. #include <algorithm> #include <array> #include <atomic> #include <mutex> #include <queue> #include <cstdint> #include