在Linux上SetThreadPriority函数等效（pthreads的） [英] Equivalent of SetThreadPriority on Linux (pthreads)

问题描述

鉴于code以下位

，我在想，code相当于位会是怎样在linux假设pthreads的，甚至使用Boost.Thread API。

 的#include＆LT;＆WINDOWS.H GT;诠释的main（）
{
   SetThreadPriority函数（GetCurrentThread（），THREAD_PRIORITY_HIGHEST）;
   返回0;
}
 

解决方案

等同于 SetThreadPriority函数在linux将 pthread_setschedprio（的pthread_t线程，INT优先级）。

检查手册页。

编辑：这里的样品code等同的：

 的#include＆LT; pthreads.h中＆GT;诠释的main（）
{
    的pthread_t THID = pthread_self（）;
    pthread_attr_t thAttr;
    INT政策= 0;
    INT max_prio_for_policy = 0;    pthread_attr_init（安培; thAttr）;
    pthread_attr_getschedpolicy（安培; thAttr，与策略）;
    max_prio_for_policy = sched_get_priority_max（政策）;
    pthread_setschedprio（THID，max_prio_for_policy）;
    pthread_attr_destroy（安培; thAttr）;    返回0;
}
 

本示例是这是SCHED_OTHER缺省的调度策略。

编辑：线程属性必须在使用之前必须初始化

Given the following bit of code, I was wondering what the equivalent bit of code would be in linux assuming pthreads or even using the Boost.Thread API.

#include <windows.h>

int main()
{
   SetThreadPriority(GetCurrentThread(),THREAD_PRIORITY_HIGHEST);
   return 0;
}

解决方案

The equivalent to SetThreadPriority in linux would be pthread_setschedprio(pthread_t thread, int priority).

Check the man page.

EDIT: here's the sample code equivalent:

#include <pthread.h>

int main()
{
    pthread_t thId = pthread_self();
    pthread_attr_t thAttr;
    int policy = 0;
    int max_prio_for_policy = 0;

    pthread_attr_init(&thAttr);
    pthread_attr_getschedpolicy(&thAttr, &policy);
    max_prio_for_policy = sched_get_priority_max(policy);


    pthread_setschedprio(thId, max_prio_for_policy);
    pthread_attr_destroy(&thAttr);

    return 0;
}

This sample is for the default scheduling policy which is SCHED_OTHER.

EDIT: thread attribute must be initialized before usage.

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