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view examples/d-box/prio.cpp @ 456:aa3f38d8a9b6 prerelease
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author | Giulio Moro <giuliomoro@yahoo.it> |
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date | Mon, 20 Jun 2016 01:10:16 +0100 |
parents | dbeed520b014 |
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/* * prio.cpp * * Created on: May 14, 2014 * Author: Victor Zappi */ #include "prio.h" using namespace std; //----------------------------------------------------------------------------------------------------------- // set wanted real-time priority to this thread //----------------------------------------------------------------------------------------------------------- void set_realtime_priority(int order) { int ret; // We'll operate on the currently running thread. pthread_t this_thread = pthread_self(); // struct sched_param is used to store the scheduling priority struct sched_param params; // We'll set the priority to the maximum. params.sched_priority = sched_get_priority_max(SCHED_FIFO) - order; // Attempt to set thread real-time priority to the SCHED_FIFO policy ret = pthread_setschedparam(this_thread, SCHED_FIFO, ¶ms); if (ret != 0) { // Print the error cout << "Unsuccessful in setting thread realtime prio" << endl; return; } // Now verify the change in thread priority int policy = 0; ret = pthread_getschedparam(this_thread, &policy, ¶ms); if (ret != 0) { cout << "Couldn't retrieve real-time scheduling parameters" << endl; return; } // Check the correct policy was applied if(policy != SCHED_FIFO) { cout << "Scheduling is NOT SCHED_FIFO!" << endl; } } //-----------------------------------------------------------------------------------------------------------