#define _GNU_SOURCE in Cygwin?

Asked May 03 '17 at 05:25

Active May 03 '17 at 05:25

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I tried using -D_GNU_SOURCE when compiling but neither works, I am trying to use pthread_setaffinity_np and other mutithreading features but the compiler says it is out of scope. This is what I have:

#define _GNU_SOURCE
#include <sched.h>
int cpuAff(){ //set processor affinity
    cpu_set_t cpuset;
    CPU_ZERO(&cpuset);
    CPU_SET(0, &cpuset);
    pthread_setaffinity_np(threads[0], sizeof(cpu_set_t), &cpuset);
    pthread_setaffinity_np(threads[1], sizeof(cpu_set_t), &cpuset);
    pthread_setaffinity_np(threads[2], sizeof(cpu_set_t), &cpuset);
    pthread_setaffinity_np(threads[3], sizeof(cpu_set_t), &cpuset);
}

I am using cygwin on windows 10 if that is the problem? any body know a fix?

asked May 03 '17 at 05:25

Y. Yami

Nothing of this is present in the cygwin header tree. – n. m. could be an AI May 03 '17 at 06:12
Is there a way for me yo use these functions in cygwin? – Y. Yami May 03 '17 at 06:29
Same problem for me @Y.Yami – user2023370 Apr 09 '19 at 09:29
This is answered in this SO question: https://stackoverflow.com/questions/43771345/cpu-set-t-does-not-name-a-type-c – speed488 Oct 22 '19 at 19:16

#define _GNU_SOURCE in Cygwin?

0 Answers0