github.com/afumu/libc@v0.0.6/musl/src/thread/pthread_condattr_setclock.c (about)

     1  #include "pthread_impl.h"
     2  
     3  int pthread_condattr_setclock(pthread_condattr_t *a, clockid_t clk)
     4  {
     5  	if (clk < 0 || clk-2U < 2) return EINVAL;
     6  	a->__attr &= 0x80000000;
     7  	a->__attr |= clk;
     8  	return 0;
     9  }