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

     1  #include "pthread_impl.h"
     2  #include <threads.h>
     3  
     4  int tss_set(tss_t k, void *x)
     5  {
     6  	struct pthread *self = __pthread_self();
     7  	/* Avoid unnecessary COW */
     8  	if (self->tsd[k] != x) {
     9  		self->tsd[k] = x;
    10  		self->tsd_used = 1;
    11  	}
    12  	return thrd_success;
    13  }