1#include "pthread_impl.h"
2#include "syscall.h"
3
4static volatile int check_robust_result = -1;
5
6int pthread_mutexattr_setrobust(pthread_mutexattr_t *a, int robust)
7{
8#ifdef __wasilibc_unmodified_upstream
9 if (robust > 1U) return EINVAL;
10 if (robust) {
11 int r = check_robust_result;
12 if (r < 0) {
13 void *p;
14 size_t l;
15 r = -__syscall(SYS_get_robust_list, 0, &p, &l);
16 a_store(&check_robust_result, r);
17 }
18 if (r) return r;
19 a->__attr |= 4;
20 return 0;
21 }
22 a->__attr &= ~4;
23 return 0;
24#else
25 if (robust) return EINVAL;
26 return 0;
27#endif
28}