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-rw-r--r--src/thread/pthread_setspecific.c18
1 files changed, 18 insertions, 0 deletions
diff --git a/src/thread/pthread_setspecific.c b/src/thread/pthread_setspecific.c
new file mode 100644
index 00000000..171cef41
--- /dev/null
+++ b/src/thread/pthread_setspecific.c
@@ -0,0 +1,18 @@
+#include "pthread_impl.h"
+
+int pthread_setspecific(pthread_key_t k, const void *x)
+{
+ struct pthread *self = pthread_self();
+ /* Handle the case of the main thread */
+ if (!self->tsd) {
+ if (!x) return 0;
+ if (!(self->tsd = calloc(sizeof(void *), PTHREAD_KEYS_MAX)))
+ return ENOMEM;
+ }
+ /* Avoid unnecessary COW */
+ if (self->tsd[k] != x) {
+ self->tsd[k] = (void *)x;
+ self->tsd_used = 1;
+ }
+ return 0;
+}