ngx_shmtx_unlock 38 core/ngx_shmtx.h #define ngx_shmtx_unlock(mtx) (void) ngx_atomic_cmp_set((mtx)->lock, ngx_pid, 0) ngx_shmtx_unlock 90 core/ngx_shmtx.h ngx_shmtx_unlock(ngx_shmtx_t *mtx)