static volatile int aio_fd_cnt;
volatile int __aio_fut;
+static size_t io_thread_stack_size;
+
+#define MAX(a,b) ((a)>(b) ? (a) : (b))
+
static struct aio_queue *__aio_get_queue(int fd, int need)
{
if (fd < 0) {
pthread_rwlock_unlock(&maplock);
if (fcntl(fd, F_GETFD) < 0) return 0;
pthread_rwlock_wrlock(&maplock);
+ if (!io_thread_stack_size) {
+ unsigned long val = __getauxval(AT_MINSIGSTKSZ);
+ io_thread_stack_size = MAX(MINSIGSTKSZ+2048, val+512);
+ }
if (!map) map = calloc(sizeof *map, (-1U/2+1)>>24);
if (!map) goto out;
if (!map[a]) map[a] = calloc(sizeof **map, 256);
return 0;
}
-static size_t io_thread_stack_size = MINSIGSTKSZ+2048;
-static pthread_once_t init_stack_size_once;
-
-static void init_stack_size()
-{
- unsigned long val = __getauxval(AT_MINSIGSTKSZ);
- if (val > MINSIGSTKSZ) io_thread_stack_size = val + 512;
-}
-
static int submit(struct aiocb *cb, int op)
{
int ret = 0;
else
pthread_attr_init(&a);
} else {
- pthread_once(&init_stack_size_once, init_stack_size);
pthread_attr_init(&a);
pthread_attr_setstacksize(&a, io_thread_stack_size);
pthread_attr_setguardsize(&a, 0);