fixes #45 expose aio to applications

While here we added a test for the aio stuff, and cleaned up some dead
code for the old fd notifications.  There were a few improvements to
shorten & clean code elsewhere, such as short-circuiting task wait
when the task has no callback.

The legacy sendmsg() and recvmsg() APIs are still in the socket core
until we convert the device code to use the aios.

1 files changed, 0 insertions, 9 deletions

diff --git a/src/protocol/reqrep/req.c b/src/protocol/reqrep/req.c
index 81abd306..1ab49f3e 100644
--- a/src/protocol/reqrep/req.c
+++ b/src/protocol/reqrep/req.c
@@ -28,7 +28,6 @@ static void req_pipe_fini(void *);
 
 // A req_sock is our per-socket protocol private structure.
 struct req_sock {
-	nni_sock *   sock;
 	nni_msgq *   uwq;
 	nni_msgq *   urq;
 	nni_duration retry;
@@ -90,7 +89,6 @@ req_sock_init(void **sp, nni_sock *sock)
 	// this is "semi random" start for request IDs.
 	s->nextid = nni_random();
 	s->retry  = NNI_SECOND * 60;
-	s->sock   = sock;
 	s->reqmsg = NULL;
 	s->raw    = 0;
 	s->wantw  = 0;
@@ -512,7 +510,6 @@ req_sock_send(void *arg, nni_aio *aio)
 	nni_mtx_lock(&s->mtx);
 	if (s->raw) {
 		nni_mtx_unlock(&s->mtx);
-		nni_sock_send_pending(s->sock);
 		nni_msgq_aio_put(s->uwq, aio);
 		return;
 	}
@@ -536,11 +533,6 @@ req_sock_send(void *arg, nni_aio *aio)
 		return;
 	}
 
-	// XXX: I think we should just not do this... and leave the
-	// socket "permanently writeable".  This does screw up all the
-	// backpressure.
-	// nni_sock_send_pending(s->sock);
-
 	// If another message is there, this cancels it.
 	if (s->reqmsg != NULL) {
 		nni_msg_free(s->reqmsg);
@@ -619,7 +611,6 @@ req_sock_recv(void *arg, nni_aio *aio)
 		}
 	}
 	nni_mtx_unlock(&s->mtx);
-	nni_sock_recv_pending(s->sock);
 	nni_msgq_aio_get(s->urq, aio);
 }