pkt-nio release pktc request when exiting

deps/oblib/src/rpc/obrpc/ob_poc_rpc_server.cpp

@@ -305,6 +305,8 @@ int dispatch_to_ob_listener(int accept_fd) {
 int tranlate_to_ob_error(int err) {
   int ret = OB_SUCCESS;
   if (PNIO_OK == err) {
+  } else if (PNIO_STOPPED == err) {
+    ret = OB_RPC_SEND_ERROR;
   } else if (PNIO_LISTEN_ERROR == err) {
     ret = OB_SERVER_LISTEN_ERROR;
   } else if (ENOMEM == err || -ENOMEM == err) {

deps/oblib/src/rpc/pnio/interface/group.c

@@ -347,7 +347,12 @@ PN_API int pn_send(uint64_t gtid, struct sockaddr_in* addr, const char* buf, int
   if (addr->sin_addr.s_addr == 0 || htons(addr->sin_port) == 0) {
     err = -EINVAL;
     rk_warn("invalid sin_addr: %x:%d", addr->sin_addr.s_addr, addr->sin_port);
-  }
+  } else if (expire_us < 0) {
+    err = -EINVAL;
+    rk_error("invalid rpc timeout: %ld, it might be that the up-layer rpc timeout is too large, categ_id=%d", expire_us, categ_id);
+  } else if (LOAD(&pn->is_stop_)) {
+    err = PNIO_STOPPED;
+  } else {
     pktc_req_t* r = pn_create_pktc_req(pn, gen_pkt_id(), dest, buf, sz, categ_id, expire_us, cb, arg);
     if (NULL == r) {
       err = ENOMEM;
@@ -357,6 +362,7 @@ PN_API int pn_send(uint64_t gtid, struct sockaddr_in* addr, const char* buf, int
       }
       err = pktc_post(&pn->pktc, r);
     }
+  }
   return err;
 }
 
@@ -378,6 +384,29 @@ PN_API void pn_wait(uint64_t gid)
   }
 }
 
+void pn_release(pn_comm_t* pn_comm)
+{
+  if (NULL == pn_comm) {
+    // do nothing
+    rk_warn("unexpected argument");
+  } else {
+    pn_t* pn = (typeof(pn))pn_comm;
+    // empty pktc->req_queue
+    link_t* l = NULL;
+    pktc_t* pktc = &pn->pktc;
+    while((l = sc_queue_pop(&pktc->req_queue))) {
+      pktc_req_t* req = structof(l, pktc_req_t, link);
+      pktc_post_io(pktc, req);
+    }
+    // destroy pktc socket
+    dlink_for(&pktc->sk_list, p) {
+      pktc_sk_t* s = structof(p, pktc_sk_t, list_link);
+      rk_info("sock destroy: sock=%p, connection=%s", s, T2S(sock_fd, s->fd));
+      sock_destroy((sock_t*)s);
+    }
+  }
+}
+
 typedef struct pn_resp_ctx_t
 {
   pn_t* pn;

deps/oblib/src/rpc/pnio/interface/group.h

@@ -67,9 +67,11 @@ PN_API void pn_stop(uint64_t gid);
 PN_API void pn_wait(uint64_t gid);
 extern int64_t pnio_keepalive_timeout;
 pn_comm_t* get_current_pnio();
+void pn_release(pn_comm_t* pn_comm);
 
 #define PNIO_OK                     0
 #define PNIO_ERROR                  (-1)
+#define PNIO_STOPPED                (-45)
 #define PNIO_DISCONNECT             (-46)
 #define PNIO_TIMEOUT                (-47)
 #define PNIO_CONNECT_FAIL           (-49)

deps/oblib/src/rpc/pnio/io/eloop.c

@@ -129,5 +129,6 @@ int eloop_run(eloop_t* ep) {
       last_time = cur_time_us;
     }
   }
+  pn_release(pn);
   return 0;
 }