Add proper per-file copyright notices/licenses and top-level license.

[bluesky.git] / nfs3 / rpc.c

diff --git a/nfs3/rpc.c b/nfs3/rpc.c
index 4dcd21e..3c6da98 100644 (file)
--- a/nfs3/rpc.c
+++ b/nfs3/rpc.c
@@ -3,7 +3,29 @@
  * Copyright (C) 2009  The Regents of the University of California
  * Written by Michael Vrable <mvrable@cs.ucsd.edu>
  *
- * TODO: Licensing
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
  */
 
 /* RPC handling: registration, marshalling and unmarshalling of messages.  For
@@ -28,6 +50,7 @@
 extern BlueSkyFS *fs;
 
 static int outstanding_rpcs = 0;
+static struct bluesky_stats *rpc_recv_stats, *rpc_send_stats;
 
 /* TCP port number to use for NFS protocol.  (Should be 2049.) */
 #define NFS_SERVICE_PORT 2051
@@ -148,6 +171,8 @@ async_rpc_send_failure(RPCRequest *req, enum accept_stat stat)
     async_rpc_flush(req->connection);
     g_mutex_unlock(req->connection->send_lock);
 
+    bluesky_profile_free(req->profile);
+
     if (req->args != NULL) {
         char buf[4];
         XDR xdr;
@@ -172,6 +197,7 @@ async_rpc_send_failure(RPCRequest *req, enum accept_stat stat)
         /* For UDP, a connection only exists for the duration of a single
          * message. */
         g_mutex_free(req->connection->send_lock);
+        g_string_free(req->connection->msgbuf, TRUE);
         g_string_free(req->connection->sendbuf, TRUE);
         g_free(req->connection);
     }
@@ -184,6 +210,9 @@ async_rpc_send_reply(RPCRequest *req, void *result)
 {
     bluesky_time_hires time_end;
 
+    bluesky_profile_add_event(req->profile,
+                              g_strdup("Start encoding NFS response"));
+
     GString *str = g_string_new("");
     XDR xdr_out;
     xdr_string_create(&xdr_out, str, XDR_ENCODE);
@@ -194,6 +223,7 @@ async_rpc_send_reply(RPCRequest *req, void *result)
     }
 
     g_atomic_int_add(&outstanding_rpcs, -1);
+    bluesky_stats_add(rpc_send_stats, str->len);
 
     struct rpc_reply header;
     header.xid = htonl(req->xid);
@@ -216,10 +246,17 @@ async_rpc_send_reply(RPCRequest *req, void *result)
 
     time_end = bluesky_now_hires();
 
+#if 0
     printf("RPC[%"PRIx32"]: time = %"PRId64" ns\n",
            req->xid, time_end - req->time_start);
+#endif
+
+    bluesky_profile_add_event(req->profile,
+                              g_strdup("NFS reply sent"));
+    bluesky_profile_print(req->profile);
 
     /* Clean up. */
+    bluesky_profile_free(req->profile);
     g_string_free(str, TRUE);
 
     if (req->args != NULL) {
@@ -246,6 +283,7 @@ async_rpc_send_reply(RPCRequest *req, void *result)
         /* For UDP, a connection only exists for the duration of a single
          * message. */
         g_mutex_free(req->connection->send_lock);
+        g_string_free(req->connection->msgbuf, TRUE);
         g_string_free(req->connection->sendbuf, TRUE);
         g_free(req->connection);
     }
@@ -313,11 +351,14 @@ nfs_program_3(RPCRequest *req)
     xdrproc_t _xdr_argument, _xdr_result;
     char *(*local)(char *, RPCRequest *);
 
+    bluesky_profile_set(req->profile);
+
     if (req->req_proc < sizeof(nfs_proc_names) / sizeof(const char *)) {
-        printf("Dispatched NFS RPC message type %s\n",
-               nfs_proc_names[req->req_proc]);
-    } else {
-        printf("Dispatched unknown NFS RPC message type %d\n", req->req_proc);
+        bluesky_profile_add_event(
+            req->profile,
+            g_strdup_printf("Dispatching NFS %s request",
+                            nfs_proc_names[req->req_proc])
+        );
     }
 
     switch (req->req_proc) {
@@ -495,13 +536,16 @@ static void sig_handler(int sig)
 
 static gboolean async_flushd(gpointer data)
 {
+#if 0
     int rpc_count = g_atomic_int_get(&outstanding_rpcs);
     if (rpc_count != 0) {
         g_print("Currently outstanding RPC requests: %d\n", rpc_count);
     }
+#endif
 
     if (fs_dump_requested) {
         bluesky_debug_dump(fs);
+        bluesky_stats_dump_all();
         fs_dump_requested = 0;
     }
 
@@ -562,6 +606,8 @@ static gboolean async_rpc_dispatch(RPCConnection *rpc)
     GString *msg = rpc->msgbuf;
     const char *buf = msg->str;
 
+    bluesky_stats_add(rpc_recv_stats, msg->len);
+
     if (msg->len < sizeof(struct rpc_call_header)) {
         fprintf(stderr, "Short RPC message: only %zd bytes!\n", msg->len);
         return FALSE;
@@ -583,7 +629,8 @@ static gboolean async_rpc_dispatch(RPCConnection *rpc)
 
     RPCRequest *req = g_new0(RPCRequest, 1);
     req->connection = rpc;
-    req->time_start = time_start;
+    req->profile = bluesky_profile_new();
+    bluesky_profile_add_event(req->profile, g_strdup("Receive NFS request"));
     req->xid = xid;
 
     if (ntohl(header->prog) != NFS_PROGRAM) {
@@ -854,6 +901,9 @@ void register_rpc()
 {
     SVCXPRT *transp;
 
+    rpc_recv_stats = bluesky_stats_new("NFS RPC Messages In");
+    rpc_send_stats = bluesky_stats_new("NFS RPC Messages Out");
+
     async_rpc_init();
 
     /* MOUNT protocol */