X-Git-Url: http://git.vrable.net/?a=blobdiff_plain;f=nfs3%2Frpc.c;h=2342b79d514ad9b864040f8617aa590f09c4d857;hb=966a43ffed492d387e0d75e56c3984d9001c15b1;hp=e1cb4d135b2397c3591cfd9d2763b8ed836a0172;hpb=d8cf6ebaaa04e7dece0633f6242fe67632015d23;p=bluesky.git

diff --git a/nfs3/rpc.c b/nfs3/rpc.c
index e1cb4d1..2342b79 100644
--- a/nfs3/rpc.c
+++ b/nfs3/rpc.c
@@ -27,6 +27,8 @@
 #include "bluesky.h"
 extern BlueSkyFS *fs;
 
+static int outstanding_rpcs = 0;
+
 /* TCP port number to use for NFS protocol.  (Should be 2049.) */
 #define NFS_SERVICE_PORT 2051
 
@@ -128,6 +130,8 @@ async_rpc_send_failure(RPCRequest *req, enum accept_stat stat)
 {
     struct rpc_fail_reply header;
 
+    g_atomic_int_add(&outstanding_rpcs, -1);
+
     header.xid = htonl(req->xid);
     header.type = htonl(1);     /* REPLY */
     header.stat = htonl(MSG_ACCEPTED);
@@ -189,6 +193,8 @@ async_rpc_send_reply(RPCRequest *req, void *result)
         return;
     }
 
+    g_atomic_int_add(&outstanding_rpcs, -1);
+
     struct rpc_reply header;
     header.xid = htonl(req->xid);
     header.type = htonl(1);     /* REPLY */
@@ -210,8 +216,10 @@ 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
 
     /* Clean up. */
     g_string_free(str, TRUE);
@@ -307,12 +315,14 @@ nfs_program_3(RPCRequest *req)
     xdrproc_t _xdr_argument, _xdr_result;
     char *(*local)(char *, RPCRequest *);
 
+#if 0
     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);
     }
+#endif
 
     switch (req->req_proc) {
     case NFSPROC3_NULL:
@@ -489,6 +499,13 @@ 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);
         fs_dump_requested = 0;
@@ -508,7 +525,8 @@ static async_rpc_init()
     main_context = g_main_context_new();
     main_loop = g_main_loop_new(main_context, FALSE);
 
-    rpc_thread_pool = g_thread_pool_new(async_rpc_task, NULL, -1, FALSE, NULL);
+    rpc_thread_pool = g_thread_pool_new(async_rpc_task, NULL,
+                                        bluesky_max_threads, FALSE, NULL);
 
     /* Arrange to have the cache writeback code run every five seconds. */
     GSource *source = g_timeout_source_new_seconds(5);
@@ -567,6 +585,8 @@ static gboolean async_rpc_dispatch(RPCConnection *rpc)
         return FALSE;
     }
 
+    g_atomic_int_add(&outstanding_rpcs, 1);
+
     RPCRequest *req = g_new0(RPCRequest, 1);
     req->connection = rpc;
     req->time_start = time_start;
@@ -587,18 +607,24 @@ static gboolean async_rpc_dispatch(RPCConnection *rpc)
     buf += sizeof(struct rpc_call_header);
     for (i = 0; i < 2; i++) {
         struct rpc_auth *auth = (struct rpc_auth *)buf;
-        if (buf - msg->str + sizeof(struct rpc_auth) > msg->len)
+        if (buf - msg->str + sizeof(struct rpc_auth) > msg->len) {
+            g_atomic_int_add(&outstanding_rpcs, -1);
             return FALSE;
+        }
 
         gsize authsize = ntohl(auth->len) + sizeof(struct rpc_auth);
-        if (authsize > MAX_RPC_MSGSIZE)
+        if (authsize > MAX_RPC_MSGSIZE) {
+            g_atomic_int_add(&outstanding_rpcs, -1);
             return FALSE;
+        }
 
         buf += authsize;
     }
 
-    if (buf - msg->str > msg->len)
+    if (buf - msg->str > msg->len) {
+        g_atomic_int_add(&outstanding_rpcs, -1);
         return FALSE;
+    }
 
     req->raw_args = msg;
     req->raw_args_header_bytes = buf - msg->str;