tapset/http_request: log listen address and PID of connection

It is helpful to know the address of the listener on the server
which accepted the client socket.  Additionally, the PID,FD combination
should be be safely unique for any point in time.

1 files changed, 7 insertions, 5 deletions

diff --git a/tapset/http_request.stp b/tapset/http_request.stp
index 2f1514a..5df785c 100644
--- a/tapset/http_request.stp
+++ b/tapset/http_request.stp
@@ -7,14 +7,15 @@ probe process("cmogstored").mark("http_accepted") {
         fd = $arg1;
         host = user_string($arg2);
         serv = user_string($arg3);
+        listen = user_string($arg4);
         host_serv = sprintf("%s%s", host, serv);
-        printf("% 8d accepted %s\n", fd, host_serv);
+        printf("% 6d % 6d accepted %s on %s\n", pid(), fd, host_serv, listen);
         cmogstored_http_addr[pid(),fd] = host_serv;
 }
 
 probe process("cmogstored").function("http_close") {
         fd = @cast($mfd, "struct mog_fd")->fd;
-        printf("% 8d closing\n", fd);
+        printf("% 6d % 6d closing\n", pid(), fd);
         delete cmogstored_http_addr[pid(),fd];
 }
 
@@ -31,10 +32,11 @@ probe process("cmogstored").function("http_process_client") {
         diff = gettimeofday_us() - starttime;
 
         is_pipelined = cmogstored_http_pipelined[pid(),fd];
-        printf("% 8d http_process_client time %ldus (pipelined:%s)\n",
-               fd, diff, is_pipelined ? "true" : "false");
+        printf("% 6d % 6d http_process_client time %ldus (pipelined:%s)\n",
+                pid(), fd, diff, is_pipelined ? "true" : "false");
 }
 
 probe process("cmogstored").mark("write_buffered") {
-        printf("% 8d blocked with %lu bytes to write\n", $fd, $len);
+        printf("% 6d % 6d blocked with %lu bytes to write\n",
+                pid(), $fd, $len);
 }