assuan: Reorganize waiting for socket.

* common/asshelp.c (wait_for_sock): New function, collecting
codepaths from...
(start_new_gpg_agent) here and...
(start_new_dirmngr) here.
--

This has no functional change, but makes it easier to make this
function more efficient.

GnuPG-bug-id: 3490
Signed-off-by: Daniel Kahn Gillmor <[email protected]>
(cherry picked from commit 0471ff9d3bf8d6b9a359f3c426d70d0935066907)

1 files changed, 30 insertions, 42 deletions

diff --git a/common/asshelp.c b/common/asshelp.c
index f3a92f9e5..68a41be7e 100644
--- a/common/asshelp.c
+++ b/common/asshelp.c
@@ -307,6 +307,32 @@ unlock_spawning (lock_spawn_t *lock, const char *name)
     }
 }
 
+static gpg_error_t
+wait_for_sock (int secs, const char *name, const char *sockname, int verbose, assuan_context_t ctx, int *did_success_msg)
+{
+  int i;
+  gpg_error_t err = 0;
+  for (i=0; i < secs; i++)
+    {
+      if (verbose)
+        log_info (_("waiting for the %s to come up ... (%ds)\n"),
+                  name, secs - i);
+      gnupg_sleep (1);
+      err = assuan_socket_connect (ctx, sockname, 0, 0);
+      if (!err)
+        {
+          if (verbose)
+            {
+              log_info (_("connection to %s established\n"),
+                        name);
+              *did_success_msg = 1;
+            }
+          break;
+        }
+    }
+  return err;
+}
+
 /* Try to connect to the agent via socket or start it if it is not
    running and AUTOSTART is set.  Handle the server's initial
    greeting.  Returns a new assuan context at R_CTX or an error
@@ -433,25 +459,8 @@ start_new_gpg_agent (assuan_context_t *r_ctx,
             log_error ("failed to start agent '%s': %s\n",
                        agent_program, gpg_strerror (err));
           else
-            {
-              for (i=0; i < SECS_TO_WAIT_FOR_AGENT; i++)
-                {
-                  if (verbose)
-                    log_info (_("waiting for the agent to come up ... (%ds)\n"),
-                              SECS_TO_WAIT_FOR_AGENT - i);
-                  gnupg_sleep (1);
-                  err = assuan_socket_connect (ctx, sockname, 0, 0);
-                  if (!err)
-                    {
-                      if (verbose)
-                        {
-                          log_info (_("connection to agent established\n"));
-                          did_success_msg = 1;
-                        }
-                      break;
-                    }
-                }
-            }
+            err = wait_for_sock (SECS_TO_WAIT_FOR_AGENT, "agent",
+                                 sockname, verbose, ctx, &did_success_msg);
         }
 
       unlock_spawning (&lock, "agent");
@@ -584,29 +593,8 @@ start_new_dirmngr (assuan_context_t *r_ctx,
             log_error ("failed to start the dirmngr '%s': %s\n",
                        dirmngr_program, gpg_strerror (err));
           else
-            {
-              int i;
-
-              for (i=0; i < SECS_TO_WAIT_FOR_DIRMNGR; i++)
-                {
-                  if (verbose)
-                    log_info (_("waiting for the dirmngr "
-                                "to come up ... (%ds)\n"),
-                              SECS_TO_WAIT_FOR_DIRMNGR - i);
-                  gnupg_sleep (1);
-                  err = assuan_socket_connect (ctx, sockname, 0, 0);
-                  if (!err)
-                    {
-                      if (verbose)
-                        {
-                          log_info (_("connection to the dirmngr"
-                                      " established\n"));
-                          did_success_msg = 1;
-                        }
-                      break;
-                    }
-                }
-            }
+            err = wait_for_sock (SECS_TO_WAIT_FOR_DIRMNGR, "dirmngr",
+                                 sockname, verbose, ctx, &did_success_msg);
         }
 
       unlock_spawning (&lock, "dirmngr");