rpc: socket: Minor cleanups

- Add some debugging
- Make the loop dependent only on retries
- Make it explicit that connect(2) success exits the loop
- Invert the error checking logic

(cherry picked from commit f102c7146ed7f6e04af0ad3bce302476239f2502)

diff --git a/src/rpc/virnetsocket.c b/src/rpc/virnetsocket.c
index 5e5f1ab25e739a99d770d97888564762b274242e..fc8ce6c1232047b21ab3b15441bc2c1655dd0351 100644 (file)
--- a/src/rpc/virnetsocket.c
+++ b/src/rpc/virnetsocket.c
@@ -620,6 +620,9 @@ int virNetSocketNewConnectUNIX(const char *path,
     char *rundir = NULL;
     int ret = -1;
 
+    VIR_DEBUG("path=%s spawnDaemon=%d binary=%s", path, spawnDaemon,
+        NULLSTR(binary));
+
     memset(&localAddr, 0, sizeof(localAddr));
     memset(&remoteAddr, 0, sizeof(remoteAddr));
 
@@ -680,10 +683,15 @@ int virNetSocketNewConnectUNIX(const char *path,
     if (remoteAddr.data.un.sun_path[0] == '@')
         remoteAddr.data.un.sun_path[0] = '\0';
 
-    while (retries &&
-           connect(fd, &remoteAddr.data.sa, remoteAddr.len) < 0) {
-        if (!(spawnDaemon && (errno == ENOENT ||
-                              errno == ECONNREFUSED))) {
+    while (retries) {
+        if (connect(fd, &remoteAddr.data.sa, remoteAddr.len) == 0) {
+            VIR_DEBUG("connect() succeeded");
+            break;
+        }
+        VIR_DEBUG("connect() failed: retries=%d errno=%d", retries, errno);
+
+        if (!spawnDaemon ||
+            (errno != ENOENT && errno != ECONNREFUSED)) {
             virReportSystemError(errno, _("Failed to connect socket to '%s'"),
                                  path);
             goto cleanup;