From dc37504ae94313bf395ab6b9efa8dde4d150d627 Mon Sep 17 00:00:00 2001
From: torben
Date: Fri, 15 Jan 2016 17:46:14 +0100
Subject: Fix.

---
 dev-tools/qemuDebuggingPatch/qemu-nbd.c | 116 ++++++++++++++++++--------------
 1 file changed, 66 insertions(+), 50 deletions(-)

(limited to 'dev-tools/qemuDebuggingPatch')

diff --git a/dev-tools/qemuDebuggingPatch/qemu-nbd.c b/dev-tools/qemuDebuggingPatch/qemu-nbd.c
index 3af28a07..ce0043d4 100644
--- a/dev-tools/qemuDebuggingPatch/qemu-nbd.c
+++ b/dev-tools/qemuDebuggingPatch/qemu-nbd.c
@@ -244,64 +244,80 @@ static void *nbd_client_thread(void *arg)
     pthread_t show_parts_thread;
     Error *local_error = NULL;
 
+    // changed
+    while(1) {
+    // --
+        sock = socket_connect(saddr, &local_error, NULL, NULL);
+        if (sock < 0) {
+            error_report_err(local_error);
+            goto out;
+        }
 
-    sock = socket_connect(saddr, &local_error, NULL, NULL);
-    if (sock < 0) {
-        error_report_err(local_error);
-        goto out;
-    }
-
-    ret = nbd_receive_negotiate(sock, NULL, &nbdflags,
-                                &size, &local_error);
-    if (ret < 0) {
-        if (local_error) {
-            fprintf(stderr, "%s\n", error_get_pretty(local_error));
-            error_free(local_error);
+        ret = nbd_receive_negotiate(sock, NULL, &nbdflags,
+                                    &size, &local_error);
+        if (ret < 0) {
+            if (local_error) {
+                fprintf(stderr, "%s\n", error_get_pretty(local_error));
+                error_free(local_error);
+            }
+            goto out_socket;
         }
-        goto out_socket;
-    }
 
-    fd = open(device, O_RDWR);
-    if (fd < 0) {
-        /* Linux-only, we can use %m in printf.  */
-        fprintf(stderr, "Failed to open %s: %m\n", device);
-        goto out_socket;
-    }
+        fd = open(device, O_RDWR);
+        if (fd < 0) {
+            /* Linux-only, we can use %m in printf.  */
+            fprintf(stderr, "Failed to open %s: %m\n", device);
+            goto out_socket;
+        }
 
-    ret = nbd_init(fd, sock, nbdflags, size);
-    if (ret < 0) {
-        fprintf(stderr, "------------------------\nJAU: nbd_client_thread -> trigger out_fd caused by nbd_init PID: %d\n-------------------\n", getpid());
-        goto out_fd;
-    }
+        ret = nbd_init(fd, sock, nbdflags, size);
+        if (ret < 0) {
+            fprintf(stderr, "------------------------\nJAU: nbd_client_thread -> trigger out_fd caused by nbd_init PID: %d\n-------------------\n", getpid());
+            goto out_fd;
+        }
 
-    /* update partition table */
-    pthread_create(&show_parts_thread, NULL, show_parts, device);
+        /* update partition table */
+        pthread_create(&show_parts_thread, NULL, show_parts, device);
 
-    if (verbose) {
-        fprintf(stderr, "NBD device %s is now connected to %s\n",
-                device, srcpath);
-    } else {
-        /* Close stderr so that the qemu-nbd process exits.  */
-        dup2(STDOUT_FILENO, STDERR_FILENO);
-    }
+        if (verbose) {
+            fprintf(stderr, "NBD device %s is now connected to %s\n",
+                    device, srcpath);
+        } else {
+            /* Close stderr so that the qemu-nbd process exits.  */
+            dup2(STDOUT_FILENO, STDERR_FILENO);
+        }
 
-    // Changed
-    pid_t pid;
-    pid = fork();
-    if (pid == 0) {
-        fprintf(stderr, "------------------------\nJAU: nbd_client -> custom fork sleep started PID: %d\n-------------------\n", getpid());
-        sleep(10);
-        int a = chdir("/sysroot/");
-        fprintf(stderr, "------------------------\nJAU: nbd_client -> custom fork sleep finished chdir returned %d PID: %d\n-------------------\n", a, getpid());
-        exit(0);
-    }
-    // --
-    ret = nbd_client(fd);
-    if (ret) {
-        fprintf(stderr, "------------------------\nJAU: nbd_client_thread -> trigger out_fd caused by nbd_client PID: %d\n-------------------\n", getpid());
-        goto out_fd;
+        /* Changed
+        pid_t pid;
+        pid = fork();
+        if (pid == 0) {
+            fprintf(stderr, "------------------------\nJAU: nbd_client -> custom fork sleep started PID: %d\n-------------------\n", getpid());
+            sleep(10);
+            int a = chdir("/sysroot/");
+            fprintf(stderr, "------------------------\nJAU: nbd_client -> custom fork sleep finished chdir returned %d PID: %d\n-------------------\n", a, getpid());
+            exit(0);
+        }
+        */
+        ret = nbd_client(fd);
+        // changed
+        if (errno == ETIMEDOUT) {
+            fprintf(stderr, "------------------------\nJAU: nbd_client_thread -> trigger out_fd caused by nbd_client -> BUT Ignored and starting reconnect! PID: %d\n-------------------\n", getpid());
+            close(fd);
+            continue;
+        }
+        //
+        if (ret) {
+            goto out_fd;
+        // changed
+        } else {
+            close(fd);
+            break;
+        }
+        //
+        close(fd);
+    // changed
     }
-    close(fd);
+    //--
     kill(getpid(), SIGTERM);
     fprintf(stderr, "------------------------\nJAU: nbd_client_thread -> STOP PID: %d\n-------------------\n", getpid());
     return (void *) EXIT_SUCCESS;
-- 
cgit v1.2.3-55-g7522