Add copy in daemon, and support for callbacks in daemon protocol

Original git commit by Alexander Larsson <alexl@redhat.com> at 1183547547 +0200

svn path=/trunk/; revision=622

1 files changed, 188 insertions, 0 deletions

diff --git a/daemon/gvfsjobcopy.c b/daemon/gvfsjobcopy.c
new file mode 100644
index 00000000..6cb6dd3b
--- /dev/null
+++ b/daemon/gvfsjobcopy.c
@@ -0,0 +1,188 @@
+#include <config.h>
+
+#include <unistd.h>
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <sys/un.h>
+
+#include <glib.h>
+#include <dbus/dbus.h>
+#include <glib/gi18n.h>
+#include "gvfsjobcopy.h"
+#include "gdbusutils.h"
+#include "gvfsdaemonprotocol.h"
+
+G_DEFINE_TYPE (GVfsJobCopy, g_vfs_job_copy, G_VFS_TYPE_JOB_DBUS);
+
+static void         run          (GVfsJob        *job);
+static gboolean     try          (GVfsJob        *job);
+static DBusMessage *create_reply (GVfsJob        *job,
+				  DBusConnection *connection,
+				  DBusMessage    *message);
+
+static void
+g_vfs_job_copy_finalize (GObject *object)
+{
+  GVfsJobCopy *job;
+
+  job = G_VFS_JOB_COPY (object);
+  
+  g_free (job->source);
+  g_free (job->destination);
+  g_free (job->callback_obj_path);
+  
+  if (G_OBJECT_CLASS (g_vfs_job_copy_parent_class)->finalize)
+    (*G_OBJECT_CLASS (g_vfs_job_copy_parent_class)->finalize) (object);
+}
+
+static void
+g_vfs_job_copy_class_init (GVfsJobCopyClass *klass)
+{
+  GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
+  GVfsJobClass *job_class = G_VFS_JOB_CLASS (klass);
+  GVfsJobDBusClass *job_dbus_class = G_VFS_JOB_DBUS_CLASS (klass);
+  
+  gobject_class->finalize = g_vfs_job_copy_finalize;
+  job_class->run = run;
+  job_class->try = try;
+  job_dbus_class->create_reply = create_reply;
+}
+
+static void
+g_vfs_job_copy_init (GVfsJobCopy *job)
+{
+}
+
+GVfsJob *
+g_vfs_job_copy_new (DBusConnection *connection,
+			DBusMessage *message,
+			GVfsBackend *backend)
+{
+  GVfsJobCopy *job;
+  DBusMessage *reply;
+  DBusError derror;
+  int path1_len, path2_len;
+  const char *path1_data, *path2_data, *callback_obj_path;
+  dbus_uint32_t flags;
+  
+  dbus_error_init (&derror);
+  if (!dbus_message_get_args (message, &derror, 
+			      DBUS_TYPE_ARRAY, DBUS_TYPE_BYTE,
+			      &path1_data, &path1_len,
+			      DBUS_TYPE_ARRAY, DBUS_TYPE_BYTE,
+			      &path2_data, &path2_len,
+                              DBUS_TYPE_UINT32, &flags,
+			      DBUS_TYPE_OBJECT_PATH, &callback_obj_path,
+			      0))
+    {
+      reply = dbus_message_new_error (message,
+				      derror.name,
+                                      derror.message);
+      dbus_error_free (&derror);
+
+      dbus_connection_send (connection, reply, NULL);
+      return NULL;
+    }
+
+  job = g_object_new (G_VFS_TYPE_JOB_COPY,
+		      "message", message,
+		      "connection", connection,
+		      NULL);
+
+  job->source = g_strndup (path1_data, path1_len);
+  job->destination = g_strndup (path2_data, path2_len);
+  job->backend = backend;
+  job->flags = flags;
+  if (strcmp (callback_obj_path, "/org/gtk/vfs/void") != 0)
+    job->callback_obj_path = g_strdup (callback_obj_path);
+  
+  return G_VFS_JOB (job);
+}
+
+static void
+progress_callback (goffset current_num_bytes,
+		   goffset total_num_bytes,
+		   gpointer user_data)
+{
+  GVfsJob *job = G_VFS_JOB (user_data);
+  GVfsJobDBus *dbus_job = G_VFS_JOB_DBUS (job);
+  GVfsJobCopy *op_job = G_VFS_JOB_COPY (job);
+  dbus_uint64_t current_dbus, total_dbus;
+  DBusMessage *message;
+
+  g_print ("progress_callback %d/%d\n", (int)current_num_bytes, (int)total_num_bytes);
+
+  if (op_job->callback_obj_path == NULL)
+    return;
+  
+  message =
+    dbus_message_new_method_call (dbus_message_get_sender (dbus_job->message),
+				  op_job->callback_obj_path,
+				  G_VFS_DBUS_PROGRESS_INTERFACE,
+				  G_VFS_DBUS_PROGRESS_OP_PROGRESS);
+  dbus_message_set_no_reply (message, TRUE);
+
+  current_dbus = current_num_bytes;
+  total_dbus = total_num_bytes;
+  dbus_message_append_args (message,
+			    DBUS_TYPE_UINT64, &current_dbus,
+			    DBUS_TYPE_UINT64, &total_dbus,
+			    0);
+
+  /* Queues reply (threadsafely), actually sends it in mainloop */
+  dbus_connection_send (dbus_job->connection, message, NULL);
+  dbus_message_unref (message);
+}
+
+static void
+run (GVfsJob *job)
+{
+  GVfsJobCopy *op_job = G_VFS_JOB_COPY (job);
+  GVfsBackendClass *class = G_VFS_BACKEND_GET_CLASS (op_job->backend);
+
+  if (class->copy == NULL)
+    {
+      g_vfs_job_failed (job, G_IO_ERROR, G_IO_ERROR_NOT_SUPPORTED,
+			_("Operation not supported by backend"));
+      return;
+    }
+  
+  class->copy (op_job->backend,
+	       op_job,
+	       op_job->source,
+	       op_job->destination,
+	       op_job->flags,
+	       progress_callback,
+	       job);
+}
+
+static gboolean
+try (GVfsJob *job)
+{
+  GVfsJobCopy *op_job = G_VFS_JOB_COPY (job);
+  GVfsBackendClass *class = G_VFS_BACKEND_GET_CLASS (op_job->backend);
+
+  if (class->try_copy == NULL)
+    return FALSE;
+  
+  return class->try_copy (op_job->backend,
+			  op_job,
+			  op_job->source,
+			  op_job->destination,
+			  op_job->flags,
+			  progress_callback,
+			  job);
+}
+
+/* Might be called on an i/o thread */
+static DBusMessage *
+create_reply (GVfsJob *job,
+	      DBusConnection *connection,
+	      DBusMessage *message)
+{
+  DBusMessage *reply;
+
+  reply = dbus_message_new_method_return (message);
+  
+  return reply;
+}