* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General
- * Public License along with this library; if not, write to the
- * Free Software Foundation, Inc., 59 Temple Place, Suite 330,
- * Boston, MA 02111-1307, USA.
+ * Public License along with this library; if not, see <http://www.gnu.org/licenses/>.
*
* Author: Vlad Grecescu <b100dian@gmail.com>
*
*/
-#define _WIN32_WINNT 0x0400
-
#include "config.h"
#include "gwin32directorymonitor.h"
-#include "giomodule.h"
#include <windows.h>
-G_DEFINE_TYPE_WITH_CODE (GWin32DirectoryMonitor, g_win32_directory_monitor, G_TYPE_LOCAL_DIRECTORY_MONITOR,
-g_io_extension_point_implement (G_LOCAL_DIRECTORY_MONITOR_EXTENSION_POINT_NAME,
+G_DEFINE_TYPE_WITH_CODE (GWin32DirectoryMonitor,
+ g_win32_directory_monitor,
+ G_TYPE_LOCAL_DIRECTORY_MONITOR,
+ g_io_extension_point_implement (G_LOCAL_DIRECTORY_MONITOR_EXTENSION_POINT_NAME,
g_define_type_id,
"readdirectorychanges",
20))
struct _GWin32DirectoryMonitorPrivate {
- OVERLAPPED overlapped;
- DWORD buffer_allocated_bytes;
- gchar* file_notify_buffer;
- DWORD buffer_filled_bytes;
- HANDLE hDirectory;
- /** needed in the APC where we only have this private struct */
- GFileMonitor * self;
+ OVERLAPPED overlapped;
+ DWORD buffer_allocated_bytes;
+ gchar *file_notify_buffer;
+ DWORD buffer_filled_bytes;
+ HANDLE hDirectory;
+ /* Needed in the APC where we only have this private struct */
+ GFileMonitor *self;
};
-static void g_win32_directory_monitor_finalize (GObject* base);
-static gboolean g_win32_directory_monitor_cancel (GFileMonitor* base);
-static GObject * g_win32_directory_monitor_constructor (GType type, guint n_construct_properties, GObjectConstructParam * construct_properties);
-
-static gboolean g_win32_directory_monitor_is_supported(void) {
- return TRUE;
-}
+static void g_win32_directory_monitor_finalize (GObject *base);
+static gboolean g_win32_directory_monitor_cancel (GFileMonitor *base);
-static void g_win32_directory_monitor_finalize (GObject* base) {
- GWin32DirectoryMonitor * self;
- self = G_WIN32_DIRECTORY_MONITOR (base);
+static GObject *g_win32_directory_monitor_constructor (GType type,
+ guint n_construct_properties,
+ GObjectConstructParam *construct_properties);
- g_free (self->priv->file_notify_buffer);
- g_free (self->priv);
-
- if (G_OBJECT_CLASS (g_win32_directory_monitor_parent_class)->finalize)
- (*G_OBJECT_CLASS (g_win32_directory_monitor_parent_class)->finalize) (base);
+static gboolean
+g_win32_directory_monitor_is_supported (void)
+{
+ return TRUE;
}
+static void
+g_win32_directory_monitor_finalize (GObject *base)
+{
+ GWin32DirectoryMonitor *self;
+ self = G_WIN32_DIRECTORY_MONITOR (base);
+
+ if (self->priv->hDirectory == INVALID_HANDLE_VALUE)
+ {
+ /* If we don't have a directory handle we can free
+ * self->priv->file_notify_buffer and self->priv here. The
+ * callback won't be called obviously any more (and presumably
+ * never has been called).
+ */
+ g_free (self->priv->file_notify_buffer);
+ self->priv->file_notify_buffer = NULL;
+ g_free (self->priv);
+ }
+ else
+ {
+ /* If we have a directory handle, the OVERLAPPED struct is
+ * passed once more to the callback as a result of the
+ * CloseHandle() done in the cancel method, so self->priv has to
+ * be kept around. The GWin32DirectoryMonitor object is
+ * disappearing, so can't leave a pointer to it in
+ * self->priv->self.
+ */
+ self->priv->self = NULL;
+ }
+
+ if (G_OBJECT_CLASS (g_win32_directory_monitor_parent_class)->finalize)
+ (*G_OBJECT_CLASS (g_win32_directory_monitor_parent_class)->finalize) (base);
+}
-static gboolean g_win32_directory_monitor_cancel (GFileMonitor* base) {
- GWin32DirectoryMonitor * self;
- self = G_WIN32_DIRECTORY_MONITOR (base);
-
- /* this triggers a last callback() with nBytes=0 */
- if (self->priv->hDirectory != INVALID_HANDLE_VALUE)
- CloseHandle (self->priv->hDirectory);
-
- if (G_FILE_MONITOR_CLASS (g_win32_directory_monitor_parent_class)->cancel)
- (*G_FILE_MONITOR_CLASS (g_win32_directory_monitor_parent_class)->cancel) (base);
- return TRUE;
+static gboolean
+g_win32_directory_monitor_cancel (GFileMonitor *base)
+{
+ GWin32DirectoryMonitor *self;
+ self = G_WIN32_DIRECTORY_MONITOR (base);
+
+ /* This triggers a last callback() with nBytes==0. */
+
+ /* Actually I am not so sure about that, it seems to trigger a last
+ * callback allright, but the way to recognize that it is the final
+ * one is not to check for nBytes==0, I think that was a
+ * misunderstanding.
+ */
+ if (self->priv->hDirectory != INVALID_HANDLE_VALUE)
+ CloseHandle (self->priv->hDirectory);
+
+ if (G_FILE_MONITOR_CLASS (g_win32_directory_monitor_parent_class)->cancel)
+ (*G_FILE_MONITOR_CLASS (g_win32_directory_monitor_parent_class)->cancel) (base);
+ return TRUE;
}
-void CALLBACK g_win32_directory_monitor_callback (DWORD error, DWORD nBytes, LPOVERLAPPED lpOverlapped)
+static void CALLBACK
+g_win32_directory_monitor_callback (DWORD error,
+ DWORD nBytes,
+ LPOVERLAPPED lpOverlapped)
{
- gulong offset;
- PFILE_NOTIFY_INFORMATION pfile_notify_walker;
- gulong file_name_len;
- gchar* file_name;
- GFile * file;
- GWin32DirectoryMonitorPrivate *priv = (GWin32DirectoryMonitorPrivate *) lpOverlapped;
-
- static GFileMonitorEvent events[] = {0,
- G_FILE_MONITOR_EVENT_CREATED, /* FILE_ACTION_ADDED */
- G_FILE_MONITOR_EVENT_DELETED, /* FILE_ACTION_REMOVED */
- G_FILE_MONITOR_EVENT_CHANGED, /* FILE_ACTION_MODIFIED */
- G_FILE_MONITOR_EVENT_DELETED, /* FILE_ACTION_RENAMED_OLD_NAME */
- G_FILE_MONITOR_EVENT_CREATED, /* FILE_ACTION_RENAMED_NEW_NAME */
- };
-
- if (!nBytes) /* monitor was cancelled/finalized */
- return;
-
- if (g_file_monitor_is_cancelled (G_FILE_MONITOR (priv->self)))
- return; /* and ReadDirectoryChangesW doesn't get called this time */
-
- offset = 0;
- do {
- pfile_notify_walker = (PFILE_NOTIFY_INFORMATION)(priv->file_notify_buffer + offset);
- offset += pfile_notify_walker->NextEntryOffset;
- file_name = g_utf16_to_utf8 (pfile_notify_walker->FileName, pfile_notify_walker->FileNameLength / sizeof(WCHAR), NULL, &file_name_len, NULL);
- file = g_file_new_for_path (file_name);
- g_file_monitor_emit_event (priv->self, file, NULL, events [pfile_notify_walker->Action]);
- g_object_unref (file);
- g_free (file_name);
- } while (pfile_notify_walker->NextEntryOffset);
-
- ReadDirectoryChangesW (priv->hDirectory, (gpointer)priv->file_notify_buffer, priv->buffer_allocated_bytes, FALSE,
- FILE_NOTIFY_CHANGE_FILE_NAME | FILE_NOTIFY_CHANGE_DIR_NAME | FILE_NOTIFY_CHANGE_ATTRIBUTES |
- FILE_NOTIFY_CHANGE_SIZE, &priv->buffer_filled_bytes, &priv->overlapped, g_win32_directory_monitor_callback);
+ gulong offset;
+ PFILE_NOTIFY_INFORMATION pfile_notify_walker;
+ glong file_name_len;
+ gchar *file_name;
+ gchar *path;
+ GFile *file;
+ GWin32DirectoryMonitorPrivate *priv = (GWin32DirectoryMonitorPrivate *) lpOverlapped;
+
+ static GFileMonitorEvent events[] =
+ {
+ 0,
+ G_FILE_MONITOR_EVENT_CREATED, /* FILE_ACTION_ADDED */
+ G_FILE_MONITOR_EVENT_DELETED, /* FILE_ACTION_REMOVED */
+ G_FILE_MONITOR_EVENT_CHANGED, /* FILE_ACTION_MODIFIED */
+ G_FILE_MONITOR_EVENT_DELETED, /* FILE_ACTION_RENAMED_OLD_NAME */
+ G_FILE_MONITOR_EVENT_CREATED, /* FILE_ACTION_RENAMED_NEW_NAME */
+ };
+
+ /* If priv->self is NULL the GWin32DirectoryMonitor object has been destroyed. */
+ if (priv->self == NULL ||
+ g_file_monitor_is_cancelled (priv->self) ||
+ priv->file_notify_buffer == NULL)
+ {
+ g_free (priv->file_notify_buffer);
+ g_free (priv);
+ return;
+ }
+
+ offset = 0;
+ do {
+ pfile_notify_walker = (PFILE_NOTIFY_INFORMATION)(priv->file_notify_buffer + offset);
+ if (pfile_notify_walker->Action > 0)
+ {
+ file_name = g_utf16_to_utf8 (pfile_notify_walker->FileName, pfile_notify_walker->FileNameLength / sizeof(WCHAR), NULL, &file_name_len, NULL);
+ path = g_build_filename(G_LOCAL_DIRECTORY_MONITOR (priv->self)->dirname, file_name, NULL);
+ file = g_file_new_for_path (path);
+ g_file_monitor_emit_event (priv->self, file, NULL, events [pfile_notify_walker->Action]);
+ g_object_unref (file);
+ g_free (path);
+ g_free (file_name);
+ }
+ offset += pfile_notify_walker->NextEntryOffset;
+ } while (pfile_notify_walker->NextEntryOffset);
+
+ ReadDirectoryChangesW (priv->hDirectory,
+ (gpointer)priv->file_notify_buffer,
+ priv->buffer_allocated_bytes,
+ FALSE,
+ FILE_NOTIFY_CHANGE_FILE_NAME |
+ FILE_NOTIFY_CHANGE_DIR_NAME |
+ FILE_NOTIFY_CHANGE_ATTRIBUTES |
+ FILE_NOTIFY_CHANGE_SIZE,
+ &priv->buffer_filled_bytes,
+ &priv->overlapped,
+ g_win32_directory_monitor_callback);
}
-static GObject * g_win32_directory_monitor_constructor (GType type, guint n_construct_properties, GObjectConstructParam * construct_properties) {
- GObject * obj;
- GWin32DirectoryMonitorClass * klass;
- GObjectClass * parent_class;
- GWin32DirectoryMonitor * self;
- wchar_t * wdirname;
- gboolean result;
-
- klass = G_WIN32_DIRECTORY_MONITOR_CLASS (g_type_class_peek (G_TYPE_WIN32_DIRECTORY_MONITOR));
- parent_class = G_OBJECT_CLASS (g_type_class_peek_parent (klass));
- obj = parent_class->constructor (type, n_construct_properties, construct_properties);
- self = G_WIN32_DIRECTORY_MONITOR (obj);
- wdirname = g_utf8_to_utf16 (G_LOCAL_DIRECTORY_MONITOR (obj)->dirname, -1, NULL, NULL, NULL);
-
- self->priv->hDirectory = CreateFileW (wdirname, FILE_LIST_DIRECTORY, FILE_SHARE_DELETE | FILE_SHARE_READ | FILE_SHARE_WRITE,
- NULL, OPEN_EXISTING, FILE_FLAG_BACKUP_SEMANTICS | FILE_FLAG_OVERLAPPED, NULL);
- g_free (wdirname);
- if (self->priv->hDirectory == INVALID_HANDLE_VALUE)
- {
- /* Ignore errors */
- return obj;
- }
-
- result = ReadDirectoryChangesW (self->priv->hDirectory, (gpointer)self->priv->file_notify_buffer, self->priv->buffer_allocated_bytes, FALSE,
- FILE_NOTIFY_CHANGE_FILE_NAME | FILE_NOTIFY_CHANGE_DIR_NAME | FILE_NOTIFY_CHANGE_ATTRIBUTES |
- FILE_NOTIFY_CHANGE_SIZE, &self->priv->buffer_filled_bytes, &self->priv->overlapped, g_win32_directory_monitor_callback);
- /* Ignore errors */
-
- return obj;
+static GObject *
+g_win32_directory_monitor_constructor (GType type,
+ guint n_construct_properties,
+ GObjectConstructParam *construct_properties) {
+ GObject *obj;
+ GWin32DirectoryMonitorClass *klass;
+ GObjectClass *parent_class;
+ GWin32DirectoryMonitor *self;
+ wchar_t *wdirname;
+
+ klass = G_WIN32_DIRECTORY_MONITOR_CLASS (g_type_class_peek (G_TYPE_WIN32_DIRECTORY_MONITOR));
+ parent_class = G_OBJECT_CLASS (g_type_class_peek_parent (klass));
+ obj = parent_class->constructor (type, n_construct_properties, construct_properties);
+ self = G_WIN32_DIRECTORY_MONITOR (obj);
+ wdirname = g_utf8_to_utf16 (G_LOCAL_DIRECTORY_MONITOR (obj)->dirname, -1, NULL, NULL, NULL);
+
+ self->priv->hDirectory = CreateFileW (wdirname,
+ FILE_LIST_DIRECTORY,
+ FILE_SHARE_DELETE | FILE_SHARE_READ | FILE_SHARE_WRITE,
+
+ NULL,
+ OPEN_EXISTING,
+ FILE_FLAG_BACKUP_SEMANTICS | FILE_FLAG_OVERLAPPED,
+ NULL);
+ g_free (wdirname);
+ if (self->priv->hDirectory == INVALID_HANDLE_VALUE)
+ {
+ /* Ignore errors */
+ return obj;
+ }
+
+ ReadDirectoryChangesW (self->priv->hDirectory,
+ (gpointer)self->priv->file_notify_buffer,
+ self->priv->buffer_allocated_bytes,
+ FALSE,
+ FILE_NOTIFY_CHANGE_FILE_NAME |
+ FILE_NOTIFY_CHANGE_DIR_NAME |
+ FILE_NOTIFY_CHANGE_ATTRIBUTES |
+ FILE_NOTIFY_CHANGE_SIZE,
+ &self->priv->buffer_filled_bytes,
+ &self->priv->overlapped,
+ g_win32_directory_monitor_callback);
+ /* Ignore errors */
+
+ return obj;
}
-static void g_win32_directory_monitor_class_init (GWin32DirectoryMonitorClass * klass) {
-
- g_win32_directory_monitor_parent_class = g_type_class_peek_parent (klass);
+static void
+g_win32_directory_monitor_class_init (GWin32DirectoryMonitorClass *klass)
+{
+ g_win32_directory_monitor_parent_class = g_type_class_peek_parent (klass);
- G_OBJECT_CLASS (klass)->constructor = g_win32_directory_monitor_constructor;
- G_OBJECT_CLASS (klass)->finalize = g_win32_directory_monitor_finalize;
- G_FILE_MONITOR_CLASS (klass)->cancel = g_win32_directory_monitor_cancel;
-
- G_LOCAL_DIRECTORY_MONITOR_CLASS (klass)->mount_notify = FALSE;
- G_LOCAL_DIRECTORY_MONITOR_CLASS (klass)->is_supported = g_win32_directory_monitor_is_supported;
+ G_OBJECT_CLASS (klass)->constructor = g_win32_directory_monitor_constructor;
+ G_OBJECT_CLASS (klass)->finalize = g_win32_directory_monitor_finalize;
+ G_FILE_MONITOR_CLASS (klass)->cancel = g_win32_directory_monitor_cancel;
+
+ G_LOCAL_DIRECTORY_MONITOR_CLASS (klass)->mount_notify = FALSE;
+ G_LOCAL_DIRECTORY_MONITOR_CLASS (klass)->is_supported = g_win32_directory_monitor_is_supported;
}
-static void g_win32_directory_monitor_init (GWin32DirectoryMonitor * self)
+static void
+g_win32_directory_monitor_init (GWin32DirectoryMonitor *self)
{
- self->priv = (GWin32DirectoryMonitorPrivate*)g_new0 (GWin32DirectoryMonitorPrivate, 1);
- g_assert (self->priv != 0);
+ self->priv = (GWin32DirectoryMonitorPrivate*)g_new0 (GWin32DirectoryMonitorPrivate, 1);
+ g_assert (self->priv != 0);
- self->priv->buffer_allocated_bytes = 32768;
- self->priv->file_notify_buffer = g_new0 (gchar, self->priv->buffer_allocated_bytes);
- g_assert (self->priv->file_notify_buffer);
+ self->priv->buffer_allocated_bytes = 32768;
+ self->priv->file_notify_buffer = g_new0 (gchar, self->priv->buffer_allocated_bytes);
+ g_assert (self->priv->file_notify_buffer);
- self->priv->self = G_FILE_MONITOR (self);
+ self->priv->self = G_FILE_MONITOR (self);
}
projects / platform / upstream / glib.git / blobdiff