* 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: Alexander Larsson <alexl@redhat.com>
*/
#include "config.h"
+
+#ifdef __linux__
+#include <sys/ioctl.h>
+#include <errno.h>
+/* See linux.git/fs/btrfs/ioctl.h */
+#define BTRFS_IOCTL_MAGIC 0x94
+#define BTRFS_IOC_CLONE _IOW(BTRFS_IOCTL_MAGIC, 9, int)
+#endif
+
#ifdef HAVE_SPLICE
#include <sys/stat.h>
#include <unistd.h>
#include <fcntl.h>
#include <errno.h>
#endif
+
#include <string.h>
#include <sys/types.h>
-#ifdef HAVE_PWD_H
-#include <pwd.h>
-#endif
+
#include "gfile.h"
+#include "glib/gstdio.h"
+#ifdef G_OS_UNIX
+#include "glib-unix.h"
+#endif
#include "gvfs.h"
#include "gtask.h"
#include "gfileattribute-priv.h"
#include "gfileoutputstream.h"
#include "glocalfileoutputstream.h"
#include "glocalfileiostream.h"
+#include "glocalfile.h"
#include "gcancellable.h"
#include "gasyncresult.h"
#include "gioerror.h"
* (see #GInputStream and #GOutputStream).
*
* To construct a #GFile, you can use:
- * <simplelist>
- * <member>g_file_new_for_path() if you have a path.</member>
- * <member>g_file_new_for_uri() if you have a URI.</member>
- * <member>g_file_new_for_commandline_arg() for a command line argument.</member>
- * <member>g_file_new_tmp() to create a temporary file from a template.</member>
- * <member>g_file_parse_name() from a UTF-8 string gotten from g_file_get_parse_name().</member>
- * </simplelist>
+ * - g_file_new_for_path() if you have a path.
+ * - g_file_new_for_uri() if you have a URI.
+ * - g_file_new_for_commandline_arg() for a command line argument.
+ * - g_file_new_tmp() to create a temporary file from a template.
+ * - g_file_parse_name() from a UTF-8 string gotten from g_file_get_parse_name().
*
* One way to think of a #GFile is as an abstraction of a pathname. For
* normal files the system pathname is what is stored internally, but as
* Some #GFile operations do not have synchronous analogs, as they may
* take a very long time to finish, and blocking may leave an application
* unusable. Notable cases include:
- * <simplelist>
- * <member>g_file_mount_mountable() to mount a mountable file.</member>
- * <member>g_file_unmount_mountable_with_operation() to unmount a mountable file.</member>
- * <member>g_file_eject_mountable_with_operation() to eject a mountable file.</member>
- * </simplelist>
+ * - g_file_mount_mountable() to mount a mountable file.
+ * - g_file_unmount_mountable_with_operation() to unmount a mountable file.
+ * - g_file_eject_mountable_with_operation() to eject a mountable file.
+ *
+ * ## Entity Tags # {#gfile-etag}
*
- * <para id="gfile-etag"><indexterm><primary>entity tag</primary></indexterm>
* One notable feature of #GFiles are entity tags, or "etags" for
* short. Entity tags are somewhat like a more abstract version of the
- * traditional mtime, and can be used to quickly determine if the file has
- * been modified from the version on the file system. See the HTTP 1.1
- * <ulink url="http://www.w3.org/Protocols/rfc2616/rfc2616-sec14.html">specification</ulink>
+ * traditional mtime, and can be used to quickly determine if the file
+ * has been modified from the version on the file system. See the
+ * HTTP 1.1
+ * [specification](http://www.w3.org/Protocols/rfc2616/rfc2616-sec14.html)
* for HTTP Etag headers, which are a very similar concept.
- * </para>
- **/
+ */
static void g_file_real_query_info_async (GFile *file,
const char *attributes,
static gboolean g_file_real_delete_finish (GFile *file,
GAsyncResult *res,
GError **error);
+static void g_file_real_trash_async (GFile *file,
+ int io_priority,
+ GCancellable *cancellable,
+ GAsyncReadyCallback callback,
+ gpointer user_data);
+static gboolean g_file_real_trash_finish (GFile *file,
+ GAsyncResult *res,
+ GError **error);
+static void g_file_real_make_directory_async (GFile *file,
+ int io_priority,
+ GCancellable *cancellable,
+ GAsyncReadyCallback callback,
+ gpointer user_data);
+static gboolean g_file_real_make_directory_finish (GFile *file,
+ GAsyncResult *res,
+ GError **error);
static void g_file_real_open_readwrite_async (GFile *file,
int io_priority,
GCancellable *cancellable,
GAsyncResult *res,
GError **error);
+static gboolean g_file_real_measure_disk_usage (GFile *file,
+ GFileMeasureFlags flags,
+ GCancellable *cancellable,
+ GFileMeasureProgressCallback progress_callback,
+ gpointer progress_data,
+ guint64 *disk_usage,
+ guint64 *num_dirs,
+ guint64 *num_files,
+ GError **error);
+static void g_file_real_measure_disk_usage_async (GFile *file,
+ GFileMeasureFlags flags,
+ gint io_priority,
+ GCancellable *cancellable,
+ GFileMeasureProgressCallback progress_callback,
+ gpointer progress_data,
+ GAsyncReadyCallback callback,
+ gpointer user_data);
+static gboolean g_file_real_measure_disk_usage_finish (GFile *file,
+ GAsyncResult *result,
+ guint64 *disk_usage,
+ guint64 *num_dirs,
+ guint64 *num_files,
+ GError **error);
+
typedef GFileIface GFileInterface;
G_DEFINE_INTERFACE (GFile, g_file, G_TYPE_OBJECT)
iface->replace_finish = g_file_real_replace_finish;
iface->delete_file_async = g_file_real_delete_async;
iface->delete_file_finish = g_file_real_delete_finish;
+ iface->trash_async = g_file_real_trash_async;
+ iface->trash_finish = g_file_real_trash_finish;
+ iface->make_directory_async = g_file_real_make_directory_async;
+ iface->make_directory_finish = g_file_real_make_directory_finish;
iface->open_readwrite_async = g_file_real_open_readwrite_async;
iface->open_readwrite_finish = g_file_real_open_readwrite_finish;
iface->create_readwrite_async = g_file_real_create_readwrite_async;
iface->set_attributes_from_info = g_file_real_set_attributes_from_info;
iface->copy_async = g_file_real_copy_async;
iface->copy_finish = g_file_real_copy_finish;
+ iface->measure_disk_usage = g_file_real_measure_disk_usage;
+ iface->measure_disk_usage_async = g_file_real_measure_disk_usage_async;
+ iface->measure_disk_usage_finish = g_file_real_measure_disk_usage_finish;
}
*
* Gets the URI scheme for a #GFile.
* RFC 3986 decodes the scheme as:
- * <programlisting>
+ * |[
* URI = scheme ":" hier-part [ "?" query ] [ "#" fragment ]
- * </programlisting>
+ * ]|
* Common schemes include "file", "http", "ftp", etc.
*
* This call does no blocking I/O.
*
* This call does no blocking I/O.
*
- * Returns: string containing the #GFile's base name, or %NULL
- * if given #GFile is invalid. The returned string should be
+ * Returns: (nullable): string containing the #GFile's base name, or
+ * %NULL if given #GFile is invalid. The returned string should be
* freed with g_free() when no longer needed.
*/
char *
*
* This call does no blocking I/O.
*
- * Returns: string containing the #GFile's path, or %NULL if
- * no such path exists. The returned string should be
- * freed with g_free() when no longer needed.
+ * Returns: (nullable): string containing the #GFile's path, or %NULL
+ * if no such path exists. The returned string should be freed
+ * with g_free() when no longer needed.
*/
char *
g_file_get_path (GFile *file)
* @file1: the first #GFile
* @file2: the second #GFile
*
- * Checks equality of two given #GFiles.
+ * Checks if the two given #GFiles refer to the same file.
*
* Note that two #GFiles that differ can still refer to the same
* file on the filesystem due to various forms of filename
* This call does no blocking I/O.
*
* Returns: %TRUE if @file1 and @file2 are equal.
- * %FALSE if either is not a #GFile.
*/
gboolean
g_file_equal (GFile *file1,
g_return_val_if_fail (G_IS_FILE (file1), FALSE);
g_return_val_if_fail (G_IS_FILE (file2), FALSE);
+ if (file1 == file2)
+ return TRUE;
+
if (G_TYPE_FROM_INSTANCE (file1) != G_TYPE_FROM_INSTANCE (file2))
return FALSE;
*
* This call does no blocking I/O.
*
- * Returns: (transfer full): a #GFile structure to the
- * parent of the given #GFile or %NULL if there is
- * no parent. Free the returned object with g_object_unref().
+ * Returns: (nullable) (transfer full): a #GFile structure to the
+ * parent of the given #GFile or %NULL if there is no parent. Free
+ * the returned object with g_object_unref().
*/
GFile *
g_file_get_parent (GFile *file)
* so a path like /foo is not considered a prefix of /foobar, only
* of /foo/bar.
*
+ * A #GFile is not a prefix of itself. If you want to check for
+ * equality, use g_file_equal().
+ *
* This call does no I/O, as it works purely on names. As such it can
* sometimes return %FALSE even if @file is inside a @prefix (from a
* filesystem point of view), because the prefix of @file is an alias
*
* This call does no blocking I/O.
*
- * Returns: string with the relative path from @descendant
- * to @parent, or %NULL if @descendant doesn't have @parent
- * as prefix. The returned string should be freed with g_free()
- * when no longer needed.
+ * Returns: (nullable): string with the relative path from @descendant
+ * to @parent, or %NULL if @descendant doesn't have @parent as
+ * prefix. The returned string should be freed with g_free() when
+ * no longer needed.
*/
char *
g_file_get_relative_path (GFile *parent,
* @file: input #GFile
* @attributes: an attribute query string
* @flags: a set of #GFileQueryInfoFlags
- * @io_priority: the <link linkend="io-priority">I/O priority</link>
- * of the request
+ * @io_priority: the [I/O priority][io-priority] of the request
* @cancellable: (allow-none): optional #GCancellable object,
* %NULL to ignore
* @callback: (scope async): a #GAsyncReadyCallback to call when the
* @file: input #GFile
* @attributes: an attribute query string
* @flags: a set of #GFileQueryInfoFlags
- * @io_priority: the <link linkend="io-priority">I/O priority</link>
- * of the request
+ * @io_priority: the [I/O priority][io-priority] of the request
* @cancellable: (allow-none): optional #GCancellable object,
* %NULL to ignore
* @callback: (scope async): a #GAsyncReadyCallback to call when the
* g_file_query_filesystem_info_async:
* @file: input #GFile
* @attributes: an attribute query string
- * @io_priority: the <link linkend="io-priority">I/O priority</link>
- * of the request
+ * @io_priority: the [I/O priority][io-priority] of the request
* @cancellable: (allow-none): optional #GCancellable object,
* %NULL to ignore
* @callback: (scope async): a #GAsyncReadyCallback to call
/**
* g_file_find_enclosing_mount_async:
* @file: a #GFile
- * @io_priority: the <link linkend="io-priority">I/O priority</link>
- * of the request
+ * @io_priority: the [I/O priority][io-priority] of the request
* @cancellable: (allow-none): optional #GCancellable object,
* %NULL to ignore
* @callback: (scope async): a #GAsyncReadyCallback to call
/**
* g_file_replace:
* @file: input #GFile
- * @etag: (allow-none): an optional <link linkend="gfile-etag">entity tag</link>
+ * @etag: (allow-none): an optional [entity tag][gfile-etag]
* for the current #GFile, or #NULL to ignore
* @make_backup: %TRUE if a backup should be created
* @flags: a set of #GFileCreateFlags
* operation was cancelled, the error %G_IO_ERROR_CANCELLED will be
* returned.
*
- * If you pass in a non-%NULL @etag value, then this value is
- * compared to the current entity tag of the file, and if they differ
- * an %G_IO_ERROR_WRONG_ETAG error is returned. This generally means
- * that the file has been changed since you last read it. You can get
- * the new etag from g_file_output_stream_get_etag() after you've
- * finished writing and closed the #GFileOutputStream. When you load
- * a new file you can use g_file_input_stream_query_info() to get
- * the etag of the file.
+ * If you pass in a non-%NULL @etag value and @file already exists, then
+ * this value is compared to the current entity tag of the file, and if
+ * they differ an %G_IO_ERROR_WRONG_ETAG error is returned. This
+ * generally means that the file has been changed since you last read
+ * it. You can get the new etag from g_file_output_stream_get_etag()
+ * after you've finished writing and closed the #GFileOutputStream. When
+ * you load a new file you can use g_file_input_stream_query_info() to
+ * get the etag of the file.
*
* If @make_backup is %TRUE, this function will attempt to make a
* backup of the current file before overwriting it. If this fails
/**
* g_file_replace_readwrite:
* @file: a #GFile
- * @etag: (allow-none): an optional <link linkend="gfile-etag">entity tag</link>
+ * @etag: (allow-none): an optional [entity tag][gfile-etag]
* for the current #GFile, or #NULL to ignore
* @make_backup: %TRUE if a backup should be created
* @flags: a set of #GFileCreateFlags
/**
* g_file_read_async:
* @file: input #GFile
- * @io_priority: the <link linkend="io-priority">I/O priority</link>
- * of the request
+ * @io_priority: the [I/O priority][io-priority] of the request
* @cancellable: (allow-none): optional #GCancellable object,
* %NULL to ignore
* @callback: (scope async): a #GAsyncReadyCallback to call
* g_file_append_to_async:
* @file: input #GFile
* @flags: a set of #GFileCreateFlags
- * @io_priority: the <link linkend="io-priority">I/O priority</link>
- * of the request
+ * @io_priority: the [I/O priority][io-priority] of the request
* @cancellable: (allow-none): optional #GCancellable object,
* %NULL to ignore
* @callback: (scope async): a #GAsyncReadyCallback to call
* g_file_create_async:
* @file: input #GFile
* @flags: a set of #GFileCreateFlags
- * @io_priority: the <link linkend="io-priority">I/O priority</link>
- * of the request
+ * @io_priority: the [I/O priority][io-priority] of the request
* @cancellable: (allow-none): optional #GCancellable object,
* %NULL to ignore
* @callback: (scope async): a #GAsyncReadyCallback to call
/**
* g_file_replace_async:
* @file: input #GFile
- * @etag: (allow-none): an <link linkend="gfile-etag">entity tag</link>
- * for the current #GFile, or NULL to ignore
+ * @etag: (allow-none): an [entity tag][gfile-etag] for the current #GFile,
+ * or %NULL to ignore
* @make_backup: %TRUE if a backup should be created
* @flags: a set of #GFileCreateFlags
- * @io_priority: the <link linkend="io-priority">I/O priority</link>
- * of the request
+ * @io_priority: the [I/O priority][io-priority] of the request
* @cancellable: (allow-none): optional #GCancellable object,
* %NULL to ignore
* @callback: (scope async): a #GAsyncReadyCallback to call
/**
* g_file_open_readwrite_async
* @file: input #GFile
- * @io_priority: the <link linkend="io-priority">I/O priority</link>
- * of the request
+ * @io_priority: the [I/O priority][io-priority] of the request
* @cancellable: (allow-none): optional #GCancellable object,
* %NULL to ignore
* @callback: (scope async): a #GAsyncReadyCallback to call
* g_file_create_readwrite_async:
* @file: input #GFile
* @flags: a set of #GFileCreateFlags
- * @io_priority: the <link linkend="io-priority">I/O priority</link>
- * of the request
+ * @io_priority: the [I/O priority][io-priority] of the request
* @cancellable: (allow-none): optional #GCancellable object,
* %NULL to ignore
* @callback: (scope async): a #GAsyncReadyCallback to call
/**
* g_file_replace_readwrite_async:
* @file: input #GFile
- * @etag: (allow-none): an <link linkend="gfile-etag">entity tag</link>
- * for the current #GFile, or NULL to ignore
+ * @etag: (allow-none): an [entity tag][gfile-etag] for the current #GFile,
+ * or %NULL to ignore
* @make_backup: %TRUE if a backup should be created
* @flags: a set of #GFileCreateFlags
- * @io_priority: the <link linkend="io-priority">I/O priority</link>
- * of the request
+ * @io_priority: the [I/O priority][io-priority] of the request
* @cancellable: (allow-none): optional #GCancellable object,
* %NULL to ignore
* @callback: (scope async): a #GAsyncReadyCallback to call
if (!tried_delete && (flags & G_FILE_COPY_OVERWRITE) &&
my_error->domain == G_IO_ERROR && my_error->code == G_IO_ERROR_EXISTS)
{
- g_error_free (my_error);
+ g_clear_error (&my_error);
/* Don't overwrite if the destination is a directory */
info = g_file_query_info (destination, G_FILE_ATTRIBUTE_STANDARD_TYPE,
return TRUE;
}
-static GInputStream *
+static GFileInputStream *
open_source_for_copy (GFile *source,
GFile *destination,
GFileCopyFlags flags,
GError **error)
{
GError *my_error;
- GInputStream *in;
+ GFileInputStream *ret;
GFileInfo *info;
GFileType file_type;
my_error = NULL;
- in = (GInputStream *)g_file_read (source, cancellable, &my_error);
- if (in != NULL)
- return in;
+ ret = g_file_read (source, cancellable, &my_error);
+ if (ret != NULL)
+ return ret;
/* There was an error opening the source, try to set a good error for it: */
if (my_error->domain == G_IO_ERROR && my_error->code == G_IO_ERROR_IS_DIRECTORY)
static gboolean
should_copy (GFileAttributeInfo *info,
- gboolean as_move,
+ gboolean copy_all_attributes,
gboolean skip_perms)
{
if (skip_perms && strcmp(info->name, "unix::mode") == 0)
return FALSE;
- if (as_move)
+ if (copy_all_attributes)
return info->flags & G_FILE_ATTRIBUTE_INFO_COPY_WHEN_MOVED;
return info->flags & G_FILE_ATTRIBUTE_INFO_COPY_WITH_FILE;
}
-static char *
-build_attribute_list_for_copy (GFileAttributeInfoList *attributes,
- GFileAttributeInfoList *namespaces,
- gboolean as_move,
- gboolean skip_perms)
-{
- GString *s;
+static gboolean
+build_attribute_list_for_copy (GFile *file,
+ GFileCopyFlags flags,
+ char **out_attributes,
+ GCancellable *cancellable,
+ GError **error)
+{
+ gboolean ret = FALSE;
+ GFileAttributeInfoList *attributes = NULL, *namespaces = NULL;
+ GString *s = NULL;
gboolean first;
int i;
+ gboolean copy_all_attributes;
+ gboolean skip_perms;
+
+ copy_all_attributes = flags & G_FILE_COPY_ALL_METADATA;
+ skip_perms = (flags & G_FILE_COPY_TARGET_DEFAULT_PERMS) != 0;
+
+ /* Ignore errors here, if the target supports no attributes there is
+ * nothing to copy. We still honor the cancellable though.
+ */
+ attributes = g_file_query_settable_attributes (file, cancellable, NULL);
+ if (g_cancellable_set_error_if_cancelled (cancellable, error))
+ goto out;
+
+ namespaces = g_file_query_writable_namespaces (file, cancellable, NULL);
+ if (g_cancellable_set_error_if_cancelled (cancellable, error))
+ goto out;
+
+ if (attributes == NULL && namespaces == NULL)
+ goto out;
first = TRUE;
s = g_string_new ("");
{
for (i = 0; i < attributes->n_infos; i++)
{
- if (should_copy (&attributes->infos[i], as_move, skip_perms))
+ if (should_copy (&attributes->infos[i], copy_all_attributes, skip_perms))
{
if (first)
first = FALSE;
{
for (i = 0; i < namespaces->n_infos; i++)
{
- if (should_copy (&namespaces->infos[i], as_move, FALSE))
+ if (should_copy (&namespaces->infos[i], copy_all_attributes, FALSE))
{
if (first)
first = FALSE;
}
}
- return g_string_free (s, FALSE);
+ ret = TRUE;
+ *out_attributes = g_string_free (s, FALSE);
+ s = NULL;
+ out:
+ if (s)
+ g_string_free (s, TRUE);
+ if (attributes)
+ g_file_attribute_info_list_unref (attributes);
+ if (namespaces)
+ g_file_attribute_info_list_unref (namespaces);
+
+ return ret;
}
/**
GCancellable *cancellable,
GError **error)
{
- GFileAttributeInfoList *attributes, *namespaces;
char *attrs_to_read;
gboolean res;
GFileInfo *info;
- gboolean as_move;
gboolean source_nofollow_symlinks;
- gboolean skip_perms;
-
- as_move = flags & G_FILE_COPY_ALL_METADATA;
- source_nofollow_symlinks = flags & G_FILE_COPY_NOFOLLOW_SYMLINKS;
- skip_perms = (flags & G_FILE_COPY_TARGET_DEFAULT_PERMS) != 0;
- /* Ignore errors here, if the target supports no attributes there is
- * nothing to copy
- */
- attributes = g_file_query_settable_attributes (destination, cancellable, NULL);
- namespaces = g_file_query_writable_namespaces (destination, cancellable, NULL);
-
- if (attributes == NULL && namespaces == NULL)
- return TRUE;
+ if (!build_attribute_list_for_copy (destination, flags, &attrs_to_read,
+ cancellable, error))
+ return FALSE;
- attrs_to_read = build_attribute_list_for_copy (attributes, namespaces, as_move, skip_perms);
+ source_nofollow_symlinks = flags & G_FILE_COPY_NOFOLLOW_SYMLINKS;
/* Ignore errors here, if we can't read some info (e.g. if it doesn't exist)
* we just don't copy it.
g_object_unref (info);
}
- g_file_attribute_info_list_unref (attributes);
- g_file_attribute_info_list_unref (namespaces);
-
return res;
}
gpointer progress_callback_data,
GError **error)
{
- int buffer[2];
+ int buffer[2] = { -1, -1 };
gboolean res;
goffset total_size;
loff_t offset_in;
fd_in = g_file_descriptor_based_get_fd (G_FILE_DESCRIPTOR_BASED (in));
fd_out = g_file_descriptor_based_get_fd (G_FILE_DESCRIPTOR_BASED (out));
- if (pipe (buffer) != 0)
- {
- g_set_error_literal (error, G_IO_ERROR, G_IO_ERROR_NOT_SUPPORTED,
- "Pipe creation failed");
- return FALSE;
- }
+ if (!g_unix_open_pipe (buffer, FD_CLOEXEC, error))
+ return FALSE;
total_size = -1;
/* avoid performance impact of querying total size when it's not needed */
if (progress_callback)
progress_callback (offset_in, total_size, progress_callback_data);
+ if (!g_close (buffer[0], error))
+ goto out;
+ buffer[0] = -1;
+ if (!g_close (buffer[1], error))
+ goto out;
+ buffer[1] = -1;
out:
- close (buffer[0]);
- close (buffer[1]);
+ if (buffer[0] != -1)
+ (void) g_close (buffer[0], NULL);
+ if (buffer[1] != -1)
+ (void) g_close (buffer[1], NULL);
return res;
}
#endif
+#ifdef __linux__
+static gboolean
+btrfs_reflink_with_progress (GInputStream *in,
+ GOutputStream *out,
+ GFileInfo *info,
+ GCancellable *cancellable,
+ GFileProgressCallback progress_callback,
+ gpointer progress_callback_data,
+ GError **error)
+{
+ goffset source_size;
+ int fd_in, fd_out;
+ int ret;
+
+ fd_in = g_file_descriptor_based_get_fd (G_FILE_DESCRIPTOR_BASED (in));
+ fd_out = g_file_descriptor_based_get_fd (G_FILE_DESCRIPTOR_BASED (out));
+
+ if (progress_callback)
+ source_size = g_file_info_get_size (info);
+
+ /* Btrfs clone ioctl properties:
+ * - Works at the inode level
+ * - Doesn't work with directories
+ * - Always follows symlinks (source and destination)
+ *
+ * By the time we get here, *in and *out are both regular files */
+ ret = ioctl (fd_out, BTRFS_IOC_CLONE, fd_in);
+
+ if (ret < 0)
+ {
+ if (errno == EXDEV)
+ g_set_error_literal (error, G_IO_ERROR,
+ G_IO_ERROR_NOT_SUPPORTED,
+ _("Copy (reflink/clone) between mounts is not supported"));
+ else if (errno == EINVAL)
+ g_set_error_literal (error, G_IO_ERROR,
+ G_IO_ERROR_NOT_SUPPORTED,
+ _("Copy (reflink/clone) is not supported or invalid"));
+ else
+ /* Most probably something odd happened; retry with fallback */
+ g_set_error_literal (error, G_IO_ERROR,
+ G_IO_ERROR_NOT_SUPPORTED,
+ _("Copy (reflink/clone) is not supported or didn't work"));
+ /* We retry with fallback for all error cases because Btrfs is currently
+ * unstable, and so we can't trust it to do clone properly.
+ * In addition, any hard errors here would cause the same failure in the
+ * fallback manual copy as well. */
+ return FALSE;
+ }
+
+ /* Make sure we send full copied size */
+ if (progress_callback)
+ progress_callback (source_size, source_size, progress_callback_data);
+
+ return TRUE;
+}
+#endif
+
static gboolean
file_copy_fallback (GFile *source,
GFile *destination,
gpointer progress_callback_data,
GError **error)
{
- GInputStream *in;
- GOutputStream *out;
- GFileInfo *info;
+ gboolean ret = FALSE;
+ GFileInputStream *file_in = NULL;
+ GInputStream *in = NULL;
+ GOutputStream *out = NULL;
+ GFileInfo *info = NULL;
const char *target;
- gboolean result;
-#ifdef HAVE_SPLICE
- gboolean fallback = TRUE;
-#endif
+ char *attrs_to_read;
+ gboolean do_set_attributes = FALSE;
/* need to know the file type */
info = g_file_query_info (source,
G_FILE_QUERY_INFO_NOFOLLOW_SYMLINKS,
cancellable,
error);
-
- if (info == NULL)
- return FALSE;
+ if (!info)
+ goto out;
/* Maybe copy the symlink? */
if ((flags & G_FILE_COPY_NOFOLLOW_SYMLINKS) &&
if (target)
{
if (!copy_symlink (destination, flags, cancellable, target, error))
- {
- g_object_unref (info);
- return FALSE;
- }
+ goto out;
- g_object_unref (info);
- goto copied_file;
+ ret = TRUE;
+ goto out;
}
/* ... else fall back on a regular file copy */
- g_object_unref (info);
}
/* Handle "special" files (pipes, device nodes, ...)? */
else if (g_file_info_get_file_type (info) == G_FILE_TYPE_SPECIAL)
/* FIXME: could try to recreate device nodes and others? */
g_set_error_literal (error, G_IO_ERROR, G_IO_ERROR_NOT_SUPPORTED,
_("Can't copy special file"));
- g_object_unref (info);
- return FALSE;
+ goto out;
}
+
/* Everything else should just fall back on a regular copy. */
- else
- g_object_unref (info);
- in = open_source_for_copy (source, destination, flags, cancellable, error);
- if (in == NULL)
- return FALSE;
+ file_in = open_source_for_copy (source, destination, flags, cancellable, error);
+ if (!file_in)
+ goto out;
+ in = G_INPUT_STREAM (file_in);
+
+ if (!build_attribute_list_for_copy (destination, flags, &attrs_to_read,
+ cancellable, error))
+ goto out;
+
+ if (attrs_to_read != NULL)
+ {
+ GError *tmp_error = NULL;
+
+ /* Ok, ditch the previous lightweight info (on Unix we just
+ * called lstat()); at this point we gather all the information
+ * we need about the source from the opened file descriptor.
+ */
+ g_object_unref (info);
+
+ info = g_file_input_stream_query_info (file_in, attrs_to_read,
+ cancellable, &tmp_error);
+ if (!info)
+ {
+ /* Not all gvfs backends implement query_info_on_read(), we
+ * can just fall back to the pathname again.
+ * https://bugzilla.gnome.org/706254
+ */
+ if (g_error_matches (tmp_error, G_IO_ERROR, G_IO_ERROR_NOT_SUPPORTED))
+ {
+ g_clear_error (&tmp_error);
+ info = g_file_query_info (source, attrs_to_read, G_FILE_QUERY_INFO_NOFOLLOW_SYMLINKS,
+ cancellable, error);
+ }
+ else
+ {
+ g_free (attrs_to_read);
+ g_propagate_error (error, tmp_error);
+ goto out;
+ }
+ }
+ g_free (attrs_to_read);
+ if (!info)
+ goto out;
+
+ do_set_attributes = TRUE;
+ }
- if (flags & G_FILE_COPY_OVERWRITE)
+ /* In the local file path, we pass down the source info which
+ * includes things like unix::mode, to ensure that the target file
+ * is not created with different permissions from the source file.
+ *
+ * If a future API like g_file_replace_with_info() is added, switch
+ * this code to use that.
+ */
+ if (G_IS_LOCAL_FILE (destination))
+ {
+ if (flags & G_FILE_COPY_OVERWRITE)
+ out = (GOutputStream*)_g_local_file_output_stream_replace (_g_local_file_get_filename (G_LOCAL_FILE (destination)),
+ FALSE, NULL,
+ flags & G_FILE_COPY_BACKUP,
+ G_FILE_CREATE_REPLACE_DESTINATION,
+ info,
+ cancellable, error);
+ else
+ out = (GOutputStream*)_g_local_file_output_stream_create (_g_local_file_get_filename (G_LOCAL_FILE (destination)),
+ FALSE, 0, info,
+ cancellable, error);
+ }
+ else if (flags & G_FILE_COPY_OVERWRITE)
{
out = (GOutputStream *)g_file_replace (destination,
NULL,
out = (GOutputStream *)g_file_create (destination, 0, cancellable, error);
}
- if (out == NULL)
+ if (!out)
+ goto out;
+
+#ifdef __linux__
+ if (G_IS_FILE_DESCRIPTOR_BASED (in) && G_IS_FILE_DESCRIPTOR_BASED (out))
{
- g_object_unref (in);
- return FALSE;
+ GError *reflink_err = NULL;
+
+ if (!btrfs_reflink_with_progress (in, out, info, cancellable,
+ progress_callback, progress_callback_data,
+ &reflink_err))
+ {
+ if (g_error_matches (reflink_err, G_IO_ERROR, G_IO_ERROR_NOT_SUPPORTED))
+ {
+ g_clear_error (&reflink_err);
+ }
+ else
+ {
+ g_propagate_error (error, reflink_err);
+ goto out;
+ }
+ }
+ else
+ {
+ ret = TRUE;
+ goto out;
+ }
}
+#endif
#ifdef HAVE_SPLICE
if (G_IS_FILE_DESCRIPTOR_BASED (in) && G_IS_FILE_DESCRIPTOR_BASED (out))
{
GError *splice_err = NULL;
- result = splice_stream_with_progress (in, out, cancellable,
- progress_callback, progress_callback_data,
- &splice_err);
-
- if (result || !g_error_matches (splice_err, G_IO_ERROR, G_IO_ERROR_NOT_SUPPORTED))
+ if (!splice_stream_with_progress (in, out, cancellable,
+ progress_callback, progress_callback_data,
+ &splice_err))
{
- fallback = FALSE;
- if (!result)
- g_propagate_error (error, splice_err);
+ if (g_error_matches (splice_err, G_IO_ERROR, G_IO_ERROR_NOT_SUPPORTED))
+ {
+ g_clear_error (&splice_err);
+ }
+ else
+ {
+ g_propagate_error (error, splice_err);
+ goto out;
+ }
}
else
- g_clear_error (&splice_err);
+ {
+ ret = TRUE;
+ goto out;
+ }
}
- if (fallback)
#endif
- result = copy_stream_with_progress (in, out, source, cancellable,
- progress_callback, progress_callback_data,
- error);
- /* Don't care about errors in source here */
- g_input_stream_close (in, cancellable, NULL);
+ /* A plain read/write loop */
+ if (!copy_stream_with_progress (in, out, source, cancellable,
+ progress_callback, progress_callback_data,
+ error))
+ goto out;
- /* But write errors on close are bad! */
- if (!g_output_stream_close (out, cancellable, result ? error : NULL))
- result = FALSE;
-
- g_object_unref (in);
- g_object_unref (out);
+ ret = TRUE;
+ out:
+ if (in)
+ {
+ /* Don't care about errors in source here */
+ (void) g_input_stream_close (in, cancellable, NULL);
+ g_object_unref (in);
+ }
- if (result == FALSE)
- return FALSE;
+ if (out)
+ {
+ /* But write errors on close are bad! */
+ if (!g_output_stream_close (out, cancellable, ret ? error : NULL))
+ ret = FALSE;
+ g_object_unref (out);
+ }
- copied_file:
/* Ignore errors here. Failure to copy metadata is not a hard error */
- g_file_copy_attributes (source, destination,
- flags, cancellable, NULL);
+ /* TODO: set these attributes /before/ we do the rename() on Unix */
+ if (ret && do_set_attributes)
+ {
+ g_file_set_attributes_from_info (destination,
+ info,
+ G_FILE_QUERY_INFO_NOFOLLOW_SYMLINKS,
+ cancellable,
+ NULL);
+ }
- return TRUE;
+ g_clear_object (&info);
+
+ return ret;
}
/**
* @source: input #GFile
* @destination: destination #GFile
* @flags: set of #GFileCopyFlags
- * @io_priority: the <link linkend="io-priority">I/O priority</link>
- * of the request
+ * @io_priority: the [I/O priority][io-priority] of the request
* @cancellable: (allow-none): optional #GCancellable object,
* %NULL to ignore
* @progress_callback: (allow-none): function to callback with progress
* asynchronously. For details of the behaviour, see g_file_copy().
*
* If @progress_callback is not %NULL, then that function that will be called
- * just like in g_file_copy(), however the callback will run in the main loop,
- * not in the thread that is doing the I/O operation.
+ * just like in g_file_copy(). The callback will run in the default main context
+ * of the thread calling g_file_copy_async() — the same context as @callback is
+ * run in.
*
* When the operation is finished, @callback will be called. You can then call
* g_file_copy_finish() to get the result of the operation.
g_propagate_error (error, my_error);
return FALSE;
}
+ else
+ g_clear_error (&my_error);
}
/* If the types are different, and the destination method failed
g_propagate_error (error, my_error);
return FALSE;
}
+ else
+ g_clear_error (&my_error);
}
}
}
/**
+ * g_file_make_directory_async:
+ * @file: input #GFile
+ * @io_priority: the [I/O priority][io-priority] of the request
+ * @cancellable: (allow-none): optional #GCancellable object,
+ * %NULL to ignore
+ * @callback: a #GAsyncReadyCallback to call
+ * when the request is satisfied
+ * @user_data: the data to pass to callback function
+ *
+ * Asynchronously creates a directory.
+ *
+ * Virtual: make_directory_async
+ * Since: 2.38
+ */
+void
+g_file_make_directory_async (GFile *file,
+ int io_priority,
+ GCancellable *cancellable,
+ GAsyncReadyCallback callback,
+ gpointer user_data)
+{
+ GFileIface *iface;
+
+ g_return_if_fail (G_IS_FILE (file));
+
+ iface = G_FILE_GET_IFACE (file);
+ (* iface->make_directory_async) (file,
+ io_priority,
+ cancellable,
+ callback,
+ user_data);
+}
+
+/**
+ * g_file_make_directory_finish:
+ * @file: input #GFile
+ * @result: a #GAsyncResult
+ * @error: a #GError, or %NULL
+ *
+ * Finishes an asynchronous directory creation, started with
+ * g_file_make_directory_async().
+ *
+ * Virtual: make_directory_finish
+ * Returns: %TRUE on successful directory creation, %FALSE otherwise.
+ * Since: 2.38
+ */
+gboolean
+g_file_make_directory_finish (GFile *file,
+ GAsyncResult *result,
+ GError **error)
+{
+ GFileIface *iface;
+
+ g_return_val_if_fail (G_IS_FILE (file), FALSE);
+ g_return_val_if_fail (G_IS_ASYNC_RESULT (result), FALSE);
+
+ iface = G_FILE_GET_IFACE (file);
+ return (* iface->make_directory_finish) (file, result, error);
+}
+
+/**
* g_file_make_directory_with_parents:
* @file: input #GFile
* @cancellable: (allow-none): optional #GCancellable object,
/**
* g_file_delete_async:
* @file: input #GFile
- * @io_priority: the <link linkend="io-priority">I/O priority</link>
- * of the request
+ * @io_priority: the [I/O priority][io-priority] of the request
* @cancellable: (allow-none): optional #GCancellable object,
* %NULL to ignore
* @callback: a #GAsyncReadyCallback to call
* Finishes deleting a file started with g_file_delete_async().
*
* Virtual: delete_file_finish
+ * Returns: %TRUE if the file was deleted. %FALSE otherwise.
* Since: 2.34
**/
gboolean
* triggering the cancellable object from another thread. If the operation
* was cancelled, the error %G_IO_ERROR_CANCELLED will be returned.
*
+ * Virtual: trash
* Returns: %TRUE on successful trash, %FALSE otherwise.
*/
gboolean
}
/**
+ * g_file_trash_async:
+ * @file: input #GFile
+ * @io_priority: the [I/O priority][io-priority] of the request
+ * @cancellable: (allow-none): optional #GCancellable object,
+ * %NULL to ignore
+ * @callback: a #GAsyncReadyCallback to call
+ * when the request is satisfied
+ * @user_data: the data to pass to callback function
+ *
+ * Asynchronously sends @file to the Trash location, if possible.
+ *
+ * Virtual: trash_async
+ * Since: 2.38
+ */
+void
+g_file_trash_async (GFile *file,
+ int io_priority,
+ GCancellable *cancellable,
+ GAsyncReadyCallback callback,
+ gpointer user_data)
+{
+ GFileIface *iface;
+
+ g_return_if_fail (G_IS_FILE (file));
+
+ iface = G_FILE_GET_IFACE (file);
+ (* iface->trash_async) (file,
+ io_priority,
+ cancellable,
+ callback,
+ user_data);
+}
+
+/**
+ * g_file_trash_finish:
+ * @file: input #GFile
+ * @result: a #GAsyncResult
+ * @error: a #GError, or %NULL
+ *
+ * Finishes an asynchronous file trashing operation, started with
+ * g_file_trash_async().
+ *
+ * Virtual: trash_finish
+ * Returns: %TRUE on successful trash, %FALSE otherwise.
+ * Since: 2.38
+ */
+gboolean
+g_file_trash_finish (GFile *file,
+ GAsyncResult *result,
+ GError **error)
+{
+ GFileIface *iface;
+
+ g_return_val_if_fail (G_IS_FILE (file), FALSE);
+ g_return_val_if_fail (G_IS_ASYNC_RESULT (result), FALSE);
+
+ iface = G_FILE_GET_IFACE (file);
+ return (* iface->trash_finish) (file, result, error);
+}
+
+/**
* g_file_set_display_name:
* @file: input #GFile
* @display_name: a string
* g_file_set_display_name_async:
* @file: input #GFile
* @display_name: a string
- * @io_priority: the <link linkend="io-priority">I/O priority</link>
- * of the request
+ * @io_priority: the [I/O priority][io-priority] of the request
* @cancellable: (allow-none): optional #GCancellable object,
* %NULL to ignore
* @callback: (scope async): a #GAsyncReadyCallback to call
* @file: input #GFile
* @info: a #GFileInfo
* @flags: a #GFileQueryInfoFlags
- * @io_priority: the <link linkend="io-priority">I/O priority</link>
- * of the request
+ * @io_priority: the [I/O priority][io-priority] of the request
* @cancellable: (allow-none): optional #GCancellable object,
* %NULL to ignore
* @callback: (scope async): a #GAsyncReadyCallback
gpointer task_data,
GCancellable *cancellable)
{
- GFileIface *iface;
GFileInputStream *stream;
GError *error = NULL;
- iface = G_FILE_GET_IFACE (object);
-
- if (iface->read_fn == NULL)
- {
- g_task_return_new_error (task, G_IO_ERROR,
- G_IO_ERROR_NOT_SUPPORTED,
- _("Operation not supported"));
- return;
- }
-
- stream = iface->read_fn (G_FILE (object), cancellable, &error);
+ stream = g_file_read (G_FILE (object), cancellable, &error);
if (stream)
g_task_return_pointer (task, stream, g_object_unref);
else
gpointer task_data,
GCancellable *cancellable)
{
- GFileIface *iface;
GFileCreateFlags *data = task_data;
GFileOutputStream *stream;
GError *error = NULL;
- iface = G_FILE_GET_IFACE (source_object);
-
- stream = iface->append_to (G_FILE (source_object), *data, cancellable, &error);
+ stream = g_file_append_to (G_FILE (source_object), *data, cancellable, &error);
if (stream)
g_task_return_pointer (task, stream, g_object_unref);
else
gpointer task_data,
GCancellable *cancellable)
{
- GFileIface *iface;
GFileCreateFlags *data = task_data;
GFileOutputStream *stream;
GError *error = NULL;
- iface = G_FILE_GET_IFACE (source_object);
-
- stream = iface->create (G_FILE (source_object), *data, cancellable, &error);
+ stream = g_file_create (G_FILE (source_object), *data, cancellable, &error);
if (stream)
g_task_return_pointer (task, stream, g_object_unref);
else
gpointer task_data,
GCancellable *cancellable)
{
- GFileIface *iface;
GFileOutputStream *stream;
ReplaceAsyncData *data = task_data;
GError *error = NULL;
- iface = G_FILE_GET_IFACE (source_object);
-
- stream = iface->replace (G_FILE (source_object),
+ stream = g_file_replace (G_FILE (source_object),
data->etag,
data->make_backup,
data->flags,
gpointer task_data,
GCancellable *cancellable)
{
- GFile *file = object;
- GFileIface *iface;
GError *error = NULL;
- iface = G_FILE_GET_IFACE (object);
-
- if (iface->delete_file (file,
- cancellable,
- &error))
+ if (g_file_delete (G_FILE (object), cancellable, &error))
g_task_return_boolean (task, TRUE);
else
g_task_return_error (task, error);
}
static void
-open_readwrite_async_thread (GTask *task,
+trash_async_thread (GTask *task,
+ gpointer object,
+ gpointer task_data,
+ GCancellable *cancellable)
+{
+ GError *error = NULL;
+
+ if (g_file_trash (G_FILE (object), cancellable, &error))
+ g_task_return_boolean (task, TRUE);
+ else
+ g_task_return_error (task, error);
+}
+
+static void
+g_file_real_trash_async (GFile *file,
+ int io_priority,
+ GCancellable *cancellable,
+ GAsyncReadyCallback callback,
+ gpointer user_data)
+{
+ GTask *task;
+
+ task = g_task_new (file, cancellable, callback, user_data);
+ g_task_set_priority (task, io_priority);
+ g_task_run_in_thread (task, trash_async_thread);
+ g_object_unref (task);
+}
+
+static gboolean
+g_file_real_trash_finish (GFile *file,
+ GAsyncResult *res,
+ GError **error)
+{
+ g_return_val_if_fail (g_task_is_valid (res, file), FALSE);
+
+ return g_task_propagate_boolean (G_TASK (res), error);
+}
+
+static void
+make_directory_async_thread (GTask *task,
gpointer object,
gpointer task_data,
GCancellable *cancellable)
{
- GFileIface *iface;
- GFileIOStream *stream;
GError *error = NULL;
- iface = G_FILE_GET_IFACE (object);
+ if (g_file_make_directory (G_FILE (object), cancellable, &error))
+ g_task_return_boolean (task, TRUE);
+ else
+ g_task_return_error (task, error);
+}
- if (iface->open_readwrite == NULL)
- {
- g_task_return_new_error (task, G_IO_ERROR, G_IO_ERROR_NOT_SUPPORTED,
- _("Operation not supported"));
- return;
- }
+static void
+g_file_real_make_directory_async (GFile *file,
+ int io_priority,
+ GCancellable *cancellable,
+ GAsyncReadyCallback callback,
+ gpointer user_data)
+{
+ GTask *task;
+
+ task = g_task_new (file, cancellable, callback, user_data);
+ g_task_set_priority (task, io_priority);
+ g_task_run_in_thread (task, make_directory_async_thread);
+ g_object_unref (task);
+}
+
+static gboolean
+g_file_real_make_directory_finish (GFile *file,
+ GAsyncResult *res,
+ GError **error)
+{
+ g_return_val_if_fail (g_task_is_valid (res, file), FALSE);
- stream = iface->open_readwrite (G_FILE (object), cancellable, &error);
+ return g_task_propagate_boolean (G_TASK (res), error);
+}
+
+static void
+open_readwrite_async_thread (GTask *task,
+ gpointer object,
+ gpointer task_data,
+ GCancellable *cancellable)
+{
+ GFileIOStream *stream;
+ GError *error = NULL;
+
+ stream = g_file_open_readwrite (G_FILE (object), cancellable, &error);
if (stream == NULL)
g_task_return_error (task, error);
gpointer task_data,
GCancellable *cancellable)
{
- GFileIface *iface;
GFileCreateFlags *data = task_data;
GFileIOStream *stream;
GError *error = NULL;
- iface = G_FILE_GET_IFACE (object);
-
- if (iface->create_readwrite == NULL)
- {
- g_task_return_new_error (task, G_IO_ERROR, G_IO_ERROR_NOT_SUPPORTED,
- _("Operation not supported"));
- return;
- }
-
- stream = iface->create_readwrite (G_FILE (object), *data, cancellable, &error);
+ stream = g_file_create_readwrite (G_FILE (object), *data, cancellable, &error);
if (stream == NULL)
g_task_return_error (task, error);
gpointer task_data,
GCancellable *cancellable)
{
- GFileIface *iface;
GFileIOStream *stream;
GError *error = NULL;
ReplaceRWAsyncData *data = task_data;
- iface = G_FILE_GET_IFACE (object);
-
- stream = iface->replace_readwrite (G_FILE (object),
+ stream = g_file_replace_readwrite (G_FILE (object),
data->etag,
data->make_backup,
data->flags,
* This operation never fails, but the returned object might not
* support any I/O operation if @arg points to a malformed path.
*
+ * Note that on Windows, this function expects its argument to be in
+ * UTF-8 -- not the system code page. This means that you
+ * should not use this function with string from argv as it is passed
+ * to main(). g_win32_get_command_line() will return a UTF-8 version of
+ * the commandline. #GApplication also uses UTF-8 but
+ * g_application_command_line_create_file_for_arg() may be more useful
+ * for you there. It is also always possible to use this function with
+ * #GOptionContext arguments of type %G_OPTION_ARG_FILENAME.
+ *
* Returns: (transfer full): a new #GFile.
* Free the returned object with g_object_unref().
*/
if (read_size < 0)
{
- /* EOF, close the file */
g_task_return_error (data->task, error);
- g_input_stream_close_async (stream, 0,
- g_task_get_cancellable (data->task),
- load_contents_close_callback, data);
+ g_object_unref (data->task);
+
+ /* Close the file ignoring any error */
+ g_input_stream_close_async (stream, 0, NULL, NULL, NULL);
+ g_object_unref (stream);
}
else if (read_size == 0)
{
* @file: input #GFile
* @contents: (element-type guint8) (array length=length): a string containing the new contents for @file
* @length: the length of @contents in bytes
- * @etag: (allow-none): the old <link linkend="gfile-etag">entity tag</link>
- * for the document, or %NULL
+ * @etag: (allow-none): the old [entity-tag][gfile-etag] for the document,
+ * or %NULL
* @make_backup: %TRUE if a backup should be created
* @flags: a set of #GFileCreateFlags
- * @new_etag: (allow-none) (out): a location to a new <link linkend="gfile-etag">entity tag</link>
+ * @new_etag: (allow-none) (out): a location to a new [entity tag][gfile-etag]
* for the document. This should be freed with g_free() when no longer
* needed, or %NULL
* @cancellable: optional #GCancellable object, %NULL to ignore
typedef struct {
GTask *task;
- const char *content;
- gsize length;
+ GBytes *content;
gsize pos;
char *etag;
gboolean failed;
static void
replace_contents_data_free (ReplaceContentsData *data)
{
+ g_bytes_unref (data->content);
g_free (data->etag);
g_free (data);
}
}
else if (write_size > 0)
{
+ const gchar *content;
+ gsize length;
+
+ content = g_bytes_get_data (data->content, &length);
data->pos += write_size;
- if (data->pos >= data->length)
+ if (data->pos >= length)
g_output_stream_close_async (stream, 0,
g_task_get_cancellable (data->task),
replace_contents_close_callback, data);
else
g_output_stream_write_async (stream,
- data->content + data->pos,
- data->length - data->pos,
+ content + data->pos,
+ length - data->pos,
0,
g_task_get_cancellable (data->task),
replace_contents_write_callback,
if (stream)
{
+ const gchar *content;
+ gsize length;
+
+ content = g_bytes_get_data (data->content, &length);
g_output_stream_write_async (G_OUTPUT_STREAM (stream),
- data->content + data->pos,
- data->length - data->pos,
+ content + data->pos,
+ length - data->pos,
0,
g_task_get_cancellable (data->task),
replace_contents_write_callback,
* @file: input #GFile
* @contents: (element-type guint8) (array length=length): string of contents to replace the file with
* @length: the length of @contents in bytes
- * @etag: (allow-none): a new <link linkend="gfile-etag">entity tag</link> for the @file, or %NULL
+ * @etag: (allow-none): a new [entity tag][gfile-etag] for the @file, or %NULL
* @make_backup: %TRUE if a backup should be created
* @flags: a set of #GFileCreateFlags
* @cancellable: optional #GCancellable object, %NULL to ignore
*
* If @make_backup is %TRUE, this function will attempt to
* make a backup of @file.
+ *
+ * Note that no copy of @content will be made, so it must stay valid
+ * until @callback is called. See g_file_replace_contents_bytes_async()
+ * for a #GBytes version that will automatically hold a reference to the
+ * contents (without copying) for the duration of the call.
*/
void
g_file_replace_contents_async (GFile *file,
GAsyncReadyCallback callback,
gpointer user_data)
{
+ GBytes *bytes;
+
+ bytes = g_bytes_new_static (contents, length);
+ g_file_replace_contents_bytes_async (file, bytes, etag, make_backup, flags,
+ cancellable, callback, user_data);
+ g_bytes_unref (bytes);
+}
+
+/**
+ * g_file_replace_contents_bytes_async:
+ * @file: input #GFile
+ * @contents: a #GBytes
+ * @etag: (allow-none): a new [entity tag][gfile-etag] for the @file, or %NULL
+ * @make_backup: %TRUE if a backup should be created
+ * @flags: a set of #GFileCreateFlags
+ * @cancellable: optional #GCancellable object, %NULL to ignore
+ * @callback: a #GAsyncReadyCallback to call when the request is satisfied
+ * @user_data: the data to pass to callback function
+ *
+ * Same as g_file_replace_contents_async() but takes a #GBytes input instead.
+ * This function will keep a ref on @contents until the operation is done.
+ * Unlike g_file_replace_contents_async() this allows forgetting about the
+ * content without waiting for the callback.
+ *
+ * When this operation has completed, @callback will be called with
+ * @user_user data, and the operation can be finalized with
+ * g_file_replace_contents_finish().
+ *
+ * Since: 2.40
+ */
+void
+g_file_replace_contents_bytes_async (GFile *file,
+ GBytes *contents,
+ const char *etag,
+ gboolean make_backup,
+ GFileCreateFlags flags,
+ GCancellable *cancellable,
+ GAsyncReadyCallback callback,
+ gpointer user_data)
+{
ReplaceContentsData *data;
g_return_if_fail (G_IS_FILE (file));
data = g_new0 (ReplaceContentsData, 1);
- data->content = contents;
- data->length = length;
+ data->content = g_bytes_ref (contents);
data->task = g_task_new (file, cancellable, callback, user_data);
g_task_set_task_data (data->task, data, (GDestroyNotify)replace_contents_data_free);
* g_file_replace_contents_finish:
* @file: input #GFile
* @res: a #GAsyncResult
- * @new_etag: (out) (allow-none): a location of a new <link linkend="gfile-etag">entity tag</link>
+ * @new_etag: (out) (allow-none): a location of a new [entity tag][gfile-etag]
* for the document. This should be freed with g_free() when it is no
* longer needed, or %NULL
* @error: a #GError, or %NULL
return TRUE;
}
+gboolean
+g_file_real_measure_disk_usage (GFile *file,
+ GFileMeasureFlags flags,
+ GCancellable *cancellable,
+ GFileMeasureProgressCallback progress_callback,
+ gpointer progress_data,
+ guint64 *disk_usage,
+ guint64 *num_dirs,
+ guint64 *num_files,
+ GError **error)
+{
+ g_set_error_literal (error, G_IO_ERROR, G_IO_ERROR_NOT_SUPPORTED,
+ "Operation not supported for the current backend.");
+ return FALSE;
+}
+
+typedef struct
+{
+ GFileMeasureFlags flags;
+ GFileMeasureProgressCallback progress_callback;
+ gpointer progress_data;
+} MeasureTaskData;
+
+typedef struct
+{
+ guint64 disk_usage;
+ guint64 num_dirs;
+ guint64 num_files;
+} MeasureResult;
+
+typedef struct
+{
+ GFileMeasureProgressCallback callback;
+ gpointer user_data;
+ gboolean reporting;
+ guint64 current_size;
+ guint64 num_dirs;
+ guint64 num_files;
+} MeasureProgress;
+
+static gboolean
+measure_disk_usage_invoke_progress (gpointer user_data)
+{
+ MeasureProgress *progress = user_data;
+
+ (* progress->callback) (progress->reporting,
+ progress->current_size, progress->num_dirs, progress->num_files,
+ progress->user_data);
+
+ return FALSE;
+}
+
+static void
+measure_disk_usage_progress (gboolean reporting,
+ guint64 current_size,
+ guint64 num_dirs,
+ guint64 num_files,
+ gpointer user_data)
+{
+ MeasureProgress progress;
+ GTask *task = user_data;
+ MeasureTaskData *data;
+
+ data = g_task_get_task_data (task);
+
+ progress.callback = data->progress_callback;
+ progress.user_data = data->progress_data;
+ progress.reporting = reporting;
+ progress.current_size = current_size;
+ progress.num_dirs = num_dirs;
+ progress.num_files = num_files;
+
+ g_main_context_invoke_full (g_task_get_context (task),
+ g_task_get_priority (task),
+ measure_disk_usage_invoke_progress,
+ g_memdup (&progress, sizeof progress),
+ g_free);
+}
+
+static void
+measure_disk_usage_thread (GTask *task,
+ gpointer source_object,
+ gpointer task_data,
+ GCancellable *cancellable)
+{
+ MeasureTaskData *data = task_data;
+ GError *error = NULL;
+ MeasureResult result = { 0, };
+
+ if (g_file_measure_disk_usage (source_object, data->flags, cancellable,
+ data->progress_callback ? measure_disk_usage_progress : NULL, task,
+ &result.disk_usage, &result.num_dirs, &result.num_files,
+ &error))
+ g_task_return_pointer (task, g_memdup (&result, sizeof result), g_free);
+ else
+ g_task_return_error (task, error);
+}
+
+static void
+g_file_real_measure_disk_usage_async (GFile *file,
+ GFileMeasureFlags flags,
+ gint io_priority,
+ GCancellable *cancellable,
+ GFileMeasureProgressCallback progress_callback,
+ gpointer progress_data,
+ GAsyncReadyCallback callback,
+ gpointer user_data)
+{
+ MeasureTaskData data;
+ GTask *task;
+
+ data.flags = flags;
+ data.progress_callback = progress_callback;
+ data.progress_data = progress_data;
+
+ task = g_task_new (file, cancellable, callback, user_data);
+ g_task_set_task_data (task, g_memdup (&data, sizeof data), g_free);
+ g_task_set_priority (task, io_priority);
+
+ g_task_run_in_thread (task, measure_disk_usage_thread);
+ g_object_unref (task);
+}
+
+static gboolean
+g_file_real_measure_disk_usage_finish (GFile *file,
+ GAsyncResult *result,
+ guint64 *disk_usage,
+ guint64 *num_dirs,
+ guint64 *num_files,
+ GError **error)
+{
+ MeasureResult *measure_result;
+
+ g_return_val_if_fail (g_task_is_valid (result, file), FALSE);
+
+ measure_result = g_task_propagate_pointer (G_TASK (result), error);
+
+ if (measure_result == NULL)
+ return FALSE;
+
+ if (disk_usage)
+ *disk_usage = measure_result->disk_usage;
+
+ if (num_dirs)
+ *num_dirs = measure_result->num_dirs;
+
+ if (num_files)
+ *num_files = measure_result->num_files;
+
+ g_free (measure_result);
+
+ return TRUE;
+}
+
+/**
+ * g_file_measure_disk_usage:
+ * @file: a #GFile
+ * @flags: #GFileMeasureFlags
+ * @cancellable: (allow-none): optional #GCancellable
+ * @progress_callback: (allow-none): a #GFileMeasureProgressCallback
+ * @progress_data: user_data for @progress_callback
+ * @disk_usage: (allow-none) (out): the number of bytes of disk space used
+ * @num_dirs: (allow-none) (out): the number of directories encountered
+ * @num_files: (allow-none) (out): the number of non-directories encountered
+ * @error: (allow-none): %NULL, or a pointer to a %NULL #GError pointer
+ *
+ * Recursively measures the disk usage of @file.
+ *
+ * This is essentially an analog of the 'du' command, but it also
+ * reports the number of directories and non-directory files encountered
+ * (including things like symbolic links).
+ *
+ * By default, errors are only reported against the toplevel file
+ * itself. Errors found while recursing are silently ignored, unless
+ * %G_FILE_DISK_USAGE_REPORT_ALL_ERRORS is given in @flags.
+ *
+ * The returned size, @disk_usage, is in bytes and should be formatted
+ * with g_format_size() in order to get something reasonable for showing
+ * in a user interface.
+ *
+ * @progress_callback and @progress_data can be given to request
+ * periodic progress updates while scanning. See the documentation for
+ * #GFileMeasureProgressCallback for information about when and how the
+ * callback will be invoked.
+ *
+ * Returns: %TRUE if successful, with the out parameters set.
+ * %FALSE otherwise, with @error set.
+ *
+ * Since: 2.38
+ **/
+gboolean
+g_file_measure_disk_usage (GFile *file,
+ GFileMeasureFlags flags,
+ GCancellable *cancellable,
+ GFileMeasureProgressCallback progress_callback,
+ gpointer progress_data,
+ guint64 *disk_usage,
+ guint64 *num_dirs,
+ guint64 *num_files,
+ GError **error)
+{
+ g_return_val_if_fail (G_IS_FILE (file), FALSE);
+ g_return_val_if_fail (cancellable == NULL || G_IS_CANCELLABLE (cancellable), FALSE);
+ g_return_val_if_fail (error == NULL || *error == NULL, FALSE);
+
+ return G_FILE_GET_IFACE (file)->measure_disk_usage (file, flags, cancellable,
+ progress_callback, progress_data,
+ disk_usage, num_dirs, num_files,
+ error);
+}
+
+/**
+ * g_file_measure_disk_usage_async:
+ * @file: a #GFile
+ * @flags: #GFileMeasureFlags
+ * @io_priority: the [I/O priority][io-priority] of the request
+ * @cancellable: (allow-none): optional #GCancellable
+ * @progress_callback: (allow-none): a #GFileMeasureProgressCallback
+ * @progress_data: user_data for @progress_callback
+ * @callback: (allow-none): a #GAsyncReadyCallback to call when complete
+ * @user_data: the data to pass to callback function
+ *
+ * Recursively measures the disk usage of @file.
+ *
+ * This is the asynchronous version of g_file_measure_disk_usage(). See
+ * there for more information.
+ *
+ * Since: 2.38
+ **/
+void
+g_file_measure_disk_usage_async (GFile *file,
+ GFileMeasureFlags flags,
+ gint io_priority,
+ GCancellable *cancellable,
+ GFileMeasureProgressCallback progress_callback,
+ gpointer progress_data,
+ GAsyncReadyCallback callback,
+ gpointer user_data)
+{
+ g_return_if_fail (G_IS_FILE (file));
+ g_return_if_fail (cancellable == NULL || G_IS_CANCELLABLE (cancellable));
+
+ G_FILE_GET_IFACE (file)->measure_disk_usage_async (file, flags, io_priority, cancellable,
+ progress_callback, progress_data,
+ callback, user_data);
+}
+
+/**
+ * g_file_measure_disk_usage_finish:
+ * @file: a #GFile
+ * @result: the #GAsyncResult passed to your #GAsyncReadyCallback
+ * @disk_usage: (allow-none) (out): the number of bytes of disk space used
+ * @num_dirs: (allow-none) (out): the number of directories encountered
+ * @num_files: (allow-none) (out): the number of non-directories encountered
+ * @error: (allow-none): %NULL, or a pointer to a %NULL #GError pointer
+ *
+ * Collects the results from an earlier call to
+ * g_file_measure_disk_usage_async(). See g_file_measure_disk_usage() for
+ * more information.
+ *
+ * Returns: %TRUE if successful, with the out parameters set.
+ * %FALSE otherwise, with @error set.
+ *
+ * Since: 2.38
+ **/
+gboolean
+g_file_measure_disk_usage_finish (GFile *file,
+ GAsyncResult *result,
+ guint64 *disk_usage,
+ guint64 *num_dirs,
+ guint64 *num_files,
+ GError **error)
+{
+ g_return_val_if_fail (G_IS_FILE (file), FALSE);
+ g_return_val_if_fail (error == NULL || *error == NULL, FALSE);
+
+ return G_FILE_GET_IFACE (file)->measure_disk_usage_finish (file, result, disk_usage, num_dirs, num_files, error);
+}
+
/**
* g_file_start_mountable:
* @file: input #GFile
* g_file_supports_thread_contexts:
* @file: a #GFile
*
- * Checks if @file supports <link
- * linkend="g-main-context-push-thread-default-context">thread-default
- * contexts</link>. If this returns %FALSE, you cannot perform
- * asynchronous operations on @file in a thread that has a
- * thread-default context.
+ * Checks if @file supports
+ * [thread-default contexts][g-main-context-push-thread-default-context].
+ * If this returns %FALSE, you cannot perform asynchronous operations on
+ * @file in a thread that has a thread-default context.
*
* Returns: Whether or not @file supports thread-default contexts.
*