static gboolean
g_local_file_input_stream_close (GInputStream *stream,
GCancellable *cancellable,
GError **error)
{
GLocalFileInputStream *file;
int res;
file = G_LOCAL_FILE_INPUT_STREAM (stream);
if (!file->priv->do_close)
return TRUE;
if (file->priv->fd == -1)
return TRUE;
while (1)
{
res = close (file->priv->fd);
if (res == -1)
{
int errsv = errno;
g_set_error (error, G_IO_ERROR,
g_io_error_from_errno (errsv),
_("Error closing file: %s"),
g_strerror (errsv));
}
break;
}
return res != -1;
}
static gboolean
g_local_file_input_stream_seek (GFileInputStream *stream,
goffset offset,
GSeekType type,
GCancellable *cancellable,
GError **error)
{
GLocalFileInputStream *file;
off_t pos;
file = G_LOCAL_FILE_INPUT_STREAM (stream);
pos = lseek (file->priv->fd, offset, seek_type_to_lseek (type));
if (pos == (off_t)-1)
{
int errsv = errno;
g_set_error (error, G_IO_ERROR,
g_io_error_from_errno (errsv),
_("Error seeking in file: %s"),
g_strerror (errsv));
return FALSE;
}
return TRUE;
}
static void
g_local_file_input_stream_finalize (GObject *object)
{
GLocalFileInputStream *file;
file = G_LOCAL_FILE_INPUT_STREAM (object);
G_OBJECT_CLASS (g_local_file_input_stream_parent_class)->finalize (object);
}
static gboolean
g_local_file_input_stream_can_seek (GFileInputStream *stream)
{
GLocalFileInputStream *file;
off_t pos;
file = G_LOCAL_FILE_INPUT_STREAM (stream);
pos = lseek (file->priv->fd, 0, SEEK_CUR);
if (pos == (off_t)-1 && errno == ESPIPE)
return FALSE;
return TRUE;
}
static goffset
g_local_file_input_stream_tell (GFileInputStream *stream)
{
GLocalFileInputStream *file;
off_t pos;
file = G_LOCAL_FILE_INPUT_STREAM (stream);
pos = lseek (file->priv->fd, 0, SEEK_CUR);
if (pos == (off_t)-1)
return 0;
return pos;
}
GFileIOStream *
_g_local_file_io_stream_new (GLocalFileOutputStream *output_stream)
{
GLocalFileIOStream *stream;
int fd;
stream = g_object_new (G_TYPE_LOCAL_FILE_IO_STREAM, NULL);
stream->output_stream = g_object_ref (output_stream);
_g_local_file_output_stream_set_do_close (output_stream, FALSE);
fd = g_file_descriptor_based_get_fd (G_FILE_DESCRIPTOR_BASED (output_stream));
stream->input_stream = (GInputStream *)_g_local_file_input_stream_new (fd);
_g_local_file_input_stream_set_do_close (G_LOCAL_FILE_INPUT_STREAM (stream->input_stream),
FALSE);
return G_FILE_IO_STREAM (stream);
}
static GFileInfo *
g_local_file_input_stream_query_info (GFileInputStream *stream,
const char *attributes,
GCancellable *cancellable,
GError **error)
{
GLocalFileInputStream *file;
file = G_LOCAL_FILE_INPUT_STREAM (stream);
if (g_cancellable_set_error_if_cancelled (cancellable, error))
return NULL;
return _g_local_file_info_get_from_fd (file->priv->fd,
attributes,
error);
}
static gssize
g_local_file_input_stream_skip (GInputStream *stream,
gsize count,
GCancellable *cancellable,
GError **error)
{
off_t res, start;
GLocalFileInputStream *file;
file = G_LOCAL_FILE_INPUT_STREAM (stream);
if (g_cancellable_set_error_if_cancelled (cancellable, error))
return -1;
start = lseek (file->priv->fd, 0, SEEK_CUR);
if (start == -1)
{
int errsv = errno;
g_set_error (error, G_IO_ERROR,
g_io_error_from_errno (errsv),
_("Error seeking in file: %s"),
g_strerror (errsv));
return -1;
}
res = lseek (file->priv->fd, count, SEEK_CUR);
if (res == -1)
{
int errsv = errno;
g_set_error (error, G_IO_ERROR,
g_io_error_from_errno (errsv),
_("Error seeking in file: %s"),
g_strerror (errsv));
return -1;
}
return res - start;
}
static gssize
g_local_file_input_stream_read (GInputStream *stream,
void *buffer,
gsize count,
GCancellable *cancellable,
GError **error)
{
GLocalFileInputStream *file;
gssize res;
file = G_LOCAL_FILE_INPUT_STREAM (stream);
res = -1;
while (1)
{
if (g_cancellable_set_error_if_cancelled (cancellable, error))
break;
res = read (file->priv->fd, buffer, count);
if (res == -1)
{
int errsv = errno;
if (errsv == EINTR)
continue;
g_set_error (error, G_IO_ERROR,
g_io_error_from_errno (errsv),
_("Error reading from file: %s"),
g_strerror (errsv));
}
break;
}
return res;
}
