static int
stream_close (CamelStream *stream)
{
CamelStreamVFS *stream_vfs = CAMEL_STREAM_VFS (stream);
GError *error = NULL;
g_return_val_if_fail (CAMEL_IS_STREAM_VFS (stream) && stream_vfs != NULL, -1);
g_return_val_if_fail (stream_vfs->stream != NULL, -1);
g_return_val_if_fail (G_IS_OUTPUT_STREAM (stream_vfs->stream) || G_IS_INPUT_STREAM (stream_vfs->stream), -1);
if (G_IS_OUTPUT_STREAM (stream_vfs->stream))
g_output_stream_close (G_OUTPUT_STREAM (stream_vfs->stream), NULL, &error);
else
g_input_stream_close (G_INPUT_STREAM (stream_vfs->stream), NULL, &error);
if (error) {
g_warning ("%s", error->message);
g_error_free (error);
return -1;
}
g_object_unref (stream_vfs->stream);
stream_vfs->stream = NULL;
return 0;
}
static gboolean
gst_gio_base_sink_event (GstBaseSink * base_sink, GstEvent * event)
{
GstGioBaseSink *sink = GST_GIO_BASE_SINK (base_sink);
GstFlowReturn ret = GST_FLOW_OK;
if (sink->stream == NULL)
return TRUE;
switch (GST_EVENT_TYPE (event)) {
case GST_EVENT_SEGMENT:
if (G_IS_OUTPUT_STREAM (sink->stream)) {
const GstSegment *segment;
gst_event_parse_segment (event, &segment);
if (segment->format != GST_FORMAT_BYTES) {
GST_WARNING_OBJECT (sink, "ignored SEGMENT event in %s format",
gst_format_get_name (segment->format));
break;
}
if (GST_GIO_STREAM_IS_SEEKABLE (sink->stream)) {
ret = gst_gio_seek (sink, G_SEEKABLE (sink->stream), segment->start,
sink->cancel);
if (ret == GST_FLOW_OK)
sink->position = segment->start;
} else {
ret = GST_FLOW_NOT_SUPPORTED;
}
}
break;
case GST_EVENT_EOS:
case GST_EVENT_FLUSH_START:
if (G_IS_OUTPUT_STREAM (sink->stream)) {
gboolean success;
GError *err = NULL;
success = g_output_stream_flush (sink->stream, sink->cancel, &err);
if (!success && !gst_gio_error (sink, "g_output_stream_flush", &err,
&ret)) {
GST_ELEMENT_ERROR (sink, RESOURCE, WRITE, (NULL),
("flush failed: %s", err->message));
g_clear_error (&err);
}
}
break;
default:
break;
}
if (ret == GST_FLOW_OK)
return GST_BASE_SINK_CLASS (parent_class)->event (base_sink, event);
else {
gst_event_unref (event);
return FALSE;
}
}
static void
get_callback (SoupSession *session, SoupMessage *msg, SeahorseHKPOperation *hop)
{
GError *err = NULL;
const gchar *start;
const gchar *end;
GOutputStream *output;
const gchar *text;
gboolean ret;
guint len;
gsize written;
if (hop->cancelling)
return;
if (SOUP_MESSAGE_IS_ERROR (msg)) {
fail_hkp_operation (hop, msg, NULL);
return;
}
end = text = msg->response_body->data;
len = msg->response_body->length;
for (;;) {
len -= end - text;
text = end;
if(!detect_key (text, len, &start, &end))
break;
/* Any key blocks get written to our result data */
output = seahorse_operation_get_result (SEAHORSE_OPERATION (hop));
g_return_if_fail (G_IS_OUTPUT_STREAM (output));
ret = g_output_stream_write_all (output, start, end - start, &written, NULL, &err) &&
g_output_stream_write_all (output, "\n", 1, &written, NULL, &err) &&
g_output_stream_flush (output, NULL, &err);
if (!ret) {
seahorse_operation_mark_done (SEAHORSE_OPERATION (hop), FALSE, err);
return;
}
}
if (--hop->requests <= 0) {
output = seahorse_operation_get_result (SEAHORSE_OPERATION (hop));
g_return_if_fail (G_IS_OUTPUT_STREAM (output));
g_output_stream_close (output, NULL, &err);
seahorse_operation_mark_done (SEAHORSE_OPERATION (hop), FALSE, err);
} else {
seahorse_operation_mark_progress_full (SEAHORSE_OPERATION (hop), _("Retrieving keys..."),
hop->requests, hop->total);
}
}
/**
* ggit_patch_to_stream:
* @patch: a #GgitPatch.
* @stream: a #GOutputStream.
* @error: a #GError for error reporting, or %NULL.
*
* Write the contents of a patch to the provided stream.
*
* Returns: %TRUE if the patch was written successfully, %FALSE otherwise.
*
**/
gboolean
ggit_patch_to_stream (GgitPatch *patch,
GOutputStream *stream,
GError **error)
{
PatchToStream info;
gint ret;
g_return_val_if_fail (patch != NULL, FALSE);
g_return_val_if_fail (G_IS_OUTPUT_STREAM (stream), FALSE);
g_return_val_if_fail (error == NULL || *error == NULL, FALSE);
info.stream = stream;
info.error = error;
ret = git_patch_print (patch->patch,
patch_to_stream,
&info);
if (ret != GIT_OK)
{
if (error != NULL && *error == NULL)
{
_ggit_error_set (error, ret);
}
return FALSE;
}
return TRUE;
}
/**
* camel_stream_vfs_is_writable:
* @stream_vfs: a #CamelStreamVFS instance
*
* Returns whether is the underlying stream writable or not.
**/
gboolean
camel_stream_vfs_is_writable (CamelStreamVFS *stream_vfs)
{
g_return_val_if_fail (stream_vfs != NULL, FALSE);
g_return_val_if_fail (stream_vfs->stream != NULL, FALSE);
return G_IS_OUTPUT_STREAM (stream_vfs->stream);
}
/* Called by gpgme to close a file */
static void
output_release (void *handle)
{
GOutputStream* output = handle;
g_return_if_fail (G_IS_OUTPUT_STREAM (output));
g_object_unref (output);
}
void
lsm_dom_document_save_to_stream (LsmDomDocument *document, GOutputStream *stream, GError **error)
{
g_return_if_fail (LSM_IS_DOM_DOCUMENT (document));
g_return_if_fail (G_IS_OUTPUT_STREAM (stream));
lsm_dom_node_write_to_stream (LSM_DOM_NODE (document), stream, error);
}
gboolean
byzanz_serialize (GOutputStream * stream,
guint64 msecs,
cairo_surface_t * surface,
const cairo_region_t * region,
GCancellable * cancellable,
GError ** error)
{
guint i, stride;
cairo_rectangle_int_t rect, extents;
guchar *data;
guint32 n;
int y, n_rects;
g_return_val_if_fail (G_IS_OUTPUT_STREAM (stream), FALSE);
g_return_val_if_fail ((surface == NULL) == (region == NULL), FALSE);
g_return_val_if_fail (region == NULL || !cairo_region_is_empty (region), FALSE);
if (!g_output_stream_write_all (stream, &msecs, sizeof (guint64), NULL, cancellable, error))
return FALSE;
if (surface == 0) {
n = 0;
return g_output_stream_write_all (stream, &n, sizeof (guint32), NULL, cancellable, error);
}
n = n_rects = cairo_region_num_rectangles (region);
if (!g_output_stream_write_all (stream, &n, sizeof (guint32), NULL, cancellable, error))
return FALSE;
for (i = 0; i < n; i++) {
gint32 ints[4];
cairo_region_get_rectangle (region, i, &rect);
ints[0] = rect.x, ints[1] = rect.y, ints[2] = rect.width, ints[3] = rect.height;
g_assert (sizeof (ints) == 16);
if (!g_output_stream_write_all (stream, ints, sizeof (ints), NULL, cancellable, error))
return FALSE;
}
stride = cairo_image_surface_get_stride (surface);
cairo_region_get_extents (region, &extents);
for (i = 0; i < n; i++) {
cairo_region_get_rectangle (region, i, &rect);
data = cairo_image_surface_get_data (surface)
+ stride * (rect.y - extents.y)
+ sizeof (guint32) * (rect.x - extents.x);
for (y = 0; y < rect.height; y++) {
if (!g_output_stream_write_all (G_OUTPUT_STREAM (stream), data,
rect.width * sizeof (guint32), NULL, cancellable, error))
return FALSE;
data += stride;
}
}
return TRUE;
}
static GstFlowReturn
gst_gio_base_sink_render (GstBaseSink * base_sink, GstBuffer * buffer)
{
GstGioBaseSink *sink = GST_GIO_BASE_SINK (base_sink);
gssize written;
GstMapInfo map;
gboolean success;
GError *err = NULL;
g_return_val_if_fail (G_IS_OUTPUT_STREAM (sink->stream), GST_FLOW_ERROR);
gst_buffer_map (buffer, &map, GST_MAP_READ);
GST_LOG_OBJECT (sink,
"writing %" G_GSIZE_FORMAT " bytes to offset %" G_GUINT64_FORMAT,
map.size, sink->position);
written =
g_output_stream_write (sink->stream, map.data, map.size, sink->cancel,
&err);
gst_buffer_unmap (buffer, &map);
success = (written >= 0);
if (G_UNLIKELY (success && written < map.size)) {
/* FIXME: Can this happen? Should we handle it gracefully? gnomevfssink
* doesn't... */
GST_ELEMENT_ERROR (sink, RESOURCE, WRITE, (NULL),
("Could not write to stream: (short write, only %"
G_GSSIZE_FORMAT " bytes of %" G_GSIZE_FORMAT " bytes written)",
written, map.size));
return GST_FLOW_ERROR;
}
if (success) {
sink->position += written;
return GST_FLOW_OK;
} else {
GstFlowReturn ret;
if (!gst_gio_error (sink, "g_output_stream_write", &err, &ret)) {
if (GST_GIO_ERROR_MATCHES (err, NO_SPACE)) {
GST_ELEMENT_ERROR (sink, RESOURCE, NO_SPACE_LEFT, (NULL),
("Could not write to stream: %s", err->message));
} else {
GST_ELEMENT_ERROR (sink, RESOURCE, WRITE, (NULL),
("Could not write to stream: %s", err->message));
}
g_clear_error (&err);
}
return ret;
}
}
static GIOStream *
my_io_stream_new (GInputStream *input_stream,
GOutputStream *output_stream)
{
MyIOStream *stream;
g_return_val_if_fail (G_IS_INPUT_STREAM (input_stream), NULL);
g_return_val_if_fail (G_IS_OUTPUT_STREAM (output_stream), NULL);
stream = MY_IO_STREAM (g_object_new (MY_TYPE_IO_STREAM, NULL));
stream->input_stream = g_object_ref (input_stream);
stream->output_stream = g_object_ref (output_stream);
return G_IO_STREAM (stream);
}
void
arv_dom_node_write_to_stream (ArvDomNode *self, GOutputStream *stream, GError **error)
{
ArvDomNodeClass *node_class;
g_return_if_fail (ARV_IS_DOM_NODE (self));
g_return_if_fail (G_IS_OUTPUT_STREAM (stream));
node_class = ARV_DOM_NODE_GET_CLASS (self);
if (node_class->write_to_stream != NULL)
node_class->write_to_stream (self, stream, error);
}
/**
* tmpl_template_expand:
* @self: A TmplTemplate.
* @stream: a #GOutputStream to write the results to
* @scope: (nullable): A #TmplScope containing state for the template, or %NULL.
* @cancellable: (nullable): An optional cancellable for the operation.
* @error: A location for a #GError, or %NULL.
*
* Expands a template into @stream using the @scope provided.
*
* @scope should have all of the variables set that are required to expand
* the template, or you will get a symbol reference error and %FALSE will
* be returned.
*
* To set a symbol value, get the symbol with tmpl_scope_get() and assign
* a value using tmpl_scope_assign_value() or similar methods.
*
* Returns: %TRUE if successful, otherwise %FALSE and @error is set.
*/
gboolean
tmpl_template_expand (TmplTemplate *self,
GOutputStream *stream,
TmplScope *scope,
GCancellable *cancellable,
GError **error)
{
TmplTemplatePrivate *priv = tmpl_template_get_instance_private (self);
TmplTemplateExpandState state = { 0 };
TmplScope *local_scope = NULL;
g_return_val_if_fail (TMPL_IS_TEMPLATE (self), FALSE);
g_return_val_if_fail (G_IS_OUTPUT_STREAM (stream), FALSE);
g_return_val_if_fail (!cancellable || G_IS_CANCELLABLE (cancellable), FALSE);
if (priv->parser == NULL)
{
g_set_error (error,
TMPL_ERROR,
TMPL_ERROR_INVALID_STATE,
_("Must parse template before expanding"));
return FALSE;
}
if (scope == NULL)
scope = local_scope = tmpl_scope_new ();
state.root = tmpl_parser_get_root (priv->parser);
state.self = self;
state.output = g_string_new (NULL);
state.result = TRUE;
state.error = error;
state.scope = scope;
tmpl_node_visit_children (state.root, tmpl_template_expand_visitor, &state);
if (state.result != FALSE)
state.result = g_output_stream_write_all (stream,
state.output->str,
state.output->len,
NULL,
cancellable,
error);
g_string_free (state.output, TRUE);
if (local_scope != NULL)
tmpl_scope_unref (local_scope);
return state.result;
}
static void
test_io_stream_properties (NiceAddress *addr)
{
NiceAgent *agent;
guint stream_id;
GIOStream *io_stream;
GInputStream *input_stream;
GOutputStream *output_stream;
agent = nice_agent_new_reliable (NULL, NICE_COMPATIBILITY_RFC5245);
nice_agent_add_local_address (agent, addr);
stream_id = nice_agent_add_stream (agent, 1);
/* Try building an I/O stream around it. */
io_stream = nice_agent_get_io_stream (agent, stream_id, 1);
g_assert (G_IS_IO_STREAM (io_stream));
g_assert (NICE_IS_IO_STREAM (io_stream));
/* Check various initial properties. */
g_assert (!g_io_stream_is_closed (G_IO_STREAM (io_stream)));
g_assert (!g_io_stream_has_pending (G_IO_STREAM (io_stream)));
/* Check the input stream’s properties. */
input_stream = g_io_stream_get_input_stream (G_IO_STREAM (io_stream));
g_assert (G_IS_INPUT_STREAM (input_stream));
g_assert (NICE_IS_INPUT_STREAM (input_stream));
g_assert (!g_input_stream_is_closed (input_stream));
g_assert (!g_input_stream_has_pending (input_stream));
/* Check the output stream’s properties. */
output_stream = g_io_stream_get_output_stream (G_IO_STREAM (io_stream));
g_assert (G_IS_OUTPUT_STREAM (output_stream));
g_assert (NICE_IS_OUTPUT_STREAM (output_stream));
g_assert (!g_output_stream_is_closing (output_stream));
g_assert (!g_output_stream_is_closed (output_stream));
g_assert (!g_output_stream_has_pending (output_stream));
/* Remove the component and check that the I/O streams close. */
nice_agent_remove_stream (agent, stream_id);
g_assert (g_io_stream_is_closed (G_IO_STREAM (io_stream)));
g_assert (g_input_stream_is_closed (input_stream));
g_assert (g_output_stream_is_closed (output_stream));
g_object_unref (io_stream);
g_object_unref (agent);
}
gpgme_data_t
seahorse_gpgme_data_output (GOutputStream* output)
{
gpgme_error_t gerr;
gpgme_data_t ret = NULL;
g_return_val_if_fail (G_IS_OUTPUT_STREAM (output), NULL);
gerr = gpgme_data_new_from_cbs (&ret, &output_cbs, output);
if (!GPG_IS_OK (gerr))
return NULL;
g_object_ref (output);
return ret;
}
static gboolean
gst_gio_base_sink_stop (GstBaseSink * base_sink)
{
GstGioBaseSink *sink = GST_GIO_BASE_SINK (base_sink);
GstGioBaseSinkClass *klass = GST_GIO_BASE_SINK_GET_CLASS (sink);
gboolean success;
GError *err = NULL;
if (klass->close_on_stop && G_IS_OUTPUT_STREAM (sink->stream)) {
GST_DEBUG_OBJECT (sink, "closing stream");
/* FIXME: can block but unfortunately we can't use async operations
* here because they require a running main loop */
success = g_output_stream_close (sink->stream, sink->cancel, &err);
if (!success && !gst_gio_error (sink, "g_output_stream_close", &err, NULL)) {
GST_ELEMENT_WARNING (sink, RESOURCE, CLOSE, (NULL),
("gio_output_stream_close failed: %s", err->message));
g_clear_error (&err);
} else if (!success) {
GST_ELEMENT_WARNING (sink, RESOURCE, CLOSE, (NULL),
("g_output_stream_close failed"));
} else {
GST_DEBUG_OBJECT (sink, "g_outut_stream_close succeeded");
}
g_object_unref (sink->stream);
sink->stream = NULL;
} else {
success = g_output_stream_flush (sink->stream, sink->cancel, &err);
if (!success && !gst_gio_error (sink, "g_output_stream_flush", &err, NULL)) {
GST_ELEMENT_WARNING (sink, RESOURCE, CLOSE, (NULL),
("gio_output_stream_flush failed: %s", err->message));
g_clear_error (&err);
} else if (!success) {
GST_ELEMENT_WARNING (sink, RESOURCE, CLOSE, (NULL),
("g_output_stream_flush failed"));
} else {
GST_DEBUG_OBJECT (sink, "g_outut_stream_flush succeeded");
}
g_object_unref (sink->stream);
sink->stream = NULL;
}
return TRUE;
}
/**
* gb_project_format_save_async:
* @format: (in): A #GbProjectFormat.
* @stream: (in): A #GOutputStream.
* @cancellable: (in) (allow-none): A #GCancellable or %NULL.
* @callback: (in): A callback to notify of completion.
* @user_data: (in): User data for @callback.
*
* Asynchronously saves @project as to @stream using the format implemented
* by @format. The default format is a JSON encoded document.
*/
void
gb_project_format_save_async (GbProjectFormat *format,
GbProject *project,
GOutputStream *stream,
GCancellable *cancellable,
GAsyncReadyCallback callback,
gpointer user_data)
{
ENTRY;
g_return_if_fail(GB_IS_PROJECT_FORMAT(format));
g_return_if_fail(G_IS_OUTPUT_STREAM(stream));
g_return_if_fail(!cancellable || G_IS_CANCELLABLE(cancellable));
g_return_if_fail(callback != NULL);
GB_PROJECT_FORMAT_GET_CLASS(format)->save_async(format, project, stream, cancellable, callback, user_data);
EXIT;
}
/* Called by gpgme to read data */
static ssize_t
output_write(void *handle, const void *buffer, size_t size)
{
GOutputStream* output = handle;
GError *err = NULL;
gsize written;
g_return_val_if_fail (G_IS_OUTPUT_STREAM (output), -1);
if (!g_output_stream_write_all (output, buffer, size, &written, NULL, &err))
return handle_gio_error (err);
if (!g_output_stream_flush (output, NULL, &err))
return handle_gio_error (err);
return written;
}
void
gitg_io_set_output (GitgIO *io,
GOutputStream *stream)
{
g_return_if_fail (GITG_IS_IO (io));
g_return_if_fail (G_IS_OUTPUT_STREAM (stream));
if (io->priv->output)
{
g_object_unref (io->priv->output);
io->priv->output = NULL;
}
if (stream)
{
io->priv->output = g_object_ref (stream);
}
}
/**
* camel_stream_vfs_new_with_stream:
* @stream: a GInputStream or GOutputStream instance
*
* Creates a new fs stream using the given gio stream @stream as the
* backing store. When the stream is destroyed, the file descriptor
* will be closed. This will not increase reference counter on the stream.
*
* Returns a new #CamelStreamVFS
**/
CamelStream *
camel_stream_vfs_new_with_stream (GObject *stream)
{
CamelStreamVFS *stream_vfs;
errno = EINVAL;
if (!stream)
return NULL;
g_return_val_if_fail (G_IS_OUTPUT_STREAM (stream) || G_IS_INPUT_STREAM (stream), NULL);
errno = 0;
stream_vfs = CAMEL_STREAM_VFS (camel_object_new (camel_stream_vfs_get_type ()));
stream_vfs->stream = stream;
return CAMEL_STREAM (stream_vfs);
}
static ssize_t
stream_write (CamelStream *stream, const char *buffer, size_t n)
{
gssize nwritten;
GError *error = NULL;
CamelStreamVFS *stream_vfs = CAMEL_STREAM_VFS (stream);
g_return_val_if_fail (G_IS_OUTPUT_STREAM (stream_vfs->stream), 0);
nwritten = g_output_stream_write (G_OUTPUT_STREAM (stream_vfs->stream), buffer, n, NULL, &error);
if (error) {
g_warning ("%s", error->message);
g_error_free (error);
}
return nwritten;
}
gboolean
gimp_levels_config_save_cruft (GimpLevelsConfig *config,
GOutputStream *output,
GError **error)
{
GString *string;
gsize bytes_written;
gint i;
g_return_val_if_fail (GIMP_IS_LEVELS_CONFIG (config), FALSE);
g_return_val_if_fail (G_IS_OUTPUT_STREAM (output), FALSE);
g_return_val_if_fail (error == NULL || *error == NULL, FALSE);
string = g_string_new ("# GIMP Levels File\n");
for (i = 0; i < 5; i++)
{
gchar buf[G_ASCII_DTOSTR_BUF_SIZE];
g_string_append_printf (string,
"%d %d %d %d %s\n",
(gint) (config->low_input[i] * 255.999),
(gint) (config->high_input[i] * 255.999),
(gint) (config->low_output[i] * 255.999),
(gint) (config->high_output[i] * 255.999),
g_ascii_formatd (buf, G_ASCII_DTOSTR_BUF_SIZE, "%f",
config->gamma[i]));
}
if (! g_output_stream_write_all (output, string->str, string->len,
&bytes_written, NULL, error) ||
bytes_written != string->len)
{
g_prefix_error (error, _("Writing levels file failed: "));
g_string_free (string, TRUE);
return FALSE;
}
g_string_free (string, TRUE);
return TRUE;
}
static int
stream_flush (CamelStream *stream)
{
CamelStreamVFS *stream_vfs = CAMEL_STREAM_VFS (stream);
GError *error = NULL;
g_return_val_if_fail (CAMEL_IS_STREAM_VFS (stream) && stream_vfs != NULL, -1);
g_return_val_if_fail (stream_vfs->stream != NULL, -1);
g_return_val_if_fail (G_IS_OUTPUT_STREAM (stream_vfs->stream), -1);
g_output_stream_flush (G_OUTPUT_STREAM (stream_vfs->stream), NULL, &error);
if (error) {
g_warning ("%s", error->message);
g_error_free (error);
return -1;
}
return 0;
}
/**
* gimp_config_serialize_to_stream:
* @config: a #GObject that implements the #GimpConfigInterface.
* @output: the #GOutputStream to write the configuration to.
* @header: optional file header (must be ASCII only)
* @footer: optional file footer (must be ASCII only)
* @data: user data passed to the serialize implementation.
* @error: return location for a possible error
*
* Serializes the object properties of @config to the stream specified
* by @output.
*
* Return value: %TRUE if serialization succeeded, %FALSE otherwise.
*
* Since: 2.10
**/
gboolean
gimp_config_serialize_to_stream (GimpConfig *config,
GOutputStream *output,
const gchar *header,
const gchar *footer,
gpointer data,
GError **error)
{
GimpConfigWriter *writer;
g_return_val_if_fail (GIMP_IS_CONFIG (config), FALSE);
g_return_val_if_fail (G_IS_OUTPUT_STREAM (output), FALSE);
g_return_val_if_fail (error == NULL || *error == NULL, FALSE);
writer = gimp_config_writer_new_stream (output, header, error);
if (!writer)
return FALSE;
GIMP_CONFIG_GET_INTERFACE (config)->serialize (config, writer, data);
return gimp_config_writer_finish (writer, footer, error);
}
static void
save_snapshot_replace_cb (GFile *snapshot_file,
GAsyncResult *result,
GSimpleAsyncResult *simple)
{
GObject *object;
SaveContext *context;
GFileOutputStream *output_stream;
GError *local_error = NULL;
context = g_simple_async_result_get_op_res_gpointer (simple);
/* Output stream might be NULL, so don't use cast macro. */
output_stream = g_file_replace_finish (
snapshot_file, result, &local_error);
context->output_stream = (GOutputStream *) output_stream;
if (local_error != NULL) {
g_warn_if_fail (output_stream == NULL);
g_simple_async_result_take_error (simple, local_error);
g_simple_async_result_complete (simple);
g_object_unref (simple);
return;
}
g_return_if_fail (G_IS_OUTPUT_STREAM (output_stream));
/* g_async_result_get_source_object() returns a new reference. */
object = g_async_result_get_source_object (G_ASYNC_RESULT (simple));
/* Extract a MIME message from the composer. */
e_msg_composer_get_message_draft (
E_MSG_COMPOSER (object), G_PRIORITY_DEFAULT,
context->cancellable, (GAsyncReadyCallback)
save_snapshot_get_message_cb, simple);
g_object_unref (object);
}
gboolean
byzanz_serialize_header (GOutputStream * stream,
guint width,
guint height,
GCancellable * cancellable,
GError ** error)
{
guint32 w, h;
guchar endian;
g_return_val_if_fail (G_IS_OUTPUT_STREAM (stream), FALSE);
g_return_val_if_fail (width <= G_MAXUINT32, FALSE);
g_return_val_if_fail (height <= G_MAXUINT32, FALSE);
w = width;
h = height;
endian = byte_order_to_uchar ();
return g_output_stream_write_all (stream, IDENTIFICATION, strlen (IDENTIFICATION), NULL, cancellable, error) &&
g_output_stream_write_all (stream, &endian, sizeof (guchar), NULL, cancellable, error) &&
g_output_stream_write_all (stream, &w, sizeof (guint32), NULL, cancellable, error) &&
g_output_stream_write_all (stream, &h, sizeof (guint32), NULL, cancellable, error);
}
/**
* gimp_config_writer_new_stream:
* @output: a #GOutputStream
* @header: text to include as comment at the top of the file
* @error: return location for errors
*
* Creates a new #GimpConfigWriter and sets it up to write to
* @output.
*
* Return value: a new #GimpConfigWriter or %NULL in case of an error
*
* Since: GIMP 2.10
**/
GimpConfigWriter *
gimp_config_writer_new_stream (GOutputStream *output,
const gchar *header,
GError **error)
{
GimpConfigWriter *writer;
g_return_val_if_fail (G_IS_OUTPUT_STREAM (output), NULL);
g_return_val_if_fail (error == NULL || *error == NULL, NULL);
writer = g_slice_new0 (GimpConfigWriter);
writer->output = g_object_ref (output);
writer->buffer = g_string_new (NULL);
if (header)
{
gimp_config_writer_comment (writer, header);
gimp_config_writer_linefeed (writer);
}
return writer;
}
/* Called from gpgme to seek a file */
static off_t
output_seek (void *handle, off_t offset, int whence)
{
GSeekable *seek;
GSeekType from;
GError *err = NULL;
GOutputStream* output = handle;
g_return_val_if_fail (G_IS_OUTPUT_STREAM (output), -1);
if (!G_IS_SEEKABLE (output)) {
errno = EOPNOTSUPP;
return -1;
}
switch(whence)
{
case SEEK_SET:
from = G_SEEK_SET;
break;
case SEEK_CUR:
from = G_SEEK_CUR;
break;
case SEEK_END:
from = G_SEEK_END;
break;
default:
g_assert_not_reached();
break;
};
seek = G_SEEKABLE (output);
if (!g_seekable_seek (seek, offset, from, NULL, &err))
return handle_gio_error (err);
return offset;
}
static gboolean
gst_gio_base_sink_start (GstBaseSink * base_sink)
{
GstGioBaseSink *sink = GST_GIO_BASE_SINK (base_sink);
GstGioBaseSinkClass *gbsink_class = GST_GIO_BASE_SINK_GET_CLASS (sink);
sink->position = 0;
/* FIXME: This will likely block */
sink->stream = gbsink_class->get_stream (sink);
if (G_UNLIKELY (!G_IS_OUTPUT_STREAM (sink->stream))) {
GST_ELEMENT_ERROR (sink, RESOURCE, OPEN_WRITE, (NULL),
("No output stream provided by subclass"));
return FALSE;
} else if (G_UNLIKELY (g_output_stream_is_closed (sink->stream))) {
GST_ELEMENT_ERROR (sink, LIBRARY, FAILED, (NULL),
("Output stream is already closed"));
return FALSE;
}
GST_DEBUG_OBJECT (sink, "started sink");
return TRUE;
}
gboolean
gimp_output_stream_vprintf (GOutputStream *stream,
gsize *bytes_written,
GCancellable *cancellable,
GError **error,
const gchar *format,
va_list args)
{
gchar *text;
gboolean success;
g_return_val_if_fail (G_IS_OUTPUT_STREAM (stream), FALSE);
g_return_val_if_fail (cancellable == NULL || G_IS_CANCELLABLE (stream), FALSE);
g_return_val_if_fail (error == NULL || *error == NULL, FALSE);
g_return_val_if_fail (format != NULL, FALSE);
text = g_strdup_vprintf (format, args);
success = g_output_stream_write_all (stream,
text, strlen (text),
bytes_written, cancellable, error);
g_free (text);
return success;
}
*
* On error -1 is returned and @error is set accordingly.
*
* Return value: Number of bytes written, or -1 on error
**/
gssize
g_output_stream_write (GOutputStream *stream,
const void *buffer,
gsize count,
GCancellable *cancellable,
GError **error)
{
GOutputStreamClass *class;
gssize res;
g_return_val_if_fail (G_IS_OUTPUT_STREAM (stream), -1);
g_return_val_if_fail (buffer != NULL, 0);
if (count == 0)
return 0;
if (((gssize) count) < 0)
{
g_set_error (error, G_IO_ERROR, G_IO_ERROR_INVALID_ARGUMENT,
_("Too large count value passed to %s"), G_STRFUNC);
return -1;
}
class = G_OUTPUT_STREAM_GET_CLASS (stream);
if (class->write_fn == NULL)
