pidgin/pidgin

Make PurplePluginProtocolInfo definitions consistent
release-2.x.y
2020-05-20, David Woodhouse
159344ba2a49
Make PurplePluginProtocolInfo definitions consistent

Since we can't use C99 structure initialisers, we have to manually add
new NULL fields to all protocols whenever we extend the structure.

Make it slightly easier to script that, by making the current last
field (get_cb_alias) consistent in all cases. In particular, there's
no reason *not* to have the trailing comma, as most already do.

Now I can add a new field to the PRPL by doing something like this...

PROTOFILES=`grep -rl '[A-Za-z_][A-Za-z0-9_]*,[[:space:]]*/\* get_cb_alias \*/' libpurple/protocols/ `
sed '/\/\* get_cb_alias \*\//{p;s/[A-Za-z_][A-Za-
/**
* @file imgstore.c IM Image Store API
* @ingroup core
*/
/* purple
*
* Purple is the legal property of its developers, whose names are too numerous
* to list here. Please refer to the COPYRIGHT file distributed with this
* source distribution.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02111-1301 USA
*
*/
#include "internal.h"
#include "dbus-maybe.h"
#include "debug.h"
#include "imgstore.h"
#include "util.h"
static GHashTable *imgstore;
static unsigned int nextid = 0;
/*
* NOTE: purple_imgstore_add() creates these without zeroing the memory, so
* NOTE: make sure to update that function when adding members.
*/
struct _PurpleStoredImage
{
int id;
guint8 refcount;
size_t size; /**< The image data's size. */
char *filename; /**< The filename (for the UI) */
gpointer data; /**< The image data. */
};
PurpleStoredImage *
purple_imgstore_add(gpointer data, size_t size, const char *filename)
{
PurpleStoredImage *img;
g_return_val_if_fail(data != NULL, NULL);
g_return_val_if_fail(size > 0, NULL);
img = g_new(PurpleStoredImage, 1);
PURPLE_DBUS_REGISTER_POINTER(img, PurpleStoredImage);
img->data = data;
img->size = size;
img->filename = g_strdup(filename);
img->refcount = 1;
img->id = 0;
return img;
}
PurpleStoredImage *
purple_imgstore_new_from_file(const char *path)
{
gchar *data = NULL;
size_t len;
GError *err = NULL;
g_return_val_if_fail(path != NULL && *path != '\0', NULL);
if (!g_file_get_contents(path, &data, &len, &err)) {
purple_debug_error("imgstore", "Error reading %s: %s\n",
path, err->message);
g_error_free(err);
return NULL;
}
return purple_imgstore_add(data, len, path);
}
int
purple_imgstore_add_with_id(gpointer data, size_t size, const char *filename)
{
PurpleStoredImage *img = purple_imgstore_add(data, size, filename);
if (!img) {
return 0;
}
/*
* Use the next unused id number. We do it in a loop on the
* off chance that nextid wraps back around to 0 and the hash
* table still contains entries from the first time around.
*/
do {
img->id = ++nextid;
} while (img->id == 0 || g_hash_table_lookup(imgstore, &(img->id)) != NULL);
g_hash_table_insert(imgstore, &(img->id), img);
return img->id;
}
PurpleStoredImage *purple_imgstore_find_by_id(int id)
{
PurpleStoredImage *img = g_hash_table_lookup(imgstore, &id);
if (img != NULL)
purple_debug_misc("imgstore", "retrieved image id %d\n", img->id);
return img;
}
gconstpointer purple_imgstore_get_data(PurpleStoredImage *img)
{
g_return_val_if_fail(img != NULL, NULL);
return img->data;
}
size_t purple_imgstore_get_size(PurpleStoredImage *img)
{
g_return_val_if_fail(img != NULL, 0);
return img->size;
}
const char *purple_imgstore_get_filename(const PurpleStoredImage *img)
{
g_return_val_if_fail(img != NULL, NULL);
return img->filename;
}
const char *purple_imgstore_get_extension(PurpleStoredImage *img)
{
g_return_val_if_fail(img != NULL, NULL);
return purple_util_get_image_extension(img->data, img->size);
}
void purple_imgstore_ref_by_id(int id)
{
PurpleStoredImage *img = purple_imgstore_find_by_id(id);
g_return_if_fail(img != NULL);
purple_imgstore_ref(img);
}
void purple_imgstore_unref_by_id(int id)
{
PurpleStoredImage *img = purple_imgstore_find_by_id(id);
g_return_if_fail(img != NULL);
purple_imgstore_unref(img);
}
PurpleStoredImage *
purple_imgstore_ref(PurpleStoredImage *img)
{
g_return_val_if_fail(img != NULL, NULL);
img->refcount++;
return img;
}
PurpleStoredImage *
purple_imgstore_unref(PurpleStoredImage *img)
{
if (img == NULL)
return NULL;
g_return_val_if_fail(img->refcount > 0, NULL);
img->refcount--;
if (img->refcount == 0)
{
purple_signal_emit(purple_imgstore_get_handle(),
"image-deleting", img);
if (img->id)
g_hash_table_remove(imgstore, &img->id);
g_free(img->data);
g_free(img->filename);
PURPLE_DBUS_UNREGISTER_POINTER(img);
g_free(img);
img = NULL;
}
return img;
}
void *
purple_imgstore_get_handle()
{
static int handle;
return &handle;
}
void
purple_imgstore_init()
{
void *handle = purple_imgstore_get_handle();
purple_signal_register(handle, "image-deleting",
purple_marshal_VOID__POINTER, NULL,
1,
purple_value_new(PURPLE_TYPE_SUBTYPE,
PURPLE_SUBTYPE_STORED_IMAGE));
imgstore = g_hash_table_new(g_int_hash, g_int_equal);
}
void
purple_imgstore_uninit()
{
g_hash_table_destroy(imgstore);
purple_signals_unregister_by_instance(purple_imgstore_get_handle());
}