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/*
* script-callback.c - script callbacks management
*
* Copyright (C) 2003-2016 Sébastien Helleu <flashcode@flashtux.org>
*
* This file is part of WeeChat, the extensible chat client.
*
* WeeChat 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 3 of the License, or
* (at your option) any later version.
*
* WeeChat 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 WeeChat. If not, see <http://www.gnu.org/licenses/>.
*/
#include <stdlib.h>
#include <unistd.h>
#include <stdio.h>
#include <string.h>
#include <stddef.h>
#include "weechat-plugin.h"
#include "plugin-script.h"
#include "plugin-script-callback.h"
/*
* Allocates a new callback and initializes it.
*/
struct t_plugin_script_cb *
plugin_script_callback_alloc ()
{
struct t_plugin_script_cb *new_script_callback;
new_script_callback = malloc (sizeof (*new_script_callback));
if (new_script_callback)
{
new_script_callback->script = NULL;
new_script_callback->function = NULL;
new_script_callback->data = NULL;
new_script_callback->config_file = NULL;
new_script_callback->config_section = NULL;
new_script_callback->config_option = NULL;
new_script_callback->hook = NULL;
new_script_callback->buffer = NULL;
new_script_callback->bar_item = NULL;
new_script_callback->upgrade_file = NULL;
return new_script_callback;
}
return NULL;
}
/*
* Adds a callback to list of callbacks.
*
* Returns pointer to new callback, NULL if error.
*/
struct t_plugin_script_cb *
plugin_script_callback_add (struct t_plugin_script *script,
const char *function,
const char *data)
{
struct t_plugin_script_cb *script_cb;
if (!script)
return NULL;
script_cb = plugin_script_callback_alloc ();
if (!script_cb)
return NULL;
/* initialize callback */
script_cb->script = script;
script_cb->function = (function) ? strdup (function) : NULL;
script_cb->data = (data) ? strdup (data) : NULL;
/* add callback to list */
if (script->callbacks)
script->callbacks->prev_callback = script_cb;
script_cb->prev_callback = NULL;
script_cb->next_callback = script->callbacks;
script->callbacks = script_cb;
return script_cb;
}
/*
* Frees data of a script callback.
*/
void
plugin_script_callback_free_data (struct t_plugin_script_cb *script_callback)
{
if (script_callback->function)
free (script_callback->function);
if (script_callback->data)
free (script_callback->data);
}
/*
* Removes a callback from a script.
*/
void
plugin_script_callback_remove (struct t_plugin_script *script,
struct t_plugin_script_cb *script_callback)
{
/* remove callback from list */
if (script_callback->prev_callback)
(script_callback->prev_callback)->next_callback =
script_callback->next_callback;
if (script_callback->next_callback)
(script_callback->next_callback)->prev_callback =
script_callback->prev_callback;
if (script->callbacks == script_callback)
script->callbacks = script_callback->next_callback;
plugin_script_callback_free_data (script_callback);
free (script_callback);
}
/*
* Removes all callbacks from a script.
*/
void
plugin_script_callback_remove_all (struct t_plugin_script *script)
{
while (script->callbacks)
{
plugin_script_callback_remove (script, script->callbacks);
}
}
/*
* Gets hdata for script callback.
*/
struct t_hdata *
plugin_script_callback_hdata_callback_cb (void *data,
const char *hdata_name)
{
struct t_weechat_plugin *weechat_plugin;
struct t_hdata *hdata;
char str_hdata_script[128];
weechat_plugin = (struct t_weechat_plugin *)data;
hdata = weechat_hdata_new (hdata_name, "prev_callback", "next_callback",
0, 0, NULL, NULL);
if (hdata)
{
snprintf (str_hdata_script, sizeof (str_hdata_script),
"%s_script", weechat_plugin->name);
WEECHAT_HDATA_VAR(struct t_plugin_script_cb, script, POINTER, 0, NULL, str_hdata_script);
WEECHAT_HDATA_VAR(struct t_plugin_script_cb, function, STRING, 0, NULL, NULL);
WEECHAT_HDATA_VAR(struct t_plugin_script_cb, data, STRING, 0, NULL, NULL);
WEECHAT_HDATA_VAR(struct t_plugin_script_cb, config_file, POINTER, 0, NULL, "config_file");
WEECHAT_HDATA_VAR(struct t_plugin_script_cb, config_section, POINTER, 0, NULL, "config_section");
WEECHAT_HDATA_VAR(struct t_plugin_script_cb, config_option, POINTER, 0, NULL, "config_option");
WEECHAT_HDATA_VAR(struct t_plugin_script_cb, hook, POINTER, 0, NULL, NULL);
WEECHAT_HDATA_VAR(struct t_plugin_script_cb, buffer, POINTER, 0, NULL, "buffer");
WEECHAT_HDATA_VAR(struct t_plugin_script_cb, bar_item, POINTER, 0, NULL, "bar_item");
WEECHAT_HDATA_VAR(struct t_plugin_script_cb, upgrade_file, POINTER, 0, NULL, NULL);
WEECHAT_HDATA_VAR(struct t_plugin_script_cb, prev_callback, POINTER, 0, NULL, hdata_name);
WEECHAT_HDATA_VAR(struct t_plugin_script_cb, next_callback, POINTER, 0, NULL, hdata_name);
}
return hdata;
}
/*
* Prints callbacks in WeeChat log file (usually for crash dump).
*/
void
plugin_script_callback_print_log (struct t_weechat_plugin *weechat_plugin,
struct t_plugin_script_cb *script_callback)
{
weechat_log_printf ("");
weechat_log_printf (" [callback (addr:0x%lx)]", script_callback);
weechat_log_printf (" script. . . . . . . : 0x%lx", script_callback->script);
weechat_log_printf (" function. . . . . . : '%s'", script_callback->function);
weechat_log_printf (" data. . . . . . . . : '%s'", script_callback->data);
weechat_log_printf (" config_file . . . . : 0x%lx", script_callback->config_file);
weechat_log_printf (" config_section. . . : 0x%lx", script_callback->config_section);
weechat_log_printf (" config_option . . . : 0x%lx", script_callback->config_option);
weechat_log_printf (" hook. . . . . . . . : 0x%lx", script_callback->hook);
weechat_log_printf (" buffer. . . . . . . : 0x%lx", script_callback->buffer);
weechat_log_printf (" bar_item. . . . . . : 0x%lx", script_callback->bar_item);
weechat_log_printf (" upgrade_file. . . . : 0x%lx", script_callback->upgrade_file);
weechat_log_printf (" prev_callback . . . : 0x%lx", script_callback->prev_callback);
weechat_log_printf (" next_callback . . . : 0x%lx", script_callback->next_callback);
}
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