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/* wrapper/plugins.h -- struct definitions and basic functions for rvs plugins
system depends: this file is truly system-independant
Copyright (C) 2009 Luke Shumaker
system depends: this file is completely system-independant
This file is part of rvs.
rvs 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, or (at your
option) any later version.
rvs 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 rvs; see the file COPYING.
If not, write to the Free Software Foundation,
59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#ifndef FILE_plugins_h_SEEN
#define FILE_plugins_h_SEEN
#include "rvs.h"
/* a plugin */
/* a generic binary tree emulating a n-ary tree via linked list */
struct plugin
{
char *name;
struct plugin_command *commands;/* left leaf */
struct plugin *next; /* right leaf */
};
/* a single plugin command */
struct plugin_command
{
/* node */
char *name;
struct plugin *plugin; /* which plugin does it belong to? */
struct plugin_command *depend; /* what does this depend on? */
char *depends;/* what does this depend on? (string) */
/* linked list */
struct plugin_command *next;
/* depends, linked list */
/* for a dependancy tree, this seems like it should be a *\
\* separate struct, but this is the simplest way. */
struct plugin_command *d_child;
struct plugin_command *d_next;
};
/* create a blank plugin_command */
struct plugin_command *
plugin_mk_command()
{
struct plugin_command *command;
command=(struct plugin_command *)xmalloc(sizeof(*command));
/* node */
command->name=NULL;
command->plugin=NULL;
command->depend=NULL;
command->depends=NULL;
/* linked list */
command->next=NULL;
/* depends */
command->d_child=NULL;
command->d_next=NULL;
return command;
}
void
plugin_free_command(struct plugin_command *command)
{
if (command!=NULL) {
plugin_free_command(command->next);
xfree(command->name);
xfree(command->depends);
xfree(command);
}
}
void
plugin_free_plugin(struct plugin *plugin)
{
if (plugin!=NULL) {
xfree(plugin->name);
plugin_free_command(plugin->commands);
plugin_free_plugin(plugin->next);
xfree(plugin);
}
}
#endif
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