metamod-r/metamod/src/plinfo.h

#pragma once

// Flags for plugin to indicate when it can be be loaded/unloaded.
// NOTE: order is crucial, as greater/less comparisons are made.
enum PLUG_LOADTIME
{
	PT_NEVER = 0,
	PT_STARTUP,		// should only be loaded/unloaded at initial hlds execution
	PT_CHANGELEVEL,		// can be loaded/unloaded between maps
	PT_ANYTIME,		// can be loaded/unloaded at any time
	PT_ANYPAUSE,		// can be loaded/unloaded at any time, and can be "paused" during a map
};

// Flags to indicate why the plugin is being unloaded.
enum PL_UNLOAD_REASON
{
	PNL_NULL = 0,
	PNL_INI_DELETED,		// was deleted from plugins.ini
	PNL_FILE_NEWER,			// file on disk is newer than last load
	PNL_COMMAND,			// requested by server/console command
	PNL_CMD_FORCED,			// forced by server/console command
	PNL_DELAYED,			// delayed from previous request; can't tell origin

					// only used for 'real_reason' on MPlugin::unload()
	PNL_PLUGIN,			// requested by plugin function call
	PNL_PLG_FORCED,			// forced by plugin function call
	PNL_RELOAD,			// forced unload by reload()
};

// Information plugin provides about itself.
struct plugin_info_t
{
	const char *ifvers;		// meta_interface version
	const char *name;		// full name of plugin
	const char *version;		// version
	const char *date;		// date
	const char *author;		// author name/email
	const char *url;		// URL
	const char *logtag;		// log message prefix (unused right now)
	PLUG_LOADTIME loadable;		// when loadable
	PLUG_LOADTIME unloadable;	// when unloadable
};

extern plugin_info_t Plugin_info;

// Plugin identifier, passed to all Meta Utility Functions.
typedef plugin_info_t *plid_t;
#define PLID &Plugin_info