Meta-server related functions. More...

#include "global.h"
#include <ctype.h>
#include <pthread.h>
#include <stdlib.h>
#include <string.h>
#include <sys/types.h>
#include <netinet/in.h>
#include <netdb.h>
#include <arpa/inet.h>
#include "metaserver2.h"
#include "version.h"

Include dependency graph for metaserver.c:

Go to the source code of this file.

Data Structures
struct	_LocalMeta2Info
	LocalMeta2Info basically holds all the non server metaserver2 information that we read from the metaserver2 file. More...

struct	_MetaServer2
	This is a linked list of all the metaservers - never really know how many we have. More...

Typedefs
typedef struct _LocalMeta2Info	LocalMeta2Info
	LocalMeta2Info basically holds all the non server metaserver2 information that we read from the metaserver2 file. More...

typedef struct _MetaServer2	MetaServer2
	This is a linked list of all the metaservers - never really know how many we have. More...

Functions
static void	free_metaserver2 (MetaServer2 *ms)
	This frees any data associated with the MetaServer2 info, including the pointer itself. More...

int	metaserver2_init (void)
	This initializes the metaserver2 logic - it reads the metaserver2 file, storing the values away. More...

void *	metaserver2_thread (void *junk)
	metserver2_thread is the function called from pthread_create. More...

static void	metaserver2_updates (void)
	This sends an update to the various metaservers. More...

static size_t	metaserver2_writer (void ptr, size_t size, size_t nmemb, void data)
	Handles writing of HTTP request data from the metaserver2. More...

void	metaserver_update (void)
	Updates our info in the metaserver Note that this is used for both metaserver1 and metaserver2 - for metaserver2, it just copies dynamic data into private data structure, doing locking in the process. More...

Variables
static LocalMeta2Info	local_info
	Non volatile information on the server. More...

static MetaServer2 *	metaserver2
	Metaservers to send information to. More...

MetaServer2_UpdateInfo	metaserver2_updateinfo
	Statistics on players and such sent to the metaserver2. More...

pthread_mutex_t	ms2_info_mutex
	Mutex to protect access to metaserver2_updateinfo. More...

Detailed Description

Meta-server related functions.

Date: 2003-12-02

Definition in file metaserver.c.

Typedef Documentation

◆ LocalMeta2Info

typedef struct _LocalMeta2Info LocalMeta2Info

LocalMeta2Info basically holds all the non server metaserver2 information that we read from the metaserver2 file.

Could just have individual variables, but doing it as a structure is cleaner I think, and might be more flexible if in the future, we want to pass this information to other functions (like plugin or something)

◆ MetaServer2

typedef struct _MetaServer2 MetaServer2

This is a linked list of all the metaservers - never really know how many we have.

Function Documentation

◆ free_metaserver2()

static void free_metaserver2 ( MetaServer2 * ms )

static

This frees any data associated with the MetaServer2 info, including the pointer itself.

Caller is responsible for updating pointers (ms->next) - really only used when wanting to free all data.

Parameters

ms	data to free, pointer becomes invalid.

Definition at line 144 of file metaserver.c.

References _MetaServer2::hostname.

Referenced by metaserver2_init().

Here is the caller graph for this function:

◆ metaserver2_init()

int metaserver2_init ( void )

This initializes the metaserver2 logic - it reads the metaserver2 file, storing the values away.

Note that it may be possible/desirable for the server to re-read the values and restart connections (for example, a new metaserver has been added and you want to start updates to it immediately and not restart the server). Because of that, there is some extra logic (has_init) to try to take that into account.

Returns: 1 if we will be updating the metaserver, 0 if no metaserver updates

Definition at line 163 of file metaserver.c.

References _LocalMeta2Info::archbase, _LocalMeta2Info::codebase, Settings::confdir, Settings::csport, FALSE, _LocalMeta2Info::flags, FREE_AND_CLEAR, free_metaserver2(), _MetaServer2::hostname, _LocalMeta2Info::hostname, _LocalMeta2Info::html_comment, llevError, LOG(), _LocalMeta2Info::mapbase, MAX_BUF, metaserver2, metaserver2_thread(), ms2_info_mutex, _MetaServer2::next, _LocalMeta2Info::notification, _LocalMeta2Info::portnumber, settings, snprintf, strcasecmp(), strdup(), strdup_local, _LocalMeta2Info::text_comment, and TRUE.

Referenced by init().

Here is the call graph for this function:

Here is the caller graph for this function:

◆ metaserver2_thread()

void* metaserver2_thread ( void * junk )

metserver2_thread is the function called from pthread_create.

it is a trivial function - it just sleeps and calls the update function. The sleep time here is really quite arbitrary, but once a minute is probably often enough. A better approach might be to do a time() call and see how long the update takes, and sleep according to that.

Parameters

junk unused.

Returns: This function should never return/exit.

Definition at line 503 of file metaserver.c.

References metaserver2_updates(), and sleep.

Referenced by metaserver2_init().

Here is the call graph for this function:

Here is the caller graph for this function:

◆ metaserver2_updates()

static void metaserver2_updates ( void )

static

This sends an update to the various metaservers.

It generates the form, and then sends it to the server

Definition at line 358 of file metaserver.c.

References _LocalMeta2Info::archbase, _LocalMeta2Info::codebase, _LocalMeta2Info::flags, FULL_VERSION, _MetaServer2::hostname, _LocalMeta2Info::hostname, _LocalMeta2Info::html_comment, _MetaServer2_UpdateInfo::in_bytes, _LocalMeta2Info::mapbase, MAX_BUF, metaserver2_writer(), ms2_info_mutex, _MetaServer2::next, _MetaServer2_UpdateInfo::num_players, _MetaServer2_UpdateInfo::out_bytes, _LocalMeta2Info::portnumber, snprintf, _LocalMeta2Info::text_comment, _MetaServer2_UpdateInfo::uptime, VERSION_CS, and VERSION_SC.

Referenced by metaserver2_thread().

Here is the call graph for this function:

Here is the caller graph for this function:

◆ metaserver2_writer()

static size_t metaserver2_writer	(	void *	ptr,
		size_t	size,
		size_t	nmemb,
		void *	data
	)

static

Handles writing of HTTP request data from the metaserver2.

We treat the data as a string. We should really pay attention to the header data, and do something clever if we get 404 codes or the like.

Parameters

ptr	actual data.
size	size of the data.
nmemb	number of elements.
data	user-provided data, unused.

Returns: number of bytes processed, always the full size.

Definition at line 343 of file metaserver.c.

References llevDebug, and LOG().

Referenced by metaserver2_updates().

Here is the call graph for this function:

Here is the caller graph for this function:

◆ metaserver_update()

void metaserver_update ( void )

Updates our info in the metaserver Note that this is used for both metaserver1 and metaserver2 - for metaserver2, it just copies dynamic data into private data structure, doing locking in the process.

Definition at line 49 of file metaserver.c.

References cst_tot, first_player, FLAG_AFK, FLAG_WIZ, pl::hidden, CS_Stats::ibytes, _MetaServer2_UpdateInfo::in_bytes, socket_struct::is_bot, obj::map, metaserver2_updateinfo, ms2_info_mutex, pl::next, _MetaServer2_UpdateInfo::num_players, pl::ob, CS_Stats::obytes, _MetaServer2_UpdateInfo::out_bytes, QUERY_FLAG, pl::socket, ST_GET_PARTY_PASSWORD, ST_PLAYING, pl::state, CS_Stats::time_start, and _MetaServer2_UpdateInfo::uptime.