Thijs/wiki.techinc.nl
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions
wiki.techinc.nl/includes/db/DBConnRef.php
Aaron Schulz db0b9ef264 Make WANObjectCache sets account for slave lag 
* This gets lag information that is useful when
  the calling code is about to run queries that
  will have their results cached.
* This is now used in place of trxTimestamp() for
  WANObjectCache set() and getWithSetCallback().
* The WAN cache will use a low TTL if the lag is
  too high to avoid caching stale data for weeks.
* Bumped MAX_COMMIT_DELAY as nothing enforces it.

Bug: T113204
Change-Id: I2a95b4088cff42d6e980351555f81a4b13519e24
2015-10-05 16:45:13 -07:00

524 lines
14 KiB
PHP
Raw Blame History

<?php
/**
* Helper class to handle automatically marking connections as reusable (via RAII pattern)
* as well handling deferring the actual network connection until the handle is used
*
* @note: proxy methods are defined explicity to avoid interface errors
* @ingroup Database
* @since 1.22
*/
class DBConnRef implements IDatabase {
/** @var LoadBalancer */
private $lb;
/** @var DatabaseBase|null */
private $conn;
/** @var array|null */
private $params;
/**
* @param LoadBalancer $lb
* @param DatabaseBase|array $conn Connection or (server index, group, wiki ID) array
*/
public function __construct( LoadBalancer $lb, $conn ) {
$this->lb = $lb;
if ( $conn instanceof DatabaseBase ) {
$this->conn = $conn;
} else {
$this->params = $conn;
}
}
function __call( $name, array $arguments ) {
if ( $this->conn === null ) {
list( $db, $groups, $wiki ) = $this->params;
$this->conn = $this->lb->getConnection( $db, $groups, $wiki );
}
return call_user_func_array( array( $this->conn, $name ), $arguments );
}
public function getServerInfo() {
return $this->__call( __FUNCTION__, func_get_args() );
}
public function bufferResults( $buffer = null ) {
return $this->__call( __FUNCTION__, func_get_args() );
}
public function trxLevel() {
return $this->__call( __FUNCTION__, func_get_args() );
}
public function trxTimestamp() {
return $this->__call( __FUNCTION__, func_get_args() );
}
public function tablePrefix( $prefix = null ) {
return $this->__call( __FUNCTION__, func_get_args() );
}
public function dbSchema( $schema = null ) {
return $this->__call( __FUNCTION__, func_get_args() );
}
public function getLBInfo( $name = null ) {
return $this->__call( __FUNCTION__, func_get_args() );
}
public function setLBInfo( $name, $value = null ) {
return $this->__call( __FUNCTION__, func_get_args() );
}
public function implicitGroupby() {
return $this->__call( __FUNCTION__, func_get_args() );
}
public function implicitOrderby() {
return $this->__call( __FUNCTION__, func_get_args() );
}
public function lastQuery() {
return $this->__call( __FUNCTION__, func_get_args() );
}
public function doneWrites() {
return $this->__call( __FUNCTION__, func_get_args() );
}
public function lastDoneWrites() {
return $this->__call( __FUNCTION__, func_get_args() );
}
public function writesOrCallbacksPending() {
return $this->__call( __FUNCTION__, func_get_args() );
}
public function pendingWriteQueryDuration() {
return $this->__call( __FUNCTION__, func_get_args() );
}
public function isOpen() {
return $this->__call( __FUNCTION__, func_get_args() );
}
public function setFlag( $flag ) {
return $this->__call( __FUNCTION__, func_get_args() );
}
public function clearFlag( $flag ) {
return $this->__call( __FUNCTION__, func_get_args() );
}
public function getFlag( $flag ) {
return $this->__call( __FUNCTION__, func_get_args() );
}
public function getProperty( $name ) {
return $this->__call( __FUNCTION__, func_get_args() );
}
public function getWikiID() {
return $this->__call( __FUNCTION__, func_get_args() );
}
public function getType() {
return $this->__call( __FUNCTION__, func_get_args() );
}
public function open( $server, $user, $password, $dbName ) {
return $this->__call( __FUNCTION__, func_get_args() );
}
public function fetchObject( $res ) {
return $this->__call( __FUNCTION__, func_get_args() );
}
public function fetchRow( $res ) {
return $this->__call( __FUNCTION__, func_get_args() );
}
public function numRows( $res ) {
return $this->__call( __FUNCTION__, func_get_args() );
}
public function numFields( $res ) {
return $this->__call( __FUNCTION__, func_get_args() );
}
public function fieldName( $res, $n ) {
return $this->__call( __FUNCTION__, func_get_args() );
}
public function insertId() {
return $this->__call( __FUNCTION__, func_get_args() );
}
public function dataSeek( $res, $row ) {
return $this->__call( __FUNCTION__, func_get_args() );
}
public function lastErrno() {
return $this->__call( __FUNCTION__, func_get_args() );
}
public function lastError() {
return $this->__call( __FUNCTION__, func_get_args() );
}
public function fieldInfo( $table, $field ) {
return $this->__call( __FUNCTION__, func_get_args() );
}
public function affectedRows() {
return $this->__call( __FUNCTION__, func_get_args() );
}
public function getSoftwareLink() {
return $this->__call( __FUNCTION__, func_get_args() );
}
public function getServerVersion() {
return $this->__call( __FUNCTION__, func_get_args() );
}
public function close() {
return $this->__call( __FUNCTION__, func_get_args() );
}
public function reportConnectionError( $error = 'Unknown error' ) {
return $this->__call( __FUNCTION__, func_get_args() );
}
public function query( $sql, $fname = __METHOD__, $tempIgnore = false ) {
return $this->__call( __FUNCTION__, func_get_args() );
}
public function reportQueryError( $error, $errno, $sql, $fname, $tempIgnore = false ) {
return $this->__call( __FUNCTION__, func_get_args() );
}
public function freeResult( $res ) {
return $this->__call( __FUNCTION__, func_get_args() );
}
public function selectField(
$table, $var, $cond = '', $fname = __METHOD__, $options = array()
) {
return $this->__call( __FUNCTION__, func_get_args() );
}
public function selectFieldValues(
$table, $var, $cond = '', $fname = __METHOD__, $options = array()
) {
return $this->__call( __FUNCTION__, func_get_args() );
}
public function select(
$table, $vars, $conds = '', $fname = __METHOD__,
$options = array(), $join_conds = array()
) {
return $this->__call( __FUNCTION__, func_get_args() );
}
public function selectSQLText(
$table, $vars, $conds = '', $fname = __METHOD__,
$options = array(), $join_conds = array()
) {
return $this->__call( __FUNCTION__, func_get_args() );
}
public function selectRow(
$table, $vars, $conds, $fname = __METHOD__,
$options = array(), $join_conds = array()
) {
return $this->__call( __FUNCTION__, func_get_args() );
}
public function estimateRowCount(
$table, $vars = '*', $conds = '', $fname = __METHOD__, $options = array()
) {
return $this->__call( __FUNCTION__, func_get_args() );
}
public function selectRowCount(
$table, $vars = '*', $conds = '', $fname = __METHOD__, $options = array()
) {
return $this->__call( __FUNCTION__, func_get_args() );
}
public function fieldExists( $table, $field, $fname = __METHOD__ ) {
return $this->__call( __FUNCTION__, func_get_args() );
}
public function indexExists( $table, $index, $fname = __METHOD__ ) {
return $this->__call( __FUNCTION__, func_get_args() );
}
public function tableExists( $table, $fname = __METHOD__ ) {
return $this->__call( __FUNCTION__, func_get_args() );
}
public function indexUnique( $table, $index ) {
return $this->__call( __FUNCTION__, func_get_args() );
}
public function insert( $table, $a, $fname = __METHOD__, $options = array() ) {
return $this->__call( __FUNCTION__, func_get_args() );
}
public function update( $table, $values, $conds, $fname = __METHOD__, $options = array() ) {
return $this->__call( __FUNCTION__, func_get_args() );
}
public function makeList( $a, $mode = LIST_COMMA ) {
return $this->__call( __FUNCTION__, func_get_args() );
}
public function makeWhereFrom2d( $data, $baseKey, $subKey ) {
return $this->__call( __FUNCTION__, func_get_args() );
}
public function bitNot( $field ) {
return $this->__call( __FUNCTION__, func_get_args() );
}
public function bitAnd( $fieldLeft, $fieldRight ) {
return $this->__call( __FUNCTION__, func_get_args() );
}
public function bitOr( $fieldLeft, $fieldRight ) {
return $this->__call( __FUNCTION__, func_get_args() );
}
public function buildConcat( $stringList ) {
return $this->__call( __FUNCTION__, func_get_args() );
}
public function buildGroupConcatField(
$delim, $table, $field, $conds = '', $join_conds = array()
) {
return $this->__call( __FUNCTION__, func_get_args() );
}
public function selectDB( $db ) {
return $this->__call( __FUNCTION__, func_get_args() );
}
public function getDBname() {
return $this->__call( __FUNCTION__, func_get_args() );
}
public function getServer() {
return $this->__call( __FUNCTION__, func_get_args() );
}
public function addQuotes( $s ) {
return $this->__call( __FUNCTION__, func_get_args() );
}
public function buildLike() {
return $this->__call( __FUNCTION__, func_get_args() );
}
public function anyChar() {
return $this->__call( __FUNCTION__, func_get_args() );
}
public function anyString() {
return $this->__call( __FUNCTION__, func_get_args() );
}
public function nextSequenceValue( $seqName ) {
return $this->__call( __FUNCTION__, func_get_args() );
}
public function replace( $table, $uniqueIndexes, $rows, $fname = __METHOD__ ) {
return $this->__call( __FUNCTION__, func_get_args() );
}
public function upsert(
$table, array $rows, array $uniqueIndexes, array $set, $fname = __METHOD__
) {
return $this->__call( __FUNCTION__, func_get_args() );
}
public function deleteJoin(
$delTable, $joinTable, $delVar, $joinVar, $conds, $fname = __METHOD__
) {
return $this->__call( __FUNCTION__, func_get_args() );
}
public function delete( $table, $conds, $fname = __METHOD__ ) {
return $this->__call( __FUNCTION__, func_get_args() );
}
public function insertSelect(
$destTable, $srcTable, $varMap, $conds,
$fname = __METHOD__, $insertOptions = array(), $selectOptions = array()
) {
return $this->__call( __FUNCTION__, func_get_args() );
}
public function unionSupportsOrderAndLimit() {
return $this->__call( __FUNCTION__, func_get_args() );
}
public function unionQueries( $sqls, $all ) {
return $this->__call( __FUNCTION__, func_get_args() );
}
public function conditional( $cond, $trueVal, $falseVal ) {
return $this->__call( __FUNCTION__, func_get_args() );
}
public function strreplace( $orig, $old, $new ) {
return $this->__call( __FUNCTION__, func_get_args() );
}
public function getServerUptime() {
return $this->__call( __FUNCTION__, func_get_args() );
}
public function wasDeadlock() {
return $this->__call( __FUNCTION__, func_get_args() );
}
public function wasLockTimeout() {
return $this->__call( __FUNCTION__, func_get_args() );
}
public function wasErrorReissuable() {
return $this->__call( __FUNCTION__, func_get_args() );
}
public function wasReadOnlyError() {
return $this->__call( __FUNCTION__, func_get_args() );
}
public function masterPosWait( DBMasterPos $pos, $timeout ) {
return $this->__call( __FUNCTION__, func_get_args() );
}
public function getSlavePos() {
return $this->__call( __FUNCTION__, func_get_args() );
}
public function getMasterPos() {
return $this->__call( __FUNCTION__, func_get_args() );
}
public function onTransactionIdle( $callback ) {
return $this->__call( __FUNCTION__, func_get_args() );
}
public function onTransactionPreCommitOrIdle( $callback ) {
return $this->__call( __FUNCTION__, func_get_args() );
}
public function startAtomic( $fname = __METHOD__ ) {
return $this->__call( __FUNCTION__, func_get_args() );
}
public function endAtomic( $fname = __METHOD__ ) {
return $this->__call( __FUNCTION__, func_get_args() );
}
public function begin( $fname = __METHOD__ ) {
return $this->__call( __FUNCTION__, func_get_args() );
}
public function commit( $fname = __METHOD__, $flush = '' ) {
return $this->__call( __FUNCTION__, func_get_args() );
}
public function rollback( $fname = __METHOD__, $flush = '' ) {
return $this->__call( __FUNCTION__, func_get_args() );
}
public function listTables( $prefix = null, $fname = __METHOD__ ) {
return $this->__call( __FUNCTION__, func_get_args() );
}
public function timestamp( $ts = 0 ) {
return $this->__call( __FUNCTION__, func_get_args() );
}
public function timestampOrNull( $ts = null ) {
return $this->__call( __FUNCTION__, func_get_args() );
}
public function ping() {
return $this->__call( __FUNCTION__, func_get_args() );
}
public function getLag() {
return $this->__call( __FUNCTION__, func_get_args() );
}
public function getSessionLagStatus() {
return $this->__call( __FUNCTION__, func_get_args() );
}
public function maxListLen() {
return $this->__call( __FUNCTION__, func_get_args() );
}
public function encodeBlob( $b ) {
return $this->__call( __FUNCTION__, func_get_args() );
}
public function decodeBlob( $b ) {
return $this->__call( __FUNCTION__, func_get_args() );
}
public function setSessionOptions( array $options ) {
return $this->__call( __FUNCTION__, func_get_args() );
}
public function setSchemaVars( $vars ) {
return $this->__call( __FUNCTION__, func_get_args() );
}
public function lockIsFree( $lockName, $method ) {
return $this->__call( __FUNCTION__, func_get_args() );
}
public function lock( $lockName, $method, $timeout = 5 ) {
return $this->__call( __FUNCTION__, func_get_args() );
}
public function unlock( $lockName, $method ) {
return $this->__call( __FUNCTION__, func_get_args() );
}
public function namedLocksEnqueue() {
return $this->__call( __FUNCTION__, func_get_args() );
}
public function getInfinity() {
return $this->__call( __FUNCTION__, func_get_args() );
}
public function encodeExpiry( $expiry ) {
return $this->__call( __FUNCTION__, func_get_args() );
}
public function decodeExpiry( $expiry, $format = TS_MW ) {
return $this->__call( __FUNCTION__, func_get_args() );
}
public function setBigSelects( $value = true ) {
return $this->__call( __FUNCTION__, func_get_args() );
}
/**
* Clean up the connection when out of scope
*/
function __destruct() {
if ( $this->conn !== null ) {
$this->lb->reuseConnection( $this->conn );
}
}
}
Reference in a new issue View git blame Copy permalink