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optimizations

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This commit is contained in:
Marc Delisle
2009-07-16 10:59:12 +00:00
parent b61a1cb71f
commit 1f2f360482
1 changed files with 42 additions and 75 deletions
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109
libraries/blobstreaming.lib.php
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@@ -1,8 +1,7 @@
<?php
/* vim: set expandtab sw=4 ts=4 sts=4: */
/**
* @author Raj Kissu Rajandran
* @version 1.0
* @author Raj Kissu Rajandran and the team
* @package BLOBStreaming
*/
@@ -13,7 +12,6 @@
* @uses PMA_Config::get()
* @uses PMA_Config::settings()
* @uses PMA_Config::set()
* @uses PMA_PluginsExist()
* @uses PMA_BS_SetVariables()
* @uses PMA_BS_GetVariables()
* @uses PMA_BS_SetFieldReferences()
@@ -28,49 +26,59 @@ function checkBLOBStreamingPlugins()
if (empty($PMA_Config))
return FALSE;
// retrieve current server configuration
$serverCfg = $PMA_Config->get('Servers');
if (isset($serverCfg[$GLOBALS['server']]))
$serverCfg = $serverCfg[$GLOBALS['server']];
else
$serverCfg = null;
/** Retrieve current server configuration;
* at this point, $PMA_Config->get('Servers') contains the server parameters
* as explicitely defined in config.inc.php, so it cannot be used; it's
* better to use $GLOBALS['cfg']['Server'] which contains the explicit
* parameters merged with the default ones
*
*/
$serverCfg = $GLOBALS['cfg']['Server'];
// return if unable to retrieve current server configuration
if (!isset($serverCfg))
if (! $serverCfg) {
return FALSE;
}
// if PHP extension in use is 'mysql', specify element 'PersistentConnections'
if (isset($serverCfg['extension']) && "mysql" == $serverCfg['extension'])
if ($serverCfg['extension'] == "mysql") {
$serverCfg['PersistentConnections'] = $PMA_Config->settings['PersistentConnections'];
}
// if connection type is TCP, unload socket variable
if (isset($serverCfg['connect_type']) && "tcp" == strtolower($serverCfg['connect_type']))
if (strtolower($serverCfg['connect_type']) == "tcp") {
$serverCfg['socket'] = "";
}
// define BS Plugin variables
$allPluginsExist = TRUE;
$allPluginsExist = false;
if (PMA_MYSQL_INT_VERSION >= 50109) {
$PMA_Config->set('PBXT_NAME', 'pbxt');
$PMA_Config->set('PBMS_NAME', 'pbms');
$plugins[$PMA_Config->get('PBXT_NAME')]['Library'] = 'libpbxt.so';
$plugins[$PMA_Config->get('PBXT_NAME')]['Exists'] = FALSE;
$required_plugins[$PMA_Config->get('PBXT_NAME')]['Library'] = 'libpbxt.so';
$required_plugins[$PMA_Config->get('PBMS_NAME')]['Library'] = 'libpbms.so';
$number_of_required_plugins_found = 0;
$plugins[$PMA_Config->get('PBMS_NAME')]['Library'] = 'libpbms.so';
$plugins[$PMA_Config->get('PBMS_NAME')]['Exists'] = FALSE;
// Retrieve MySQL plugins
$existing_plugins = PMA_DBI_fetch_result('SHOW PLUGINS');
// retrieve state of BS plugins
PMA_PluginsExist($plugins);
foreach ($plugins as $plugin_key=>$plugin)
if (!$plugin['Exists'])
{
$allPluginsExist = FALSE;
foreach ($existing_plugins as $one_existing_plugin) {
// check if required plugins exist
foreach ($required_plugins as $one_required_plugin) {
if ( strtolower($one_existing_plugin['Library']) == strtolower($one_required_plugin['Library'])
&& $one_existing_plugin['Status'] == "ACTIVE") {
$number_of_required_plugins_found++;
}
}
if (2 == $number_of_required_plugins_found) {
$allPluginsExist = true;
break;
} // end if (!$plugin['Exists'])
}
}
unset($required_plugins, $existing_plugins, $one_required_plugin, $one_existing_plugin, $number_of_required_plugins_found);
}
// set variable indicating BS plugin existance
// set variable indicating BS plugin existence
$PMA_Config->set('BLOBSTREAMING_PLUGINS_EXIST', $allPluginsExist);
// do the plugins exist?
@@ -90,7 +98,7 @@ function checkBLOBStreamingPlugins()
// retrieve updated BS variables (configurable and unconfigurable)
$bs_variables = PMA_BS_GetVariables();
// if no BS variables exist, set plugin existance to false and return
// if no BS variables exist, set plugin existence to false and return
if (count($bs_variables) <= 0)
{
$PMA_Config->set('BLOBSTREAMING_PLUGINS_EXIST', FALSE);
@@ -218,8 +226,6 @@ EOD;
function checkBLOBStreamableDatabases()
{
// load PMA configuration
// (remember that $PMA_Config points to the object in $_SESSION,
// therefore changes done with ->set are really done in the session)
$PMA_Config = $_SESSION['PMA_Config'];
// return if unable to load PMA configuration
@@ -257,46 +263,7 @@ function checkBLOBStreamableDatabases()
$PMA_Config->set('BLOBSTREAMABLE_DATABASES', $bs_databases);
}
/**
* checks whether a set of plugins exist
*
* @access public
* @param array - a list of plugin names and accompanying library filenames to check for
* @uses PMA_DBI_query()
* @uses PMA_DBI_fetch_assoc()
*/
function PMA_PluginsExist(&$plugins)
{
if (PMA_MYSQL_INT_VERSION < 50109) {
return;
}
// run query to retrieve MySQL plugins
$query = "SHOW PLUGINS";
$result = PMA_DBI_query($query);
// while there are records to parse
while ($data = @PMA_DBI_fetch_assoc($result))
{
// reset plugin state
$state = TRUE;
// check if required plugins exist
foreach ($plugins as $plugin_key=>$plugin)
if (!$plugin['Exists'])
if (
strtolower($data['Library']) == strtolower($plugin['Library']) &&
$data['Status'] == "ACTIVE"
)
$plugins[$plugin_key]['Exists'] = TRUE;
else
if ($state)
$state = FALSE;
// break if all necessary plugins are found before all records are parsed
if ($state)
break;
} // end while ($data = @PMA_DBI_fetch_assoc($result))
}
/**
* checks whether a given set of tables exist in a given database