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Implementation of an experimental cache manager.

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git-svn-id: file:///svn/phpbb/trunk@3312 89ea8834-ac86-4346-8a33-228a782c2dd0
This commit is contained in:
Ludovic Arnaud
2003-01-11 22:56:49 +00:00
parent d7e485e5f6
commit 85b196b5fe
10 changed files with 399 additions and 104 deletions
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142
phpBB/db/mysql.php
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@@ -36,7 +36,7 @@ class sql_db
//
// Constructor
//
function sql_db($sqlserver, $sqluser, $sqlpassword, $database, $port, $persistency = false)
function sql_db($sqlserver, $sqluser, $sqlpassword, $database, $port = false, $persistency = false)
{
$this->open_queries = array();
$this->num_queries = 0;
@@ -117,74 +117,84 @@ class sql_db
//
// Base query method
//
function sql_query($query = '')
function sql_query($query = '', $expire_time = 0)
{
if ($query != '')
{
$this->query_result = false;
$this->num_queries++;
global $cache;
if (!$expire_time || !$cache->sql_load($query))
{
$this->query_result = false;
$this->num_queries++;
if (!empty($_REQUEST['explain']))
{
global $starttime;
$curtime = explode(' ', microtime());
$curtime = $curtime[0] + $curtime[1] - $starttime;
}
if (!$this->query_result = @mysql_query($query, $this->db_connect_id))
{
$this->sql_error($query);
}
if (!empty($_REQUEST['explain']))
{
$endtime = explode(' ', microtime());
$endtime = $endtime[0] + $endtime[1] - $starttime;
if (!empty($_REQUEST['explain']))
{
global $starttime;
$curtime = explode(' ', microtime());
$curtime = $curtime[0] + $curtime[1] - $starttime;
}
if (!$this->query_result = @mysql_query($query, $this->db_connect_id))
{
$this->sql_error($query);
}
if (!empty($_REQUEST['explain']))
{
$endtime = explode(' ', microtime());
$endtime = $endtime[0] + $endtime[1] - $starttime;
$this->sql_report .= "<pre>Query:\t" . htmlspecialchars(preg_replace('/[\s]*[\n\r\t]+[\n\r\s\t]*/', "\n\t", $query)) . "\n\n";
if ($this->query_result)
{
$this->sql_report .= "Time before: $curtime\nTime after: $endtime\nElapsed time: <b>" . ($endtime - $curtime) . "</b>\n</pre>";
}
else
{
$error = $this->sql_error();
$this->sql_report .= '<b>FAILED</b> - MySQL Error ' . $error['code'] . ': ' . htmlspecialchars($error['message']) . '<br><br><pre>';
}
$this->sql_time += $endtime - $curtime;
if (preg_match('/^SELECT/', $query))
{
$html_table = FALSE;
if ($result = mysql_query("EXPLAIN $query", $this->db_connect_id))
$this->sql_report .= "<pre>Query:\t" . htmlspecialchars(preg_replace('/[\s]*[\n\r\t]+[\n\r\s\t]*/', "\n\t", $query)) . "\n\n";
if ($this->query_result)
{
while ($row = mysql_fetch_assoc($result))
$this->sql_report .= "Time before: $curtime\nTime after: $endtime\nElapsed time: <b>" . ($endtime - $curtime) . "</b>\n</pre>";
}
else
{
$error = $this->sql_error();
$this->sql_report .= '<b>FAILED</b> - MySQL Error ' . $error['code'] . ': ' . htmlspecialchars($error['message']) . '<br><br><pre>';
}
$this->sql_time += $endtime - $curtime;
if (preg_match('/^SELECT/', $query))
{
$html_table = FALSE;
if ($result = mysql_query("EXPLAIN $query", $this->db_connect_id))
{
if (!$html_table && count($row))
while ($row = mysql_fetch_assoc($result))
{
$html_table = TRUE;
$this->sql_report .= "<table width=100% border=1 cellpadding=2 cellspacing=1>\n";
$this->sql_report .= "<tr>\n<td><b>" . implode("</b></td>\n<td><b>", array_keys($row)) . "</b></td>\n</tr>\n";
if (!$html_table && count($row))
{
$html_table = TRUE;
$this->sql_report .= "<table width=100% border=1 cellpadding=2 cellspacing=1>\n";
$this->sql_report .= "<tr>\n<td><b>" . implode("</b></td>\n<td><b>", array_keys($row)) . "</b></td>\n</tr>\n";
}
$this->sql_report .= "<tr>\n<td>" . implode("&nbsp;</td>\n<td>", array_values($row)) . "&nbsp;</td>\n</tr>\n";
}
$this->sql_report .= "<tr>\n<td>" . implode("&nbsp;</td>\n<td>", array_values($row)) . "&nbsp;</td>\n</tr>\n";
}
if ($html_table)
{
$this->sql_report .= '</table><br>';
}
}
if ($html_table)
{
$this->sql_report .= '</table><br>';
}
$this->sql_report .= "<hr>\n";
}
$this->sql_report .= "<hr>\n";
}
$this->open_queries[] = $this->query_result;
$this->open_queries[] = $this->query_result;
}
}
else
{
return false;
}
if ($expire_time && $this->query_result)
{
$cache->sql_save($query, $this->query_result);
@mysql_free_result(array_pop($this->open_queries));
}
return ( $this->query_result) ? $this->query_result : false;
}
function sql_query_limit($query = '', $total, $offset = 0)
function sql_query_limit($query = '', $total, $offset = 0, $expire_time = 0)
{
if ( $query != '' )
{
@@ -196,7 +206,7 @@ class sql_db
$query .= ' LIMIT ' . ( ( !empty($offset) ) ? $offset . ', ' . $total : $total );
}
return $this->sql_query($query);
return $this->sql_query($query, $expire_time);
}
else
{
@@ -288,59 +298,62 @@ class sql_db
$query_id = $this->query_result;
}
global $cache;
if ($cache->sql_exists($query_id))
{
return $cache->sql_fetchrow($query_id);
}
return ( $query_id ) ? @mysql_fetch_assoc($query_id) : false;
}
function sql_fetchrowset($query_id = 0)
{
if(!$query_id)
if (!$query_id)
{
$query_id = $this->query_result;
}
if($query_id)
if ($query_id)
{
unset($this->rowset[$query_id]);
unset($this->row[$query_id]);
while($this->rowset[$query_id] = @mysql_fetch_assoc($query_id))
while ($this->rowset[$query_id] = $this->sql_fetchrow($query_id))
{
$result[] = $this->rowset[$query_id];
}
return $result;
}
else
{
return false;
}
return false;
}
function sql_fetchfield($field, $rownum = -1, $query_id = 0)
{
if(!$query_id)
if (!$query_id)
{
$query_id = $this->query_result;
}
if($query_id)
if ($query_id)
{
if($rownum > -1)
if ($rownum > -1)
{
$result = @mysql_result($query_id, $rownum, $field);
}
else
{
if(empty($this->row[$query_id]) && empty($this->rowset[$query_id]))
if (empty($this->row[$query_id]) && empty($this->rowset[$query_id]))
{
if($this->sql_fetchrow())
if ($this->sql_fetchrow())
{
$result = $this->row[$query_id][$field];
}
}
else
{
if($this->rowset[$query_id])
if ($this->rowset[$query_id])
{
$result = $this->rowset[$query_id][$field];
}
else if($this->row[$query_id])
elseif ($this->row[$query_id])
{
$result = $this->row[$query_id][$field];
}
@@ -348,10 +361,7 @@ class sql_db
}
return $result;
}
else
{
return false;
}
return false;
}
function sql_rowseek($rownum, $query_id = 0)