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refactor apc code and move to aur.inc

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- move apc cache code to aur.inc (centralize)
- refactor the apc usage in stats.inc to utilize new code in aur.inc

Lukas: Small commenting style and spelling changes.

Signed-off-by: Lukas Fleischer <archlinux@cryptocrack.de>
This commit is contained in:
elij 2011-05-28 16:17:09 -07:00 • committed by Lukas Fleischer
parent fa53ca68b0
commit af5d05f4ad
2 changed files with 66 additions and 55 deletions
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60
web/lib/aur.inc
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@ -14,6 +14,12 @@ include_once("config.inc");
include_once("version.inc");
include_once("acctfuncs.inc");
# Check if APC extension is loaded, and set cache prefix if it is.
if (!defined('EXTENSION_LOADED_APC')) {
define('EXTENSION_LOADED_APC', extension_loaded('apc'));
define('APC_PREFIX', 'aur:');
}
# see if the visitor is already logged in
#
function check_sid() {
@ -257,6 +263,46 @@ function db_query($query="", $db_handle="") {
return $result;
}
# Set a value in the cache (currently APC) if cache is available for use. If
# not available, this becomes effectively a no-op (return value is
# false). Accepts an optional TTL (defaults to 600 seconds).
function set_cache_value($key, $value, $ttl=600) {
$status = false;
if (EXTENSION_LOADED_APC) {
$status = apc_store(APC_PREFIX.$key, $value, $ttl);
}
return $status;
}
# Get a value from the cache (currently APC) if cache is available for use. If
# not available, this returns false (optionally sets passed in variable $status
# to false, much like apc_fetch() behaves). This allows for testing the fetch
# result appropriately even in the event that a 'false' value was the value in
# the cache.
function get_cache_value($key, &$status=false) {
if(EXTENSION_LOADED_APC) {
$ret = apc_fetch(APC_PREFIX.$key, $status);
if ($status) {
return $ret;
}
}
return $status;
}
# Run a simple db query, retrieving and/or caching the value if APC is
# available for use. Accepts an optional TTL value (defaults to 600 seconds).
function db_cache_value($dbq, $dbh, $key, $ttl=600) {
$status = false;
$value = get_cache_value($key, $status);
if (!$status) {
$result = db_query($dbq, $dbh);
$row = mysql_fetch_row($result);
$value = $row[0];
set_cache_value($key, $value, $ttl);
}
return $value;
}
# set up the visitor's language
#
function set_lang() {
@ -491,12 +537,12 @@ function get_salt($user_id)
{
$dbh = db_connect();
$salt_q = "SELECT Salt FROM Users WHERE ID = " . $user_id;
$result = db_query($salt_q, $dbh);
if ($result) {
$salt_row = mysql_fetch_row($result);
return $salt_row[0];
}
return;
$result = db_query($salt_q, $dbh);
if ($result) {
$salt_row = mysql_fetch_row($result);
return $salt_row[0];
}
return;
}
function save_salt($user_id, $passwd)
@ -535,7 +581,7 @@ function parse_comment($comment)
if ($i % 2) {
# convert links
$html .= '<a href="' . htmlspecialchars($matches[$i]) .
'">' . htmlspecialchars($matches[$i]) . '</a>';
'">' . htmlspecialchars($matches[$i]) . '</a>';
}
else {
# convert everything else