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MemoryManager: Analyze contents of function/method static variables

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it's possible for stuff to hide inside these things that would cause leaks.
This commit is contained in:
Dylan K. Taylor 2020-09-26 15:18:34 +01:00
parent b8e1bdbed4
commit e192c75019
1 changed files with 33 additions and 1 deletions
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34
src/MemoryManager.php
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@ -43,6 +43,7 @@ use function gc_enable;
use function gc_mem_caches;
use function get_class;
use function get_declared_classes;
use function get_defined_functions;
use function ini_get;
use function ini_set;
use function is_array;
@ -328,6 +329,9 @@ class MemoryManager{
$staticProperties = [];
$staticCount = 0;
$functionStaticVars = [];
$functionStaticVarsCount = 0;
foreach(get_declared_classes() as $className){
$reflection = new \ReflectionClass($className);
$staticProperties[$className] = [];
@ -347,6 +351,20 @@ class MemoryManager{
if(count($staticProperties[$className]) === 0){
unset($staticProperties[$className]);
}
foreach($reflection->getMethods() as $method){
if($method->getDeclaringClass()->getName() !== $reflection->getName()){
continue;
}
$methodStatics = [];
foreach($method->getStaticVariables() as $name => $variable){
$methodStatics[$name] = self::continueDump($variable, $objects, $refCounts, 0, $maxNesting, $maxStringSize);
}
if(count($methodStatics) > 0){
$functionStaticVars[$className . "::" . $method->getName()] = $methodStatics;
$functionStaticVarsCount += count($functionStaticVars);
}
}
}
file_put_contents($outputFolder . "/staticProperties.js", json_encode($staticProperties, JSON_UNESCAPED_SLASHES | JSON_PRETTY_PRINT));
@ -381,6 +399,21 @@ class MemoryManager{
$logger->info("Wrote $globalCount global variables");
}
foreach(get_defined_functions()["user"] as $function){
$reflect = new \ReflectionFunction($function);
$vars = [];
foreach($reflect->getStaticVariables() as $varName => $variable){
$vars[$varName] = self::continueDump($variable, $objects, $refCounts, 0, $maxNesting, $maxStringSize);
}
if(count($vars) > 0){
$functionStaticVars[$function] = $vars;
$functionStaticVarsCount += count($vars);
}
}
file_put_contents($outputFolder . '/functionStaticVars.js', json_encode($functionStaticVars, JSON_UNESCAPED_SLASHES | JSON_PRETTY_PRINT));
$logger->info("Wrote $functionStaticVarsCount function static variables");
$data = self::continueDump($startingObject, $objects, $refCounts, 0, $maxNesting, $maxStringSize);
do{
@ -410,7 +443,6 @@ class MemoryManager{
$info["this"] = self::continueDump($closureThis, $objects, $refCounts, 0, $maxNesting, $maxStringSize);
}
//TODO: scan non-closures for statics as well
foreach($reflect->getStaticVariables() as $name => $variable){
$info["referencedVars"][$name] = self::continueDump($variable, $objects, $refCounts, 0, $maxNesting, $maxStringSize);
}