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<?php |
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namespace tomzx\Profiler; |
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use tomzx\Profiler\Runtime\CallFrame; |
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class StackBasedProfiler |
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{ |
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private $lastTick; |
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private $profile; |
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private $stack = []; |
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public function start() |
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{ |
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$this->lastTick = microtime(true); |
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$this->profile = new Profile(); |
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$this->profile->startTime = $this->getMicroseconds($this->lastTick); |
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$rootProfileNode = new ProfileNode(); |
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$rootProfileNode->callFrame = new CallFrame('(root)', 0, '', -1, -1); |
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$this->profile->nodes[] = $rootProfileNode; |
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$this->stack[] = $rootProfileNode; |
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} |
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public function stop(): Profile |
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{ |
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$this->profile->endTime = $this->getMicroseconds(microtime(true)); |
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return $this->profile; |
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} |
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public function push($name) |
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{ |
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$tick = microtime(true); |
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$profileNode = new ProfileNode(); |
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$callFrame = new CallFrame($name, 0, '', -1, -1); |
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$profileNode->callFrame = $callFrame; |
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++$profileNode->hitCount; |
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/** @var \tomzx\Profiler\ProfileNode $parent */ |
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$parent = end($this->stack); |
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$this->profile->nodes[] = $profileNode; |
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$this->profile->samples[] = $profileNode->id; |
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$this->profile->timeDeltas[] = $this->getMicroseconds($tick - $this->lastTick); |
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$this->lastTick = $tick; |
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$parent->children[] = $profileNode->id; |
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$this->stack[$name] = $profileNode; |
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} |
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public function pop() |
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{ |
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array_pop($this->stack); |
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} |
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private function getMicroseconds($time): int |
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{ |
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return (int)(($time) * 10 ** 6); |
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} |
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} |
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tomzx /
profiler
Loading history...
This check looks for assignments to scalar types that may be of the wrong type.
To ensure the code behaves as expected, it may be a good idea to add an explicit type cast.