Guilherme Ottoni
81 linhas
2.4 KiB
C++
81 linhas
2.4 KiB
C++
/*
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+----------------------------------------------------------------------+
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| HipHop for PHP |
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+----------------------------------------------------------------------+
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| Copyright (c) 2010-2013 Facebook, Inc. (http://www.facebook.com) |
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+----------------------------------------------------------------------+
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| This source file is subject to version 3.01 of the PHP license, |
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| that is bundled with this package in the file LICENSE, and is |
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| available through the world-wide-web at the following url: |
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| http://www.php.net/license/3_01.txt |
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| If you did not receive a copy of the PHP license and are unable to |
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| obtain it through the world-wide-web, please send a note to |
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| license@php.net so we can mail you a copy immediately. |
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+----------------------------------------------------------------------+
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*/
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#ifndef incl_HPHP_VM_EVENT_HOOK_H_
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#define incl_HPHP_VM_EVENT_HOOK_H_
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#include "hphp/runtime/base/execution_context.h"
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#include "hphp/runtime/vm/bytecode.h"
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#include "hphp/runtime/vm/jit/target-cache.h"
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namespace HPHP {
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class EventHook {
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public:
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enum {
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NormalFunc,
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PseudoMain,
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Eval,
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};
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static void Enable();
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static void Disable();
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static void EnableIntercept();
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static void DisableIntercept();
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static ssize_t CheckSurprise();
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/*
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* Can throw from user-defined signal handlers, or OOM or timeout
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* exceptions.
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*/
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static bool onFunctionEnter(const ActRec* ar, int funcType);
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static inline bool FunctionEnter(const ActRec* ar, int funcType) {
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if (UNLIKELY(Transl::TargetCache::loadConditionFlags())) {
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return onFunctionEnter(ar, funcType);
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}
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return true;
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}
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/*
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* FunctionExit may throw.
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*
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* This means we have to be extra careful when tearing down frames
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* (which might be because an exception is propagating). The
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* unwinder itself will call the function exit hooks and swallow
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* exceptions.
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*/
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static void onFunctionExit(const ActRec* ar);
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static inline void FunctionExit(const ActRec* ar) {
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if (UNLIKELY(Transl::TargetCache::loadConditionFlags())) {
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onFunctionExit(ar);
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}
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}
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private:
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enum {
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ProfileEnter,
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ProfileExit,
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};
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static void RunUserProfiler(const ActRec* ar, int mode);
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static bool RunInterceptHandler(ActRec* ar);
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};
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#undef DECLARE_HOOK
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} // namespace HPHP
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#endif
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