1// Copyright 2006-2008 the V8 project authors. All rights reserved. 2// Redistribution and use in source and binary forms, with or without 3// modification, are permitted provided that the following conditions are 4// met: 5// 6// * Redistributions of source code must retain the above copyright 7// notice, this list of conditions and the following disclaimer. 8// * Redistributions in binary form must reproduce the above 9// copyright notice, this list of conditions and the following 10// disclaimer in the documentation and/or other materials provided 11// with the distribution. 12// * Neither the name of Google Inc. nor the names of its 13// contributors may be used to endorse or promote products derived 14// from this software without specific prior written permission. 15// 16// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 17// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 18// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 19// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 20// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 21// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 22// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 26// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 28// 29// Top include for all V8 .cc files. 30// 31 32#ifndef V8_V8_H_ 33#define V8_V8_H_ 34 35#if defined(GOOGLE3) 36// Google3 special flag handling. 37#if defined(DEBUG) && defined(NDEBUG) 38// If both are defined in Google3, then we are building an optimized v8 with 39// assertions enabled. 40#undef NDEBUG 41#elif !defined(DEBUG) && !defined(NDEBUG) 42// If neither is defined in Google3, then we are building a debug v8. Mark it 43// as such. 44#define DEBUG 45#endif 46#endif // defined(GOOGLE3) 47 48// V8 only uses DEBUG, but included external files 49// may use NDEBUG - make sure they are consistent. 50#if defined(DEBUG) && defined(NDEBUG) 51#error both DEBUG and NDEBUG are set 52#endif 53 54// Basic includes 55#include "../include/v8.h" 56#include "v8globals.h" 57#include "v8checks.h" 58#include "allocation.h" 59#include "v8utils.h" 60#include "flags.h" 61 62// Objects & heap 63#include "objects-inl.h" 64#include "spaces-inl.h" 65#include "heap-inl.h" 66#include "log-inl.h" 67#include "cpu-profiler-inl.h" 68#include "handles-inl.h" 69 70namespace v8 { 71namespace internal { 72 73class Deserializer; 74 75class V8 : public AllStatic { 76 public: 77 // Global actions. 78 79 // If Initialize is called with des == NULL, the initial state is 80 // created from scratch. If a non-null Deserializer is given, the 81 // initial state is created by reading the deserialized data into an 82 // empty heap. 83 static bool Initialize(Deserializer* des); 84 static void TearDown(); 85 static bool IsRunning() { return is_running_; } 86 static bool UseCrankshaft() { return use_crankshaft_; } 87 // To be dead you have to have lived 88 // TODO(isolates): move IsDead to Isolate. 89 static bool IsDead() { return has_fatal_error_ || has_been_disposed_; } 90 static void SetFatalError(); 91 92 // Report process out of memory. Implementation found in api.cc. 93 static void FatalProcessOutOfMemory(const char* location, 94 bool take_snapshot = false); 95 96 // Random number generation support. Not cryptographically safe. 97 static uint32_t Random(Isolate* isolate); 98 // We use random numbers internally in memory allocation and in the 99 // compilers for security. In order to prevent information leaks we 100 // use a separate random state for internal random number 101 // generation. 102 static uint32_t RandomPrivate(Isolate* isolate); 103 static Object* FillHeapNumberWithRandom(Object* heap_number, 104 Isolate* isolate); 105 106 // Idle notification directly from the API. 107 static bool IdleNotification(); 108 109 private: 110 static void InitializeOncePerProcess(); 111 112 // True if engine is currently running 113 static bool is_running_; 114 // True if V8 has ever been run 115 static bool has_been_setup_; 116 // True if error has been signaled for current engine 117 // (reset to false if engine is restarted) 118 static bool has_fatal_error_; 119 // True if engine has been shut down 120 // (reset if engine is restarted) 121 static bool has_been_disposed_; 122 // True if we are using the crankshaft optimizing compiler. 123 static bool use_crankshaft_; 124}; 125 126} } // namespace v8::internal 127 128namespace i = v8::internal; 129 130#endif // V8_V8_H_ 131