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| 1 // Copyright 2006-2008 the V8 project authors. All rights reserved. | 1 // Copyright 2006-2008 the V8 project authors. All rights reserved. |
| 2 // Redistribution and use in source and binary forms, with or without | 2 // Redistribution and use in source and binary forms, with or without |
| 3 // modification, are permitted provided that the following conditions are | 3 // modification, are permitted provided that the following conditions are |
| 4 // met: | 4 // met: |
| 5 // | 5 // |
| 6 // * Redistributions of source code must retain the above copyright | 6 // * Redistributions of source code must retain the above copyright |
| 7 // notice, this list of conditions and the following disclaimer. | 7 // notice, this list of conditions and the following disclaimer. |
| 8 // * Redistributions in binary form must reproduce the above | 8 // * Redistributions in binary form must reproduce the above |
| 9 // copyright notice, this list of conditions and the following | 9 // copyright notice, this list of conditions and the following |
| 10 // disclaimer in the documentation and/or other materials provided | 10 // disclaimer in the documentation and/or other materials provided |
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| 56 #include "v8globals.h" | 56 #include "v8globals.h" |
| 57 #include "v8checks.h" | 57 #include "v8checks.h" |
| 58 #include "allocation.h" | 58 #include "allocation.h" |
| 59 #include "v8utils.h" | 59 #include "v8utils.h" |
| 60 #include "flags.h" | 60 #include "flags.h" |
| 61 | 61 |
| 62 // Objects & heap | 62 // Objects & heap |
| 63 #include "objects-inl.h" | 63 #include "objects-inl.h" |
| 64 #include "spaces-inl.h" | 64 #include "spaces-inl.h" |
| 65 #include "heap-inl.h" | 65 #include "heap-inl.h" |
| 66 #include "incremental-marking-inl.h" |
| 67 #include "mark-compact-inl.h" |
| 66 #include "log-inl.h" | 68 #include "log-inl.h" |
| 67 #include "cpu-profiler-inl.h" | 69 #include "cpu-profiler-inl.h" |
| 68 #include "handles-inl.h" | 70 #include "handles-inl.h" |
| 69 | 71 |
| 70 namespace v8 { | 72 namespace v8 { |
| 71 namespace internal { | 73 namespace internal { |
| 72 | 74 |
| 73 class Deserializer; | 75 class Deserializer; |
| 74 | 76 |
| 75 class V8 : public AllStatic { | 77 class V8 : public AllStatic { |
| 76 public: | 78 public: |
| 77 // Global actions. | 79 // Global actions. |
| 78 | 80 |
| 79 // If Initialize is called with des == NULL, the initial state is | 81 // If Initialize is called with des == NULL, the initial state is |
| 80 // created from scratch. If a non-null Deserializer is given, the | 82 // created from scratch. If a non-null Deserializer is given, the |
| 81 // initial state is created by reading the deserialized data into an | 83 // initial state is created by reading the deserialized data into an |
| 82 // empty heap. | 84 // empty heap. |
| 83 static bool Initialize(Deserializer* des); | 85 static bool Initialize(Deserializer* des); |
| 84 static void TearDown(); | 86 static void TearDown(); |
| 85 static bool IsRunning() { return is_running_; } | 87 static bool IsRunning() { return is_running_; } |
| 86 static bool UseCrankshaft() { return use_crankshaft_; } | 88 static bool UseCrankshaft() { return use_crankshaft_; } |
| 87 static void DisableCrankshaft() { use_crankshaft_ = false; } | 89 static void DisableCrankshaft() { use_crankshaft_ = false; } |
| 88 // To be dead you have to have lived | 90 // To be dead you have to have lived |
| 91 // TODO(isolates): move IsDead to Isolate. |
| 89 static bool IsDead() { return has_fatal_error_ || has_been_disposed_; } | 92 static bool IsDead() { return has_fatal_error_ || has_been_disposed_; } |
| 90 static void SetFatalError(); | 93 static void SetFatalError(); |
| 91 | 94 |
| 92 // Report process out of memory. Implementation found in api.cc. | 95 // Report process out of memory. Implementation found in api.cc. |
| 93 static void FatalProcessOutOfMemory(const char* location, | 96 static void FatalProcessOutOfMemory(const char* location, |
| 94 bool take_snapshot = false); | 97 bool take_snapshot = false); |
| 95 | 98 |
| 96 // Random number generation support. Not cryptographically safe. | 99 // Random number generation support. Not cryptographically safe. |
| 97 static uint32_t Random(); | 100 static uint32_t Random(Isolate* isolate); |
| 98 // We use random numbers internally in memory allocation and in the | 101 // We use random numbers internally in memory allocation and in the |
| 99 // compilers for security. In order to prevent information leaks we | 102 // compilers for security. In order to prevent information leaks we |
| 100 // use a separate random state for internal random number | 103 // use a separate random state for internal random number |
| 101 // generation. | 104 // generation. |
| 102 static uint32_t RandomPrivate(); | 105 static uint32_t RandomPrivate(Isolate* isolate); |
| 103 static Object* FillHeapNumberWithRandom(Object* heap_number); | 106 static Object* FillHeapNumberWithRandom(Object* heap_number); |
| 104 | 107 |
| 105 // Idle notification directly from the API. | 108 // Idle notification directly from the API. |
| 106 static bool IdleNotification(); | 109 static bool IdleNotification(); |
| 107 | 110 |
| 108 private: | 111 private: |
| 109 // True if engine is currently running | 112 // True if engine is currently running |
| 110 static bool is_running_; | 113 static bool is_running_; |
| 111 // True if V8 has ever been run | 114 // True if V8 has ever been run |
| 112 static bool has_been_setup_; | 115 static bool has_been_setup_; |
| 113 // True if error has been signaled for current engine | 116 // True if error has been signaled for current engine |
| 114 // (reset to false if engine is restarted) | 117 // (reset to false if engine is restarted) |
| 115 static bool has_fatal_error_; | 118 static bool has_fatal_error_; |
| 116 // True if engine has been shut down | 119 // True if engine has been shut down |
| 117 // (reset if engine is restarted) | 120 // (reset if engine is restarted) |
| 118 static bool has_been_disposed_; | 121 static bool has_been_disposed_; |
| 119 // True if we are using the crankshaft optimizing compiler. | 122 // True if we are using the crankshaft optimizing compiler. |
| 120 static bool use_crankshaft_; | 123 static bool use_crankshaft_; |
| 121 }; | 124 }; |
| 122 | 125 |
| 123 } } // namespace v8::internal | 126 } } // namespace v8::internal |
| 124 | 127 |
| 125 namespace i = v8::internal; | 128 namespace i = v8::internal; |
| 126 | 129 |
| 127 #endif // V8_V8_H_ | 130 #endif // V8_V8_H_ |
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