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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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77 // Global actions. | 77 // Global actions. |
78 | 78 |
79 // If Initialize is called with des == NULL, the initial state is | 79 // If Initialize is called with des == NULL, the initial state is |
80 // created from scratch. If a non-null Deserializer is given, the | 80 // created from scratch. If a non-null Deserializer is given, the |
81 // initial state is created by reading the deserialized data into an | 81 // initial state is created by reading the deserialized data into an |
82 // empty heap. | 82 // empty heap. |
83 static bool Initialize(Deserializer* des); | 83 static bool Initialize(Deserializer* des); |
84 static void TearDown(); | 84 static void TearDown(); |
85 static bool IsRunning() { return is_running_; } | 85 static bool IsRunning() { return is_running_; } |
86 static bool UseCrankshaft() { return use_crankshaft_; } | 86 static bool UseCrankshaft() { return use_crankshaft_; } |
87 static void DisableCrankshaft() { use_crankshaft_ = false; } | |
88 // To be dead you have to have lived | 87 // To be dead you have to have lived |
89 // TODO(isolates): move IsDead to Isolate. | 88 // TODO(isolates): move IsDead to Isolate. |
90 static bool IsDead() { return has_fatal_error_ || has_been_disposed_; } | 89 static bool IsDead() { return has_fatal_error_ || has_been_disposed_; } |
91 static void SetFatalError(); | 90 static void SetFatalError(); |
92 | 91 |
93 // Report process out of memory. Implementation found in api.cc. | 92 // Report process out of memory. Implementation found in api.cc. |
94 static void FatalProcessOutOfMemory(const char* location, | 93 static void FatalProcessOutOfMemory(const char* location, |
95 bool take_snapshot = false); | 94 bool take_snapshot = false); |
96 | 95 |
97 // Random number generation support. Not cryptographically safe. | 96 // Random number generation support. Not cryptographically safe. |
98 static uint32_t Random(Isolate* isolate); | 97 static uint32_t Random(Isolate* isolate); |
99 // We use random numbers internally in memory allocation and in the | 98 // We use random numbers internally in memory allocation and in the |
100 // compilers for security. In order to prevent information leaks we | 99 // compilers for security. In order to prevent information leaks we |
101 // use a separate random state for internal random number | 100 // use a separate random state for internal random number |
102 // generation. | 101 // generation. |
103 static uint32_t RandomPrivate(Isolate* isolate); | 102 static uint32_t RandomPrivate(Isolate* isolate); |
104 static Object* FillHeapNumberWithRandom(Object* heap_number, | 103 static Object* FillHeapNumberWithRandom(Object* heap_number, |
105 Isolate* isolate); | 104 Isolate* isolate); |
106 | 105 |
107 // Idle notification directly from the API. | 106 // Idle notification directly from the API. |
108 static bool IdleNotification(); | 107 static bool IdleNotification(); |
109 | 108 |
110 private: | 109 private: |
| 110 static void InitializeOncePerProcess(); |
| 111 |
111 // True if engine is currently running | 112 // True if engine is currently running |
112 static bool is_running_; | 113 static bool is_running_; |
113 // True if V8 has ever been run | 114 // True if V8 has ever been run |
114 static bool has_been_setup_; | 115 static bool has_been_setup_; |
115 // True if error has been signaled for current engine | 116 // True if error has been signaled for current engine |
116 // (reset to false if engine is restarted) | 117 // (reset to false if engine is restarted) |
117 static bool has_fatal_error_; | 118 static bool has_fatal_error_; |
118 // True if engine has been shut down | 119 // True if engine has been shut down |
119 // (reset if engine is restarted) | 120 // (reset if engine is restarted) |
120 static bool has_been_disposed_; | 121 static bool has_been_disposed_; |
121 // True if we are using the crankshaft optimizing compiler. | 122 // True if we are using the crankshaft optimizing compiler. |
122 static bool use_crankshaft_; | 123 static bool use_crankshaft_; |
123 }; | 124 }; |
124 | 125 |
125 } } // namespace v8::internal | 126 } } // namespace v8::internal |
126 | 127 |
127 namespace i = v8::internal; | 128 namespace i = v8::internal; |
128 | 129 |
129 #endif // V8_V8_H_ | 130 #endif // V8_V8_H_ |
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