Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 1 | // Copyright 2011 the V8 project authors. All rights reserved. |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 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) |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 38 | // V8 only uses DEBUG and whenever it is set we are building a debug |
| 39 | // version of V8. We do not use NDEBUG and simply undef it here for |
| 40 | // consistency. |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 41 | #undef NDEBUG |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 42 | #endif |
| 43 | #endif // defined(GOOGLE3) |
| 44 | |
| 45 | // V8 only uses DEBUG, but included external files |
| 46 | // may use NDEBUG - make sure they are consistent. |
| 47 | #if defined(DEBUG) && defined(NDEBUG) |
| 48 | #error both DEBUG and NDEBUG are set |
| 49 | #endif |
| 50 | |
| 51 | // Basic includes |
| 52 | #include "../include/v8.h" |
Shimeng (Simon) Wang | 8a31eba | 2010-12-06 19:01:33 -0800 | [diff] [blame] | 53 | #include "v8globals.h" |
| 54 | #include "v8checks.h" |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 55 | #include "allocation.h" |
Teng-Hui Zhu | 3e5fa29 | 2010-11-09 16:16:48 -0800 | [diff] [blame] | 56 | #include "v8utils.h" |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 57 | #include "flags.h" |
| 58 | |
| 59 | // Objects & heap |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 60 | #include "objects-inl.h" |
| 61 | #include "spaces-inl.h" |
| 62 | #include "heap-inl.h" |
Ben Murdoch | 592a9fc | 2012-03-05 11:04:45 +0000 | [diff] [blame^] | 63 | #include "incremental-marking-inl.h" |
| 64 | #include "mark-compact-inl.h" |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 65 | #include "log-inl.h" |
Steve Block | 6ded16b | 2010-05-10 14:33:55 +0100 | [diff] [blame] | 66 | #include "cpu-profiler-inl.h" |
| 67 | #include "handles-inl.h" |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 68 | |
| 69 | namespace v8 { |
| 70 | namespace internal { |
| 71 | |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 72 | class Deserializer; |
| 73 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 74 | class V8 : public AllStatic { |
| 75 | public: |
| 76 | // Global actions. |
| 77 | |
| 78 | // If Initialize is called with des == NULL, the initial state is |
| 79 | // created from scratch. If a non-null Deserializer is given, the |
| 80 | // initial state is created by reading the deserialized data into an |
| 81 | // empty heap. |
| 82 | static bool Initialize(Deserializer* des); |
| 83 | static void TearDown(); |
| 84 | static bool IsRunning() { return is_running_; } |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 85 | static bool UseCrankshaft() { return use_crankshaft_; } |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 86 | // To be dead you have to have lived |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 87 | // TODO(isolates): move IsDead to Isolate. |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 88 | static bool IsDead() { return has_fatal_error_ || has_been_disposed_; } |
| 89 | static void SetFatalError(); |
| 90 | |
| 91 | // Report process out of memory. Implementation found in api.cc. |
Ben Murdoch | bb769b2 | 2010-08-11 14:56:33 +0100 | [diff] [blame] | 92 | static void FatalProcessOutOfMemory(const char* location, |
| 93 | bool take_snapshot = false); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 94 | |
Ben Murdoch | 3fb3ca8 | 2011-12-02 17:19:32 +0000 | [diff] [blame] | 95 | // Allows an entropy source to be provided for use in random number |
| 96 | // generation. |
| 97 | static void SetEntropySource(EntropySource source); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 98 | // Random number generation support. Not cryptographically safe. |
Ben Murdoch | 592a9fc | 2012-03-05 11:04:45 +0000 | [diff] [blame^] | 99 | static uint32_t Random(Context* context); |
Shimeng (Simon) Wang | 8a31eba | 2010-12-06 19:01:33 -0800 | [diff] [blame] | 100 | // We use random numbers internally in memory allocation and in the |
| 101 | // compilers for security. In order to prevent information leaks we |
| 102 | // use a separate random state for internal random number |
| 103 | // generation. |
Steve Block | 44f0eee | 2011-05-26 01:26:41 +0100 | [diff] [blame] | 104 | static uint32_t RandomPrivate(Isolate* isolate); |
Ben Murdoch | 8b112d2 | 2011-06-08 16:22:53 +0100 | [diff] [blame] | 105 | static Object* FillHeapNumberWithRandom(Object* heap_number, |
Ben Murdoch | 592a9fc | 2012-03-05 11:04:45 +0000 | [diff] [blame^] | 106 | Context* context); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 107 | |
| 108 | // Idle notification directly from the API. |
Steve Block | 3ce2e20 | 2009-11-05 08:53:23 +0000 | [diff] [blame] | 109 | static bool IdleNotification(); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 110 | |
| 111 | private: |
Ben Murdoch | 8b112d2 | 2011-06-08 16:22:53 +0100 | [diff] [blame] | 112 | static void InitializeOncePerProcess(); |
| 113 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 114 | // True if engine is currently running |
| 115 | static bool is_running_; |
| 116 | // True if V8 has ever been run |
| 117 | static bool has_been_setup_; |
| 118 | // True if error has been signaled for current engine |
| 119 | // (reset to false if engine is restarted) |
| 120 | static bool has_fatal_error_; |
| 121 | // True if engine has been shut down |
| 122 | // (reset if engine is restarted) |
| 123 | static bool has_been_disposed_; |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame] | 124 | // True if we are using the crankshaft optimizing compiler. |
| 125 | static bool use_crankshaft_; |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 126 | }; |
| 127 | |
Ben Murdoch | 592a9fc | 2012-03-05 11:04:45 +0000 | [diff] [blame^] | 128 | |
| 129 | // JavaScript defines two kinds of 'nil'. |
| 130 | enum NilValue { kNullValue, kUndefinedValue }; |
| 131 | |
| 132 | |
| 133 | // JavaScript defines two kinds of equality. |
| 134 | enum EqualityKind { kStrictEquality, kNonStrictEquality }; |
| 135 | |
| 136 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 137 | } } // namespace v8::internal |
| 138 | |
| 139 | namespace i = v8::internal; |
| 140 | |
| 141 | #endif // V8_V8_H_ |