ager@chromium.org | 9258b6b | 2008-09-11 09:11:10 +0000 | [diff] [blame] | 1 | // Copyright 2006-2008 the V8 project authors. All rights reserved. |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +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 | |
sgjesse@chromium.org | ea88ce9 | 2011-03-23 11:19:56 +0000 | [diff] [blame] | 28 | #include "isolate.h" |
| 29 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 30 | #ifndef V8_SNAPSHOT_H_ |
| 31 | #define V8_SNAPSHOT_H_ |
| 32 | |
kasperl@chromium.org | 71affb5 | 2009-05-26 05:44:31 +0000 | [diff] [blame] | 33 | namespace v8 { |
| 34 | namespace internal { |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 35 | |
danno@chromium.org | 40cb878 | 2011-05-25 07:58:50 +0000 | [diff] [blame] | 36 | class Snapshot { |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 37 | public: |
| 38 | // Initialize the VM from the given snapshot file. If snapshot_file is |
| 39 | // NULL, use the internal snapshot instead. Returns false if no snapshot |
| 40 | // could be found. |
| 41 | static bool Initialize(const char* snapshot_file = NULL); |
| 42 | |
yangguo@chromium.org | 5a11aaf | 2012-06-20 11:29:00 +0000 | [diff] [blame] | 43 | static bool HaveASnapshotToStartFrom(); |
| 44 | |
kmillikin@chromium.org | 5d8f0e6 | 2010-03-24 08:21:20 +0000 | [diff] [blame] | 45 | // Create a new context using the internal partial snapshot. |
| 46 | static Handle<Context> NewContextFromSnapshot(); |
| 47 | |
ager@chromium.org | 9258b6b | 2008-09-11 09:11:10 +0000 | [diff] [blame] | 48 | // Returns whether or not the snapshot is enabled. |
| 49 | static bool IsEnabled() { return size_ != 0; } |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 50 | |
| 51 | // Write snapshot to the given file. Returns true if snapshot was written |
| 52 | // successfully. |
| 53 | static bool WriteToFile(const char* snapshot_file); |
| 54 | |
sgjesse@chromium.org | 8e8294a | 2011-05-02 14:30:53 +0000 | [diff] [blame] | 55 | static const byte* data() { return data_; } |
| 56 | static int size() { return size_; } |
| 57 | static int raw_size() { return raw_size_; } |
| 58 | static void set_raw_data(const byte* raw_data) { |
| 59 | raw_data_ = raw_data; |
| 60 | } |
| 61 | static const byte* context_data() { return context_data_; } |
| 62 | static int context_size() { return context_size_; } |
| 63 | static int context_raw_size() { return context_raw_size_; } |
| 64 | static void set_context_raw_data( |
| 65 | const byte* context_raw_data) { |
| 66 | context_raw_data_ = context_raw_data; |
| 67 | } |
| 68 | |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 69 | private: |
ager@chromium.org | ddb913d | 2009-01-27 10:01:48 +0000 | [diff] [blame] | 70 | static const byte data_[]; |
sgjesse@chromium.org | 8e8294a | 2011-05-02 14:30:53 +0000 | [diff] [blame] | 71 | static const byte* raw_data_; |
kmillikin@chromium.org | 5d8f0e6 | 2010-03-24 08:21:20 +0000 | [diff] [blame] | 72 | static const byte context_data_[]; |
sgjesse@chromium.org | 8e8294a | 2011-05-02 14:30:53 +0000 | [diff] [blame] | 73 | static const byte* context_raw_data_; |
kmillikin@chromium.org | 5d8f0e6 | 2010-03-24 08:21:20 +0000 | [diff] [blame] | 74 | static const int new_space_used_; |
| 75 | static const int pointer_space_used_; |
| 76 | static const int data_space_used_; |
| 77 | static const int code_space_used_; |
| 78 | static const int map_space_used_; |
| 79 | static const int cell_space_used_; |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 80 | static const int context_new_space_used_; |
| 81 | static const int context_pointer_space_used_; |
| 82 | static const int context_data_space_used_; |
| 83 | static const int context_code_space_used_; |
| 84 | static const int context_map_space_used_; |
| 85 | static const int context_cell_space_used_; |
kmillikin@chromium.org | 5d8f0e6 | 2010-03-24 08:21:20 +0000 | [diff] [blame] | 86 | static const int size_; |
sgjesse@chromium.org | 8e8294a | 2011-05-02 14:30:53 +0000 | [diff] [blame] | 87 | static const int raw_size_; |
kmillikin@chromium.org | 5d8f0e6 | 2010-03-24 08:21:20 +0000 | [diff] [blame] | 88 | static const int context_size_; |
sgjesse@chromium.org | 8e8294a | 2011-05-02 14:30:53 +0000 | [diff] [blame] | 89 | static const int context_raw_size_; |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 90 | |
ulan@chromium.org | 56c14af | 2012-09-20 12:51:09 +0000 | [diff] [blame] | 91 | static void ReserveSpaceForLinkedInSnapshot(Deserializer* deserializer); |
christian.plesner.hansen | 43d26ec | 2008-07-03 15:10:15 +0000 | [diff] [blame] | 92 | |
| 93 | DISALLOW_IMPLICIT_CONSTRUCTORS(Snapshot); |
| 94 | }; |
| 95 | |
| 96 | } } // namespace v8::internal |
| 97 | |
| 98 | #endif // V8_SNAPSHOT_H_ |