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Side by Side Diff: src/snapshot.h

Issue 315033002: Support external startup data in V8. (Closed) Base URL: https://v8.googlecode.com/svn/branches/bleeding_edge
Patch Set: Fix build issue by making sure the target is empty (as opposed to not the chain of depedencies) whe… Created 6 years, 6 months ago
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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 // Use of this source code is governed by a BSD-style license that can be 2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file. 3 // found in the LICENSE file.
4 4
5 #include "src/isolate.h" 5 #include "src/isolate.h"
6 6
7 #ifndef V8_SNAPSHOT_H_ 7 #ifndef V8_SNAPSHOT_H_
8 #define V8_SNAPSHOT_H_ 8 #define V8_SNAPSHOT_H_
9 9
10 namespace v8 { 10 namespace v8 {
11 namespace internal { 11 namespace internal {
12 12
13 class Snapshot { 13 class Snapshot {
14 public: 14 public:
15 // Initialize the VM from the given snapshot file. If snapshot_file is 15 // Initialize the VM from the internal snapshot. Returns false if no snapshot
16 // NULL, use the internal snapshot instead. Returns false if no snapshot
17 // could be found. 16 // could be found.
18 static bool Initialize(const char* snapshot_file = NULL); 17 static bool Initialize();
19 18
20 static bool HaveASnapshotToStartFrom(); 19 static bool HaveASnapshotToStartFrom();
21 20
22 // Create a new context using the internal partial snapshot. 21 // Create a new context using the internal partial snapshot.
23 static Handle<Context> NewContextFromSnapshot(Isolate* isolate); 22 static Handle<Context> NewContextFromSnapshot(Isolate* isolate);
24 23
25 // Returns whether or not the snapshot is enabled. 24 // These methods support COMPRESS_STARTUP_DATA_BZ2.
26 static bool IsEnabled() { return size_ != 0; }
27
28 // Write snapshot to the given file. Returns true if snapshot was written
29 // successfully.
30 static bool WriteToFile(const char* snapshot_file);
31
32 static const byte* data() { return data_; } 25 static const byte* data() { return data_; }
33 static int size() { return size_; } 26 static int size() { return size_; }
34 static int raw_size() { return raw_size_; } 27 static int raw_size() { return raw_size_; }
35 static void set_raw_data(const byte* raw_data) { 28 static void set_raw_data(const byte* raw_data) {
36 raw_data_ = raw_data; 29 raw_data_ = raw_data;
37 } 30 }
38 static const byte* context_data() { return context_data_; } 31 static const byte* context_data() { return context_data_; }
39 static int context_size() { return context_size_; } 32 static int context_size() { return context_size_; }
40 static int context_raw_size() { return context_raw_size_; } 33 static int context_raw_size() { return context_raw_size_; }
41 static void set_context_raw_data( 34 static void set_context_raw_data(
(...skipping 23 matching lines...) Expand all
65 static const int size_; 58 static const int size_;
66 static const int raw_size_; 59 static const int raw_size_;
67 static const int context_size_; 60 static const int context_size_;
68 static const int context_raw_size_; 61 static const int context_raw_size_;
69 62
70 static void ReserveSpaceForLinkedInSnapshot(Deserializer* deserializer); 63 static void ReserveSpaceForLinkedInSnapshot(Deserializer* deserializer);
71 64
72 DISALLOW_IMPLICIT_CONSTRUCTORS(Snapshot); 65 DISALLOW_IMPLICIT_CONSTRUCTORS(Snapshot);
73 }; 66 };
74 67
68 #ifdef V8_USE_EXTERNAL_STARTUP_DATA
69 void SetSnapshotFromFile(StartupData* snapshot_blob);
70 #endif
71
75 } } // namespace v8::internal 72 } } // namespace v8::internal
76 73
77 #endif // V8_SNAPSHOT_H_ 74 #endif // V8_SNAPSHOT_H_
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