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Side by Side Diff: runtime/vm/longjump.h

Issue 1299653003: Migrate LongJumpScope to Thread. (Closed) Base URL: git@github.com:dart-lang/sdk.git@master
Patch Set: Assert current isolate. Created 5 years, 4 months ago
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1 // Copyright (c) 2011, the Dart project authors. Please see the AUTHORS file 1 // Copyright (c) 2011, the Dart project authors. Please see the AUTHORS file
2 // for details. All rights reserved. Use of this source code is governed by a 2 // for details. All rights reserved. Use of this source code is governed by a
3 // BSD-style license that can be found in the LICENSE file. 3 // BSD-style license that can be found in the LICENSE file.
4 4
5 #ifndef VM_LONGJUMP_H_ 5 #ifndef VM_LONGJUMP_H_
6 #define VM_LONGJUMP_H_ 6 #define VM_LONGJUMP_H_
7 7
8 #include <setjmp.h> 8 #include <setjmp.h>
9 9
10 #include "vm/allocation.h" 10 #include "vm/allocation.h"
11 #include "vm/isolate.h" 11 #include "vm/isolate.h"
12 12
13 namespace dart { 13 namespace dart {
14 14
15 class Error; 15 class Error;
16 16
17 class LongJumpScope : public StackResource { 17 class LongJumpScope : public StackResource {
18 public: 18 public:
19 LongJumpScope() 19 LongJumpScope()
20 : StackResource(Isolate::Current()), 20 : StackResource(Thread::Current()),
21 top_(NULL), 21 top_(NULL),
22 base_(Isolate::Current()->long_jump_base()) { 22 base_(Thread::Current()->long_jump_base()) {
23 Isolate::Current()->set_long_jump_base(this); 23 Thread::Current()->set_long_jump_base(this);
24 } 24 }
25 25
26 ~LongJumpScope() { 26 ~LongJumpScope() {
27 Isolate::Current()->set_long_jump_base(base_); 27 Thread::Current()->set_long_jump_base(base_);
28 } 28 }
29 29
30 jmp_buf* Set(); 30 jmp_buf* Set();
31 void Jump(int value, const Error& error); 31 void Jump(int value, const Error& error);
32 32
33 // Would it be safe to use this longjump? 33 // Would it be safe to use this longjump?
34 // 34 //
35 // Checks to make sure that the jump would not cross Dart frames. 35 // Checks to make sure that the jump would not cross Dart frames.
36 bool IsSafeToJump(); 36 bool IsSafeToJump();
37 37
38 private: 38 private:
39 jmp_buf environment_; 39 jmp_buf environment_;
40 StackResource* top_; 40 StackResource* top_;
41 LongJumpScope* base_; 41 LongJumpScope* base_;
42 42
43 DISALLOW_COPY_AND_ASSIGN(LongJumpScope); 43 DISALLOW_COPY_AND_ASSIGN(LongJumpScope);
44 }; 44 };
45 45
46 } // namespace dart 46 } // namespace dart
47 47
48 #endif // VM_LONGJUMP_H_ 48 #endif // VM_LONGJUMP_H_
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