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Issue 295373003: Reland 21482 - "Merge v8globals.h and globals.h" (Closed) Base URL: https://v8.googlecode.com/svn/branches/bleeding_edge
Patch Set: Created 6 years, 7 months ago
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1 // Copyright 2012 the V8 project authors. All rights reserved. 1 // Copyright 2012 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 // This module contains the platform-specific code. This make the rest of the 5 // This module contains the platform-specific code. This make the rest of the
6 // code less dependent on operating system, compilers and runtime libraries. 6 // code less dependent on operating system, compilers and runtime libraries.
7 // This module does specifically not deal with differences between different 7 // This module does specifically not deal with differences between different
8 // processor architecture. 8 // processor architecture.
9 // The platform classes have the same definition for all platforms. The 9 // The platform classes have the same definition for all platforms. The
10 // implementation for a particular platform is put in platform_<os>.cc. 10 // implementation for a particular platform is put in platform_<os>.cc.
11 // The build system then uses the implementation for the target platform. 11 // The build system then uses the implementation for the target platform.
12 // 12 //
13 // This design has been chosen because it is simple and fast. Alternatively, 13 // This design has been chosen because it is simple and fast. Alternatively,
14 // the platform dependent classes could have been implemented using abstract 14 // the platform dependent classes could have been implemented using abstract
15 // superclasses with virtual methods and having specializations for each 15 // superclasses with virtual methods and having specializations for each
16 // platform. This design was rejected because it was more complicated and 16 // platform. This design was rejected because it was more complicated and
17 // slower. It would require factory methods for selecting the right 17 // slower. It would require factory methods for selecting the right
18 // implementation and the overhead of virtual methods for performance 18 // implementation and the overhead of virtual methods for performance
19 // sensitive like mutex locking/unlocking. 19 // sensitive like mutex locking/unlocking.
20 20
21 #ifndef V8_PLATFORM_H_ 21 #ifndef V8_PLATFORM_H_
22 #define V8_PLATFORM_H_ 22 #define V8_PLATFORM_H_
23 23
24 #include <stdarg.h> 24 #include <stdarg.h>
25 25
26 #include "platform/mutex.h" 26 #include "platform/mutex.h"
27 #include "platform/semaphore.h" 27 #include "platform/semaphore.h"
28 #include "globals.h"
28 #include "vector.h" 29 #include "vector.h"
29 #include "v8globals.h"
30 30
31 #ifdef __sun 31 #ifdef __sun
32 # ifndef signbit 32 # ifndef signbit
33 namespace std { 33 namespace std {
34 int signbit(double x); 34 int signbit(double x);
35 } 35 }
36 # endif 36 # endif
37 #endif 37 #endif
38 38
39 #if V8_OS_QNX 39 #if V8_OS_QNX
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584 char name_[kMaxThreadNameLength]; 584 char name_[kMaxThreadNameLength];
585 int stack_size_; 585 int stack_size_;
586 Semaphore* start_semaphore_; 586 Semaphore* start_semaphore_;
587 587
588 DISALLOW_COPY_AND_ASSIGN(Thread); 588 DISALLOW_COPY_AND_ASSIGN(Thread);
589 }; 589 };
590 590
591 } } // namespace v8::internal 591 } } // namespace v8::internal
592 592
593 #endif // V8_PLATFORM_H_ 593 #endif // V8_PLATFORM_H_
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