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| 1 // Copyright 2006-2009 the V8 project authors. All rights reserved. | 1 // Copyright 2006-2009 the V8 project authors. All rights reserved. |
| 2 // Redistribution and use in source and binary forms, with or without | 2 // Redistribution and use in source and binary forms, with or without |
| 3 // modification, are permitted provided that the following conditions are | 3 // modification, are permitted provided that the following conditions are |
| 4 // met: | 4 // met: |
| 5 // | 5 // |
| 6 // * Redistributions of source code must retain the above copyright | 6 // * Redistributions of source code must retain the above copyright |
| 7 // notice, this list of conditions and the following disclaimer. | 7 // notice, this list of conditions and the following disclaimer. |
| 8 // * Redistributions in binary form must reproduce the above | 8 // * Redistributions in binary form must reproduce the above |
| 9 // copyright notice, this list of conditions and the following | 9 // copyright notice, this list of conditions and the following |
| 10 // disclaimer in the documentation and/or other materials provided | 10 // disclaimer in the documentation and/or other materials provided |
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| 45 #include <errno.h> | 45 #include <errno.h> |
| 46 #include <ieeefp.h> // finite() | 46 #include <ieeefp.h> // finite() |
| 47 #include <signal.h> // sigemptyset(), etc | 47 #include <signal.h> // sigemptyset(), etc |
| 48 | 48 |
| 49 | 49 |
| 50 #undef MAP_TYPE | 50 #undef MAP_TYPE |
| 51 | 51 |
| 52 #include "v8.h" | 52 #include "v8.h" |
| 53 | 53 |
| 54 #include "platform.h" | 54 #include "platform.h" |
| 55 #include "vm-state-inl.h" |
| 55 | 56 |
| 56 | 57 |
| 57 // It seems there is a bug in some Solaris distributions (experienced in | 58 // It seems there is a bug in some Solaris distributions (experienced in |
| 58 // SunOS 5.10 Generic_141445-09) which make it difficult or impossible to | 59 // SunOS 5.10 Generic_141445-09) which make it difficult or impossible to |
| 59 // access signbit() despite the availability of other C99 math functions. | 60 // access signbit() despite the availability of other C99 math functions. |
| 60 #ifndef signbit | 61 #ifndef signbit |
| 61 // Test sign - usually defined in math.h | 62 // Test sign - usually defined in math.h |
| 62 int signbit(double x) { | 63 int signbit(double x) { |
| 63 // We need to take care of the special case of both positive and negative | 64 // We need to take care of the special case of both positive and negative |
| 64 // versions of zero. | 65 // versions of zero. |
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| 597 PlatformData() { | 598 PlatformData() { |
| 598 signal_handler_installed_ = false; | 599 signal_handler_installed_ = false; |
| 599 } | 600 } |
| 600 | 601 |
| 601 bool signal_handler_installed_; | 602 bool signal_handler_installed_; |
| 602 struct sigaction old_signal_handler_; | 603 struct sigaction old_signal_handler_; |
| 603 struct itimerval old_timer_value_; | 604 struct itimerval old_timer_value_; |
| 604 }; | 605 }; |
| 605 | 606 |
| 606 | 607 |
| 607 Sampler::Sampler(Isolate* isolate, int interval, bool profiling) | 608 Sampler::Sampler(Isolate* isolate, int interval) |
| 608 : isolate_(isolate), | 609 : isolate_(isolate), |
| 609 interval_(interval), | 610 interval_(interval), |
| 610 profiling_(profiling), | 611 profiling_(false), |
| 611 synchronous_(profiling), | |
| 612 active_(false), | 612 active_(false), |
| 613 samples_taken_(0) { | 613 samples_taken_(0) { |
| 614 data_ = new PlatformData(); | 614 data_ = new PlatformData(); |
| 615 } | 615 } |
| 616 | 616 |
| 617 | 617 |
| 618 Sampler::~Sampler() { | 618 Sampler::~Sampler() { |
| 619 delete data_; | 619 delete data_; |
| 620 } | 620 } |
| 621 | 621 |
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| 656 } | 656 } |
| 657 | 657 |
| 658 // This sampler is no longer the active sampler. | 658 // This sampler is no longer the active sampler. |
| 659 active_sampler_ = NULL; | 659 active_sampler_ = NULL; |
| 660 active_ = false; | 660 active_ = false; |
| 661 } | 661 } |
| 662 | 662 |
| 663 #endif // ENABLE_LOGGING_AND_PROFILING | 663 #endif // ENABLE_LOGGING_AND_PROFILING |
| 664 | 664 |
| 665 } } // namespace v8::internal | 665 } } // namespace v8::internal |
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