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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 // 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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129 int sampler_window_weight_[kSamplerWindowSize]; | 129 int sampler_window_weight_[kSamplerWindowSize]; |
130 | 130 |
131 bool any_ic_changed_; | 131 bool any_ic_changed_; |
132 bool code_generated_; | 132 bool code_generated_; |
133 int total_code_generated_; | 133 int total_code_generated_; |
134 | 134 |
135 // Possible state values: | 135 // Possible state values: |
136 // -1 => the profiler thread is waiting on the semaphore | 136 // -1 => the profiler thread is waiting on the semaphore |
137 // 0 or positive => the number of isolates running JavaScript code. | 137 // 0 or positive => the number of isolates running JavaScript code. |
138 static Atomic32 state_; | 138 static Atomic32 state_; |
139 static Semaphore* semaphore_; | |
140 | 139 |
141 #ifdef DEBUG | 140 #ifdef DEBUG |
142 static bool has_been_globally_set_up_; | 141 static bool has_been_globally_set_up_; |
143 #endif | 142 #endif |
144 static bool enabled_; | 143 static bool enabled_; |
145 }; | 144 }; |
146 | 145 |
147 | 146 |
148 // Rate limiter intended to be used in the profiler thread. | 147 // Rate limiter intended to be used in the profiler thread. |
149 class RuntimeProfilerRateLimiter BASE_EMBEDDED { | 148 class RuntimeProfilerRateLimiter BASE_EMBEDDED { |
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179 | 178 |
180 void RuntimeProfiler::IsolateExitedJS(Isolate* isolate) { | 179 void RuntimeProfiler::IsolateExitedJS(Isolate* isolate) { |
181 Atomic32 new_state = NoBarrier_AtomicIncrement(&state_, -1); | 180 Atomic32 new_state = NoBarrier_AtomicIncrement(&state_, -1); |
182 ASSERT(new_state >= 0); | 181 ASSERT(new_state >= 0); |
183 USE(new_state); | 182 USE(new_state); |
184 } | 183 } |
185 | 184 |
186 } } // namespace v8::internal | 185 } } // namespace v8::internal |
187 | 186 |
188 #endif // V8_RUNTIME_PROFILER_H_ | 187 #endif // V8_RUNTIME_PROFILER_H_ |
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