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1 // Copyright 2011 the V8 project authors. All rights reserved. | 1 // Copyright 2011 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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1922 delete profiler_; | 1922 delete profiler_; |
1923 profiler_ = NULL; | 1923 profiler_ = NULL; |
1924 } | 1924 } |
1925 | 1925 |
1926 delete ticker_; | 1926 delete ticker_; |
1927 ticker_ = NULL; | 1927 ticker_ = NULL; |
1928 | 1928 |
1929 return log_->Close(); | 1929 return log_->Close(); |
1930 } | 1930 } |
1931 | 1931 |
1932 | |
1933 // Protects the state below. | |
1934 static Mutex* active_samplers_mutex = NULL; | |
1935 | |
1936 List<Sampler*>* SamplerRegistry::active_samplers_ = NULL; | |
1937 | |
1938 | |
1939 void SamplerRegistry::SetUp() { | |
1940 if (!active_samplers_mutex) { | |
1941 active_samplers_mutex = OS::CreateMutex(); | |
1942 } | |
1943 } | |
1944 | |
1945 | |
1946 bool SamplerRegistry::IterateActiveSamplers(VisitSampler func, void* param) { | |
1947 ScopedLock lock(active_samplers_mutex); | |
1948 for (int i = 0; | |
1949 ActiveSamplersExist() && i < active_samplers_->length(); | |
1950 ++i) { | |
1951 func(active_samplers_->at(i), param); | |
1952 } | |
1953 return ActiveSamplersExist(); | |
1954 } | |
1955 | |
1956 | |
1957 static void ComputeCpuProfiling(Sampler* sampler, void* flag_ptr) { | |
1958 bool* flag = reinterpret_cast<bool*>(flag_ptr); | |
1959 *flag |= sampler->IsProfiling(); | |
1960 } | |
1961 | |
1962 | |
1963 SamplerRegistry::State SamplerRegistry::GetState() { | |
1964 bool flag = false; | |
1965 if (!IterateActiveSamplers(&ComputeCpuProfiling, &flag)) { | |
1966 return HAS_NO_SAMPLERS; | |
1967 } | |
1968 return flag ? HAS_CPU_PROFILING_SAMPLERS : HAS_SAMPLERS; | |
1969 } | |
1970 | |
1971 | |
1972 void SamplerRegistry::AddActiveSampler(Sampler* sampler) { | |
1973 ASSERT(sampler->IsActive()); | |
1974 ScopedLock lock(active_samplers_mutex); | |
1975 if (active_samplers_ == NULL) { | |
1976 active_samplers_ = new List<Sampler*>; | |
1977 } else { | |
1978 ASSERT(!active_samplers_->Contains(sampler)); | |
1979 } | |
1980 active_samplers_->Add(sampler); | |
1981 } | |
1982 | |
1983 | |
1984 void SamplerRegistry::RemoveActiveSampler(Sampler* sampler) { | |
1985 ASSERT(sampler->IsActive()); | |
1986 ScopedLock lock(active_samplers_mutex); | |
1987 ASSERT(active_samplers_ != NULL); | |
1988 bool removed = active_samplers_->RemoveElement(sampler); | |
1989 ASSERT(removed); | |
1990 USE(removed); | |
1991 } | |
1992 | |
1993 } } // namespace v8::internal | 1932 } } // namespace v8::internal |
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