projects / apple / javascriptcore.git / blame
| Commit | Line | Data |
|---|---|---|
| 14957cd0 A |
1 | /* |
| 2 | * Copyright (C) 2011 University of Szeged | |
| 3 | * Copyright (C) 2011 Gabor Loki <loki@webkit.org> | |
| 4 | * All rights reserved. | |
| 5 | * | |
| 6 | * Redistribution and use in source and binary forms, with or without | |
| 7 | * modification, are permitted provided that the following conditions | |
| 8 | * are met: | |
| 9 | * 1. Redistributions of source code must retain the above copyright | |
| 10 | * notice, this list of conditions and the following disclaimer. | |
| 11 | * 2. Redistributions in binary form must reproduce the above copyright | |
| 12 | * notice, this list of conditions and the following disclaimer in the | |
| 13 | * documentation and/or other materials provided with the distribution. | |
| 14 | * | |
| 15 | * THIS SOFTWARE IS PROVIDED BY UNIVERSITY OF SZEGED ``AS IS'' AND ANY | |
| 16 | * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
| 17 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR | |
| 18 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL UNIVERSITY OF SZEGED OR | |
| 19 | * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, | |
| 20 | * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, | |
| 21 | * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR | |
| 22 | * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY | |
| 23 | * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
| 24 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | |
| 25 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
| 26 | */ | |
| 27 | ||
| 28 | #ifndef ParallelJobs_h | |
| 29 | #define ParallelJobs_h | |
| 30 | ||
| 31 | #include "Assertions.h" | |
| 32 | #include "Noncopyable.h" | |
| 33 | #include "RefPtr.h" | |
| 34 | #include <wtf/Vector.h> | |
| 35 | ||
| 36 | #if ENABLE(PARALLEL_JOBS) | |
| 37 | ||
| 38 | // Usage: | |
| 39 | // | |
| 40 | // #if ENABLE(PARALLEL_JOBS) | |
| 41 | // | |
| 42 | // // Initialize parallel jobs | |
| 43 | // ParallelJobs<TypeOfParameter> parallelJobs(&worker [, requestedNumberOfJobs]); | |
| 44 | // | |
| 45 | // // Fill the parameter array | |
| 46 | // for(i = 0; i < parallelJobs.numberOfJobs(); ++i) { | |
| 47 | // TypeOfParameter& params = parallelJobs.parameter(i); | |
| 48 | // params.attr1 = localVars ... | |
| 49 | // ... | |
| 50 | // } | |
| 51 | // | |
| 52 | // // Execute parallel jobs | |
| 53 | // parallelJobs.execute(); | |
| 54 | // | |
| 55 | // #else | |
| 56 | // | |
| 57 | // inlineFunction(args...); | |
| 58 | // | |
| 59 | // #endif // ENABLE(PARALLEL_JOBS) | |
| 60 | ||
| 61 | #if ENABLE(THREADING_GENERIC) | |
| 62 | #include "ParallelJobsGeneric.h" | |
| 63 | ||
| 64 | #elif ENABLE(THREADING_OPENMP) | |
| 65 | #include "ParallelJobsOpenMP.h" | |
| 66 | ||
| 67 | #elif ENABLE(THREADING_LIBDISPATCH) | |
| 68 | #include "ParallelJobsLibdispatch.h" | |
| 69 | ||
| 70 | #else | |
| 71 | #error "No parallel processing API for ParallelJobs" | |
| 72 | ||
| 73 | #endif | |
| 74 | ||
| 75 | namespace WTF { | |
| 76 | ||
| 77 | template<typename Type> | |
| 78 | class ParallelJobs { | |
| 79 | WTF_MAKE_FAST_ALLOCATED; | |
| 80 | public: | |
| 81 | typedef void (*WorkerFunction)(Type*); | |
| 82 | ||
| 83 | ParallelJobs(WorkerFunction func, int requestedJobNumber = 0) : | |
| 84 | m_parallelEnvironment(reinterpret_cast<ParallelEnvironment::ThreadFunction>(func), sizeof(Type), requestedJobNumber) | |
| 85 | { | |
| 86 | m_parameters.grow(m_parallelEnvironment.numberOfJobs()); | |
| 87 | ASSERT(numberOfJobs() == m_parameters.size()); | |
| 88 | } | |
| 89 | ||
| 90 | size_t numberOfJobs() | |
| 91 | { | |
| 92 | return m_parameters.size(); | |
| 93 | } | |
| 94 | ||
| 95 | Type& parameter(size_t i) | |
| 96 | { | |
| 97 | return m_parameters[i]; | |
| 98 | } | |
| 99 | ||
| 100 | void execute() | |
| 101 | { | |
| 102 | m_parallelEnvironment.execute(reinterpret_cast<unsigned char*>(m_parameters.data())); | |
| 103 | } | |
| 104 | ||
| 105 | private: | |
| 106 | ParallelEnvironment m_parallelEnvironment; | |
| 107 | Vector<Type> m_parameters; | |
| 108 | }; | |
| 109 | ||
| 110 | } // namespace WTF | |
| 111 | ||
| 112 | using WTF::ParallelJobs; | |
| 113 | ||
| 114 | #endif // ENABLE(PARALLEL_JOBS) | |
| 115 | ||
| 116 | #endif // ParallelJobs_h |