| 1 | /* | 
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| 2 | Copyright (c) 2005-2019 Intel Corporation | 
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| 3 |  | 
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| 4 | Licensed under the Apache License, Version 2.0 (the "License"); | 
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| 5 | you may not use this file except in compliance with the License. | 
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| 6 | You may obtain a copy of the License at | 
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| 7 |  | 
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| 8 | http://www.apache.org/licenses/LICENSE-2.0 | 
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| 9 |  | 
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| 10 | Unless required by applicable law or agreed to in writing, software | 
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| 11 | distributed under the License is distributed on an "AS IS" BASIS, | 
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| 12 | WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | 
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| 13 | See the License for the specific language governing permissions and | 
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| 14 | limitations under the License. | 
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| 15 | */ | 
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| 16 |  | 
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| 17 | //------------------------------------------------------------------------ | 
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| 18 | // Test TBB mutexes when used with parallel_for.h | 
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| 19 | // | 
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| 20 | // Usage: test_Mutex.exe [-v] nthread | 
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| 21 | // | 
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| 22 | // The -v option causes timing information to be printed. | 
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| 23 | // | 
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| 24 | // Compile with _OPENMP and -openmp | 
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| 25 | //------------------------------------------------------------------------ | 
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| 26 | #include "harness_defs.h" | 
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| 27 | #include "tbb/spin_mutex.h" | 
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| 28 | #include "tbb/critical_section.h" | 
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| 29 | #include "tbb/spin_rw_mutex.h" | 
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| 30 | #include "tbb/queuing_rw_mutex.h" | 
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| 31 | #include "tbb/queuing_mutex.h" | 
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| 32 | #include "tbb/mutex.h" | 
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| 33 | #include "tbb/recursive_mutex.h" | 
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| 34 | #include "tbb/null_mutex.h" | 
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| 35 | #include "tbb/null_rw_mutex.h" | 
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| 36 | #include "tbb/parallel_for.h" | 
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| 37 | #include "tbb/blocked_range.h" | 
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| 38 | #include "tbb/tick_count.h" | 
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| 39 | #include "tbb/atomic.h" | 
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| 40 | #include "harness.h" | 
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| 41 | #include <cstdlib> | 
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| 42 | #include <cstdio> | 
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| 43 | #if _OPENMP | 
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| 44 | #include "test/OpenMP_Mutex.h" | 
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| 45 | #endif /* _OPENMP */ | 
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| 46 | #include "tbb/tbb_profiling.h" | 
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| 47 |  | 
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| 48 | #ifndef TBB_TEST_LOW_WORKLOAD | 
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| 49 | #define TBB_TEST_LOW_WORKLOAD TBB_USE_THREADING_TOOLS | 
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| 50 | #endif | 
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| 51 |  | 
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| 52 | // This test deliberately avoids a "using tbb" statement, | 
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| 53 | // so that the error of putting types in the wrong namespace will be caught. | 
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| 54 |  | 
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| 55 | template<typename M> | 
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| 56 | struct Counter { | 
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| 57 | typedef M mutex_type; | 
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| 58 | M mutex; | 
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| 59 | volatile long value; | 
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| 60 | }; | 
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| 61 |  | 
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| 62 | //! Function object for use with parallel_for.h. | 
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| 63 | template<typename C> | 
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| 64 | struct AddOne: NoAssign { | 
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| 65 | C& counter; | 
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| 66 | /** Increments counter once for each iteration in the iteration space. */ | 
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| 67 | void operator()( tbb::blocked_range<size_t>& range ) const { | 
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| 68 | for( size_t i=range.begin(); i!=range.end(); ++i ) { | 
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| 69 | if( i&1 ) { | 
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| 70 | // Try implicit acquire and explicit release | 
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| 71 | typename C::mutex_type::scoped_lock lock(counter.mutex); | 
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| 72 | counter.value = counter.value+1; | 
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| 73 | lock.release(); | 
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| 74 | } else { | 
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| 75 | // Try explicit acquire and implicit release | 
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| 76 | typename C::mutex_type::scoped_lock lock; | 
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| 77 | lock.acquire(counter.mutex); | 
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| 78 | counter.value = counter.value+1; | 
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| 79 | } | 
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| 80 | } | 
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| 81 | } | 
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| 82 | AddOne( C& counter_ ) : counter(counter_) {} | 
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| 83 | }; | 
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| 84 |  | 
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| 85 | //! Adaptor for using ISO C++0x style mutex as a TBB-style mutex. | 
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| 86 | template<typename M> | 
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| 87 | class TBB_MutexFromISO_Mutex { | 
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| 88 | M my_iso_mutex; | 
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| 89 | public: | 
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| 90 | typedef TBB_MutexFromISO_Mutex mutex_type; | 
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| 91 |  | 
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| 92 | class scoped_lock; | 
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| 93 | friend class scoped_lock; | 
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| 94 |  | 
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| 95 | class scoped_lock { | 
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| 96 | mutex_type* my_mutex; | 
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| 97 | public: | 
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| 98 | scoped_lock() : my_mutex(NULL) {} | 
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| 99 | scoped_lock( mutex_type& m ) : my_mutex(NULL) { | 
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| 100 | acquire(m); | 
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| 101 | } | 
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| 102 | scoped_lock( mutex_type& m, bool is_writer ) : my_mutex(NULL) { | 
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| 103 | acquire(m,is_writer); | 
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| 104 | } | 
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| 105 | void acquire( mutex_type& m ) { | 
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| 106 | m.my_iso_mutex.lock(); | 
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| 107 | my_mutex = &m; | 
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| 108 | } | 
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| 109 | bool try_acquire( mutex_type& m ) { | 
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| 110 | if( m.my_iso_mutex.try_lock() ) { | 
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| 111 | my_mutex = &m; | 
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| 112 | return true; | 
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| 113 | } else { | 
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| 114 | return false; | 
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| 115 | } | 
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| 116 | } | 
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| 117 | void release() { | 
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| 118 | my_mutex->my_iso_mutex.unlock(); | 
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| 119 | my_mutex = NULL; | 
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| 120 | } | 
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| 121 |  | 
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| 122 | // Methods for reader-writer mutex | 
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| 123 | // These methods can be instantiated only if M supports lock_read() and try_lock_read(). | 
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| 124 |  | 
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| 125 | void acquire( mutex_type& m, bool is_writer ) { | 
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| 126 | if( is_writer ) m.my_iso_mutex.lock(); | 
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| 127 | else m.my_iso_mutex.lock_read(); | 
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| 128 | my_mutex = &m; | 
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| 129 | } | 
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| 130 | bool try_acquire( mutex_type& m, bool is_writer ) { | 
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| 131 | if( is_writer ? m.my_iso_mutex.try_lock() : m.my_iso_mutex.try_lock_read() ) { | 
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| 132 | my_mutex = &m; | 
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| 133 | return true; | 
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| 134 | } else { | 
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| 135 | return false; | 
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| 136 | } | 
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| 137 | } | 
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| 138 | bool upgrade_to_writer() { | 
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| 139 | my_mutex->my_iso_mutex.unlock(); | 
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| 140 | my_mutex->my_iso_mutex.lock(); | 
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| 141 | return false; | 
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| 142 | } | 
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| 143 | bool downgrade_to_reader() { | 
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| 144 | my_mutex->my_iso_mutex.unlock(); | 
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| 145 | my_mutex->my_iso_mutex.lock_read(); | 
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| 146 | return false; | 
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| 147 | } | 
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| 148 | ~scoped_lock() { | 
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| 149 | if( my_mutex ) | 
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| 150 | release(); | 
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| 151 | } | 
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| 152 | }; | 
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| 153 |  | 
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| 154 | static const bool is_recursive_mutex = M::is_recursive_mutex; | 
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| 155 | static const bool is_rw_mutex = M::is_rw_mutex; | 
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| 156 | }; | 
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| 157 |  | 
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| 158 | namespace tbb { | 
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| 159 | namespace profiling { | 
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| 160 | template<typename M> | 
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| 161 | void set_name( const TBB_MutexFromISO_Mutex<M>&, const char* ) {} | 
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| 162 | } | 
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| 163 | } | 
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| 164 |  | 
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| 165 | //! Generic test of a TBB mutex type M. | 
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| 166 | /** Does not test features specific to reader-writer locks. */ | 
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| 167 | template<typename M> | 
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| 168 | void Test( const char * name ) { | 
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| 169 | REMARK( "%s size == %d, time = ",name, sizeof(M)); | 
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| 170 | Counter<M> counter; | 
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| 171 | counter.value = 0; | 
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| 172 | tbb::profiling::set_name(counter.mutex, name); | 
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| 173 | #if TBB_TEST_LOW_WORKLOAD | 
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| 174 | const int n = 10000; | 
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| 175 | #else | 
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| 176 | const int n = 100000; | 
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| 177 | #endif /* TBB_TEST_LOW_WORKLOAD */ | 
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| 178 | tbb::tick_count t0 = tbb::tick_count::now(); | 
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| 179 | tbb::parallel_for(tbb::blocked_range<size_t>(0,n,n/10),AddOne<Counter<M> >(counter)); | 
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| 180 | tbb::tick_count t1 = tbb::tick_count::now(); | 
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| 181 | REMARK( "%g usec\n",(t1-t0).seconds()); | 
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| 182 | if( counter.value!=n ) | 
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| 183 | REPORT( "ERROR for %s: counter.value=%ld\n",name,counter.value); | 
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| 184 | } | 
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| 185 |  | 
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| 186 | template<typename M, size_t N> | 
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| 187 | struct Invariant { | 
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| 188 | typedef M mutex_type; | 
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| 189 | M mutex; | 
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| 190 | const char* mutex_name; | 
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| 191 | volatile long value[N]; | 
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| 192 | Invariant( const char* mutex_name_ ) : | 
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| 193 | mutex_name(mutex_name_) | 
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| 194 | { | 
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| 195 | for( size_t k=0; k<N; ++k ) | 
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| 196 | value[k] = 0; | 
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| 197 | tbb::profiling::set_name(mutex, mutex_name_); | 
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| 198 | } | 
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| 199 | ~Invariant() { | 
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| 200 | } | 
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| 201 | void update() { | 
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| 202 | for( size_t k=0; k<N; ++k ) | 
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| 203 | ++value[k]; | 
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| 204 | } | 
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| 205 | bool value_is( long expected_value ) const { | 
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| 206 | long tmp; | 
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| 207 | for( size_t k=0; k<N; ++k ) | 
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| 208 | if( (tmp=value[k])!=expected_value ) { | 
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| 209 | REPORT( "ERROR: %ld!=%ld\n", tmp, expected_value); | 
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| 210 | return false; | 
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| 211 | } | 
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| 212 | return true; | 
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| 213 | } | 
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| 214 | bool is_okay() { | 
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| 215 | return value_is( value[0] ); | 
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| 216 | } | 
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| 217 | }; | 
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| 218 |  | 
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| 219 | //! Function object for use with parallel_for.h. | 
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| 220 | template<typename I> | 
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| 221 | struct TwiddleInvariant: NoAssign { | 
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| 222 | I& invariant; | 
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| 223 | TwiddleInvariant( I& invariant_ ) : invariant(invariant_) {} | 
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| 224 |  | 
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| 225 | /** Increments counter once for each iteration in the iteration space. */ | 
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| 226 | void operator()( tbb::blocked_range<size_t>& range ) const { | 
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| 227 | for( size_t i=range.begin(); i!=range.end(); ++i ) { | 
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| 228 | //! Every 8th access is a write access | 
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| 229 | const bool write = (i%8)==7; | 
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| 230 | bool okay = true; | 
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| 231 | bool lock_kept = true; | 
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| 232 | if( (i/8)&1 ) { | 
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| 233 | // Try implicit acquire and explicit release | 
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| 234 | typename I::mutex_type::scoped_lock lock(invariant.mutex,write); | 
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| 235 | execute_aux(lock, i, write, /*ref*/okay, /*ref*/lock_kept); | 
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| 236 | lock.release(); | 
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| 237 | } else { | 
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| 238 | // Try explicit acquire and implicit release | 
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| 239 | typename I::mutex_type::scoped_lock lock; | 
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| 240 | lock.acquire(invariant.mutex,write); | 
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| 241 | execute_aux(lock, i, write, /*ref*/okay, /*ref*/lock_kept); | 
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| 242 | } | 
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| 243 | if( !okay ) { | 
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| 244 | REPORT( "ERROR for %s at %ld: %s %s %s %s\n",invariant.mutex_name, long(i), | 
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| 245 | write     ? "write,": "read,", | 
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| 246 | write     ? (i%16==7? "downgrade,": "") : (i%8==3? "upgrade,": ""), | 
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| 247 | lock_kept ? "lock kept,": "lock not kept,", // TODO: only if downgrade/upgrade | 
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| 248 | (i/8)&1   ? "impl/expl": "expl/impl"); | 
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| 249 | } | 
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| 250 | } | 
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| 251 | } | 
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| 252 | private: | 
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| 253 | void execute_aux(typename I::mutex_type::scoped_lock & lock, const size_t i, const bool write, bool & okay, bool & lock_kept) const { | 
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| 254 | if( write ) { | 
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| 255 | long my_value = invariant.value[0]; | 
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| 256 | invariant.update(); | 
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| 257 | if( i%16==7 ) { | 
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| 258 | lock_kept = lock.downgrade_to_reader(); | 
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| 259 | if( !lock_kept ) | 
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| 260 | my_value = invariant.value[0] - 1; | 
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| 261 | okay = invariant.value_is(my_value+1); | 
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| 262 | } | 
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| 263 | } else { | 
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| 264 | okay = invariant.is_okay(); | 
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| 265 | if( i%8==3 ) { | 
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| 266 | long my_value = invariant.value[0]; | 
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| 267 | lock_kept = lock.upgrade_to_writer(); | 
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| 268 | if( !lock_kept ) | 
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| 269 | my_value = invariant.value[0]; | 
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| 270 | invariant.update(); | 
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| 271 | okay = invariant.value_is(my_value+1); | 
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| 272 | } | 
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| 273 | } | 
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| 274 | } | 
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| 275 | }; | 
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| 276 |  | 
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| 277 | /** This test is generic so that we can test any other kinds of ReaderWriter locks we write later. */ | 
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| 278 | template<typename M> | 
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| 279 | void TestReaderWriterLock( const char * mutex_name ) { | 
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| 280 | REMARK( "%s readers & writers time = ", mutex_name ); | 
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| 281 | Invariant<M,8> invariant(mutex_name); | 
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| 282 | #if TBB_TEST_LOW_WORKLOAD | 
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| 283 | const size_t n = 10000; | 
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| 284 | #else | 
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| 285 | const size_t n = 500000; | 
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| 286 | #endif /* TBB_TEST_LOW_WORKLOAD */ | 
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| 287 | tbb::tick_count t0 = tbb::tick_count::now(); | 
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| 288 | tbb::parallel_for(tbb::blocked_range<size_t>(0,n,n/100),TwiddleInvariant<Invariant<M,8> >(invariant)); | 
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| 289 | tbb::tick_count t1 = tbb::tick_count::now(); | 
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| 290 | // There is either a writer or a reader upgraded to a writer for each 4th iteration | 
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| 291 | long expected_value = n/4; | 
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| 292 | if( !invariant.value_is(expected_value) ) | 
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| 293 | REPORT( "ERROR for %s: final invariant value is wrong\n",mutex_name); | 
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| 294 | REMARK( "%g usec\n", (t1-t0).seconds() ); | 
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| 295 | } | 
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| 296 |  | 
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| 297 | #if _MSC_VER && !defined(__INTEL_COMPILER) | 
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| 298 | // Suppress "conditional expression is constant" warning. | 
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| 299 | #pragma warning( push ) | 
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| 300 | #pragma warning( disable: 4127 ) | 
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| 301 | #endif | 
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| 302 |  | 
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| 303 | /** Test try_acquire_reader functionality of a non-reenterable reader-writer mutex */ | 
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| 304 | template<typename M> | 
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| 305 | void TestTryAcquireReader_OneThread( const char * mutex_name ) { | 
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| 306 | M tested_mutex; | 
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| 307 | typename M::scoped_lock lock1; | 
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| 308 | if( M::is_rw_mutex ) { | 
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| 309 | if( lock1.try_acquire(tested_mutex, false) ) | 
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| 310 | lock1.release(); | 
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| 311 | else | 
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| 312 | REPORT( "ERROR for %s: try_acquire failed though it should not\n", mutex_name); | 
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| 313 | { | 
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| 314 | typename M::scoped_lock lock2(tested_mutex, false);   // read lock | 
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| 315 | if( lock1.try_acquire(tested_mutex) )                 // attempt to acquire read | 
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| 316 | REPORT( "ERROR for %s: try_acquire succeeded though it should not (1)\n", mutex_name); | 
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| 317 | lock2.release();                                      // unlock | 
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| 318 | lock2.acquire(tested_mutex, true);                    // write lock | 
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| 319 | if( lock1.try_acquire(tested_mutex, false) )          // attempt to acquire read | 
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| 320 | REPORT( "ERROR for %s: try_acquire succeeded though it should not (2)\n", mutex_name); | 
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| 321 | } | 
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| 322 | if( lock1.try_acquire(tested_mutex, false) ) | 
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| 323 | lock1.release(); | 
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| 324 | else | 
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| 325 | REPORT( "ERROR for %s: try_acquire failed though it should not\n", mutex_name); | 
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| 326 | } | 
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| 327 | } | 
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| 328 |  | 
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| 329 | /** Test try_acquire functionality of a non-reenterable mutex */ | 
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| 330 | template<typename M> | 
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| 331 | void TestTryAcquire_OneThread( const char * mutex_name ) { | 
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| 332 | M tested_mutex; | 
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| 333 | typename M::scoped_lock lock1; | 
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| 334 | if( lock1.try_acquire(tested_mutex) ) | 
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| 335 | lock1.release(); | 
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| 336 | else | 
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| 337 | REPORT( "ERROR for %s: try_acquire failed though it should not\n", mutex_name); | 
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| 338 | { | 
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| 339 | if( M::is_recursive_mutex ) { | 
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| 340 | typename M::scoped_lock lock2(tested_mutex); | 
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| 341 | if( lock1.try_acquire(tested_mutex) ) | 
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| 342 | lock1.release(); | 
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| 343 | else | 
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| 344 | REPORT( "ERROR for %s: try_acquire on recursive lock failed though it should not\n", mutex_name); | 
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| 345 | //windows.. -- both are recursive | 
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| 346 | } else { | 
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| 347 | typename M::scoped_lock lock2(tested_mutex); | 
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| 348 | if( lock1.try_acquire(tested_mutex) ) | 
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| 349 | REPORT( "ERROR for %s: try_acquire succeeded though it should not (3)\n", mutex_name); | 
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| 350 | } | 
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| 351 | } | 
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| 352 | if( lock1.try_acquire(tested_mutex) ) | 
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| 353 | lock1.release(); | 
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| 354 | else | 
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| 355 | REPORT( "ERROR for %s: try_acquire failed though it should not\n", mutex_name); | 
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| 356 | } | 
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| 357 |  | 
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| 358 | #if _MSC_VER && !defined(__INTEL_COMPILER) | 
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| 359 | #pragma warning( pop ) | 
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| 360 | #endif | 
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| 361 |  | 
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| 362 | const int RecurN = 4; | 
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| 363 | int RecurArray[ RecurN ]; | 
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| 364 | tbb::recursive_mutex RecurMutex[ RecurN ]; | 
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| 365 |  | 
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| 366 | struct RecursiveAcquisition { | 
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| 367 | /** x = number being decoded in base N | 
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| 368 | max_lock = index of highest lock acquired so far | 
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| 369 | mask = bit mask; ith bit set if lock i has been acquired. */ | 
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| 370 | void Body( size_t x, int max_lock=-1, unsigned int mask=0 ) const | 
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| 371 | { | 
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| 372 | int i = (int) (x % RecurN); | 
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| 373 | bool first = (mask&1U<<i)==0; | 
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| 374 | if( first ) { | 
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| 375 | // first time to acquire lock | 
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| 376 | if( i<max_lock ) | 
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| 377 | // out of order acquisition might lead to deadlock, so stop | 
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| 378 | return; | 
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| 379 | max_lock = i; | 
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| 380 | } | 
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| 381 |  | 
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| 382 | if( (i&1)!=0 ) { | 
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| 383 | // acquire lock on location RecurArray[i] using explicit acquire | 
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| 384 | tbb::recursive_mutex::scoped_lock r_lock; | 
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| 385 | r_lock.acquire( RecurMutex[i] ); | 
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| 386 | int a = RecurArray[i]; | 
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| 387 | ASSERT( (a==0)==first, "should be either a==0 if it is the first time to acquire the lock or a!=0 otherwise"); | 
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| 388 | ++RecurArray[i]; | 
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| 389 | if( x ) | 
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| 390 | Body( x/RecurN, max_lock, mask|1U<<i ); | 
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| 391 | --RecurArray[i]; | 
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| 392 | ASSERT( a==RecurArray[i], "a is not equal to RecurArray[i]"); | 
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| 393 |  | 
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| 394 | // release lock on location RecurArray[i] using explicit release; otherwise, use implicit one | 
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| 395 | if( (i&2)!=0 ) r_lock.release(); | 
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| 396 | } else { | 
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| 397 | // acquire lock on location RecurArray[i] using implicit acquire | 
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| 398 | tbb::recursive_mutex::scoped_lock r_lock( RecurMutex[i] ); | 
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| 399 | int a = RecurArray[i]; | 
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| 400 |  | 
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| 401 | ASSERT( (a==0)==first, "should be either a==0 if it is the first time to acquire the lock or a!=0 otherwise"); | 
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| 402 |  | 
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| 403 | ++RecurArray[i]; | 
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| 404 | if( x ) | 
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| 405 | Body( x/RecurN, max_lock, mask|1U<<i ); | 
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| 406 | --RecurArray[i]; | 
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| 407 |  | 
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| 408 | ASSERT( a==RecurArray[i], "a is not equal to RecurArray[i]"); | 
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| 409 |  | 
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| 410 | // release lock on location RecurArray[i] using explicit release; otherwise, use implicit one | 
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| 411 | if( (i&2)!=0 ) r_lock.release(); | 
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| 412 | } | 
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| 413 | } | 
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| 414 |  | 
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| 415 | void operator()( const tbb::blocked_range<size_t> &r ) const | 
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| 416 | { | 
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| 417 | for( size_t x=r.begin(); x<r.end(); x++ ) { | 
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| 418 | Body( x ); | 
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| 419 | } | 
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| 420 | } | 
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| 421 | }; | 
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| 422 |  | 
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| 423 | /** This test is generic so that we may test other kinds of recursive mutexes.*/ | 
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| 424 | template<typename M> | 
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| 425 | void TestRecursiveMutex( const char * mutex_name ) | 
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| 426 | { | 
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| 427 | for ( int i = 0; i < RecurN; ++i ) { | 
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| 428 | tbb::profiling::set_name(RecurMutex[i], mutex_name); | 
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| 429 | } | 
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| 430 | tbb::tick_count t0 = tbb::tick_count::now(); | 
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| 431 | tbb::parallel_for(tbb::blocked_range<size_t>(0,10000,500), RecursiveAcquisition()); | 
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| 432 | tbb::tick_count t1 = tbb::tick_count::now(); | 
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| 433 | REMARK( "%s recursive mutex time = %g usec\n", mutex_name, (t1-t0).seconds() ); | 
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| 434 | } | 
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| 435 |  | 
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| 436 | template<typename C> | 
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| 437 | struct NullRecursive: NoAssign { | 
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| 438 | void recurse_till( size_t i, size_t till ) const { | 
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| 439 | if( i==till ) { | 
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| 440 | counter.value = counter.value+1; | 
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| 441 | return; | 
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| 442 | } | 
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| 443 | if( i&1 ) { | 
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| 444 | typename C::mutex_type::scoped_lock lock2(counter.mutex); | 
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| 445 | recurse_till( i+1, till ); | 
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| 446 | lock2.release(); | 
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| 447 | } else { | 
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| 448 | typename C::mutex_type::scoped_lock lock2; | 
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| 449 | lock2.acquire(counter.mutex); | 
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| 450 | recurse_till( i+1, till ); | 
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| 451 | } | 
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| 452 | } | 
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| 453 |  | 
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| 454 | void operator()( tbb::blocked_range<size_t>& range ) const { | 
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| 455 | typename C::mutex_type::scoped_lock lock(counter.mutex); | 
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| 456 | recurse_till( range.begin(), range.end() ); | 
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| 457 | } | 
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| 458 | NullRecursive( C& counter_ ) : counter(counter_) { | 
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| 459 | ASSERT( C::mutex_type::is_recursive_mutex, "Null mutex should be a recursive mutex."); | 
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| 460 | } | 
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| 461 | C& counter; | 
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| 462 | }; | 
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| 463 |  | 
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| 464 | template<typename M> | 
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| 465 | struct NullUpgradeDowngrade: NoAssign { | 
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| 466 | void operator()( tbb::blocked_range<size_t>& range ) const { | 
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| 467 | typename M::scoped_lock lock2; | 
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| 468 | for( size_t i=range.begin(); i!=range.end(); ++i ) { | 
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| 469 | if( i&1 ) { | 
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| 470 | typename M::scoped_lock lock1(my_mutex, true) ; | 
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| 471 | if( lock1.downgrade_to_reader()==false ) | 
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| 472 | REPORT( "ERROR for %s: downgrade should always succeed\n", name); | 
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| 473 | } else { | 
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| 474 | lock2.acquire( my_mutex, false ); | 
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| 475 | if( lock2.upgrade_to_writer()==false ) | 
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| 476 | REPORT( "ERROR for %s: upgrade should always succeed\n", name); | 
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| 477 | lock2.release(); | 
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| 478 | } | 
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| 479 | } | 
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| 480 | } | 
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| 481 |  | 
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| 482 | NullUpgradeDowngrade( M& m_, const char* n_ ) : my_mutex(m_), name(n_) {} | 
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| 483 | M& my_mutex; | 
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| 484 | const char* name; | 
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| 485 | } ; | 
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| 486 |  | 
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| 487 | template<typename M> | 
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| 488 | void TestNullMutex( const char * name ) { | 
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| 489 | Counter<M> counter; | 
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| 490 | counter.value = 0; | 
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| 491 | const int n = 100; | 
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| 492 | REMARK( "TestNullMutex<%s>",name); | 
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| 493 | { | 
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| 494 | tbb::parallel_for(tbb::blocked_range<size_t>(0,n,10),AddOne<Counter<M> >(counter)); | 
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| 495 | } | 
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| 496 | counter.value = 0; | 
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| 497 | { | 
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| 498 | tbb::parallel_for(tbb::blocked_range<size_t>(0,n,10),NullRecursive<Counter<M> >(counter)); | 
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| 499 | } | 
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| 500 | REMARK( "\n"); | 
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| 501 | } | 
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| 502 |  | 
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| 503 | template<typename M> | 
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| 504 | void TestNullRWMutex( const char * name ) { | 
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| 505 | REMARK( "TestNullRWMutex<%s>",name); | 
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| 506 | const int n = 100; | 
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| 507 | M m; | 
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| 508 | tbb::parallel_for(tbb::blocked_range<size_t>(0,n,10),NullUpgradeDowngrade<M>(m, name)); | 
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| 509 | REMARK( "\n"); | 
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| 510 | } | 
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| 511 |  | 
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| 512 | //! Test ISO C++0x compatibility portion of TBB mutex | 
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| 513 | template<typename M> | 
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| 514 | void TestISO( const char * name ) { | 
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| 515 | typedef TBB_MutexFromISO_Mutex<M> tbb_from_iso; | 
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| 516 | Test<tbb_from_iso>( name ); | 
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| 517 | } | 
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| 518 |  | 
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| 519 | //! Test ISO C++0x try_lock functionality of a non-reenterable mutex */ | 
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| 520 | template<typename M> | 
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| 521 | void TestTryAcquire_OneThreadISO( const char * name ) { | 
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| 522 | typedef TBB_MutexFromISO_Mutex<M> tbb_from_iso; | 
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| 523 | TestTryAcquire_OneThread<tbb_from_iso>( name ); | 
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| 524 | } | 
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| 525 |  | 
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| 526 | //! Test ISO-like C++0x compatibility portion of TBB reader-writer mutex | 
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| 527 | template<typename M> | 
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| 528 | void TestReaderWriterLockISO( const char * name ) { | 
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| 529 | typedef TBB_MutexFromISO_Mutex<M> tbb_from_iso; | 
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| 530 | TestReaderWriterLock<tbb_from_iso>( name ); | 
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| 531 | TestTryAcquireReader_OneThread<tbb_from_iso>( name ); | 
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| 532 | } | 
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| 533 |  | 
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| 534 | //! Test ISO C++0x compatibility portion of TBB recursive mutex | 
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| 535 | template<typename M> | 
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| 536 | void TestRecursiveMutexISO( const char * name ) { | 
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| 537 | typedef TBB_MutexFromISO_Mutex<M> tbb_from_iso; | 
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| 538 | TestRecursiveMutex<tbb_from_iso>(name); | 
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| 539 | } | 
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| 540 |  | 
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| 541 | #include "harness_tsx.h" | 
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| 542 | #include "tbb/task_scheduler_init.h" | 
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| 543 |  | 
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| 544 | #if __TBB_TSX_TESTING_ENABLED_FOR_THIS_COMPILER | 
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| 545 |  | 
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| 546 | //! Function object for use with parallel_for.h to see if a transaction is actually attempted. | 
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| 547 | tbb::atomic<size_t> n_transactions_attempted; | 
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| 548 | template<typename C> | 
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| 549 | struct AddOne_CheckTransaction: NoAssign { | 
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| 550 | C& counter; | 
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| 551 | /** Increments counter once for each iteration in the iteration space. */ | 
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| 552 | void operator()( tbb::blocked_range<size_t>& range ) const { | 
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| 553 | for( size_t i=range.begin(); i!=range.end(); ++i ) { | 
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| 554 | bool transaction_attempted = false; | 
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| 555 | { | 
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| 556 | typename C::mutex_type::scoped_lock lock(counter.mutex); | 
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| 557 | if( IsInsideTx() ) transaction_attempted = true; | 
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| 558 | counter.value = counter.value+1; | 
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| 559 | } | 
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| 560 | if( transaction_attempted ) ++n_transactions_attempted; | 
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| 561 | __TBB_Pause(i); | 
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| 562 | } | 
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| 563 | } | 
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| 564 | AddOne_CheckTransaction( C& counter_ ) : counter(counter_) {} | 
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| 565 | }; | 
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| 566 |  | 
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| 567 | /* TestTransaction() checks if a speculative mutex actually uses transactions. */ | 
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| 568 | template<typename M> | 
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| 569 | void TestTransaction( const char * name ) | 
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| 570 | { | 
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| 571 | Counter<M> counter; | 
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| 572 | #if TBB_TEST_LOW_WORKLOAD | 
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| 573 | const int n = 100; | 
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| 574 | #else | 
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| 575 | const int n = 1000; | 
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| 576 | #endif | 
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| 577 | REMARK( "TestTransaction with %s: ",name); | 
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| 578 |  | 
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| 579 | n_transactions_attempted = 0; | 
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| 580 | tbb::tick_count start, stop; | 
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| 581 | for( int i=0; i<5 && n_transactions_attempted==0; ++i ) { | 
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| 582 | counter.value = 0; | 
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| 583 | start = tbb::tick_count::now(); | 
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| 584 | tbb::parallel_for(tbb::blocked_range<size_t>(0,n,2),AddOne_CheckTransaction<Counter<M> >(counter)); | 
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| 585 | stop = tbb::tick_count::now(); | 
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| 586 | if( counter.value!=n ) { | 
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| 587 | REPORT( "ERROR for %s: counter.value=%ld\n",name,counter.value); | 
|---|
| 588 | break; | 
|---|
| 589 | } | 
|---|
| 590 | } | 
|---|
| 591 |  | 
|---|
| 592 | if( n_transactions_attempted==0 ) | 
|---|
| 593 | REPORT( "ERROR: transactions were never attempted\n"); | 
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| 594 | else | 
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| 595 | REMARK( "%d successful transactions in %6.6f seconds\n", (int)n_transactions_attempted, (stop - start).seconds()); | 
|---|
| 596 | } | 
|---|
| 597 | #endif  /* __TBB_TSX_TESTING_ENABLED_FOR_THIS_COMPILER */ | 
|---|
| 598 |  | 
|---|
| 599 | template<typename M> | 
|---|
| 600 | class RWStateMultipleChangeBody { | 
|---|
| 601 | M& my_mutex; | 
|---|
| 602 | public: | 
|---|
| 603 | RWStateMultipleChangeBody(M& m) : my_mutex(m) {} | 
|---|
| 604 |  | 
|---|
| 605 | void operator()(const tbb::blocked_range<size_t>& r) const { | 
|---|
| 606 | typename M::scoped_lock l(my_mutex, /*write=*/false); | 
|---|
| 607 | for(size_t i = r.begin(); i != r.end(); ++i) { | 
|---|
| 608 | ASSERT(l.downgrade_to_reader(), "Downgrade must succeed for read lock"); | 
|---|
| 609 | } | 
|---|
| 610 | l.upgrade_to_writer(); | 
|---|
| 611 | for(size_t i = r.begin(); i != r.end(); ++i) { | 
|---|
| 612 | ASSERT(l.upgrade_to_writer(), "Upgrade must succeed for write lock"); | 
|---|
| 613 | } | 
|---|
| 614 | } | 
|---|
| 615 | }; | 
|---|
| 616 |  | 
|---|
| 617 | template<typename M> | 
|---|
| 618 | void TestRWStateMultipleChange() { | 
|---|
| 619 | ASSERT(M::is_rw_mutex, "Incorrect mutex type"); | 
|---|
| 620 | size_t n = 10000; | 
|---|
| 621 | M mutex; | 
|---|
| 622 | RWStateMultipleChangeBody<M> body(mutex); | 
|---|
| 623 | tbb::parallel_for(tbb::blocked_range<size_t>(0, n, n/10), body); | 
|---|
| 624 | } | 
|---|
| 625 |  | 
|---|
| 626 | int TestMain () { | 
|---|
| 627 | for( int p=MinThread; p<=MaxThread; ++p ) { | 
|---|
| 628 | tbb::task_scheduler_init init( p ); | 
|---|
| 629 | REMARK( "testing with %d workers\n", static_cast<int>(p) ); | 
|---|
| 630 | #if TBB_TEST_LOW_WORKLOAD | 
|---|
| 631 | // The amount of work is decreased in this mode to bring the length | 
|---|
| 632 | // of the runs under tools into the tolerable limits. | 
|---|
| 633 | const int n = 1; | 
|---|
| 634 | #else | 
|---|
| 635 | const int n = 3; | 
|---|
| 636 | #endif | 
|---|
| 637 | // Run each test several times. | 
|---|
| 638 | for( int i=0; i<n; ++i ) { | 
|---|
| 639 | TestNullMutex<tbb::null_mutex>( "Null Mutex"); | 
|---|
| 640 | TestNullMutex<tbb::null_rw_mutex>( "Null RW Mutex"); | 
|---|
| 641 | TestNullRWMutex<tbb::null_rw_mutex>( "Null RW Mutex"); | 
|---|
| 642 | Test<tbb::spin_mutex>( "Spin Mutex"); | 
|---|
| 643 | Test<tbb::speculative_spin_mutex>( "Spin Mutex/speculative"); | 
|---|
| 644 | #if _OPENMP | 
|---|
| 645 | Test<OpenMP_Mutex>( "OpenMP_Mutex"); | 
|---|
| 646 | #endif /* _OPENMP */ | 
|---|
| 647 | Test<tbb::queuing_mutex>( "Queuing Mutex"); | 
|---|
| 648 | Test<tbb::mutex>( "Wrapper Mutex"); | 
|---|
| 649 | Test<tbb::recursive_mutex>( "Recursive Mutex"); | 
|---|
| 650 | Test<tbb::queuing_rw_mutex>( "Queuing RW Mutex"); | 
|---|
| 651 | Test<tbb::spin_rw_mutex>( "Spin RW Mutex"); | 
|---|
| 652 | Test<tbb::speculative_spin_rw_mutex>( "Spin RW Mutex/speculative"); | 
|---|
| 653 |  | 
|---|
| 654 | TestTryAcquire_OneThread<tbb::spin_mutex>( "Spin Mutex"); | 
|---|
| 655 | TestTryAcquire_OneThread<tbb::speculative_spin_mutex>( "Spin Mutex/speculative"); | 
|---|
| 656 | TestTryAcquire_OneThread<tbb::queuing_mutex>( "Queuing Mutex"); | 
|---|
| 657 | #if USE_PTHREAD | 
|---|
| 658 | // under ifdef because on Windows tbb::mutex is reenterable and the test will fail | 
|---|
| 659 | TestTryAcquire_OneThread<tbb::mutex>( "Wrapper Mutex"); | 
|---|
| 660 | #endif /* USE_PTHREAD */ | 
|---|
| 661 | TestTryAcquire_OneThread<tbb::recursive_mutex>( "Recursive Mutex"); | 
|---|
| 662 | TestTryAcquire_OneThread<tbb::spin_rw_mutex>( "Spin RW Mutex"); // only tests try_acquire for writers | 
|---|
| 663 | TestTryAcquire_OneThread<tbb::speculative_spin_rw_mutex>( "Spin RW Mutex/speculative"); // only tests try_acquire for writers | 
|---|
| 664 | TestTryAcquire_OneThread<tbb::queuing_rw_mutex>( "Queuing RW Mutex"); // only tests try_acquire for writers | 
|---|
| 665 |  | 
|---|
| 666 | TestTryAcquireReader_OneThread<tbb::spin_rw_mutex>( "Spin RW Mutex"); | 
|---|
| 667 | TestTryAcquireReader_OneThread<tbb::speculative_spin_rw_mutex>( "Spin RW Mutex/speculative"); | 
|---|
| 668 | TestTryAcquireReader_OneThread<tbb::queuing_rw_mutex>( "Queuing RW Mutex"); | 
|---|
| 669 |  | 
|---|
| 670 | TestReaderWriterLock<tbb::queuing_rw_mutex>( "Queuing RW Mutex"); | 
|---|
| 671 | TestReaderWriterLock<tbb::spin_rw_mutex>( "Spin RW Mutex"); | 
|---|
| 672 | TestReaderWriterLock<tbb::speculative_spin_rw_mutex>( "Spin RW Mutex/speculative"); | 
|---|
| 673 |  | 
|---|
| 674 | TestRecursiveMutex<tbb::recursive_mutex>( "Recursive Mutex"); | 
|---|
| 675 |  | 
|---|
| 676 | // Test ISO C++11 interface | 
|---|
| 677 | TestISO<tbb::spin_mutex>( "ISO Spin Mutex"); | 
|---|
| 678 | TestISO<tbb::mutex>( "ISO Mutex"); | 
|---|
| 679 | TestISO<tbb::spin_rw_mutex>( "ISO Spin RW Mutex"); | 
|---|
| 680 | TestISO<tbb::recursive_mutex>( "ISO Recursive Mutex"); | 
|---|
| 681 | TestISO<tbb::critical_section>( "ISO Critical Section"); | 
|---|
| 682 | TestTryAcquire_OneThreadISO<tbb::spin_mutex>( "ISO Spin Mutex"); | 
|---|
| 683 | #if USE_PTHREAD | 
|---|
| 684 | // under ifdef because on Windows tbb::mutex is reenterable and the test will fail | 
|---|
| 685 | TestTryAcquire_OneThreadISO<tbb::mutex>( "ISO Mutex"); | 
|---|
| 686 | #endif /* USE_PTHREAD */ | 
|---|
| 687 | TestTryAcquire_OneThreadISO<tbb::spin_rw_mutex>( "ISO Spin RW Mutex"); | 
|---|
| 688 | TestTryAcquire_OneThreadISO<tbb::recursive_mutex>( "ISO Recursive Mutex"); | 
|---|
| 689 | TestTryAcquire_OneThreadISO<tbb::critical_section>( "ISO Critical Section"); | 
|---|
| 690 | TestReaderWriterLockISO<tbb::spin_rw_mutex>( "ISO Spin RW Mutex"); | 
|---|
| 691 | TestRecursiveMutexISO<tbb::recursive_mutex>( "ISO Recursive Mutex"); | 
|---|
| 692 |  | 
|---|
| 693 | TestRWStateMultipleChange<tbb::spin_rw_mutex>(); | 
|---|
| 694 | TestRWStateMultipleChange<tbb::speculative_spin_rw_mutex>(); | 
|---|
| 695 | TestRWStateMultipleChange<tbb::queuing_rw_mutex>(); | 
|---|
| 696 | } | 
|---|
| 697 | } | 
|---|
| 698 |  | 
|---|
| 699 | #if __TBB_TSX_TESTING_ENABLED_FOR_THIS_COMPILER | 
|---|
| 700 | // additional test for speculative mutexes to see if we actually attempt lock elisions | 
|---|
| 701 | if( have_TSX() ) { | 
|---|
| 702 | tbb::task_scheduler_init init( MaxThread ); | 
|---|
| 703 | TestTransaction<tbb::speculative_spin_mutex>( "Spin Mutex/speculative"); | 
|---|
| 704 | TestTransaction<tbb::speculative_spin_rw_mutex>( "Spin RW Mutex/speculative"); | 
|---|
| 705 | } | 
|---|
| 706 | else { | 
|---|
| 707 | REMARK( "Hardware transactions not supported\n"); | 
|---|
| 708 | } | 
|---|
| 709 | #endif | 
|---|
| 710 | return Harness::Done; | 
|---|
| 711 | } | 
|---|
| 712 |  | 
|---|