1 /* ************************************************************************ 2 * Copyright 2014 Advanced Micro Devices, Inc. 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 * ************************************************************************/ 16 17 #include <stdio.h> 18 #include <fstream> 19 #include <iostream> 20 #include <ios> 21 22 #include <../functor/include/functor.h> 23 #include <clblas-internal.h> 24 25 #include <vector> 26 #include <set> 27 28 29 30 // ================================================== 31 // == clblasFunctorCacheBase 32 // ================================================== 33 34 typedef std::set<clblasFunctorCacheBase*> clblasFunctorCacheSet ; 35 36 // Provide the set of all existing functor cache 37 // 38 // Remark: Since the set is typically populated by the constructors 39 // of global objects, we use the "construct on first use" 40 // idiom, to avoid the infamous "static initialization order fiasco". 41 // See for example http://www.parashift.com/c++-faq/static-init-order.html 42 // 43 // Remark: The current implementation is not thread-safe but that should 44 // be fine since the cache is supposed to be populated at startup 45 // (assuming that all functor caches are global objects) and 46 // getFunctorCacheSet()47static clblasFunctorCacheSet & getFunctorCacheSet() 48 { 49 static clblasFunctorCacheSet * all = new clblasFunctorCacheSet ; 50 return * all ; 51 } 52 53 // 54 // This function is supposed to be called from clblasTearDown to empty all caches 55 // cleanFunctorCaches(void)56extern "C" void cleanFunctorCaches(void) 57 { 58 // Ask each registered cache to clean itself. 59 clblasFunctorCacheSet & all = getFunctorCacheSet() ; 60 for (clblasFunctorCacheSet::iterator it= all.begin(); it!=all.end(); ++it) 61 { 62 clblasFunctorCacheBase * cache = *it ; 63 cache->discardAll() ; 64 } 65 } 66 clblasFunctorCacheBase()67clblasFunctorCacheBase::clblasFunctorCacheBase() 68 { 69 // if ( _cleanFunctorCachesHook == 0 ) 70 // _cleanFunctorCachesHook = cleanFunctorCaches ; // Install the hook to call cleanFunctorCaches 71 72 clblasFunctorCacheSet & all = getFunctorCacheSet() ; 73 all.insert(this) ; 74 } 75 ~clblasFunctorCacheBase()76clblasFunctorCacheBase::~clblasFunctorCacheBase() 77 { 78 clblasFunctorCacheSet & all = getFunctorCacheSet() ; 79 all.erase(this) ; 80 } 81