1 /*
  2  * Copyright (c) 2024, Oracle and/or its affiliates. All rights reserved.
  3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  4  *
  5  * This code is free software; you can redistribute it and/or modify it
  6  * under the terms of the GNU General Public License version 2 only, as
  7  * published by the Free Software Foundation.  Oracle designates this
  8  * particular file as subject to the "Classpath" exception as provided
  9  * by Oracle in the LICENSE file that accompanied this code.
 10  *
 11  * This code is distributed in the hope that it will be useful, but WITHOUT
 12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 14  * version 2 for more details (a copy is included in the LICENSE file that
 15  * accompanied this code).
 16  *
 17  * You should have received a copy of the GNU General Public License version
 18  * 2 along with this work; if not, write to the Free Software Foundation,
 19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 20  *
 21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
 22  * or visit www.oracle.com if you need additional information or have any
 23  * questions.
 24  */
 25 #include "shared.h"
 26 
 27 class MockBackend final : public Backend {
 28 public:
 29 
 30 
 31     class MockProgram final : public Backend::CompilationUnit {
 32         class MockKernel final : public Backend::CompilationUnit::Kernel {
 33         public:
 34             MockKernel(Backend::CompilationUnit *compilationUnit, char *name)
 35                     : Backend::CompilationUnit::Kernel(compilationUnit, name) {
 36             }
 37             ~MockKernel() override = default;
 38             bool setArg(KernelArg *arg, Buffer *buffer) override{
 39                 return false ;
 40             }
 41             bool setArg(KernelArg *arg) override{
 42                 return false ;
 43             }
 44         };
 45 
 46     public:
 47         MockProgram(Backend *backend, char *src, char *log, bool ok )
 48                 : Backend::CompilationUnit(backend, src,log, ok) {
 49         }
 50 
 51         ~MockProgram() override = default;
 52 
 53         Kernel* getKernel(int nameLen, char *name) override {
 54             return new MockKernel(this, name);
 55         }
 56     };
 57     class MockQueue final : public Backend::Queue{
 58     public:
 59         void wait()override{};
 60         void release()override{};
 61         void computeStart()override{};
 62         void computeEnd()override{};
 63         void dispatch(KernelContext *kernelContext, Backend::CompilationUnit::Kernel *kernel) override{
 64             std::cout << "mock dispatch() " << std::endl;
 65             size_t dims = 1;
 66             if (backend->config->trace | backend->config->traceEnqueues){
 67                 std::cout << "enqueued kernel dispatch \""<< kernel->name <<"\" globalSize=" << kernelContext->maxX << std::endl;
 68             }
 69 
 70         }
 71         void copyToDevice(Buffer *buffer) override{}
 72         void copyFromDevice(Buffer *buffer) override{};
 73         explicit MockQueue(Backend *backend):Queue(backend){}
 74         ~MockQueue() override =default;
 75     };
 76 public:
 77 
 78     explicit MockBackend(int configBits): Backend(new Config(configBits), new MockQueue(this)) {}
 79 
 80     ~MockBackend() override = default;
 81     Buffer * getOrCreateBuffer(BufferState *bufferState) override{
 82         Buffer *buffer = nullptr;
 83 
 84         /* if (bufferState->vendorPtr == 0L || bufferState->state == BufferState::NEW_STATE){
 85               openclBuffer = new OpenCLBuffer(this,  bufferState);
 86               if (openclConfig.trace){
 87                   std::cout << "We allocated arg buffer "<<std::endl;
 88               }
 89           }else{
 90               if (openclConfig.trace){
 91                   std::cout << "Were reusing  buffer  buffer "<<std::endl;
 92               }
 93               openclBuffer=  static_cast<OpenCLBuffer*>(bufferState->vendorPtr);
 94           }*/
 95         return buffer;
 96     }
 97     bool getBufferFromDeviceIfDirty(void *memorySegment, long memorySegmentLength) override {
 98         std::cout << "attempting  to get buffer from Mockbackend "<<std::endl;
 99         return false;
100     }
101 
102 
103     void info() override {
104         std::cout << "mock info()" << std::endl;
105     }
106 
107     void computeStart() override{
108         std::cout << "mock compute start()" << std::endl;
109     }
110 
111     void computeEnd() override{
112         std::cout << "mock compute start()" << std::endl;
113     }
114 
115     CompilationUnit *compile(int len, char *source) override{
116         std::cout << "mock compileProgram()" << std::endl;
117         size_t srcLen = ::strlen(source);
118         char *src = new char[srcLen + 1];
119         ::strncpy(src, source, srcLen);
120         src[srcLen] = '\0';
121         std::cout << "native compiling " << src << std::endl;
122         auto *mockProgram = new MockProgram(this,src, nullptr, false);
123         return mockProgram;
124     }
125 };
126 
127 extern "C" long getBackend(int mode) {
128     long backendHandle = reinterpret_cast<long>(new MockBackend(mode));
129      return backendHandle;
130 }