mirror of
https://github.com/NVIDIA/cuda-samples.git
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121 lines
3.8 KiB
C++
121 lines
3.8 KiB
C++
/* Copyright (c) 2022, NVIDIA CORPORATION. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* * Neither the name of NVIDIA CORPORATION nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
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* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef HELPER_MULTIPROCESS_H
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#define HELPER_MULTIPROCESS_H
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#if defined(WIN32) || defined(_WIN32) || defined(WIN64) || defined(_WIN64)
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#ifndef WIN32_LEAN_AND_MEAN
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#define WIN32_LEAN_AND_MEAN
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#endif
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#include <windows.h>
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#include <iostream>
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#include <stdio.h>
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#include <tchar.h>
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#include <strsafe.h>
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#include <sddl.h>
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#include <aclapi.h>
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#include <winternl.h>
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#else
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#include <stdio.h>
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#include <fcntl.h>
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#include <sys/mman.h>
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#include <unistd.h>
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#include <errno.h>
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#include <sys/wait.h>
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#include <sys/types.h>
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#include <sys/socket.h>
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#include <memory.h>
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#include <sys/un.h>
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#endif
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#include <vector>
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typedef struct sharedMemoryInfo_st {
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void *addr;
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size_t size;
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#if defined(WIN32) || defined(_WIN32) || defined(WIN64) || defined(_WIN64)
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HANDLE shmHandle;
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#else
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int shmFd;
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#endif
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} sharedMemoryInfo;
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int sharedMemoryCreate(const char *name, size_t sz, sharedMemoryInfo *info);
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int sharedMemoryOpen(const char *name, size_t sz, sharedMemoryInfo *info);
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void sharedMemoryClose(sharedMemoryInfo *info);
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#if defined(WIN32) || defined(_WIN32) || defined(WIN64) || defined(_WIN64)
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typedef PROCESS_INFORMATION Process;
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#else
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typedef pid_t Process;
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#endif
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int spawnProcess(Process *process, const char *app, char * const *args);
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int waitProcess(Process *process);
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#define checkIpcErrors(ipcFuncResult) \
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if (ipcFuncResult == -1) { fprintf(stderr, "Failure at %u %s\n", __LINE__, __FILE__); exit(EXIT_FAILURE); }
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#if defined(__linux__)
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struct ipcHandle_st {
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int socket;
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char *socketName;
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};
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typedef int ShareableHandle;
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#elif defined(WIN32) || defined(_WIN32) || defined(WIN64) || defined(_WIN64)
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struct ipcHandle_st {
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std::vector<HANDLE> hMailslot; // 1 Handle in case of child and `num children` Handles for parent.
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};
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typedef HANDLE ShareableHandle;
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#endif
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typedef struct ipcHandle_st ipcHandle;
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int
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ipcCreateSocket(ipcHandle *&handle, const char *name, const std::vector<Process>& processes);
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int
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ipcOpenSocket(ipcHandle *&handle);
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int
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ipcCloseSocket(ipcHandle *handle);
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int
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ipcRecvShareableHandles(ipcHandle *handle, std::vector<ShareableHandle>& shareableHandles);
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int
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ipcSendShareableHandles(ipcHandle *handle, const std::vector<ShareableHandle>& shareableHandles, const std::vector<Process>& processes);
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int
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ipcCloseShareableHandle(ShareableHandle shHandle);
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#endif // HELPER_MULTIPROCESS_H
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