进程间通信之邮件槽

来源：互联网发布：巴特尔在nba数据编辑：程序博客网时间：2024/06/06 03:27

recv:

#include <windows.h>#include <iostream>int main(){HANDLE Mailslot;char buffer[256];DWORD NumberOfBytesRead;// 创建邮件槽Mailslot = CreateMailslot("\\\\.\\Mailslot\\Myslot",                       0,                      MAILSLOT_WAIT_FOREVER,                       NULL);if (INVALID_HANDLE_VALUE == Mailslot){printf("Failed to create a mailslot %d/n", GetLastError());std::cin.get();return -1;}std::cout << "等待接收数据..." << std::endl;// 从邮件槽上接收数据while (0 != ReadFile(Mailslot, buffer, 256, &NumberOfBytesRead, NULL)){buffer[NumberOfBytesRead] = '\0';std::cout << "接收的数据大小为：" << NumberOfBytesRead << std::endl;std::cout << "接收的数据内容为：" << buffer << std::endl;}// 关闭邮件槽CloseHandle(Mailslot);std::cout << "按任意键退出." << std::endl;std::cin.get();return 0;}

send:

#include <windows.h>#include <stdio.h>int main(int argc, char *argv[]){HANDLE Mailslot;DWORD BytesWritten;CHAR ServerName[256] = {"\\\\.\\Mailslot\\Myslot"};Mailslot = CreateFile(ServerName, GENERIC_WRITE,FILE_SHARE_READ, NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL);if (INVALID_HANDLE_VALUE == Mailslot){printf("打开命名邮件槽失败，原因： %d\r\n", GetLastError());system("pause");return -1;}if (0 == WriteFile(Mailslot, "This is a test", 14, &BytesWritten, NULL)){printf("向邮件槽发送数据失败，原因： %d\r\n", GetLastError());system("pause");return -1;}printf("Wrote %d bytedsr\r\n", BytesWritten);CloseHandle(Mailslot);system("pause");return 0;}

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