C winapi 處理序間通訊(Named Pipe)。

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要求實現：

• 用具名管道的相關知識及函數，分別編寫伺服器處理序和用戶端進程程式。
• 要求伺服器處理序和用戶端進程程式能夠通過互相傳送資料。
• 當伺服器處理序和用戶端進程中的任何一端輸入“end”時，結束會話。

寫了半天，發現如果只用單個管道的話，非常的困難，進程總是卡住，感覺痛點在於伺服器處理序怎麼主動地像用戶端進程發送資訊，研究了一天還是未解決這個問題。。。

最後是寫了個雙管道的(每個進程都有各自的伺服器和用戶端)來實現的，雖然和要求可能有所出入。。。

#include <Windows.h>#include <stdio.h>HANDLE hPipe, hInput;char writeBuffer[256];char readBuffer[256];DWORD cbRead = 100;BOOL isSelf = false;BOOL fConnected = false;BOOL isExit = false;DWORD WINAPI mThreadFunc(LPVOID lpParam){    while (true)    {        gets_s(writeBuffer, 256);        if (WaitNamedPipe("\\\\.\\pipe\\test2", 1000))        {            CallNamedPipe(                "\\\\.\\pipe\\test2",                 writeBuffer,                 256,                 readBuffer,                 256,                 &cbRead,                 20000);            printf("%s\n", readBuffer);            if (strcmp(writeBuffer, "end") == 0)            {                exit(-1);            }        }        else        {            if (GetLastError() == ERROR_FILE_NOT_FOUND)            {                printf("錯誤：進程二沒在運行！\n");            }        }    }}int main(){    printf("我是進程一。\n\n");    hPipe = CreateNamedPipe(        "\\\\.\\pipe\\test1",        PIPE_ACCESS_DUPLEX,        PIPE_TYPE_MESSAGE | PIPE_READMODE_MESSAGE | PIPE_WAIT,        3,        512,        512,        0,        NULL);    hInput = CreateThread(NULL, 0, mThreadFunc, NULL, 0, NULL);    CloseHandle(hInput);    while (!isExit)    {        fConnected = ConnectNamedPipe(hPipe, NULL) ?            TRUE : (GetLastError() == ERROR_PIPE_CONNECTED);        if (fConnected)        {            ReadFile(hPipe, readBuffer, 256, 0, NULL);                   printf("進程二: %s\n", readBuffer);            WriteFile(hPipe, "進程一: 我收到了！", 256, 0, NULL);            DisconnectNamedPipe(hPipe);            if (strcmp(readBuffer, "end") == 0)            {                isExit = true;            }        }    }    CloseHandle(hPipe);    return 0;}

1.c

#include <Windows.h>#include <stdio.h>HANDLE hPipe, hInput;char writeBuffer[256];char readBuffer[256];DWORD cbRead = 100;BOOL isSelf = false;BOOL fConnected = false;BOOL isExit = false;DWORD WINAPI mThreadFunc(LPVOID lpParam){    while (true)    {        gets_s(writeBuffer, 256);        if (WaitNamedPipe("\\\\.\\pipe\\test1", 1000))        {            CallNamedPipe(                "\\\\.\\pipe\\test1",                writeBuffer,                256,                readBuffer,                256,                &cbRead,                20000);            printf("%s\n", readBuffer);            if (strcmp(writeBuffer, "end") == 0)            {                exit(-1);            }        }        else        {            if (GetLastError() == ERROR_FILE_NOT_FOUND)            {                printf("錯誤：進程一沒在運行！");            }        }    }}int main(){    printf("我是進程二。\n\n");    hPipe = CreateNamedPipe(        "\\\\.\\pipe\\test2",        PIPE_ACCESS_DUPLEX,        PIPE_TYPE_MESSAGE | PIPE_READMODE_MESSAGE | PIPE_WAIT,        3,        512,        512,        0,        NULL);    hInput = CreateThread(NULL, 0, mThreadFunc, NULL, 0, NULL);    CloseHandle(hInput);    while (!isExit)    {        fConnected = ConnectNamedPipe(hPipe, NULL) ?            TRUE : (GetLastError() == ERROR_PIPE_CONNECTED);        if (fConnected)        {            ReadFile(hPipe, readBuffer, 256, 0, NULL);            printf("進程一: %s\n", readBuffer);            WriteFile(hPipe, "進程二: 我收到了！", 256, 0, NULL);            DisconnectNamedPipe(hPipe);            if (strcmp(readBuffer, "end") == 0)            {                isExit = true;            }        }    }    CloseHandle(hPipe);    return 0;}

2.c

 

C winapi 處理序間通訊(Named Pipe)。