使用此处的客户端和服务器示例:http://www.winsocketdotnetworkprogramming.com/winsock2programming/winsock2advancedmailslot14.html使用VS2008编译它们,运行服务器然后“客户端Myslot”我不断收到“WriteFail失败,错误53”。有人有主意吗?还欢迎链接到其他Mailslot示例,谢谢。
服务器:
// Server sample
#include <windows.h>
#include <stdio.h>
void main(void)
{
HANDLE Mailslot;
char buffer[256];
DWORD NumberOfBytesRead;
// Create the mailslot
if ((Mailslot = CreateMailslot("\\\\.\\Mailslot\\Myslot", 0, MAILSLOT_WAIT_FOREVER, NULL)) == INVALID_HANDLE_VALUE)
{
printf("Failed to create a mailslot %d\n", GetLastError());
return;
}
// Read data from the mailslot forever!
while(ReadFile(Mailslot, buffer, 256, &NumberOfBytesRead, NULL) != 0)
{
printf("%.*s\n", NumberOfBytesRead, buffer);
}
}
客户端:
// Client sample
#include <windows.h>
#include <stdio.h>
void main(int argc, char *argv[])
{
HANDLE Mailslot;
DWORD BytesWritten;
CHAR ServerName[256];
// Accept a command line argument for the server to send a message to
if (argc < 2)
{
printf("Usage: client <server name>\n");
return;
}
sprintf(ServerName, "\\\\%s\\Mailslot\\Myslot", argv[1]);
if ((Mailslot = CreateFile(ServerName, GENERIC_WRITE,
FILE_SHARE_READ, NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL)) == INVALID_HANDLE_VALUE)
{
printf("CreateFile failed with error %d\n", GetLastError());
return;
}
if (WriteFile(Mailslot, "This is a test", 14, &BytesWritten, NULL) == 0)
{
printf("WriteFile failed with error %d\n", GetLastError());
return;
}
printf("Wrote %d bytes\n", BytesWritten);
CloseHandle(Mailslot);
}
答案 0 :(得分:1)
错误53是ERROR_BAD_NETPATH,“找不到网络路径”。显然,您使用错误的服务器名称作为邮件槽。如果服务器与客户端在同一台计算机上运行,请使用\\.\mailslot\blah
。并且不要忘记转义字符串中的反斜杠:"\\\\.\\mailslot\\blah"
。
答案 1 :(得分:1)
我将完全复制的代码复制到两个文件中,用VS2008编译它们并且运行完美。如果您的客户端程序编译为client.exe,则键入以下命令:
client .
或
client <computername>
其中计算机名称是没有域名的PC名称。您可以调用API GetComputerName来检索名称。