我正在尝试写入命名管道并读回相同的内容。考虑以下代码片段（为简洁起见，错误处理被剥离）：
const char * pipeName = "\\\\.\\pipe\\pipe";
const char * buffWrite = "SOME TEXT";
unsigned buffLength = strlen(buffWrite);
char buffRead[1024];
DWORD nWritten, nRead;
HANDLE hPipe = CreateNamedPipe(pipeName,
PIPE_ACCESS_DUPLEX, PIPE_TYPE_BYTE | PIPE_READMODE_BYTE | PIPE_WAIT, PIPE_UNLIMITED_INSTANCES, 1024, 1024, 0, 0);
HANDLE hFile = CreateFile(pipeName, GENERIC_WRITE, 0, 0, OPEN_EXISTING, 0, 0);
WriteFile(hFile, buffWrite, buffLength, &nWritten, 0);
CloseHandle(hFile);
//the next line fails with >>All pipe instances are busy.<<
hFile = CreateFile(pipeName, GENERIC_READ, 0, 0, OPEN_EXISTING, 0, 0);
ReadFile(hFile, buffRead, buffLength, &nRead, 0);
...
但是，当我尝试重新打开管道以读取 …