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//////////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////////
//
// copyright : (C) 2014 Eran Ifrah
// file name : named_pipe_client.cpp
//
// -------------------------------------------------------------------------
// A
// _____ _ _ _ _
// / __ \ | | | | (_) |
// | / \/ ___ __| | ___| | _| |_ ___
// | | / _ \ / _ |/ _ \ | | | __/ _ )
// | \__/\ (_) | (_| | __/ |___| | || __/
// \____/\___/ \__,_|\___\_____/_|\__\___|
//
// F i l e
//
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation; either version 2 of the License, or
// (at your option) any later version.
//
//////////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////////
#include "named_pipe_client.h"
#ifndef __WXMSW__
# include <sys/types.h>
# include <sys/socket.h>
# include <sys/un.h>
# include <stdio.h>
#endif
clNamedPipeClient::clNamedPipeClient(const char* path)
: clNamedPipe(path)
{
}
clNamedPipeClient::~clNamedPipeClient(void)
{
disconnect();
}
bool clNamedPipeClient::connect(long )
{
#ifdef __WXMSW__
this->setLastError(ZNP_OK);
while (1) {
_pipeHandle = CreateFileA(
getPipePath(), // pipe name
GENERIC_READ | // read and write access
GENERIC_WRITE,
0, // no sharing
NULL, // default security attributes
OPEN_EXISTING, // opens existing pipe
FILE_FLAG_OVERLAPPED, // default attributes
NULL); // no template file
if (_pipeHandle != INVALID_PIPE_HANDLE)
return true;
// Exit if an error other than ERROR_PIPE_BUSY occurs.
DWORD err = GetLastError();
if (err != ERROR_PIPE_BUSY) {
this->setLastError(ZNP_CONNECT_ERROR);
return false;
}
// All pipe instances are busy, so wait for 20 seconds.
if (!WaitNamedPipeA(getPipePath(), 20000)) {
DWORD err = GetLastError();
if (err == WAIT_TIMEOUT) {
this->setLastError(ZNP_TIMEOUT);
} else {
this->setLastError(ZNP_CONNECT_WAIT_ERROR);
}
return false;
}
}
#else // MSW
struct sockaddr_un server;
_pipeHandle = socket(AF_UNIX, SOCK_STREAM, 0);
if (_pipeHandle < 0) {
perror("ERROR");
return false;
}
server.sun_family = AF_UNIX;
strcpy(server.sun_path, getPipePath());
if (::connect(_pipeHandle, (struct sockaddr *) &server, sizeof(struct sockaddr_un)) < 0) {
perror("ERROR");
disconnect();
return false;
}
return true;
#endif
}
bool clNamedPipeClient::isConnected()
{
return (_pipeHandle != INVALID_PIPE_HANDLE);
}
void clNamedPipeClient::disconnect()
{
#ifdef __WXMSW__
this->setLastError(ZNP_OK);
if (_pipeHandle != INVALID_PIPE_HANDLE) {
CloseHandle(_pipeHandle);
_pipeHandle = INVALID_PIPE_HANDLE;
}
#else
if ( _pipeHandle != INVALID_PIPE_HANDLE ) {
close(_pipeHandle);
shutdown(_pipeHandle, SHUT_RDWR);
_pipeHandle = INVALID_PIPE_HANDLE;
}
#endif
}
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