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/***************************************************************************
* *
* copyright (C) 2004 by Michael Buesch *
* email: mbuesch@freenet.de *
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License version 2 *
* as published by the Free Software Foundation. *
* *
***************************************************************************/
/***************************************************************************
* copyright (C) 2004 by Ulf Schenk
* This file is originaly based on version 1.0.1 of pwmanager
* and was modified to run on embedded devices that run microkde
*
* $Id$
**************************************************************************/
#include "ipc.h"
#include "pwmexception.h"
#include <qsocketnotifier.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <stdio.h>
#define END_OF_LINE '\n'
#define INIT_LINEBUF_LEN 64 /* byte */
Ipc::Ipc()
: stream (0)
, notifier (0)
, rdBuf (0)
{
#ifndef PWM_EMBEDDED
if (socketpair(AF_LOCAL, SOCK_STREAM, 0, sock)) {
throw PwMException(PwMException::EX_GENERIC,
"Ipc: socketpair() failed");
}
rdBufSize = INIT_LINEBUF_LEN;
rdBuf = static_cast<char *>(malloc(rdBufSize));
if (!rdBuf) {
close(sock[0]);
close(sock[1]);
throw PwMException(PwMException::EX_GENERIC,
"Ipc: OOM");
}
stream = fdopen(sock[0], "r");
if (!stream) {
close(sock[0]);
close(sock[1]);
free(rdBuf);
throw PwMException(PwMException::EX_GENERIC,
"Ipc: fdopen() failed");
}
#else
if (socketpair(AF_LOCAL, SOCK_STREAM, 0, sock)) {
qDebug("Ipc: socketpair() failed");
}
rdBufSize = INIT_LINEBUF_LEN;
rdBuf = (char *)(malloc(rdBufSize));
if (!rdBuf) {
close(sock[0]);
close(sock[1]);
qDebug("Ipc: OOM");
}
stream = fdopen(sock[0], "r");
if (!stream) {
close(sock[0]);
close(sock[1]);
free(rdBuf);
qDebug("Ipc: fdopen() failed");
}
#endif
notifier = new QSocketNotifier(sock[0], QSocketNotifier::Read);
connect(notifier, SIGNAL(activated(int)),
this, SLOT(receiveData(int)));
host = true;
}
Ipc::Ipc(const Ipc *ipc)
: stream (0)
, notifier (0)
, rdBuf (0)
{
#ifndef PWM_EMBEDDED
rdBufSize = INIT_LINEBUF_LEN;
rdBuf = static_cast<char *>(malloc(rdBufSize));
if (!rdBuf) {
throw PwMException(PwMException::EX_GENERIC,
"Ipc: OOM");
}
sock[0] = ipc->sock[1];
sock[1] = ipc->sock[0];
stream = fdopen(sock[0], "r");
if (!stream) {
free(rdBuf);
throw PwMException(PwMException::EX_GENERIC,
"Ipc: fdopen() failed");
}
#else
rdBufSize = INIT_LINEBUF_LEN;
rdBuf = (char *)(malloc(rdBufSize));
if (!rdBuf) {
qDebug("Ipc: OOM");
}
sock[0] = ipc->sock[1];
sock[1] = ipc->sock[0];
stream = fdopen(sock[0], "r");
if (!stream) {
free(rdBuf);
qDebug("Ipc: fdopen() failed");
}
#endif
notifier = new QSocketNotifier(sock[0], QSocketNotifier::Read);
connect(notifier, SIGNAL(activated(int)),
this, SLOT(receiveData(int)));
host = false;
}
Ipc::~Ipc()
{
delete_ifnot_null(notifier);
if (rdBuf)
free(rdBuf);
if (stream)
fclose(stream);
if (host) {
close(sock[0]);
close(sock[1]);
}
}
void Ipc::receiveData(int s)
{
ssize_t rd;
PWM_ASSERT(s == sock[0]);
PARAM_UNUSED(s);
rd = getline(&rdBuf, &rdBufSize, stream);
if (likely(rd > 0)) {
emit lineAvailable(rdBuf, rd);
}
}
#ifndef PWM_EMBEDDED
#include "ipc.moc"
#endif
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