request.cc
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/*
* "Software pw3270, desenvolvido com base nos códigos fontes do WC3270 e X3270
* (Paul Mattes Paul.Mattes@usa.net), de emulação de terminal 3270 para acesso a
* aplicativos mainframe. Registro no INPI sob o nome G3270.
*
* Copyright (C) <2008> <Banco do Brasil S.A.>
*
* Este programa é software livre. Você pode redistribuí-lo e/ou modificá-lo sob
* os termos da GPL v.2 - Licença Pública Geral GNU, conforme publicado pela
* Free Software Foundation.
*
* Este programa é distribuído na expectativa de ser útil, mas SEM QUALQUER
* GARANTIA; sem mesmo a garantia implícita de COMERCIALIZAÇÃO ou de ADEQUAÇÃO
* A QUALQUER PROPÓSITO EM PARTICULAR. Consulte a Licença Pública Geral GNU para
* obter mais detalhes.
*
* Você deve ter recebido uma cópia da Licença Pública Geral GNU junto com este
* programa; se não, escreva para a Free Software Foundation, Inc., 51 Franklin
* St, Fifth Floor, Boston, MA 02110-1301 USA
*
* Este programa está nomeado como - e possui - linhas de código.
*
* Contatos:
*
* perry.werneck@gmail.com (Alexandre Perry de Souza Werneck)
* erico.mendonca@gmail.com (Erico Mascarenhas Mendonça)
*
*/
/**
* @file src/os/linux/request.cc
*
* @brief Implements linux request methods for remote session.
*
* @author perry.werneck@gmail.com
*
*/
#include <ipc-client-internals.h>
using std::string;
/*---[ Implement ]----------------------------------------------------------------------------------*/
namespace TN3270 {
IPC::Request::~Request() {
if(msg.out) {
dbus_message_unref(msg.out);
}
if(msg.in) {
dbus_message_unref(msg.in);
}
}
IPC::Request & IPC::Request::call() {
if(msg.in) {
dbus_message_unref(msg.in);
msg.in = nullptr;
}
DBusError error;
dbus_error_init(&error);
this->msg.in = dbus_connection_send_with_reply_and_block(this->conn,this->msg.out,10000,&error);
if(!this->msg.in) {
string message = error.message;
dbus_error_free(&error);
throw std::runtime_error(message.c_str());
}
dbus_message_iter_init(msg.in, &msg.iter);
debug(__FUNCTION__," got a valid response");
return *this;
}
IPC::Request & IPC::Request::push(const char *arg) {
dbus_message_append_args(this->msg.out,DBUS_TYPE_STRING,&arg,DBUS_TYPE_INVALID);
return *this;
}
IPC::Request & IPC::Request::push(const bool arg) {
dbus_message_append_args(this->msg.out,DBUS_TYPE_BOOLEAN,&arg,DBUS_TYPE_INVALID);
return *this;
}
IPC::Request & IPC::Request::push(const uint8_t arg) {
dbus_message_append_args(this->msg.out,DBUS_TYPE_BYTE,&arg,DBUS_TYPE_INVALID);
return *this;
}
IPC::Request & IPC::Request::push(const int32_t arg) {
dbus_message_append_args(this->msg.out,DBUS_TYPE_INT32,&arg,DBUS_TYPE_INVALID);
return *this;
}
IPC::Request & IPC::Request::push(const uint32_t arg) {
dbus_message_append_args(this->msg.out,DBUS_TYPE_UINT32,&arg,DBUS_TYPE_INVALID);
return *this;
}
IPC::Request & IPC::Request::pop(std::string &value) {
const char * str = "";
if(dbus_message_iter_get_arg_type(&msg.iter) == DBUS_TYPE_STRING) {
dbus_message_iter_get_basic(&msg.iter, &str);
} else if(dbus_message_iter_get_arg_type(&msg.iter) == DBUS_TYPE_VARIANT) {
DBusMessageIter sub;
int current_type;
dbus_message_iter_recurse(&msg.iter, &sub);
while ((current_type = dbus_message_iter_get_arg_type(&sub)) != DBUS_TYPE_INVALID) {
if (current_type == DBUS_TYPE_STRING) {
dbus_message_iter_get_basic(&sub, &str);
break;
}
dbus_message_iter_next(&sub);
}
} else {
debug("Argument type is ", ((char) dbus_message_iter_get_arg_type(&msg.iter)) );
throw std::runtime_error("Expected an string data type");
}
dbus_message_iter_next(&msg.iter);
value.assign(str);
debug(__FUNCTION__,"= \"",str,"\"");
return *this;
}
static int getUIntValue(DBusMessageIter &iter) {
if(dbus_message_iter_get_arg_type(&iter) == DBUS_TYPE_UINT32) {
dbus_uint32_t rc = 0;
dbus_message_iter_get_basic(&iter, &rc);
return (int) rc;
} else if(dbus_message_iter_get_arg_type(&iter) == DBUS_TYPE_UINT16) {
dbus_uint16_t rc = 0;
dbus_message_iter_get_basic(&iter, &rc);
return (int) rc;
} else if(dbus_message_iter_get_arg_type(&iter) == DBUS_TYPE_VARIANT) {
DBusMessageIter sub;
int current_type;
dbus_message_iter_recurse(&iter, &sub);
while ((current_type = dbus_message_iter_get_arg_type(&sub)) != DBUS_TYPE_INVALID) {
if (current_type == DBUS_TYPE_UINT32) {
dbus_uint32_t rc = 0;
dbus_message_iter_get_basic(&sub, &rc);
return (int) rc;
} else if (current_type == DBUS_TYPE_UINT16) {
dbus_uint16_t rc = 0;
dbus_message_iter_get_basic(&sub, &rc);
return (int) rc;
}
dbus_message_iter_next(&sub);
}
}
debug("Argument type is ", ((char) dbus_message_iter_get_arg_type(&iter)) );
throw std::runtime_error("Expected an integer data type");
}
static int getIntValue(DBusMessageIter &iter) {
if(dbus_message_iter_get_arg_type(&iter) == DBUS_TYPE_INT32) {
dbus_int32_t rc = 0;
dbus_message_iter_get_basic(&iter, &rc);
return (int) rc;
} else if(dbus_message_iter_get_arg_type(&iter) == DBUS_TYPE_INT16) {
dbus_int16_t rc = 0;
dbus_message_iter_get_basic(&iter, &rc);
return (int) rc;
} else if(dbus_message_iter_get_arg_type(&iter) == DBUS_TYPE_VARIANT) {
DBusMessageIter sub;
int current_type;
dbus_message_iter_recurse(&iter, &sub);
while ((current_type = dbus_message_iter_get_arg_type(&sub)) != DBUS_TYPE_INVALID) {
if (current_type == DBUS_TYPE_INT32) {
dbus_int32_t rc = 0;
dbus_message_iter_get_basic(&sub, &rc);
return (int) rc;
} else if (current_type == DBUS_TYPE_INT16) {
dbus_int16_t rc = 0;
dbus_message_iter_get_basic(&sub, &rc);
return (int) rc;
}
dbus_message_iter_next(&sub);
}
}
debug("Argument type is ", ((char) dbus_message_iter_get_arg_type(&iter)) );
throw std::runtime_error("Expected an integer data type");
}
IPC::Request & IPC::Request::Request::pop(int &value) {
value = getIntValue(msg.iter);
dbus_message_iter_next(&msg.iter);
debug(__FUNCTION__,"= \"",value,"\"");
return *this;
}
IPC::Request & IPC::Request::Request::pop(unsigned int &value) {
value = getUIntValue(msg.iter);
dbus_message_iter_next(&msg.iter);
debug(__FUNCTION__,"= \"",value,"\"");
return *this;
}
}