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/*
* ucserial.cc - Serialization of usecode objects
*
* Copyright (C) 2002-2022 The Exult Team
*
* 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.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include "ucserial.h"
#include "databuf.h"
#include "debugmsg.h"
#include "servemsg.h"
#include "useval.h"
/*
* Read/write out data common to all objects.
*
* Output: 1 if successful, else 0.
*/
template <class Serial>
void Stack_frame_io(
Serial& io, int& functionid, int& ip, int& call_chain, int& call_depth,
int& eventid, int& caller_item, int& num_args, int& num_vars) {
auto c = static_cast<unsigned char>(Exult_server::dbg_stackframe);
io << c << functionid << ip << call_chain << call_depth << eventid
<< caller_item << num_args << num_vars;
// locals!
}
int Stack_frame_out(
int fd, // Socket.
int functionid, int ip, int call_chain, int call_depth, int eventid,
int caller_item, int num_args, int num_vars, Usecode_value* locals) {
static unsigned char buf[Exult_server::maxlength];
unsigned char* ptr = &buf[0];
Serial_out io(ptr);
Stack_frame_io<Serial_out>(
io, functionid, ip, call_chain, call_depth, eventid, caller_item,
num_args, num_vars);
OBufferDataSpan ds(buf, Exult_server::maxlength);
ds.seek(ptr - buf);
for (int i = 0; i < num_args + num_vars; i++) {
(void)locals[i].save(&ds);
}
return Exult_server::Send_data(
fd, Exult_server::usecode_debugging, buf, ds.getPos());
// locals!
}
bool Stack_frame_in(
const unsigned char* data, // Data that was read.
int datalen, // Length of data.
int& functionid, int& ip, int& call_chain, int& call_depth,
int& eventid, int& caller_item, int& num_args, int& num_vars,
Usecode_value*& locals) {
const unsigned char* ptr = data;
Serial_in io(ptr);
Stack_frame_io<Serial_in>(
io, functionid, ip, call_chain, call_depth, eventid, caller_item,
num_args, num_vars);
IBufferDataView ds(data, datalen);
ds.seek(ptr - data);
locals = new Usecode_value[num_args + num_vars];
for (int i = 0; i < num_args + num_vars; i++) {
locals[i].restore(&ds);
}
return ds.getPos() == static_cast<unsigned>(datalen);
// locals!
}
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