1 // generic.hxx -- generic protocol class
3 // Written by Curtis Olson, started November 1999.
5 // Copyright (C) 1999 Curtis L. Olson - http://www.flightgear.org/~curt
7 // This program is free software; you can redistribute it and/or
8 // modify it under the terms of the GNU General Public License as
9 // published by the Free Software Foundation; either version 2 of the
10 // License, or (at your option) any later version.
12 // This program is distributed in the hope that it will be useful, but
13 // WITHOUT ANY WARRANTY; without even the implied warranty of
14 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 // General Public License for more details.
17 // You should have received a copy of the GNU General Public License
18 // along with this program; if not, write to the Free Software
19 // Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
24 #ifndef _FG_SERIAL_HXX
25 #define _FG_SERIAL_HXX
28 #include <simgear/compiler.h>
32 #include "protocol.hxx"
36 class FGGeneric : public FGProtocol {
40 FGGeneric(vector<string>);
44 bool parse_message_len(int length);
46 // open hailing frequencies
51 // process work for this port
57 void setExitOnError(bool val) { exitOnError = val; }
58 bool getExitOnError() { return exitOnError; }
59 bool getInitOk(void) { return initOk; }
62 enum e_type { FG_BOOL=0, FG_INT, FG_FLOAT, FG_DOUBLE, FG_STRING, FG_FIXED, FG_BYTE, FG_WORD };
73 SGPropertyNode_ptr prop;
82 char buf[ FG_MAX_MSG_SIZE ];
87 string line_separator;
88 string var_sep_string;
89 string line_sep_string;
90 vector<_serial_prot> _out_message;
91 vector<_serial_prot> _in_message;
94 enum {FOOTER_NONE, FOOTER_LENGTH, FOOTER_MAGIC} binary_footer_type;
95 int binary_footer_value;
96 int binary_record_length;
97 enum {BYTE_ORDER_NEEDS_CONVERSION, BYTE_ORDER_MATCHES_NETWORK_ORDER} binary_byte_order;
99 bool gen_message_ascii();
100 bool gen_message_binary();
101 bool parse_message_ascii(int length);
102 bool parse_message_binary(int length);
103 bool read_config(SGPropertyNode *root, vector<_serial_prot> &msg);
107 class FGProtocolWrapper * wrapper;
110 static void updateValue(_serial_prot& prot, const T& val)
112 T new_val = (prot.rel ? getValue<T>(prot.prop) : 0)
116 if( prot.max > prot.min )
119 new_val = SGMisc<double>::normalizePeriodic(prot.min, prot.max, new_val);
121 new_val = SGMisc<T>::clip(new_val, prot.min, prot.max);
124 setValue(prot.prop, new_val);
127 // Special handling for bool (relative change = toggle, no min/max, no wrap)
128 static void updateValue(_serial_prot& prot, bool val);
132 #endif // _FG_SERIAL_HXX