configToken = 6;
}
+ if (configToken >= tokens.size()) {
+ SG_LOG(SG_GENERAL, SG_ALERT,
+ "Not enough tokens passed for generic protocol");
+ return;
+ }
+
string config = tokens[ configToken ];
string file = config+".xml";
// generate the message
-bool FGGeneric::gen_message() {
+bool FGGeneric::gen_message_binary() {
string generic_sentence;
char tmp[255];
length = 0;
double val;
for (unsigned int i = 0; i < _out_message.size(); i++) {
- if (i > 0 && !binary_mode)
- generic_sentence += var_separator;
-
switch (_out_message[i].type) {
case FG_INT:
val = _out_message[i].offset +
_out_message[i].prop->getIntValue() * _out_message[i].factor;
- if (binary_mode) {
- if (binary_byte_order == BYTE_ORDER_MATCHES_NETWORK_ORDER) {
- *((int32_t*)&buf[length]) = (int32_t)val;
- } else {
- *((uint32_t*)&buf[length]) = sg_bswap_32((uint32_t)val);
- }
- length += sizeof(int32_t);
+
+ if (binary_byte_order == BYTE_ORDER_MATCHES_NETWORK_ORDER) {
+ *((int32_t*)&buf[length]) = (int32_t)val;
} else {
- snprintf(tmp, 255, _out_message[i].format.c_str(), (int)val);
+ *((uint32_t*)&buf[length]) = sg_bswap_32((uint32_t)val);
}
+ length += sizeof(int32_t);
break;
case FG_BOOL:
- if (binary_mode) {
- *((int8_t*)&buf[length])
- = _out_message[i].prop->getBoolValue() ? true : false;
- length += 1;
- } else {
- snprintf(tmp, 255, _out_message[i].format.c_str(),
- _out_message[i].prop->getBoolValue());
- }
+ *((int8_t*)&buf[length])
+ = _out_message[i].prop->getBoolValue() ? true : false;
+ length += 1;
break;
case FG_FIXED:
+ {
val = _out_message[i].offset +
- _out_message[i].prop->getFloatValue() * _out_message[i].factor;
- if (binary_mode) {
- int fixed = (int)(val * 65536.0f);
- if (binary_byte_order == BYTE_ORDER_MATCHES_NETWORK_ORDER) {
- *((int32_t*)&buf[length]) = (int32_t)fixed;
- } else {
- *((uint32_t*)&buf[length]) = sg_bswap_32((uint32_t)val);
- }
- length += sizeof(int32_t);
+ _out_message[i].prop->getFloatValue() * _out_message[i].factor;
+
+ int fixed = (int)(val * 65536.0f);
+ if (binary_byte_order == BYTE_ORDER_MATCHES_NETWORK_ORDER) {
+ *((int32_t*)&buf[length]) = (int32_t)fixed;
} else {
- snprintf(tmp, 255, _out_message[i].format.c_str(), (float)val);
- }
+ *((uint32_t*)&buf[length]) = sg_bswap_32((uint32_t)val);
+ }
+ length += sizeof(int32_t);
break;
-
+ }
case FG_FLOAT:
val = _out_message[i].offset +
- _out_message[i].prop->getFloatValue() * _out_message[i].factor;
- if (binary_mode) {
- if (binary_byte_order == BYTE_ORDER_MATCHES_NETWORK_ORDER) {
- *((float*)&buf[length]) = val;
- } else {
- *((float*)&buf[length]) = sg_bswap_32(*(uint32_t*)&val);
- }
- length += sizeof(int32_t);
+ _out_message[i].prop->getFloatValue() * _out_message[i].factor;
+
+ if (binary_byte_order == BYTE_ORDER_MATCHES_NETWORK_ORDER) {
+ *((float*)&buf[length]) = val;
} else {
- snprintf(tmp, 255, _out_message[i].format.c_str(), (float)val);
+ *((float*)&buf[length]) = sg_bswap_32(*(uint32_t*)&val);
}
+ length += sizeof(int32_t);
break;
case FG_DOUBLE:
val = _out_message[i].offset +
- _out_message[i].prop->getFloatValue() * _out_message[i].factor;
- if (binary_mode) {
- if (binary_byte_order == BYTE_ORDER_MATCHES_NETWORK_ORDER) {
- *((double*)&buf[length]) = val;
- } else {
- *((double*)&buf[length]) = sg_bswap_64(*(uint64_t*)&val);
- }
- length += sizeof(int64_t);
+ _out_message[i].prop->getFloatValue() * _out_message[i].factor;
+
+ if (binary_byte_order == BYTE_ORDER_MATCHES_NETWORK_ORDER) {
+ *((double*)&buf[length]) = val;
} else {
- snprintf(tmp, 255, _out_message[i].format.c_str(), (float)val);
+ *((double*)&buf[length]) = sg_bswap_64(*(uint64_t*)&val);
}
+ length += sizeof(int64_t);
break;
default: // SG_STRING
- if (binary_mode) {
- const char *strdata = _out_message[i].prop->getStringValue();
- int strlength = strlen(strdata);
+ const char *strdata = _out_message[i].prop->getStringValue();
+ int strlength = strlen(strdata);
- if (binary_byte_order == BYTE_ORDER_NEEDS_CONVERSION) {
- SG_LOG( SG_IO, SG_ALERT, "Generic protocol: "
- "FG_STRING will be written in host byte order.");
- }
- /* Format for strings is
- * [length as int, 4 bytes][ASCII data, length bytes]
- */
- if (binary_byte_order == BYTE_ORDER_MATCHES_NETWORK_ORDER) {
- *((int32_t*)&buf[length]) = strlength;
- } else {
- *((int32_t*)&buf[length]) = sg_bswap_32(strlength);
- }
- length += sizeof(int32_t);
- strncpy(&buf[length], strdata, strlength);
- length += strlength;
- /* FIXME padding for alignment? Something like:
- * length += (strlength % 4 > 0 ? sizeof(int32_t) - strlength % 4 : 0;
- */
+ if (binary_byte_order == BYTE_ORDER_NEEDS_CONVERSION) {
+ SG_LOG( SG_IO, SG_ALERT, "Generic protocol: "
+ "FG_STRING will be written in host byte order.");
+ }
+ /* Format for strings is
+ * [length as int, 4 bytes][ASCII data, length bytes]
+ */
+ if (binary_byte_order == BYTE_ORDER_MATCHES_NETWORK_ORDER) {
+ *((int32_t*)&buf[length]) = strlength;
} else {
- snprintf(tmp, 255, _out_message[i].format.c_str(),
- _out_message[i].prop->getStringValue());
+ *((int32_t*)&buf[length]) = sg_bswap_32(strlength);
}
+ length += sizeof(int32_t);
+ strncpy(&buf[length], strdata, strlength);
+ length += strlength;
+ /* FIXME padding for alignment? Something like:
+ * length += (strlength % 4 > 0 ? sizeof(int32_t) - strlength % 4 : 0;
+ */
}
+ }
- if (!binary_mode) {
- generic_sentence += tmp;
+ // add the footer to the packet ("line")
+ switch (binary_footer_type) {
+ case FOOTER_LENGTH:
+ binary_footer_value = length;
+ break;
+
+ case FOOTER_MAGIC:
+ break;
+ }
+
+ if (binary_footer_type != FOOTER_NONE) {
+ if (binary_byte_order == BYTE_ORDER_MATCHES_NETWORK_ORDER) {
+ *((int32_t*)&buf[length]) = binary_footer_value;
+ } else {
+ *((int32_t*)&buf[length]) = sg_bswap_32(binary_footer_value);
}
+ length += sizeof(int32_t);
}
- if (!binary_mode) {
- /* After each lot of variables has been added, put the line separator
- * char/string
- */
- generic_sentence += line_separator;
+ return true;
+}
- length = generic_sentence.length();
- strncpy( buf, generic_sentence.c_str(), length );
- } else {
- // add the footer to the packet ("line")
- switch (binary_footer_type) {
- case FOOTER_LENGTH:
- binary_footer_value = length;
- break;
-
- case FOOTER_MAGIC:
- break;
+bool FGGeneric::gen_message_ascii() {
+ string generic_sentence;
+ char tmp[255];
+ length = 0;
+
+ double val;
+ for (unsigned int i = 0; i < _out_message.size(); i++) {
+
+ if (i > 0) {
+ generic_sentence += var_separator;
}
- if (binary_footer_type != FOOTER_NONE) {
- if (binary_byte_order == BYTE_ORDER_MATCHES_NETWORK_ORDER) {
- *((int32_t*)&buf[length]) = binary_footer_value;
- } else {
- *((int32_t*)&buf[length]) = sg_bswap_32(binary_footer_value);
- }
- length += sizeof(int32_t);
+
+ switch (_out_message[i].type) {
+ case FG_INT:
+ val = _out_message[i].offset +
+ _out_message[i].prop->getIntValue() * _out_message[i].factor;
+ snprintf(tmp, 255, _out_message[i].format.c_str(), (int)val);
+ break;
+
+ case FG_BOOL:
+ snprintf(tmp, 255, _out_message[i].format.c_str(),
+ _out_message[i].prop->getBoolValue());
+ break;
+
+ case FG_FIXED:
+ val = _out_message[i].offset +
+ _out_message[i].prop->getFloatValue() * _out_message[i].factor;
+ snprintf(tmp, 255, _out_message[i].format.c_str(), (float)val);
+ break;
+
+ case FG_FLOAT:
+ val = _out_message[i].offset +
+ _out_message[i].prop->getFloatValue() * _out_message[i].factor;
+ snprintf(tmp, 255, _out_message[i].format.c_str(), (float)val);
+ break;
+
+ case FG_DOUBLE:
+ val = _out_message[i].offset +
+ _out_message[i].prop->getFloatValue() * _out_message[i].factor;
+ snprintf(tmp, 255, _out_message[i].format.c_str(), (float)val);
+ break;
+
+ default: // SG_STRING
+ snprintf(tmp, 255, _out_message[i].format.c_str(),
+ _out_message[i].prop->getStringValue());
}
+
+ generic_sentence += tmp;
}
+ /* After each lot of variables has been added, put the line separator
+ * char/string
+ */
+ generic_sentence += line_separator;
+
+ length = generic_sentence.length();
+ strncpy( buf, generic_sentence.c_str(), length );
+
return true;
}
-bool FGGeneric::parse_message() {
+bool FGGeneric::gen_message() {
+ if (binary_mode) {
+ return gen_message_binary();
+ } else {
+ return gen_message_ascii();
+ }
+}
+
+bool FGGeneric::parse_message_binary() {
char *p2, *p1 = buf;
+ int64_t tmp;
double val;
int i = -1;
- if (!binary_mode) {
- while ((++i < (int)_in_message.size()) &&
- p1 && strcmp(p1, line_separator.c_str())) {
+ p2 = p1 + FG_MAX_MSG_SIZE;
+ while ((++i < (int)_in_message.size()) && (p1 < p2)) {
- p2 = strstr(p1, var_separator.c_str());
- if (p2) {
- *p2 = 0;
- p2 += var_separator.length();
+ switch (_in_message[i].type) {
+ case FG_INT:
+ if (binary_byte_order == BYTE_ORDER_NEEDS_CONVERSION) {
+ tmp = sg_bswap_32(*(int32_t *)p1);
+ } else {
+ tmp = *(int32_t *)p1;
}
- switch (_in_message[i].type) {
- case FG_INT:
- val = _in_message[i].offset + atoi(p1) * _in_message[i].factor;
- _in_message[i].prop->setIntValue((int)val);
- break;
+ val = _in_message[i].offset + (double)tmp * _in_message[i].factor;
- case FG_BOOL:
- _in_message[i].prop->setBoolValue( atof(p1) != 0.0 );
- break;
+ _in_message[i].prop->setIntValue((int)val);
+ p1 += sizeof(int32_t);
+ break;
- case FG_FIXED:
- case FG_DOUBLE:
- val = _in_message[i].offset + strtod(p1, 0) * _in_message[i].factor;
- _in_message[i].prop->setFloatValue((float)val);
- break;
+ case FG_BOOL:
+ _in_message[i].prop->setBoolValue( p1[0] != 0 );
+ p1 += 1;
+ break;
- default: // SG_STRING
- _in_message[i].prop->setStringValue(p1);
+ case FG_FIXED:
+ if (binary_byte_order == BYTE_ORDER_NEEDS_CONVERSION) {
+ tmp = sg_bswap_32(*(int32_t *)p1);
+ } else {
+ tmp = *(int32_t *)p1;
}
- p1 = p2;
- }
- } else {
- /* Binary mode */
- int64_t tmp;
+ val = _in_message[i].offset +
+ ((double)tmp / 65536.0f) * _in_message[i].factor;
- while ((++i < (int)_in_message.size()) &&
- (p1 - buf < FG_MAX_MSG_SIZE)) {
+ _in_message[i].prop->setFloatValue(val);
+ p1 += sizeof(int32_t);
+ break;
- switch (_in_message[i].type) {
- case FG_INT:
- if (binary_byte_order == BYTE_ORDER_NEEDS_CONVERSION) {
- tmp = sg_bswap_32(*(int32_t *)p1);
- } else {
- tmp = *(int32_t *)p1;
- }
- val = _in_message[i].offset +
- (double)tmp *
- _in_message[i].factor;
- _in_message[i].prop->setIntValue((int)val);
- p1 += sizeof(int32_t);
- break;
-
- case FG_BOOL:
- _in_message[i].prop->setBoolValue( p1[0] != 0 );
- p1 += 1;
- break;
-
- case FG_FIXED:
- if (binary_byte_order == BYTE_ORDER_NEEDS_CONVERSION) {
- tmp = sg_bswap_32(*(int32_t *)p1);
- } else {
- tmp = *(int32_t *)p1;
- }
- val = _in_message[i].offset +
- ((double)tmp / 65536.0f) * _in_message[i].factor;
- _in_message[i].prop->setFloatValue(val);
- p1 += sizeof(int32_t);
- break;
+ case FG_FLOAT:
+ if (binary_byte_order == BYTE_ORDER_NEEDS_CONVERSION) {
+ tmp = sg_bswap_32(*(int32_t *)p1);
+ } else {
+ tmp = *(int32_t *)p1;
+ }
- case FG_FLOAT:
- if (binary_byte_order == BYTE_ORDER_NEEDS_CONVERSION) {
- tmp = sg_bswap_32(*(int32_t *)p1);
- } else {
- tmp = *(int32_t *)p1;
- }
- val = _in_message[i].offset +
+ val = _in_message[i].offset +
*(float *)&tmp * _in_message[i].factor;
- _in_message[i].prop->setFloatValue(val);
- p1 += sizeof(int32_t);
- break;
- case FG_DOUBLE:
- if (binary_byte_order == BYTE_ORDER_NEEDS_CONVERSION) {
- tmp = sg_bswap_64(*(int64_t *)p1);
- } else {
- tmp = *(int64_t *)p1;
- }
- val = _in_message[i].offset +
- *(double *)&tmp * _in_message[i].factor;
- _in_message[i].prop->setDoubleValue(val);
- p1 += sizeof(int64_t);
- break;
+ _in_message[i].prop->setFloatValue(val);
+ p1 += sizeof(int32_t);
+ break;
- default: // SG_STRING
- SG_LOG( SG_IO, SG_ALERT, "Generic protocol: "
- "Ignoring unsupported binary input chunk type.");
+ case FG_DOUBLE:
+ if (binary_byte_order == BYTE_ORDER_NEEDS_CONVERSION) {
+ tmp = sg_bswap_64(*(int64_t *)p1);
+ } else {
+ tmp = *(int64_t *)p1;
}
+
+ val = _in_message[i].offset +
+ *(double *)&tmp * _in_message[i].factor;
+
+ _in_message[i].prop->setDoubleValue(val);
+ p1 += sizeof(int64_t);
+ break;
+
+ default: // SG_STRING
+ SG_LOG( SG_IO, SG_ALERT, "Generic protocol: "
+ "Ignoring unsupported binary input chunk type.");
}
}
return true;
}
+bool FGGeneric::parse_message_ascii() {
+ char *p2, *p1 = buf;
+ double val;
+ int i = -1;
+
+ while ((++i < (int)_in_message.size()) &&
+ p1 && strcmp(p1, line_separator.c_str())) {
+
+ p2 = strstr(p1, var_separator.c_str());
+ if (p2) {
+ *p2 = 0;
+ p2 += var_separator.length();
+ }
+
+ switch (_in_message[i].type) {
+ case FG_INT:
+ val = _in_message[i].offset + atoi(p1) * _in_message[i].factor;
+ _in_message[i].prop->setIntValue((int)val);
+ break;
+
+ case FG_BOOL:
+ _in_message[i].prop->setBoolValue( atof(p1) != 0.0 );
+ break;
+
+ case FG_FIXED:
+ case FG_DOUBLE:
+ val = _in_message[i].offset + strtod(p1, 0) * _in_message[i].factor;
+ _in_message[i].prop->setFloatValue((float)val);
+ break;
+
+ default: // SG_STRING
+ _in_message[i].prop->setStringValue(p1);
+ }
+
+ p1 = p2;
+ }
+
+ return true;
+}
+
+bool FGGeneric::parse_message() {
+ if (binary_mode) {
+ return parse_message_binary();
+ } else {
+ return parse_message_ascii();
+ }
+}
// open hailing frequencies
var_sep_string = fgUnescape(root->getStringValue("var_separator"));
line_sep_string = fgUnescape(root->getStringValue("line_separator"));
- if ( var_sep_string == "newline" )
- var_separator = '\n';
- else if ( var_sep_string == "tab" )
- var_separator = '\t';
- else if ( var_sep_string == "space" )
- var_separator = ' ';
- else if ( var_sep_string == "formfeed" )
- var_separator = '\f';
- else if ( var_sep_string == "carriagereturn" )
- var_sep_string = '\r';
- else if ( var_sep_string == "verticaltab" )
- var_separator = '\v';
- else
- var_separator = var_sep_string;
-
- if ( line_sep_string == "newline" )
- line_separator = '\n';
- else if ( line_sep_string == "tab" )
- line_separator = '\t';
- else if ( line_sep_string == "space" )
- line_separator = ' ';
- else if ( line_sep_string == "formfeed" )
- line_separator = '\f';
- else if ( line_sep_string == "carriagereturn" )
- line_separator = '\r';
- else if ( line_sep_string == "verticaltab" )
- line_separator = '\v';
- else
- line_separator = line_sep_string;
+ if ( var_sep_string == "newline" ) {
+ var_separator = '\n';
+ } else if ( var_sep_string == "tab" ) {
+ var_separator = '\t';
+ } else if ( var_sep_string == "space" ) {
+ var_separator = ' ';
+ } else if ( var_sep_string == "formfeed" ) {
+ var_separator = '\f';
+ } else if ( var_sep_string == "carriagereturn" ) {
+ var_sep_string = '\r';
+ } else if ( var_sep_string == "verticaltab" ) {
+ var_separator = '\v';
+ } else {
+ var_separator = var_sep_string;
+ }
+
+ if ( line_sep_string == "newline" ) {
+ line_separator = '\n';
+ } else if ( line_sep_string == "tab" ) {
+ line_separator = '\t';
+ } else if ( line_sep_string == "space" ) {
+ line_separator = ' ';
+ } else if ( line_sep_string == "formfeed" ) {
+ line_separator = '\f';
+ } else if ( line_sep_string == "carriagereturn" ) {
+ line_separator = '\r';
+ } else if ( line_sep_string == "verticaltab" ) {
+ line_separator = '\v';
+ } else {
+ line_separator = line_sep_string;
+ }
} else {
- binary_footer_type = FOOTER_NONE; // default choice
- binary_record_length = -1; // default choice = sizeof(representation)
+ // default values: no footer and record_length = sizeof(representation)
+ binary_footer_type = FOOTER_NONE;
+ binary_record_length = -1;
// default choice is network byte order (big endian)
if (sgIsLittleEndian()) {
if ( root->hasValue("binary_footer") ) {
string footer_type = root->getStringValue("binary_footer");
- if ( footer_type == "length" )
+ if ( footer_type == "length" ) {
binary_footer_type = FOOTER_LENGTH;
- else if ( footer_type.substr(0, 5) == "magic" ) {
+ } else if ( footer_type.substr(0, 5) == "magic" ) {
binary_footer_type = FOOTER_MAGIC;
binary_footer_value = strtol(footer_type.substr(6,
footer_type.length() - 6).c_str(), (char**)0, 0);
- } else if ( footer_type != "none" )
+ } else if ( footer_type != "none" ) {
SG_LOG(SG_IO, SG_ALERT,
- "generic protocol: Undefined generic binary protocol"
- "footer, using no footer.");
+ "generic protocol: Unknown generic binary protocol "
+ "footer '" << footer_type << "', using no footer.");
+ }
}
+
if ( root->hasValue("record_length") ) {
binary_record_length = root->getIntValue("record_length");
}
+
if ( root->hasValue("byte_order") ) {
string byte_order = root->getStringValue("byte_order");
if (byte_order == "network" ) {
binary_record_length = record_length;
} else if (binary_record_length < record_length) {
SG_LOG(SG_IO, SG_ALERT,
- "generic protocol: Requested binary record length shorter than"
+ "generic protocol: Requested binary record length shorter than "
" requested record representation.");
binary_record_length = record_length;
}
projects / flightgear.git / commitdiff