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why did we even use an c dynamic link in node js
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@@ -1,213 +1,7 @@
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/* Libraries / Imports */
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const fs = require('fs');
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const https = require('https');
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const koffi = require('koffi');
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const path = require('path');
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const os = require('os');
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const platform = os.platform();
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const cpuArchitecture = os.arch();
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const { configName, serverConfig, configUpdate, configSave } = require('./server_config');
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let unicode_type;
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let shared_Library;
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if (platform === 'win32') {
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unicode_type = 'int16_t';
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arch_type = (cpuArchitecture === 'x64' ? 'mingw64' : 'mingw32');
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shared_Library=path.join(__dirname, "libraries", arch_type, "librdsparser.dll");
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} else if (platform === 'linux') {
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unicode_type = 'int32_t';
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arch_type = (cpuArchitecture === 'x64' ? 'x86_64' :
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(cpuArchitecture === 'ia32' ? 'x86' :
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(cpuArchitecture === 'arm64' ? 'aarch64' : cpuArchitecture)));
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shared_Library=path.join(__dirname, "libraries", arch_type, "librdsparser.so");
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} else if (platform === 'darwin') {
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unicode_type = 'int32_t';
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shared_Library=path.join(__dirname, "libraries", "macos", "librdsparser.dylib");
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}
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const lib = koffi.load(shared_Library);
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const RDSDecoder = require("./rds.js");
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const { fetchTx } = require('./tx_search.js');
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koffi.proto('void callback_pi(void *rds, void *user_data)');
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koffi.proto('void callback_pty(void *rds, void *user_data)');
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koffi.proto('void callback_tp(void *rds, void *user_data)');
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koffi.proto('void callback_ta(void *rds, void *user_data)');
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koffi.proto('void callback_ms(void *rds, void *user_data)');
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koffi.proto('void callback_ecc(void *rds, void *user_data)');
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koffi.proto('void callback_country(void *rds, void *user_data)');
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koffi.proto('void callback_af(void *rds, uint32_t af, void *user_data)');
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koffi.proto('void callback_ps(void *rds, void *user_data)');
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koffi.proto('void callback_rt(void *rds, int flag, void *user_data)');
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koffi.proto('void callback_ptyn(void *rds, void *user_data)');
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koffi.proto('void callback_ct(void *rds, void *ct, void *user_data)');
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const rdsparser = {
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new: lib.func('void* rdsparser_new()'),
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free: lib.func('void rdsparser_free(void *rds)'),
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clear: lib.func('void rdsparser_clear(void *rds)'),
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parse_string: lib.func('bool rdsparser_parse_string(void *rds, const char *input)'),
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set_text_correction: lib.func('void rdsparser_set_text_correction(void *rds, uint8_t text, uint8_t type, uint8_t error)'),
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set_text_progressive: lib.func('void rdsparser_set_text_progressive(void *rds, uint8_t string, uint8_t state)'),
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get_pi: lib.func('int32_t rdsparser_get_pi(void *rds)'),
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get_pty: lib.func('int8_t rdsparser_get_pty(void *rds)'),
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get_tp: lib.func('int8_t rdsparser_get_tp(void *rds)'),
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get_ta: lib.func('int8_t rdsparser_get_ta(void *rds)'),
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get_ms: lib.func('int8_t rdsparser_get_ms(void *rds)'),
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get_ecc: lib.func('int16_t rdsparser_get_ecc(void *rds)'),
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get_country: lib.func('int rdsparser_get_country(void *rds)'),
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get_ps: lib.func('void* rdsparser_get_ps(void *rds)'),
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get_rt: lib.func('void* rdsparser_get_rt(void *rds, int flag)'),
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get_ptyn: lib.func('void* rdsparser_get_ptyn(void *rds)'),
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register_pi: lib.func('void rdsparser_register_pi(void *rds, void *cb)'),
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register_pty: lib.func('void rdsparser_register_pty(void *rds, void *cb)'),
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register_tp: lib.func('void rdsparser_register_tp(void *rds, void *cb)'),
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register_ta: lib.func('void rdsparser_register_ta(void *rds, void *cb)'),
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register_ms: lib.func('void rdsparser_register_ms(void *rds, void *cb)'),
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register_ecc: lib.func('void rdsparser_register_ecc(void *rds, void *cb)'),
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register_country: lib.func('void rdsparser_register_country(void *rds, void *cb)'),
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register_af: lib.func('void rdsparser_register_af(void *rds, void *cb)'),
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register_ps: lib.func('void rdsparser_register_ps(void *rds, void *cb)'),
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register_rt: lib.func('void rdsparser_register_rt(void *rds, void *cb)'),
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register_ptyn: lib.func('void rdsparser_register_ptyn(void *rds, void *cb)'),
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register_ct: lib.func('void rdsparser_register_ct(void *rds, void *cb)'),
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string_get_content: lib.func(unicode_type + '* rdsparser_string_get_content(void *string)'),
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string_get_errors: lib.func('uint8_t* rdsparser_string_get_errors(void *string)'),
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string_get_length: lib.func('uint8_t rdsparser_string_get_length(void *string)'),
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ct_get_year: lib.func('uint16_t rdsparser_ct_get_year(void *ct)'),
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ct_get_month: lib.func('uint8_t rdsparser_ct_get_month(void *ct)'),
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ct_get_day: lib.func('uint8_t rdsparser_ct_get_day(void *ct)'),
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ct_get_hour: lib.func('uint8_t rdsparser_ct_get_hour(void *ct)'),
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ct_get_minute: lib.func('uint8_t rdsparser_ct_get_minute(void *ct)'),
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ct_get_offset: lib.func('int8_t rdsparser_ct_get_offset(void *ct)'),
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pty_lookup_short: lib.func('const char* rdsparser_pty_lookup_short(int8_t pty, bool rbds)'),
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pty_lookup_long: lib.func('const char* rdsparser_pty_lookup_long(int8_t pty, bool rbds)'),
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country_lookup_name: lib.func('const char* rdsparser_country_lookup_name(int country)'),
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country_lookup_iso: lib.func('const char* rdsparser_country_lookup_iso(int country)')
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}
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const callbacks = {
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pi: koffi.register(rds => (
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value = rdsparser.get_pi(rds)
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//console.log('PI: ' + value.toString(16).toUpperCase())
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), 'callback_pi*'),
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pty: koffi.register(rds => (
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value = rdsparser.get_pty(rds),
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dataToSend.pty = value
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), 'callback_pty*'),
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tp: koffi.register(rds => (
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value = rdsparser.get_tp(rds),
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dataToSend.tp = value
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), 'callback_tp*'),
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ta: koffi.register(rds => (
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value = rdsparser.get_ta(rds),
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dataToSend.ta = value
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), 'callback_ta*'),
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ms: koffi.register(rds => (
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value = rdsparser.get_ms(rds),
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dataToSend.ms = value
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), 'callback_ms*'),
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af: koffi.register((rds, value) => (
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dataToSend.af.push(value)
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), 'callback_af*'),
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ecc: koffi.register(rds => (
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value = rdsparser.get_ecc(rds),
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dataToSend.ecc = value
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), 'callback_ecc*'),
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country: koffi.register(rds => (
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value = rdsparser.get_country(rds),
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display = rdsparser.country_lookup_name(value),
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iso = rdsparser.country_lookup_iso(value),
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dataToSend.country_name = display,
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dataToSend.country_iso = iso
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), 'callback_country*'),
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ps: koffi.register(rds => (
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ps = rdsparser.get_ps(rds),
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dataToSend.ps = decode_unicode(ps),
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dataToSend.ps_errors = decode_errors(ps)
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), 'callback_ps*'),
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rt: koffi.register((rds, flag) => {
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const rt = rdsparser.get_rt(rds, flag);
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if (flag === 0) {
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dataToSend.rt0 = decode_unicode(rt);
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dataToSend.rt0_errors = decode_errors(rt);
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}
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if (flag === 1) {
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dataToSend.rt1 = decode_unicode(rt);
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dataToSend.rt1_errors = decode_errors(rt);
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}
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dataToSend.rt_flag = flag;
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}, 'callback_rt*'),
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ptyn: koffi.register((rds, flag) => (
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value = decode_unicode(rdsparser.get_ptyn(rds))
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/*console.log('PTYN: ' + value)*/
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), 'callback_ptyn*'),
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ct: koffi.register((rds, ct) => (
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year = rdsparser.ct_get_year(ct),
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month = String(rdsparser.ct_get_month(ct)).padStart(2, '0'),
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day = String(rdsparser.ct_get_day(ct)).padStart(2, '0'),
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hour = String(rdsparser.ct_get_hour(ct)).padStart(2, '0'),
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minute = String(rdsparser.ct_get_minute(ct)).padStart(2, '0'),
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offset = rdsparser.ct_get_offset(ct),
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tz_sign = (offset >= 0 ? '+' : '-'),
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tz_hour = String(Math.abs(Math.floor(offset / 60))).padStart(2, '0'),
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tz_minute = String(Math.abs(offset % 60)).padStart(2, '0')
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//console.log('CT: ' + year + '-' + month + '-' + day + ' ' + hour + ':' + minute + ' (' + tz_sign + tz_hour + ':' + tz_minute + ')')
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), 'callback_ct*')
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};
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let rds = rdsparser.new()
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rdsparser.set_text_correction(rds, 0, 0, 2);
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rdsparser.set_text_correction(rds, 0, 1, 2);
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rdsparser.set_text_correction(rds, 1, 0, 2);
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rdsparser.set_text_correction(rds, 1, 1, 2);
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rdsparser.set_text_progressive(rds, 0, 1)
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rdsparser.set_text_progressive(rds, 1, 1)
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rdsparser.register_pi(rds, callbacks.pi);
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rdsparser.register_pty(rds, callbacks.pty);
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rdsparser.register_tp(rds, callbacks.tp);
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rdsparser.register_ta(rds, callbacks.ta);
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rdsparser.register_ms(rds, callbacks.ms);
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rdsparser.register_ecc(rds, callbacks.ecc);
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rdsparser.register_country(rds, callbacks.country);
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rdsparser.register_af(rds, callbacks.af);
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rdsparser.register_ps(rds, callbacks.ps);
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rdsparser.register_rt(rds, callbacks.rt);
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rdsparser.register_ptyn(rds, callbacks.ptyn);
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rdsparser.register_ct(rds, callbacks.ct);
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const decode_unicode = function(string) {
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let length = rdsparser.string_get_length(string);
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if (length) {
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let content = rdsparser.string_get_content(string);
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let array = koffi.decode(content, unicode_type + ' [' + length + ']');
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return String.fromCodePoint.apply(String, array);
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}
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return '';
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};
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const decode_errors = function(string) {
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let length = rdsparser.string_get_length(string);
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if (length) {
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let errors = rdsparser.string_get_errors(string);
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let array = koffi.decode(errors, 'uint8_t [' + length + ']');
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return Uint8Array.from(array).toString();
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}
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return '';
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};
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const updateInterval = 75;
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// Initialize the data object
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@@ -229,7 +23,9 @@ var dataToSend = {
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ecc: null,
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af: [],
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rt0: '',
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rt0_errors: '',
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rt1: '',
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rt1_errors: '',
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rt_flag: '',
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ims: 0,
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eq: 0,
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@@ -251,6 +47,8 @@ var dataToSend = {
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users: 0,
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};
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const rds = new RDSDecoder(dataToSend);
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const filterMappings = {
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'G11': { eq: 1, ims: 1 },
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'G01': { eq: 0, ims: 1 },
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@@ -283,7 +81,7 @@ function rdsReceived() {
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function rdsReset() {
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resetToDefault(dataToSend);
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dataToSend.af.length = 0;
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rdsparser.clear(rds);
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rds.clear();
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if (rdsTimeoutTimer) {
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clearTimeout(rdsTimeoutTimer);
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rdsTimeoutTimer = null;
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@@ -400,11 +198,18 @@ function handleData(wss, receivedData, rdsWss) {
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data += (((errors & 0x03) == 0) ? modifiedData.slice(12, 16) : '----');
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const newDataString = "G:\r\n" + data + "\r\n\r\n";
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const finalBuffer = Buffer.from(newDataString, 'utf-8');
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client.send(finalBuffer);
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client.send(newDataString);
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});
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rdsparser.parse_string(rds, modifiedData);
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var data2 = "";
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for(var i = 0; i < modifiedData.length; i++) {
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data2 += modifiedData[i]
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if ((i + 1) % 4 === 0 && i !== modifiedData.length - 1) data2 += " ";
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}
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var data = [];
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data2.split(" ").forEach((i) => {data.push(parseInt(i, 16))})
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rds.decodeGroup(data[0], data[1], data[2], data[3], data[4])
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legacyRdsPiBuffer = null;
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break;
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}
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