stage4/generate_cc/plciec.cc
author mario
Thu, 01 Feb 2007 11:31:46 +0100
changeset 7 0df673a4a561
parent 0 fb772792efd1
permissions -rwxr-xr-x
Added some comments. Fixed some accesses to potential NULL pointers.
0
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/*
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 * (c) 2003 Mario de Sousa
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 *
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 * Offered to the public under the terms of the GNU General Public License
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 * as published by the Free Software Foundation; either version 2 of the
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 * License, or (at your option) any later version.
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 *
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 * This program is distributed in the hope that it will be useful, but
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 * WITHOUT ANY WARRANTY; without even the implied warranty of
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 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
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 * Public License for more details.
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 *
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 * This code is made available on the understanding that it will not be
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 * used in safety-critical situations without a full and competent review.
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 */
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/*
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 * An IEC 61131-3 IL and ST compiler.
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 *
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 * Based on the
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 * FINAL DRAFT - IEC 61131-3, 2nd Ed. (2001-12-10)
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 *
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 */
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/*
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 * Code to be included into the code generated by the 4th stage.
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 *
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 * This is part of the 4th stage that generates
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 * a c++ source program equivalent to the IL and ST
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 * code.
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 */
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TIME __CURRENT_TIME;
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int main(int argc, char **argv) {
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  struct timespec tp;
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  if (plc_init(DEFAULT_MODULE_NAME, argc, argv) < 0) {
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      printf("Error connecting to PLC.\n");
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      exit(EXIT_FAILURE);
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  }
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  __configuration_c config;
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  /* loop... */
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  while (1) {
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    plc_scan_beg();
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    plc_update();
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    if (clock_gettime(CLOCK_REALTIME, &tp) < 0)
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      IEC_error();
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    __CURRENT_TIME = tp;
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    config.run();
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    plc_update();
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    plc_scan_end();
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  } /* while (1) */
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return -1;
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}
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