73 lines
1.8 KiB
C
73 lines
1.8 KiB
C
/*
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* Copyright (C) 2022 Camden Dixie O'Brien
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as
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* published by the Free Software Foundation, either version 3 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
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* Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public
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* License along with this program. If not, see
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* <https://www.gnu.org/licenses/>.
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*/
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#include "ds.h"
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#include "solve.h"
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#include "sud.h"
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#include <fcntl.h>
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#include <stdint.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <sys/mman.h>
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#include <unistd.h>
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#define IFNAME "puzzles"
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#define OFNAME "results"
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#define FSIZE (NPUZZ * NCELLS)
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int main(void)
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{
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int fd;
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fd = open(IFNAME, O_RDONLY);
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if (fd == -1) {
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fputs("Failed to open puzzles file\n", stderr);
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return EXIT_FAILURE;
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}
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char *ibuf = mmap(NULL, FSIZE, PROT_READ, MAP_PRIVATE, fd, 0);
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if (ibuf == MAP_FAILED) {
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fputs("Failed to mmap() puzzles file\n", stderr);
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return EXIT_FAILURE;
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}
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close(fd);
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fd = open(OFNAME, O_RDWR);
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if (fd == -1) {
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fputs("Failed to open results file\n", stderr);
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return EXIT_FAILURE;
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}
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char *obuf = mmap(NULL, FSIZE, PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0);
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if (obuf == MAP_FAILED) {
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fputs("Failed to mmap() results file\n", stderr);
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return EXIT_FAILURE;
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}
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close(fd);
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struct sudoku sud;
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for (unsigned o = 0; o < FSIZE; o += NCELLS) {
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load(&sud, ibuf + o);
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solve(&sud);
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save(&sud, obuf + o);
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}
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munmap(ibuf, FSIZE);
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munmap(obuf, FSIZE);
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return EXIT_SUCCESS;
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}
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