139 lines
2.6 KiB
C
139 lines
2.6 KiB
C
#include <stdlib.h>
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#include <stdio.h>
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#include <unistd.h>
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#include <fcntl.h>
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#include <ctype.h>
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#include <string.h>
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#include <sys/mman.h>
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#include <sys/stat.h>
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int ID_OFFSET;
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struct Game
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{
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int red;
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int green;
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int blue;
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};
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struct Games
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{
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struct Game games[100];
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int interator;
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};
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void parse_game_data(char *line, struct Games games)
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{
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// printf("%s\n", line);
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char *token;
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const char delim[2] = ";";
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token = strtok(line, delim);
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printf("First token is: %s\n", token);
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char *token2;
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const char delim2[2] = ",";
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token2 = strtok(token, delim2);
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printf("Second token is: %s\n", token2);
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struct Game tmpGame;
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}
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int str_to_int(char *str)
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{
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int result;
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char *tmp;
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result = strtol(str, &tmp, 10);
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return result;
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}
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int get_id(char *ptr)
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{
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int id;
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char *_id = (char *)malloc(4);
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for (int i = 0; i <= 4; i++)
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{
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if (ptr[i] != ':')
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{
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_id[i] = ptr[i];
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}
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else
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{
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ID_OFFSET = i;
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break;
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}
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}
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id = str_to_int(_id);
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return id;
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}
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int main()
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{
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struct Games games;
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int MAX_RED = 12;
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int MAX_GREEN = 13;
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int MAX_BLUE = 14;
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int GAME_OFFSET = 5; // Skip the word Game and start on the ID number
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const char *inputFile = "input";
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int fd = open(inputFile, O_RDONLY);
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if (fd < 0)
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{
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printf("\n\"%s \" could not open\n");
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exit(1);
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}
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struct stat statbuf;
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int err = fstat(fd, &statbuf);
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if (err < 0)
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{
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printf("\n\"%s \" could not open\n", inputFile);
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exit(2);
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}
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char *ptr = mmap(NULL, statbuf.st_size, PROT_READ, MAP_SHARED, fd, 0);
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if (ptr == MAP_FAILED)
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{
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printf("Mapping failed");
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return 1;
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}
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int inLine = 0;
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for (int i = 0; i < statbuf.st_size; i++)
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{
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int id;
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char *tmpLine = (char *)malloc(255);
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for (int j = 0; j < __INT64_MAX__; j++)
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{
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if (inLine == 0)
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{
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inLine = 1;
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i += GAME_OFFSET;
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id = get_id(&ptr[i]);
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i += ID_OFFSET + 1;
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continue;
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}
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if (ptr[i + j] == '\n')
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{
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memcpy(tmpLine, &ptr[i], j);
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printf("ID: %i |", id);
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parse_game_data(tmpLine, games);
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i += j;
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break;
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}
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tmpLine[j] = ptr[i + j];
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}
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inLine = 0;
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}
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err = munmap(ptr, statbuf.st_size);
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if (err != 0)
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{
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printf("Unmapping failed");
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return 1;
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}
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return 0;
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}
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