f078m.c

#include <stdio.h>
#include <string.h>
#include <sys/resource.h>

// #include "run.h"
#include "util.h"

query *query_list = 0;
char** alloc_list = 0;
int query_cnt = 0;
int mem_cnt = 0;
int fit_flag = FIRST_FIT;
int print_flag = 1;

void load(char *file) {
  FILE *input;
  int step_flag = 0, i = 0;
  char buffer[256];

  if (!(input = fopen(file, "r"))) {
    printf("Error: Can't open file %s\n", file);
    exit(-1);
  }

  while(fgets(buffer, 256, input) != 0){
    if(step_flag == 0) {

      query_cnt = atoi(buffer);
      query_list = (query*)malloc(sizeof(query) * query_cnt);

      step_flag =1;
    } else {
      query_list[i].type = buffer[0];

      if(query_list[i].type == 'm' || query_list[i].type == 'e') {
        mem_cnt++;
      }

      strncpy(query_list[i].val, buffer + 2, strlen(buffer + 2) - 1);

      i++;
    }
  }
  fclose(input);

  alloc_list = (char**)malloc(sizeof(char*) * mem_cnt);


}

int main(int argc, char *argv[]) {

  int i = 0, j = 0;
  int cnt = 0;
  int target = 0, rsize = 0;
  int tsize = 0;

  /* Error Checking */
  if (argc < 2) {
    printf("Usage: %s [-b or -w] input_file\n", argv[0]);
    exit(1);
  }

  load(argv[argc-1]);


  while(cnt != argc-1){
    if(strcmp(argv[cnt], "-b") == 0){
      fit_flag = BEST_FIT;
    }
    else if(strcmp(argv[cnt], "-w") == 0) {
      fit_flag = WORST_FIT;
    } else if(strcmp(argv[cnt], "-np") == 0) {
      print_flag =0;
    }

    cnt++;
  }

  for(i = 0 ; i < query_cnt ; i++) {

    switch(query_list[i].type) {
      case 'm':
      alloc_list[j] = m_malloc(strlen(query_list[i].val) + 1);
      strcpy(alloc_list[j], query_list[i].val);
      j++;
      break;
      case 'f':
      target = atoi(query_list[i].val);
      m_free(alloc_list[target]);
      break;
      case 'a':
      sscanf(query_list[i].val, "%d %d", &target, &rsize);
      tsize = strlen(alloc_list[target]) + rsize;
      m_realloc(alloc_list[target], tsize);
      break;
      case 'd':
      sscanf(query_list[i].val, "%d %d", &target, &rsize);
      tsize = strlen(alloc_list[target]) - rsize;
      m_realloc(alloc_list[target], tsize);
      *(alloc_list[target] + tsize) = '\0';
      break;
      case 'e':
      alloc_list[j++] = m_malloc(atoi(query_list[i].val));
      break;
    }

    print_block_list();
  }

  return 0;
}