Bypass1G

#include <fcntl.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/mman.h>
#include <sys/stat.h>
#include <sys/time.h>
#include <unistd.h>
long fsize(int fd) {
  struct stat stat;
  int res = fstat(fd, &stat);
  return stat.st_size;
}
int main() {
  int32_t block0 = open("/scratch1/das160/dfsdata/datanode/current/"
                        "BP-1337554057-128.10.4.25-1653193496214/current/"
                        "finalized/subdir0/subdir4/blk_1073743092",
                        0);
  int32_t block1 = open("/scratch1/das160/dfsdata/datanode/current/"
                        "BP-1337554057-128.10.4.25-1653193496214/current/"
                        "finalized/subdir0/subdir4/blk_1073743093",
                        0);
  int32_t block2 = open("/scratch1/das160/dfsdata/datanode/current/"
                        "BP-1337554057-128.10.4.25-1653193496214/current/"
                        "finalized/subdir0/subdir4/blk_1073743094",
                        0);
  int32_t block3 = open("/scratch1/das160/dfsdata/datanode/current/"
                        "BP-1337554057-128.10.4.25-1653193496214/current/"
                        "finalized/subdir0/subdir4/blk_1073743095",
                        0);
  int32_t block4 = open("/scratch1/das160/dfsdata/datanode/current/"
                        "BP-1337554057-128.10.4.25-1653193496214/current/"
                        "finalized/subdir0/subdir4/blk_1073743096",
                        0);
  int32_t block5 = open("/scratch1/das160/dfsdata/datanode/current/"
                        "BP-1337554057-128.10.4.25-1653193496214/current/"
                        "finalized/subdir0/subdir4/blk_1073743097",
                        0);
  int32_t block6 = open("/scratch1/das160/dfsdata/datanode/current/"
                        "BP-1337554057-128.10.4.25-1653193496214/current/"
                        "finalized/subdir0/subdir4/blk_1073743098",
                        0);
  int32_t block7 = open("/scratch1/das160/dfsdata/datanode/current/"
                        "BP-1337554057-128.10.4.25-1653193496214/current/"
                        "finalized/subdir0/subdir4/blk_1073743099",
                        0);
  long count = 0;
  int64_t size0 = fsize(block0);
  int64_t size1 = fsize(block1);
  int64_t size2 = fsize(block2);
  int64_t size3 = fsize(block3);
  int64_t size4 = fsize(block4);
  int64_t size5 = fsize(block5);
  int64_t size6 = fsize(block6);
  int64_t size7 = fsize(block7);
  struct timeval t1;
  gettimeofday(&t1, NULL);
  long t1s = t1.tv_sec * 1000000L + t1.tv_usec;
  for (int j = 0; j < 8; j++) {
    char *file;
    int64_t size;
    if (j == 0) {
      size = size0;
      file = (char *)mmap(0, size, PROT_READ, MAP_SHARED, block0, 0);
    } else if (j == 1) {
      size = size1;
      file = (char *)mmap(0, size, PROT_READ, MAP_SHARED, block1, 0);
    } else if (j == 2) {
      size = size2;
      file = (char *)mmap(0, size, PROT_READ, MAP_SHARED, block2, 0);
    } else if (j == 3) {
      size = size3;
      file = (char *)mmap(0, size, PROT_READ, MAP_SHARED, block3, 0);
    } else if (j == 4) {
      size = size4;
      file = (char *)mmap(0, size, PROT_READ, MAP_SHARED, block4, 0);
    } else if (j == 5) {
      size = size5;
      file = (char *)mmap(0, size, PROT_READ, MAP_SHARED, block5, 0);
    } else if (j == 6) {
      size = size6;
      file = (char *)mmap(0, size, PROT_READ, MAP_SHARED, block6, 0);
    } else if (j == 7) {
      size = size7;
      file = (char *)mmap(0, size, PROT_READ, MAP_SHARED, block7, 0);
    }
    for (long i = 0; i < size; i++) {
      if (file[i] != ' ')
        count++;
    }
  }
  struct timeval t2;
  gettimeofday(&t2, NULL);
  long t2s = t2.tv_sec * 1000000L + t2.tv_usec;
  printf("Time = %ld\n", t2s - t1s);
  printf("Count = %ld\n", count);
  close(block0);
  close(block1);
  close(block2);
  close(block3);
  close(block4);
  close(block5);
  close(block6);
  close(block7);
  return 1;
}