user: 这段汇编代码用C语言表示是什么样的？

```asm
<io_mon>:
  endbr64
  push   %rbp
  push   %rbx
  sub    $0xc8,%rsp
  mov    %rdi,%rbx
  mov    %fs:0x28,%rax
  mov    %rax,0xb8(%rsp)
  xor    %eax,%eax
  lea    D107(%rip),%rsi
  lea    D80(%rip),%rdi
  call   <fopen@plt>
  mov    %rax,%rbp
  test   %rax,%rax
  je     L18
L21:
  mov    %rsp,%rdx
  lea    0x8(%rsp),%rcx
  lea    0x48(%rsp),%rax
  push   %rax
  lea    0x48(%rsp),%rax
  push   %rax
  lea    0x48(%rsp),%rax
  push   %rax
  lea    0x48(%rsp),%rax
  push   %rax
  lea    0x48(%rsp),%rax
  push   %rax
  lea    0x48(%rsp),%rax
  push   %rax
  lea    0x48(%rsp),%r9
  lea    0x40(%rsp),%r8
  lea    D73(%rip),%rsi
  mov    %rbp,%rdi
  call   <fscanf@plt>
  add    $0x30,%rsp
  cmp    $0xa,%eax
  jne    L70
L198:
  mov    $0xee6b280,%esi
  mov    $0x0,%edi
  call   <timeout@plt>
  mov    %rbp,%rdi
  call   <rewind@plt>
  lea    0x50(%rsp),%rdx
  lea    0x58(%rsp),%rcx
  lea    0x98(%rsp),%rax
  push   %rax
  lea    0x98(%rsp),%rax
  push   %rax
  lea    0x98(%rsp),%rax
  push   %rax
  lea    0x98(%rsp),%rax
  push   %rax
  lea    0x98(%rsp),%rax
  push   %rax
  lea    0x98(%rsp),%rax
  push   %rax
  lea    0x98(%rsp),%r9
  lea    0x90(%rsp),%r8
  lea    D73(%rip),%rsi
  mov    %rbp,%rdi
  call   <fscanf@plt>
  add    $0x30,%rsp
  cmp    $0xa,%eax
  jne    L74
L69:
  mov    %rbp,%rdi
  call   <fclose@plt>
  test   %rax,%rax
  jne    L93
L150:
  mov    $0x0,%eax
  mov    $0x0,%edx
  mov    $0x0,%ecx
L181:
  add    (%rsp,%rax,1),%rcx
  add    0x50(%rsp,%rax,1),%rdx
  add    $0x8,%rax
  cmp    $0x50,%rax
  jne    L181
  mov    0x70(%rsp),%rax
  sub    0x20(%rsp),%rax
  js     L49
  pxor   %xmm0,%xmm0
  cvtsi2sd %rax,%xmm0
L6:
  sub    %rcx,%rdx
  js     L189
  pxor   %xmm1,%xmm1
  cvtsi2sd %rdx,%xmm1
L16:
  divsd  %xmm1,%xmm0
  mulsd  D45(%rip),%xmm0
  lea    0xa0(%rsp),%rdi
  lea    D69(%rip),%rdx
  mov    $0x14,%esi
  call   <snprintf@plt>
  test   %eax,%eax
  js     L0
L141:
  lea    0xa0(%rsp),%rdi
  mov    %rbx,%rsi
  call   <multithread_write@plt>
  mov    0xb8(%rsp),%rax
  sub    %fs:0x28,%rax
  jne    L45
  mov    $0x0,%eax
  add    $0xc8,%rsp
  pop    %rbx
  pop    %rbp
  ret
L18:
  lea    D127(%rip),%rdi
  call   <die@plt>
  jmp    L21
L70:
  mov    %rbp,%rdi
  call   <ferror@plt>
  test   %rax,%rax
  je     L77
  lea    D78(%rip),%rdi
  call   <die@plt>
  jmp    L198
L77:
  lea    D67(%rip),%rdi
  call   <die_sans_errno@plt>
  jmp    L198
L74:
  mov    %rbp,%rdi
  call   <ferror@plt>
  test   %rax,%rax
  je     L169
  lea    D20(%rip),%rdi
  call   <die@plt>
  jmp    L69
L169:
  lea    D61(%rip),%rdi
  call   <die_sans_errno@plt>
  jmp    L69
L93:
  lea    D49(%rip),%rdi
  call   <die@plt>
  jmp    L150
L49:
  mov    %rax,%rsi
  shr    %rsi
  and    $0x1,%eax
  or     %rax,%rsi
  pxor   %xmm0,%xmm0
  cvtsi2sd %rsi,%xmm0
  addsd  %xmm0,%xmm0
  jmp    L6
L189:
  mov    %rdx,%rax
  shr    %rax
  and    $0x1,%edx
  or     %rdx,%rax
  pxor   %xmm1,%xmm1
  cvtsi2sd %rax,%xmm1
  addsd  %xmm1,%xmm1
  jmp    L16
L0:
  lea    D5(%rip),%rdi
  call   <die_sans_errno@plt>
  jmp    L141
L45:
  call   <__stack_chk_fail@plt>
```

tool_calls: name: read_data
arguments: label: D107
type: string
name: read_data
arguments: label: D80
type: string
name: read_data
arguments: label: D73
type: string
name: read_data
arguments: label: D45
type: f64
name: read_data
arguments: label: D69
type: string
name: read_data
arguments: label: D127
type: string
name: read_data
arguments: label: D78
type: string
name: read_data
arguments: label: D67
type: string
name: read_data
arguments: label: D20
type: string
name: read_data
arguments: label: D61
type: string
name: read_data
arguments: label: D49
type: string
name: read_data
arguments: label: D5
type: string

tool: D107: r

tool: D80: /proc/stat

tool: D73: cpu %lu %lu %lu %lu %lu %lu %lu %lu %lu %lu

tool: D45: 100

tool: D69: io:%3.0f%%

tool: D127: couldn't open /proc/stat in io_mon

tool: D78: first fscanf on /proc/stat in io_mon failed

tool: D67: matching error for first fscanf on /proc/stat in io_mon

tool: D20: second fscanf on /proc/stat in io_mon failed

tool: D61: matching error for second fscanf on /proc/stat in io_mon

tool: D49: couldn't close /proc/stat in io_mon

tool: D5: snprintf in io_mon failed

assistant: ```c
void *io_mon(void *thread_id) {
  FILE *procstat = fopen("/proc/stat", "r");
  if (procstat == NULL) {
    die("couldn't open /proc/stat in io_mon");
  }
  unsigned long int start_stats[10];
  int values_read = fscanf(procstat, "cpu %lu %lu %lu %lu %lu %lu %lu %lu %lu %lu", start_stats + 0, start_stats + 1, start_stats + 2, start_stats + 3, start_stats + 4, start_stats + 5, start_stats + 6, start_stats + 7, start_stats + 8, start_stats + 9);
  if (values_read != 10) {
    if (ferror(procstat)) {
      die("first fscanf on /proc/stat in io_mon failed");
    } else {
      die_sans_errno("matching error for first fscanf on /proc/stat in io_mon");
    }
  }
  timeout(0, 250000000);
  rewind(procstat);
  unsigned long int end_stats[10];
  values_read = fscanf(procstat, "cpu %lu %lu %lu %lu %lu %lu %lu %lu %lu %lu", end_stats + 0, end_stats + 1, end_stats + 2, end_stats + 3, end_stats + 4, end_stats + 5, end_stats + 6, end_stats + 7, end_stats + 8, end_stats + 9);
  if (values_read != 10) {
    if (ferror(procstat)) {
      die("second fscanf on /proc/stat in io_mon failed");
    } else {
      die_sans_errno("matching error for second fscanf on /proc/stat in io_mon");
    }
  }
  if (fclose(procstat) != 0) {
    die("couldn't close /proc/stat in io_mon");
  }
  int i;
  unsigned long int total_starting_cpu_time = 0;
  unsigned long int total_ending_cpu_time = 0;
  for (i = 0; i < 10; i++) {
    total_starting_cpu_time += start_stats[i];
    total_ending_cpu_time += end_stats[i];
  }
  double percent_iowait = ((double)(end_stats[4] - start_stats[4]) / (double)(total_ending_cpu_time - total_starting_cpu_time)) * 100;
  char out_buffer[20];
  int bytes_written = snprintf(out_buffer, 20, "io:%3.0f%%", percent_iowait);
  if (bytes_written < 0) {
    die_sans_errno("snprintf in io_mon failed");
  }
  multithread_write(out_buffer, (int *)thread_id);
  return NULL;
}
```