C++ (Cpp) read_speeds示例

示例#1

文件： linux-core.c 项目： julien3437/New-Serveur-Ruby-Rails

uv_err_t uv_cpu_info(uv_cpu_info_t** cpu_infos, int* count) {
  unsigned int numcpus;
  uv_cpu_info_t* ci;

  *cpu_infos = NULL;
  *count = 0;

  numcpus = sysconf(_SC_NPROCESSORS_ONLN);
  assert(numcpus != (unsigned int) -1);
  assert(numcpus != 0);

  ci = calloc(numcpus, sizeof(*ci));
  if (ci == NULL)
    return uv__new_sys_error(ENOMEM);

  read_models(numcpus, ci);
  read_times(numcpus, ci);

  /* read_models() on x86 also reads the CPU speed from /proc/cpuinfo */
  if (ci[0].speed == 0)
    read_speeds(numcpus, ci);

  *cpu_infos = ci;
  *count = numcpus;

  return uv_ok_;
}

示例#2

文件： linux-core.c 项目： JarshChen/jxcore

uv_err_t uv_cpu_info(uv_cpu_info_t** cpu_infos, int* count) {
  unsigned int numcpus;
  uv_cpu_info_t* ci;

  *cpu_infos = NULL;
  *count = 0;

  numcpus = sysconf(_SC_NPROCESSORS_ONLN);
  assert(numcpus != (unsigned int)-1);
  assert(numcpus != 0);

  ci = calloc(numcpus, sizeof(*ci));
  if (ci == NULL) return uv__new_sys_error(ENOMEM);

  if (read_models(numcpus, ci)) {
    SAVE_ERRNO(uv_free_cpu_info(ci, numcpus));
    return uv__new_sys_error(errno);
  }

  if (read_times(numcpus, ci)) {
    SAVE_ERRNO(uv_free_cpu_info(ci, numcpus));
    return uv__new_sys_error(errno);
  }

  /* read_models() on x86 also reads the CPU speed from /proc/cpuinfo.
   * We don't check for errors here. Worst case, the field is left zero.
   */
  if (ci[0].speed == 0) read_speeds(numcpus, ci);

  *cpu_infos = ci;
  *count = numcpus;

  return uv_ok_;
}

示例#3

文件： linux-core.c 项目： abouthiroppy/node

int uv_cpu_info(uv_cpu_info_t** cpu_infos, int* count) {
  unsigned int numcpus;
  uv_cpu_info_t* ci;
  int err;
  FILE* statfile_fp;

  *cpu_infos = NULL;
  *count = 0;

  statfile_fp = uv__open_file("/proc/stat");
  if (statfile_fp == NULL)
    return UV__ERR(errno);

  err = uv__cpu_num(statfile_fp, &numcpus);
  if (err < 0)
    goto out;

  err = UV_ENOMEM;
  ci = uv__calloc(numcpus, sizeof(*ci));
  if (ci == NULL)
    goto out;

  err = read_models(numcpus, ci);
  if (err == 0)
    err = read_times(statfile_fp, numcpus, ci);

  if (err) {
    uv_free_cpu_info(ci, numcpus);
    goto out;
  }

  /* read_models() on x86 also reads the CPU speed from /proc/cpuinfo.
   * We don't check for errors here. Worst case, the field is left zero.
   */
  if (ci[0].speed == 0)
    read_speeds(numcpus, ci);

  *cpu_infos = ci;
  *count = numcpus;
  err = 0;

out:

  if (fclose(statfile_fp))
    if (errno != EINTR && errno != EINPROGRESS)
      abort();

  return err;
}

示例#4

文件： linux-core.c 项目： Muraad/harmony

int uv_cpu_info(uv_cpu_info_t** cpu_infos, int* count) {
  unsigned int numcpus;
  uv_cpu_info_t* ci;
  int err;

  *cpu_infos = NULL;
  *count = 0;

  numcpus = sysconf(_SC_NPROCESSORS_ONLN);
  assert(numcpus != (unsigned int) -1);
  assert(numcpus != 0);

  ci = uv__calloc(numcpus, sizeof(*ci));
  if (ci == NULL)
    return -ENOMEM;

  err = read_models(numcpus, ci);
  if (err == 0)
    err = read_times(numcpus, ci);

  if (err) {
    uv_free_cpu_info(ci, numcpus);
    return err;
  }

  /* read_models() on x86 also reads the CPU speed from /proc/cpuinfo.
   * We don't check for errors here. Worst case, the field is left zero.
   */
  if (ci[0].speed == 0)
    read_speeds(numcpus, ci);

  *cpu_infos = ci;
  *count = numcpus;

  return 0;
}