// Copyright (c) 2016, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

#include "vm/globals.h"
#if defined(HOST_OS_FUCHSIA)

#include "vm/cpuinfo.h"

#include "platform/assert.h"
#include "vm/cpuid.h"

namespace dart {

CpuInfoMethod CpuInfo::method_ = kCpuInfoDefault;
const char* CpuInfo::fields_[kCpuInfoMax] = {0};

void CpuInfo::InitOnce() {
// TODO(zra): Add support for HOST_ARCH_ARM64
#if defined(HOST_ARCH_IA32) || defined(HOST_ARCH_X64)
  method_ = kCpuInfoCpuId;

  // Initialize the CpuId information.
  CpuId::InitOnce();

  fields_[kCpuInfoProcessor] = "Processor";
  fields_[kCpuInfoModel] = "Hardware";
  fields_[kCpuInfoHardware] = "Hardware";
  fields_[kCpuInfoFeatures] = "Features";
  fields_[kCpuInfoArchitecture] = "CPU architecture";
#endif
}


void CpuInfo::Cleanup() {
  if (method_ == kCpuInfoCpuId) {
    CpuId::Cleanup();
  }
}


bool CpuInfo::FieldContains(CpuInfoIndices idx, const char* search_string) {
  if (method_ == kCpuInfoCpuId) {
    return strstr(CpuId::field(idx), search_string);
  } else {
    return false;
  }
}


const char* CpuInfo::ExtractField(CpuInfoIndices idx) {
  if (method_ == kCpuInfoCpuId) {
    return CpuId::field(idx);
  } else {
    return strdup("");
  }
}


bool CpuInfo::HasField(const char* field) {
  if (method_ == kCpuInfoCpuId) {
    return (strcmp(field, fields_[kCpuInfoProcessor]) == 0) ||
           (strcmp(field, fields_[kCpuInfoModel]) == 0) ||
           (strcmp(field, fields_[kCpuInfoHardware]) == 0) ||
           (strcmp(field, fields_[kCpuInfoFeatures]) == 0);
  } else {
    return false;
  }
}

}  // namespace dart

#endif  // defined(HOST_OS_FUCHSIA)