utils_fuchsia.h

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// 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.
 
#ifndef RUNTIME_PLATFORM_UTILS_FUCHSIA_H_
#define RUNTIME_PLATFORM_UTILS_FUCHSIA_H_
 
#include <endian.h>
#include <memory>
 
namespace sys {
 
// From Fuchsia SDK.
class ComponentContext;
 
}  // namespace sys
 
namespace inspect {
 
// From Fuchsia SDK.
class Node;
 
}  // namespace inspect
 
namespace dart {
 
inline uint16_t Utils::HostToBigEndian16(uint16_t value) {
  return htobe16(value);
}
 
inline uint32_t Utils::HostToBigEndian32(uint32_t value) {
  return htobe32(value);
}
 
inline uint64_t Utils::HostToBigEndian64(uint64_t value) {
  return htobe64(value);
}
 
inline uint16_t Utils::HostToLittleEndian16(uint16_t value) {
  return htole16(value);
}
 
inline uint32_t Utils::HostToLittleEndian32(uint32_t value) {
  return htole32(value);
}
 
inline uint64_t Utils::HostToLittleEndian64(uint64_t value) {
  return htole64(value);
}
 
inline char* Utils::StrError(int err, char* buffer, size_t bufsize) {
  if (strerror_r(err, buffer, bufsize) != 0) {
    snprintf(buffer, bufsize, "%s", "strerror_r failed");
  }
  return buffer;
}
 
// Returns the singleton component context for this process.
//
// The returned pointer is never null.  The caller must not take ownership of
// the context.
//
// The context is a singleton as it can be meaningfully instantiated only once
// during the lifetime of the program.  If you use this function, you MUST NOT
// call sys::ComponentContext::Create().
sys::ComponentContext* ComponentContext();
 
// Sets the inspect node set to be used in the dart vm
//
// This method will take ownership of the node
void SetDartVmNode(std::unique_ptr<inspect::Node> node);
 
// Returns the inspect node set in SetDartVmNode().
//
// The caller should take ownership of the returned node because
// the value will be set to null after this call.
// This call may return null if no node is provided.
std::unique_ptr<inspect::Node> TakeDartVmNode();
 
}  // namespace dart
 
#endif  // RUNTIME_PLATFORM_UTILS_FUCHSIA_H_