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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.
#include <endian.h>
namespace sys {
// From Fuchsia SDK.
class ComponentContext;
} // namespace sys
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();
} // namespace dart