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// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "base/sync_socket.h"
#include <errno.h>
#include <limits.h>
#include <stddef.h>
#include <stdio.h>
#include <sys/types.h>
#include "base/logging.h"
namespace base {
const SyncSocket::Handle SyncSocket::kInvalidHandle = -1;
SyncSocket::SyncSocket() : handle_(kInvalidHandle) {
}
SyncSocket::~SyncSocket() {
Close();
}
// static
bool SyncSocket::CreatePair(SyncSocket* socket_a, SyncSocket* socket_b) {
return false;
}
// static
SyncSocket::Handle SyncSocket::UnwrapHandle(
const SyncSocket::TransitDescriptor& descriptor) {
// TODO(xians): Still unclear how NaCl uses SyncSocket.
// See http://crbug.com/409656
NOTIMPLEMENTED();
return SyncSocket::kInvalidHandle;
}
bool SyncSocket::PrepareTransitDescriptor(
ProcessHandle peer_process_handle,
SyncSocket::TransitDescriptor* descriptor) {
// TODO(xians): Still unclear how NaCl uses SyncSocket.
// See http://crbug.com/409656
NOTIMPLEMENTED();
return false;
}
bool SyncSocket::Close() {
if (handle_ != kInvalidHandle) {
if (close(handle_) < 0)
DPLOG(ERROR) << "close";
handle_ = kInvalidHandle;
}
return true;
}
size_t SyncSocket::Send(const void* buffer, size_t length) {
const ssize_t bytes_written = write(handle_, buffer, length);
return bytes_written > 0 ? bytes_written : 0;
}
size_t SyncSocket::Receive(void* buffer, size_t length) {
const ssize_t bytes_read = read(handle_, buffer, length);
return bytes_read > 0 ? bytes_read : 0;
}
size_t SyncSocket::ReceiveWithTimeout(void* buffer, size_t length, TimeDelta) {
NOTIMPLEMENTED();
return 0;
}
size_t SyncSocket::Peek() {
NOTIMPLEMENTED();
return 0;
}
CancelableSyncSocket::CancelableSyncSocket() {
}
CancelableSyncSocket::CancelableSyncSocket(Handle handle)
: SyncSocket(handle) {
}
size_t CancelableSyncSocket::Send(const void* buffer, size_t length) {
return SyncSocket::Send(buffer, length);
}
bool CancelableSyncSocket::Shutdown() {
return SyncSocket::Close();
}
// static
bool CancelableSyncSocket::CreatePair(CancelableSyncSocket* socket_a,
CancelableSyncSocket* socket_b) {
return SyncSocket::CreatePair(socket_a, socket_b);
}
} // namespace base
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