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//===-- Socket.h ------------------------------------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#ifndef liblldb_Host_Socket_h_
#define liblldb_Host_Socket_h_
#include <memory>
#include <string>
#include "lldb/lldb-private.h"
#include "lldb/Core/Error.h"
#include "lldb/Host/IOObject.h"
#include "lldb/Host/Predicate.h"
#include "lldb/Host/SocketAddress.h"
#ifdef _WIN32
#include "lldb/Host/windows/windows.h"
#include <winsock2.h>
#include <ws2tcpip.h>
#endif
namespace llvm
{
class StringRef;
}
namespace lldb_private {
#if defined(_MSC_VER)
typedef SOCKET NativeSocket;
#else
typedef int NativeSocket;
#endif
class Socket : public IOObject
{
public:
typedef enum
{
ProtocolTcp,
ProtocolUdp,
ProtocolUnixDomain,
ProtocolUnixAbstract
} SocketProtocol;
static const NativeSocket kInvalidSocketValue;
~Socket() override;
static std::unique_ptr<Socket> Create(const SocketProtocol protocol, bool child_processes_inherit, Error &error);
virtual Error Connect(llvm::StringRef name) = 0;
virtual Error Listen(llvm::StringRef name, int backlog) = 0;
virtual Error Accept(llvm::StringRef name, bool child_processes_inherit, Socket *&socket) = 0;
// Initialize a Tcp Socket object in listening mode. listen and accept are implemented
// separately because the caller may wish to manipulate or query the socket after it is
// initialized, but before entering a blocking accept.
static Error TcpListen(
llvm::StringRef host_and_port,
bool child_processes_inherit,
Socket *&socket,
Predicate<uint16_t>* predicate,
int backlog = 5);
static Error TcpConnect(llvm::StringRef host_and_port, bool child_processes_inherit, Socket *&socket);
static Error UdpConnect(llvm::StringRef host_and_port, bool child_processes_inherit, Socket *&send_socket, Socket *&recv_socket);
static Error UnixDomainConnect(llvm::StringRef host_and_port, bool child_processes_inherit, Socket *&socket);
static Error UnixDomainAccept(llvm::StringRef host_and_port, bool child_processes_inherit, Socket *&socket);
static Error UnixAbstractConnect(llvm::StringRef host_and_port, bool child_processes_inherit, Socket *&socket);
static Error UnixAbstractAccept(llvm::StringRef host_and_port, bool child_processes_inherit, Socket *&socket);
int GetOption (int level, int option_name, int &option_value);
int SetOption (int level, int option_name, int option_value);
NativeSocket GetNativeSocket () const { return m_socket; }
SocketProtocol GetSocketProtocol () const { return m_protocol; }
Error Read (void *buf, size_t &num_bytes) override;
Error Write (const void *buf, size_t &num_bytes) override;
virtual Error PreDisconnect ();
Error Close() override;
bool IsValid () const override { return m_socket != kInvalidSocketValue; }
WaitableHandle GetWaitableHandle () override;
static bool
DecodeHostAndPort (llvm::StringRef host_and_port,
std::string &host_str,
std::string &port_str,
int32_t& port,
Error *error_ptr);
protected:
Socket(NativeSocket socket, SocketProtocol protocol, bool should_close);
virtual size_t Send(const void *buf, const size_t num_bytes);
static void SetLastError(Error &error);
static NativeSocket CreateSocket(
const int domain, const int type, const int protocol, bool child_processes_inherit, Error& error);
static NativeSocket AcceptSocket(
NativeSocket sockfd, struct sockaddr *addr, socklen_t *addrlen, bool child_processes_inherit, Error& error);
SocketProtocol m_protocol;
NativeSocket m_socket;
};
} // namespace lldb_private
#endif // liblldb_Host_Socket_h_
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