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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 <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
} SocketProtocol;
static const NativeSocket kInvalidSocketValue;
Socket(NativeSocket socket, SocketProtocol protocol, bool should_close);
~Socket();
// 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);
// Blocks on a listening socket until a connection is received. This method assumes that
// |this->m_socket| is a listening socket, created via either TcpListen() or via the native
// constructor that takes a NativeSocket, which itself was created via a call to |listen()|
Error BlockingAccept(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);
// returns port number or 0 if error
static uint16_t GetLocalPortNumber (const NativeSocket& socket);
// returns port number or 0 if error
uint16_t GetLocalPortNumber () const;
// returns ip address string or empty string if error
std::string GetLocalIPAddress () const;
// must be connected
// returns port number or 0 if error
uint16_t GetRemotePortNumber () const;
// must be connected
// returns ip address string or empty string if error
std::string GetRemoteIPAddress () const;
NativeSocket GetNativeSocket () const { return m_socket; }
SocketProtocol GetSocketProtocol () const { return m_protocol; }
virtual Error Read (void *buf, size_t &num_bytes);
virtual Error Write (const void *buf, size_t &num_bytes);
virtual Error PreDisconnect ();
virtual Error Close ();
virtual bool IsValid () const { return m_socket != kInvalidSocketValue; }
virtual WaitableHandle GetWaitableHandle ();
static bool
DecodeHostAndPort (llvm::StringRef host_and_port,
std::string &host_str,
std::string &port_str,
int32_t& port,
Error *error_ptr);
protected:
SocketProtocol m_protocol;
NativeSocket m_socket;
SocketAddress m_udp_send_sockaddr; // Send address used for UDP connections.
};
}
#endif
|