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//===-- ConnectionFileDescriptor.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_ConnectionFileDescriptor_h_
#define liblldb_ConnectionFileDescriptor_h_
// C Includes
#ifndef _WIN32
#include <sys/socket.h>
#include <sys/types.h>
#include <netinet/in.h>
#endif
// C++ Includes
#include <memory>
// Other libraries and framework includes
// Project includes
#include "lldb/Core/Connection.h"
#include "lldb/Host/Mutex.h"
#include "lldb/Host/Predicate.h"
namespace lldb_private {
class SocketAddress;
class ConnectionFileDescriptor :
public Connection
{
public:
ConnectionFileDescriptor ();
ConnectionFileDescriptor (int fd, bool owns_fd);
virtual
~ConnectionFileDescriptor ();
virtual bool
IsConnected () const;
virtual lldb::ConnectionStatus
Connect (const char *s, Error *error_ptr);
virtual lldb::ConnectionStatus
Disconnect (Error *error_ptr);
virtual size_t
Read (void *dst,
size_t dst_len,
uint32_t timeout_usec,
lldb::ConnectionStatus &status,
Error *error_ptr);
virtual size_t
Write (const void *src,
size_t src_len,
lldb::ConnectionStatus &status,
Error *error_ptr);
// If the read file descriptor is a socket, then return
// the port number that is being used by the socket.
uint16_t
GetReadPort () const;
// If the write file descriptor is a socket, then return
// the port number that is being used by the socket.
uint16_t
GetWritePort () const;
uint16_t
GetBoundPort (uint32_t timeout_sec);
protected:
typedef enum
{
eFDTypeFile, // Other FD requireing read/write
eFDTypeSocket, // Socket requiring send/recv
eFDTypeSocketUDP // Unconnected UDP socket requiring sendto/recvfrom
} FDType;
void
OpenCommandPipe ();
void
CloseCommandPipe ();
lldb::ConnectionStatus
BytesAvailable (uint32_t timeout_usec, Error *error_ptr);
lldb::ConnectionStatus
SocketListen (const char *host_and_port, Error *error_ptr);
lldb::ConnectionStatus
ConnectTCP (const char *host_and_port, Error *error_ptr);
lldb::ConnectionStatus
ConnectUDP (const char *args, Error *error_ptr);
lldb::ConnectionStatus
NamedSocketAccept (const char *socket_name, Error *error_ptr);
lldb::ConnectionStatus
NamedSocketConnect (const char *socket_name, Error *error_ptr);
lldb::ConnectionStatus
Close (int& fd, FDType type, Error *error);
int m_fd_send;
int m_fd_recv;
FDType m_fd_send_type;
FDType m_fd_recv_type;
std::unique_ptr<SocketAddress> m_udp_send_sockaddr;
uint32_t m_socket_timeout_usec;
int m_pipe_read; // A pipe that we select on the reading end of along with
int m_pipe_write; // m_fd_recv so we can force ourselves out of the select.
Mutex m_mutex;
Predicate<uint16_t> m_port_predicate; // Used when binding to port zero to wait for the thread that creates the socket, binds and listens to resolve the port number
bool m_should_close_fd; // True if this class should close the file descriptor when it goes away.
bool m_shutting_down; // This marks that we are shutting down so if we get woken up from BytesAvailable
// to disconnect, we won't try to read again.
static uint16_t
GetSocketPort (int fd);
static int
GetSocketOption(int fd, int level, int option_name, int &option_value);
static int
SetSocketOption(int fd, int level, int option_name, int option_value);
bool
SetSocketReceiveTimeout (uint32_t timeout_usec);
private:
DISALLOW_COPY_AND_ASSIGN (ConnectionFileDescriptor);
};
} // namespace lldb_private
#endif // liblldb_ConnectionFileDescriptor_h_
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