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Annotation of fam/fam/TCP_Client.h, Revision 1.1.1.1

1.1       trev        1: //  Copyright (C) 1999 Silicon Graphics, Inc.  All Rights Reserved.
                      2: //
                      3: //  This program is free software; you can redistribute it and/or modify it
                      4: //  under the terms of version 2 of the GNU General Public License as
                      5: //  published by the Free Software Foundation.
                      6: //
                      7: //  This program is distributed in the hope that it would be useful, but
                      8: //  WITHOUT ANY WARRANTY; without even the implied warranty of
                      9: //  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  Further, any
                     10: //  license provided herein, whether implied or otherwise, is limited to
                     11: //  this program in accordance with the express provisions of the GNU
                     12: //  General Public License.  Patent licenses, if any, provided herein do not
                     13: //  apply to combinations of this program with other product or programs, or
                     14: //  any other product whatsoever.  This program is distributed without any
                     15: //  warranty that the program is delivered free of the rightful claim of any
                     16: //  third person by way of infringement or the like.  See the GNU General
                     17: //  Public License for more details.
                     18: //
                     19: //  You should have received a copy of the GNU General Public License along
                     20: //  with this program; if not, write the Free Software Foundation, Inc., 59
                     21: //  Temple Place - Suite 330, Boston MA 02111-1307, USA.
                     22:
                     23: #ifndef TCP_Client_included
                     24: #define TCP_Client_included
                     25:
                     26: #include "ClientConnection.h"
                     27: #include "MxClient.h"
                     28: #include "Set.h"
                     29: #include "Cred.h"
                     30:
                     31: struct sockaddr_un;
                     32:
                     33: //  A TCP_Client is a client that connects to fam using the TCP/IP
                     34: //  protocol.  This class implements the fam protocol, and it also
                     35: //  handles I/O buffering.
                     36: //
                     37: //  The order of TCP_Client's fields has been optimized.  The
                     38: //  connection is next to last because it contains big buffers, and
                     39: //  the ends of the buffers will rarely be accessed.  The Activity
                     40: //  is last because it is never accessed.
                     41:
                     42: class TCP_Client : public MxClient {
                     43:
                     44: public:
                     45:
                     46:     TCP_Client(in_addr host, int fd, Cred &cred);
                     47:     ~TCP_Client();
                     48:
                     49:     bool ready_for_events();
                     50:     void post_event(const Event&, Request, const char *name);
                     51:     void enqueue_for_scan(Interest *);
                     52:     void dequeue_from_scan(Interest *);
                     53:     virtual void enqueue_scanner(Scanner *);
                     54:     virtual void suggest_insecure_compat(const char *path);
                     55:
                     56:     void send_sockaddr_un(sockaddr_un &sun) { conn.send_sockaddr_un(sun); }
                     57:
                     58: protected:
                     59:     Cred cred;  //  if !is_valid, we believe the uid/gid in each client request.
                     60:
                     61: private:
                     62:
                     63:     Set<Interest *> to_be_scanned;
                     64:     Scanner *my_scanner;
                     65:     ClientConnection conn;
                     66:     Activity a;				// simply declaring it activates timer.
                     67:     bool insecure_compat_suggested;
                     68:
                     69:     bool input_msg(const char *msg, int size);
                     70:
                     71:     static bool input_handler(const char *msg, unsigned nbytes, void *closure);
                     72:     static void unblock_handler(void *closure);
                     73:
                     74: };
                     75:
                     76: #endif /* !TCP_Client_included */