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im-sdk  12.3.91
IMTrans.hh
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00001 /*
00002 Copyright 1990-2001 Sun Microsystems, Inc. All Rights Reserved.
00003 
00004 Permission is hereby granted, free of charge, to any person obtaining a
00005 copy of this software and associated documentation files (the
00006 "Software"), to deal in the Software without restriction, including
00007 without limitation the rights to use, copy, modify, merge, publish,
00008 distribute, sublicense, and/or sell copies of the Software, and to
00009 permit persons to whom the Software is furnished to do so, subject to
00010 the following conditions: The above copyright notice and this
00011 permission notice shall be included in all copies or substantial
00012 portions of the Software.
00013 
00014 
00015 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
00016 OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
00017 MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
00018 IN NO EVENT SHALL THE OPEN GROUP OR SUN MICROSYSTEMS, INC. BE LIABLE
00019 FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF
00020 CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH
00021 THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE EVEN IF
00022 ADVISED IN ADVANCE OF THE POSSIBILITY OF SUCH DAMAGES.
00023 
00024 
00025 Except as contained in this notice, the names of The Open Group and/or
00026 Sun Microsystems, Inc. shall not be used in advertising or otherwise to
00027 promote the sale, use or other dealings in this Software without prior
00028 written authorization from The Open Group and/or Sun Microsystems,
00029 Inc., as applicable.
00030 
00031 
00032 X Window System is a trademark of The Open Group
00033 
00034 OSF/1, OSF/Motif and Motif are registered trademarks, and OSF, the OSF
00035 logo, LBX, X Window System, and Xinerama are trademarks of the Open
00036 Group. All other trademarks and registered trademarks mentioned herein
00037 are the property of their respective owners. No right, title or
00038 interest in or to any trademark, service mark, logo or trade name of
00039 Sun Microsystems, Inc. or its licensors is granted.
00040 
00041 */
00042 #ifndef _imtrans_hh
00043 #define _imtrans_hh
00044 #include <string.h>
00045 #ifdef WIN32
00046 #include <windows.h>
00047 #ifdef CYGWIN_NT
00048 #include <sys/time.h>
00049 #endif
00050 #else
00051 #include <sys/time.h>
00052 #endif
00053 #include "CompoundString.hh"
00054 #include <sys/select.h>
00055 
00056 class IMTransAccept;
00057 
00058 class IMTransListen {
00059  public:
00060   IMTransListen(CompoundString im_address, CompoundString protocol_name="",
00061                                           int network=1);
00062 #ifdef linux
00063   /* 4354367: Linix Htt: htt_xbe can not start on standalone system */
00064   void IMTransListenUNIX(CompoundString im_address, CompoundString protocol_name="");
00065 #endif
00066   void IMTransListenINET(CompoundString im_address, CompoundString protocol_name="");
00067   ~IMTransListen();
00068   IMTransAccept* accept();
00069   int connection_id() { return listen_socket; }
00070  private:
00071   int check_fd_resource_limit(int fd);
00072   int listen_socket;
00073   int cur_maxfd;
00074   int incr_fd;
00075   int fd_resource_limit;
00076 };
00077 
00078 class IMTransAccept {
00079  public:
00080   IMTransAccept(int fd) : accept_fd(fd) {
00081     memset(&rmask_fd, 0, sizeof(fd_set));
00082     FD_SET(fd, &rmask_fd);
00083   }
00084   ~IMTransAccept();
00085   int read(char *buf, int len);
00086   int write(char *buf, int len);
00087   int connection_id();
00088   int select_fd(struct timeval);
00089 
00090   enum SELECT_TYPE {
00091     Trans_ERROR = -1, Trans_TIMEOUT = 0, Trans_ACCEPT = 1
00092   };
00093  private:
00094   // dummy declaration to prevent making a copy
00095   IMTransAccept(const IMTransAccept&);
00096   IMTransAccept& operator=(const IMTransAccept& a);
00097   int accept_fd;
00098   fd_set rmask_fd;
00099 };
00100 #endif