libmicrohttpd

HTTP/1.x server C library (MHD 1.x, stable)
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mhd_itc_types.h (2410B)

      1 /*
      2   This file is part of libmicrohttpd
      3   Copyright (C) 2016-2020 Karlson2k (Evgeny Grin), Christian Grothoff
      4 
      5   This library is free software; you can redistribute it and/or
      6   modify it under the terms of the GNU Lesser General Public
      7   License as published by the Free Software Foundation; either
      8   version 2.1 of the License, or (at your option) any later version.
      9 
     10   This library is distributed in the hope that it will be useful,
     11   but WITHOUT ANY WARRANTY; without even the implied warranty of
     12   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
     13   Lesser General Public License for more details.
     14 
     15   You should have received a copy of the GNU Lesser General Public
     16   License along with this library; if not, write to the Free Software
     17   Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
     18 
     19 */
     20 
     21 /**
     22  * @file microhttpd/mhd_itc_types.h
     23  * @brief  Types for platform-independent inter-thread communication
     24  * @author Karlson2k (Evgeny Grin)
     25  * @author Christian Grothoff
     26  *
     27  * Provides basic types for inter-thread communication.
     28  * Designed to be included by other headers.
     29  */
     30 #ifndef MHD_ITC_TYPES_H
     31 #define MHD_ITC_TYPES_H 1
     32 #include "mhd_options.h"
     33 
     34 /* Force socketpair on native W32 */
     35 #if defined(_WIN32) && ! defined(__CYGWIN__) && ! defined(_MHD_ITC_SOCKETPAIR)
     36 #error _MHD_ITC_SOCKETPAIR is not defined on naitive W32 platform
     37 #endif /* _WIN32 && !__CYGWIN__ && !_MHD_ITC_SOCKETPAIR */
     38 
     39 #if defined(_MHD_ITC_EVENTFD)
     40 /* **************** Optimized GNU/Linux ITC implementation by eventfd ********** */
     41 
     42 /**
     43  * Data type for a MHD ITC.
     44  */
     45 struct MHD_itc_
     46 {
     47   int fd;
     48 };
     49 
     50 /**
     51  * Static initialiser for struct MHD_itc_
     52  */
     53 #define MHD_ITC_STATIC_INIT_INVALID { -1 }
     54 
     55 
     56 #elif defined(_MHD_ITC_PIPE)
     57 /* **************** Standard UNIX ITC implementation by pipe ********** */
     58 
     59 /**
     60  * Data type for a MHD ITC.
     61  */
     62 struct MHD_itc_
     63 {
     64   int fd[2];
     65 };
     66 
     67 /**
     68  * Static initialiser for struct MHD_itc_
     69  */
     70 #define MHD_ITC_STATIC_INIT_INVALID { { -1, -1 } }
     71 
     72 
     73 #elif defined(_MHD_ITC_SOCKETPAIR)
     74 /* **************** ITC implementation by socket pair ********** */
     75 
     76 #include "mhd_sockets.h"
     77 
     78 /**
     79  * Data type for a MHD ITC.
     80  */
     81 struct MHD_itc_
     82 {
     83   MHD_socket sk[2];
     84 };
     85 
     86 /**
     87  * Static initialiser for struct MHD_itc_
     88  */
     89 #define MHD_ITC_STATIC_INIT_INVALID \
     90   { { MHD_INVALID_SOCKET, MHD_INVALID_SOCKET } }
     91 
     92 #endif /* _MHD_ITC_SOCKETPAIR */
     93 
     94 #endif /* ! MHD_ITC_TYPES_H */