src/gallium/auxiliary/util/u_dl.h

   1 /**************************************************************************
   2  *
   3  * Copyright 2009 VMware, Inc.
   4  * All Rights Reserved.
   5  *
   6  * Permission is hereby granted, free of charge, to any person obtaining a
   7  * copy of this software and associated documentation files (the
   8  * "Software"), to deal in the Software without restriction, including
   9  * without limitation the rights to use, copy, modify, merge, publish,
  10  * distribute, sub license, and/or sell copies of the Software, and to
  11  * permit persons to whom the Software is furnished to do so, subject to
  12  * the following conditions:
  13  *
  14  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  15  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  16  * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
  17  * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
  18  * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
  19  * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
  20  * USE OR OTHER DEALINGS IN THE SOFTWARE.
  21  *
  22  * The above copyright notice and this permission notice (including the
  23  * next paragraph) shall be included in all copies or substantial portions
  24  * of the Software.
  25  *
  26  **************************************************************************/
  27
  28
  29 #ifndef U_DL_H_
  30 #define U_DL_H_
  31
  32
  33 #include "pipe/p_config.h"
  34
  35 #ifdef  __cplusplus
  36 extern "C" {
  37 #endif
  38
  39 #if defined(PIPE_OS_WINDOWS)
  40 #  define UTIL_DL_EXT ".dll"
  41 #  define UTIL_DL_PREFIX ""
  42 #elif defined(PIPE_OS_APPLE)
  43 #  define UTIL_DL_EXT ".dylib"
  44 #  define UTIL_DL_PREFIX "lib"
  45 #else
  46 #  define UTIL_DL_EXT ".so"
  47 #  define UTIL_DL_PREFIX "lib"
  48 #endif
  49
  50
  51 struct util_dl_library;
  52
  53
  54 typedef void (*util_dl_proc)(void);
  55
  56
  57 /**
  58  * Open a library dynamically.
  59  */
  60 struct util_dl_library *
  61 util_dl_open(const char *filename);
  62
  63
  64 /**
  65  * Lookup a function in a library.
  66  */
  67 util_dl_proc
  68 util_dl_get_proc_address(struct util_dl_library *library,
  69                          const char *procname);
  70
  71
  72 /**
  73  * Close a library.
  74  */
  75 void
  76 util_dl_close(struct util_dl_library *library);
  77
  78
  79 /**
  80  * Return most recent error message.
  81  */
  82 const char *
  83 util_dl_error(void);
  84
  85 #ifdef  __cplusplus
  86 }
  87 #endif
  88
  89 #endif /* U_DL_H_ */