Sat Mar 24 23:51:46 2007

Asterisk developer's documentation


dlfcn-compat.h

00001 /*
00002  * Asterisk -- An open source telephony toolkit.
00003  *
00004  * See http://www.asterisk.org for more information about
00005  * the Asterisk project. Please do not directly contact
00006  * any of the maintainers of this project for assistance;
00007  * the project provides a web site, mailing lists and IRC
00008  * channels for your use.
00009  */
00010 
00011 /*
00012 Copyright (c) 2002 Jorge Acereda  <jacereda@users.sourceforge.net> &
00013                    Peter O'Gorman <ogorman@users.sourceforge.net>
00014                    
00015 Portions may be copyright others, see the AUTHORS file included with this
00016 distribution.
00017 
00018 Maintained by Peter O'Gorman <ogorman@users.sourceforge.net>
00019 
00020 Bug Reports and other queries should go to <ogorman@users.sourceforge.net>
00021 
00022 Permission is hereby granted, free of charge, to any person obtaining
00023 a copy of this software and associated documentation files (the
00024 "Software"), to deal in the Software without restriction, including
00025 without limitation the rights to use, copy, modify, merge, publish,
00026 distribute, sublicense, and/or sell copies of the Software, and to
00027 permit persons to whom the Software is furnished to do so, subject to
00028 the following conditions:
00029 
00030 The above copyright notice and this permission notice shall be
00031 included in all copies or substantial portions of the Software.
00032 
00033 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
00034 EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
00035 MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
00036 NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
00037 LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
00038 OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
00039 WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
00040 */
00041 
00042 #ifndef _DLFCN_H_
00043 #define _DLFCN_H_
00044 
00045 #ifdef __cplusplus
00046 extern "C" {
00047 #endif
00048 
00049 #if defined (__GNUC__) && __GNUC__ > 3
00050 #define dl_restrict __restrict
00051 #else
00052 #define dl_restrict
00053 #endif
00054 /*
00055  * Structure filled in by dladdr().
00056  */
00057 
00058 typedef struct dl_info {
00059         const char      *dli_fname;     /* Pathname of shared object */
00060         void            *dli_fbase;     /* Base address of shared object */
00061         const char      *dli_sname;     /* Name of nearest symbol */
00062         void            *dli_saddr;     /* Address of nearest symbol */
00063 } Dl_info;
00064 
00065 extern void * dlopen(const char *path, int mode);
00066 extern void * dlsym(void * dl_restrict handle, const char * dl_restrict symbol);
00067 extern const char * dlerror(void);
00068 extern int dlclose(void * handle);
00069 extern int dladdr(const void * dl_restrict, Dl_info * dl_restrict);
00070 
00071 #define RTLD_LAZY 0x1
00072 #define RTLD_NOW  0x2
00073 #define RTLD_LOCAL   0x4
00074 #define RTLD_GLOBAL  0x8
00075 #define RTLD_NOLOAD  0x10
00076 #define RTLD_NODELETE   0x80
00077 
00078 /*
00079  * Special handle arguments for dlsym().
00080  */
00081 #define  RTLD_NEXT      ((void *) -1)  /* Search subsequent objects. */
00082 #define  RTLD_DEFAULT   ((void *) -2)  /* Use default search algorithm. */
00083 
00084 #ifdef __cplusplus
00085 }
00086 #endif
00087 
00088 #endif /* _DLFCN_H_ */

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