core.sys.dragonflybsd.dlfcn source code

1 /**
2  * D header file for DragonFlyBSD
3  *
4  * Copyright: Copyright Martin Nowak 2012.
5  * License:   $(WEB www.boost.org/LICENSE_1_0.txt, Boost License 1.0).
6  * Authors: Martin Nowak,Diederik de Groot(port:DragonFlyBSD)
7  * Copied:  From core/sys/freebsd/sys
8  */
9 module core.sys.dragonflybsd.dlfcn;
10 
11 version (DragonFlyBSD):
12 
13 public import core.sys.posix.dlfcn;
14 
15 extern (C) nothrow @nogc @system:
16 
17 /*
18  * Request arguments for dlinfo().
19  */
20 enum RTLD_DI_LINKMAP     = 2;    /* Obtain link map. */
21 enum RTLD_DI_SERINFO     = 4;    /* Obtain search path info. */
22 enum RTLD_DI_SERINFOSIZE = 5;    /*  ... query for required space. */
23 enum RTLD_DI_ORIGIN      = 6;    /* Obtain object origin */
24 enum RTLD_DI_MAX         = RTLD_DI_ORIGIN;
25 
26 /*
27  * Special handle arguments for dlsym()/dlinfo().
28  */
29 enum RTLD_NEXT    = cast(void *)-1;    /* Search subsequent objects. */
30 enum RTLD_DEFAULT = cast(void *)-2;    /* Use default search algorithm. */
31 enum RTLD_SELF    = cast(void *)-3;    /* Search the caller itself. */
32 
33 /*
34  * Structures, returned by the RTLD_DI_SERINFO dlinfo() request.
35  */
36 struct Dl_serpath {
37     char *          dls_name;       /* single search path entry */
38     uint            dls_flags;      /* path information */
39 }
40 
41 struct Dl_serinfo {
42     size_t          dls_size;       /* total buffer size */
43     uint            dls_cnt;        /* number of path entries */
44     Dl_serpath[1]   dls_serpath;    /* there may be more than one */
45 }
46 
47 /*-
48  * The actual type declared by this typedef is immaterial, provided that
49  * it is a function pointer.  Its purpose is to provide a return type for
50  * dlfunc() which can be cast to a function pointer type without depending
51  * on behavior undefined by the C standard, which might trigger a compiler
52  * diagnostic.  We intentionally declare a unique type signature to force
53  * a diagnostic should the application not cast the return value of dlfunc()
54  * appropriately.
55  */
56 struct __dlfunc_arg {
57     int     __dlfunc_dummy;
58 }
59 
60 alias dlfunc_t = void function(__dlfunc_arg);
61 
62 /* XSI functions first. */
63 extern(C) {
64     static assert(is(typeof(&dlclose) == int function(void*)));
65     static assert(is(typeof(&dlerror) == char* function()));
66     static assert(is(typeof(&dlopen)  == void* function(const scope char*, int)));
67     static assert(is(typeof(&dlsym)   == void* function(void*, const scope char*)));
68 }
69 
70 void*    fdlopen(int, int);
71 dlfunc_t dlfunc(void*, const(char)*);
72 int      dlinfo(void*, int, void*);
73 /*void     dllockinit(void* _context,
74     void* function(void* _context) _lock_create,
75     void  function(void* _lock)    _rlock_acquire,
76     void  function(void* _lock)    _wlock_acquire,
77     void  function(void* _lock)    _lock_release,
78     void  function(void* _lock)    _lock_destroy,
79     void  function(void* _context) _context_destroy);*/
80 void*    dlvsym(void*, const(char)*, const(char)*);