1 krisbash 1.1 #ifndef _pal_shlib_h
 2              #define _pal_shlib_h
 3              
 4              #include <stddef.h>
 5              #include <string.h>
 6              #include <nits/base/nits.h>
 7              
 8              #if defined(PAL_HAVE_POSIX)
 9              # include <dlfcn.h>
10              #endif
11              
12              #if defined(linux)
13              # define PAL_DLOPEN_FLAGS (RTLD_NOW | RTLD_LOCAL | RTLD_DEEPBIND)
14              #else
15              # define PAL_DLOPEN_FLAGS (RTLD_NOW | RTLD_LOCAL)
16              #endif
17              
18              PAL_BEGIN_EXTERNC
19              
20              typedef struct _Shlib Shlib;
21              
22 krisbash 1.1 Shlib* Shlib_Open_Injected(
23                  _In_z_ const PAL_Char* path,
24                  NitsCallSite cs);
25              
26              
27              #define Shlib_Open(path) Shlib_Open_Injected(path, NitsHere())
28              
29              PAL_INLINE int Shlib_Close(
30                  _Inout_ Shlib* self)
31              {
32              #if defined(_MSC_VER)
33                  return FreeLibrary((HMODULE)self) ? 0 : -1;
34              #else
35                  return (dlclose(self) == 0) ? 0 : -1;
36              #endif
37              }
38              
39              PAL_INLINE void* Shlib_Sym(
40                  _In_ Shlib* self,
41                  _In_z_ const char* symbol)
42              {
43 krisbash 1.1 #if defined(_MSC_VER)
44              #pragma warning(disable:4054)
45              #pragma warning(disable:4055)
46              
47                  FARPROC result;
48                  result = GetProcAddress((HMODULE)self, symbol);
49                  return (void*)result;
50              #else
51                  return dlsym(self, symbol);
52              #endif
53              }
54              
55              PAL_Char* Shlib_Err();
56              
57              PAL_INLINE void Shlib_FreeErr(
58                  _In_ PAL_Char* err)
59              {
60              #if defined(_MSC_VER)
61                  LocalFree(err);
62              #else
63                  PAL_Free(err);
64 krisbash 1.1 #endif
65              }
66              
67              void Shlib_Format(
68                  _Pre_writable_size_(PAL_MAX_PATH_SIZE) _Null_terminated_ TChar path[PAL_MAX_PATH_SIZE],
69                  const char* dirName, 
70                  const char* shortName);
71              
72              PAL_END_EXTERNC
73              
74              #endif /* _pal_shlib_h */