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DsoUtils.h
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1 // note: This, I believe, should be part of Reflex::SharedLibrary
7
8 #ifndef GAUDIKERNEL_DSOUTILS_H
9 #define GAUDIKERNEL_DSOUTILS_H
10
11 // STL includes
12 #include <string>
13
14 #include "GaudiKernel/System.h"
15
16 namespace DsoUtils
17 {
18
19 inline std::string libNativeName( const std::string& libName )
20 {
21 #if defined( _WIN32 )
22 return libName + ".dll";
23 #elif defined( __linux ) || defined( __APPLE__ )
24 return "lib" + libName + ".so";
25 #else
26 // variant of the GIGO design pattern
27 return libName;
28 #endif
29 }
30
31 #ifdef _GNU_SOURCE
32 #include <dlfcn.h>
33 static std::string dsoName( void* addr )
34 {
35 Dl_info info;
36 if ( dladdr( addr, &info ) == 0 ) return "";
37
38 const char* pos = strrchr( info.dli_fname, '/' );
39 if ( pos )
40 ++pos;
41 else
42 pos = info.dli_fname;
43 return pos;
44 }
45 #elif defined( _WIN32 )
46 #include <windows.h>
47
48 static std::string dsoName( void* addr )
49 {
50 if ( addr ) {
51 MEMORY_BASIC_INFORMATION mbi;
52 if ( VirtualQuery( addr, &mbi, sizeof( mbi ) ) ) {
53 HMODULE h_module = (HMODULE)mbi.AllocationBase;
54 char mod[1024];
55 if ( GetModuleFileName( h_module, mod, sizeof( mod ) ) ) {
56 const char* pos = strrchr( mod, '\\' );
57 if ( pos )
58 ++pos;
59 else
60 pos = mod;
61 return pos;
62 }
63 }
64 }
65 return "";
66 }
67
68 #else // dummy implementation for unknown platforms
69 static std::string dsoName( const ROOT::Reflex::Member& ) { return ""; }
70
71 #endif
72
73 static bool inDso( void* addr, const std::string& dsoname )
74 {
75 #ifdef _WIN32
76 char sep = '\\';
77 #else
78 char sep = '/';
79 #endif
80
81 std::string srcname = dsoName( addr );
82 if ( srcname.empty() ) {
83 // we do not know the name of the library, let's guess it's OK
84 return true;
85 }
86
87 std::string::size_type pos = dsoname.find_last_of( sep );
88 std::string curname;
89 if ( std::string::npos == pos ) {
90 curname = dsoname;
91 } else {
92 curname = dsoname.substr( pos + 1 );
93 }
94
95 return srcname == curname;
96 }
97
98 } // end namespace DsoUtils
99
100 #endif // not GAUDIKERNEL_DSOUTILS_H
System.h
std::string::empty
T empty(T...args)
Gaudi.CommonGaudiConfigurables.mod
mod
Definition: CommonGaudiConfigurables.py:22
DsoUtils
Definition: DsoUtils.h:16
std::string
STL class.
std::string::find_last_of
T find_last_of(T...args)
std::string::substr
T substr(T...args)
DsoUtils::libNativeName
std::string libNativeName(const std::string &libName)
Definition: DsoUtils.h:19