-
Notifications
You must be signed in to change notification settings - Fork 2.6k
/
DynamicLibrary.cpp
103 lines (89 loc) · 2.37 KB
/
DynamicLibrary.cpp
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
// Copyright 2019 Dolphin Emulator Project
// Licensed under GPLv2+
// Refer to the license.txt file included.
#include "Common/DynamicLibrary.h"
#include <cstring>
#include <fmt/format.h>
#include "Common/Assert.h"
#ifdef _WIN32
#include <Windows.h>
#else
#include <dlfcn.h>
#endif
namespace Common
{
DynamicLibrary::DynamicLibrary() = default;
DynamicLibrary::DynamicLibrary(const char* filename)
{
Open(filename);
}
DynamicLibrary::~DynamicLibrary()
{
Close();
}
std::string DynamicLibrary::GetUnprefixedFilename(const char* filename)
{
#if defined(_WIN32)
return std::string(filename) + ".dll";
#elif defined(__APPLE__)
return std::string(filename) + ".dylib";
#else
return std::string(filename) + ".so";
#endif
}
std::string DynamicLibrary::GetVersionedFilename(const char* libname, int major, int minor)
{
#if defined(_WIN32)
if (major >= 0 && minor >= 0)
return fmt::format("{}-{}-{}.dll", libname, major, minor);
else if (major >= 0)
return fmt::format("{}-{}.dll", libname, major);
else
return fmt::format("{}.dll", libname);
#elif defined(__APPLE__)
const char* prefix = std::strncmp(libname, "lib", 3) ? "lib" : "";
if (major >= 0 && minor >= 0)
return fmt::format("{}{}.{}.{}.dylib", prefix, libname, major, minor);
else if (major >= 0)
return fmt::format("{}{}.{}.dylib", prefix, libname, major);
else
return fmt::format("{}{}.dylib", prefix, libname);
#else
const char* prefix = std::strncmp(libname, "lib", 3) ? "lib" : "";
if (major >= 0 && minor >= 0)
return fmt::format("{}{}.so.{}.{}", prefix, libname, major, minor);
else if (major >= 0)
return fmt::format("{}{}.so.{}", prefix, libname, major);
else
return fmt::format("{}{}.so", prefix, libname);
#endif
}
bool DynamicLibrary::Open(const char* filename)
{
#ifdef _WIN32
m_handle = reinterpret_cast<void*>(LoadLibraryA(filename));
#else
m_handle = dlopen(filename, RTLD_NOW);
#endif
return m_handle != nullptr;
}
void DynamicLibrary::Close()
{
if (!IsOpen())
return;
#ifdef _WIN32
FreeLibrary(reinterpret_cast<HMODULE>(m_handle));
#else
dlclose(m_handle);
#endif
m_handle = nullptr;
}
void* DynamicLibrary::GetSymbolAddress(const char* name) const
{
#ifdef _WIN32
return reinterpret_cast<void*>(GetProcAddress(reinterpret_cast<HMODULE>(m_handle), name));
#else
return reinterpret_cast<void*>(dlsym(m_handle, name));
#endif
}
} // namespace Common