blob: a30b6423c65ada2aac9dfd3db93dc7e3139c1d41 (
plain)
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
104
|
/* Distributed under the OSI-approved BSD 3-Clause License. See accompanying
file Copyright.txt or https://cmake.org/licensing for details. */
#include "cmDynamicLoader.h"
#include <cmConfigure.h>
#include <cmsys/DynamicLoader.hxx>
#include <map>
#include <string>
#include <utility>
class cmDynamicLoaderCache
{
public:
~cmDynamicLoaderCache();
void CacheFile(const char* path,
const cmsys::DynamicLoader::LibraryHandle& /*p*/);
bool GetCacheFile(const char* path,
cmsys::DynamicLoader::LibraryHandle& /*p*/);
bool FlushCache(const char* path);
void FlushCache();
static cmDynamicLoaderCache* GetInstance();
private:
std::map<std::string, cmsys::DynamicLoader::LibraryHandle> CacheMap;
static cmDynamicLoaderCache* Instance;
};
cmDynamicLoaderCache* cmDynamicLoaderCache::Instance = CM_NULLPTR;
cmDynamicLoaderCache::~cmDynamicLoaderCache()
{
}
void cmDynamicLoaderCache::CacheFile(
const char* path, const cmsys::DynamicLoader::LibraryHandle& p)
{
cmsys::DynamicLoader::LibraryHandle h;
if (this->GetCacheFile(path, h)) {
this->FlushCache(path);
}
this->CacheMap[path] = p;
}
bool cmDynamicLoaderCache::GetCacheFile(const char* path,
cmsys::DynamicLoader::LibraryHandle& p)
{
std::map<std::string, cmsys::DynamicLoader::LibraryHandle>::iterator it =
this->CacheMap.find(path);
if (it != this->CacheMap.end()) {
p = it->second;
return true;
}
return false;
}
bool cmDynamicLoaderCache::FlushCache(const char* path)
{
std::map<std::string, cmsys::DynamicLoader::LibraryHandle>::iterator it =
this->CacheMap.find(path);
bool ret = false;
if (it != this->CacheMap.end()) {
cmsys::DynamicLoader::CloseLibrary(it->second);
this->CacheMap.erase(it);
ret = true;
}
return ret;
}
void cmDynamicLoaderCache::FlushCache()
{
for (std::map<std::string, cmsys::DynamicLoader::LibraryHandle>::iterator
it = this->CacheMap.begin();
it != this->CacheMap.end(); it++) {
cmsys::DynamicLoader::CloseLibrary(it->second);
}
delete cmDynamicLoaderCache::Instance;
cmDynamicLoaderCache::Instance = CM_NULLPTR;
}
cmDynamicLoaderCache* cmDynamicLoaderCache::GetInstance()
{
if (!cmDynamicLoaderCache::Instance) {
cmDynamicLoaderCache::Instance = new cmDynamicLoaderCache;
}
return cmDynamicLoaderCache::Instance;
}
cmsys::DynamicLoader::LibraryHandle cmDynamicLoader::OpenLibrary(
const char* libname)
{
cmsys::DynamicLoader::LibraryHandle lh;
if (cmDynamicLoaderCache::GetInstance()->GetCacheFile(libname, lh)) {
return lh;
}
lh = cmsys::DynamicLoader::OpenLibrary(libname);
cmDynamicLoaderCache::GetInstance()->CacheFile(libname, lh);
return lh;
}
void cmDynamicLoader::FlushCache()
{
cmDynamicLoaderCache::GetInstance()->FlushCache();
}
|
