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
105
106
107
108
109
110
111
112
113
114
115
116
117
|
#import "OFLocale.h"
#import "OFString.h"
#import "OFSystemInfo.h"
#import "OFInitializationFailedException.h"
#import "OFLoadPluginFailedException.h"
typedef OFPlugin *(*init_plugin_t)(void);
of_plugin_handle_t
of_dlopen(OFString *path, int flags)
of_dlsym(of_plugin_handle_t handle, const char *symbol)
of_dlclose(of_plugin_handle_t handle)
of_dlerror(void)
+ (id)pluginFromFile: (OFString *)path
{
void *pool = objc_autoreleasePoolPush();
of_plugin_handle_t handle;
init_plugin_t initPlugin;
OFPlugin *plugin;
#if defined(OF_MACOS)
path = [path stringByAppendingFormat: @".bundle/Contents/MacOS/%@",
path.lastPathComponent];
#elif defined(OF_IOS)
path = [path stringByAppendingFormat: @".bundle/%@",
path.lastPathComponent];
#else
path = [path stringByAppendingString: @PLUGIN_SUFFIX];
#endif
if ((handle = of_dlopen(path, OF_RTLD_LAZY)) == NULL)
@throw [OFLoadPluginFailedException
exceptionWithPath: path
error: of_dlerror()];
objc_autoreleasePoolPop(pool);
initPlugin = (init_plugin_t)(uintptr_t)of_dlsym(handle, "init_plugin");
if (initPlugin == (init_plugin_t)0 || (plugin = initPlugin()) == nil) {
of_dlclose(handle);
@throw [OFInitializationFailedException
exceptionWithClass: self];
}
plugin->_pluginHandle = handle;
return plugin;
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
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
105
106
107
108
109
110
111
112
113
114
115
116
117
|
#import "OFLocale.h"
#import "OFString.h"
#import "OFSystemInfo.h"
#import "OFInitializationFailedException.h"
#import "OFLoadPluginFailedException.h"
typedef OFPlugin *(*PluginInit)(void);
OFPluginHandle
OFDLOpen(OFString *path, OFDLOpenFlags flags)
{
#ifndef OF_WINDOWS
return dlopen([path cStringWithEncoding: [OFLocale encoding]], flags);
#else
if (path == nil)
return GetModuleHandle(NULL);
if ([OFSystemInfo isWindowsNT])
return LoadLibraryW(path.UTF16String);
else
return LoadLibraryA(
[path cStringWithEncoding: [OFLocale encoding]]);
#endif
}
void *
OFDLSym(OFPluginHandle handle, const char *symbol)
{
#ifndef OF_WINDOWS
return dlsym(handle, symbol);
#else
return (void *)(uintptr_t)GetProcAddress(handle, symbol);
#endif
}
void
OFDLClose(OFPluginHandle handle)
{
#ifndef OF_WINDOWS
dlclose(handle);
#else
FreeLibrary(handle);
#endif
}
OFString *
OFDLError(void)
{
#ifndef OF_WINDOWS
return [OFString stringWithCString: dlerror()
encoding: [OFLocale encoding]];
#else
return nil;
#endif
}
@implementation OFPlugin
+ (id)pluginWithPath: (OFString *)path
{
void *pool = objc_autoreleasePoolPush();
OFPluginHandle handle;
PluginInit initPlugin;
OFPlugin *plugin;
#if defined(OF_MACOS)
path = [path stringByAppendingFormat: @".bundle/Contents/MacOS/%@",
path.lastPathComponent];
#elif defined(OF_IOS)
path = [path stringByAppendingFormat: @".bundle/%@",
path.lastPathComponent];
#else
path = [path stringByAppendingString: @PLUGIN_SUFFIX];
#endif
if ((handle = OFDLOpen(path, OFDLOpenFlagLazy)) == NULL)
@throw [OFLoadPluginFailedException
exceptionWithPath: path
error: OFDLError()];
objc_autoreleasePoolPop(pool);
initPlugin = (PluginInit)(uintptr_t)OFDLSym(handle, "OFPluginInit");
if (initPlugin == (PluginInit)0 || (plugin = initPlugin()) == nil) {
OFDLClose(handle);
@throw [OFInitializationFailedException
exceptionWithClass: self];
}
plugin->_pluginHandle = handle;
return plugin;
}
|
130
131
132
133
134
135
136
137
138
139
140
141
142
143
|
}
return [super init];
}
- (void)dealloc
{
of_plugin_handle_t h = _pluginHandle;
[super dealloc];
of_dlclose(h);
}
@end
|
|
|
|
130
131
132
133
134
135
136
137
138
139
140
141
142
143
|
}
return [super init];
}
- (void)dealloc
{
OFPluginHandle h = _pluginHandle;
[super dealloc];
OFDLClose(h);
}
@end
|