41 lines
997 B
Plaintext
41 lines
997 B
Plaintext
# module.nas
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# ValKmjolnir 2022/3/5
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# this provides safe usage of dylib
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# when dylib is closed,
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# all the invalid functions cannot be called
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var module_call_func=func(fptr,args){
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return __dlcallv;
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}
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var extern={
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new: func(fptr){
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var isopen=1;
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return {
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close:func(){isopen=0;},
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call:func(args...){
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return isopen?module_call_func(fptr,args):nil;
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}
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};
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}
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};
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var module={
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new: func(name){
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var lib=dylib.dlopen(name);
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var f={};
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return {
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get:func(symbol){
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if(contains(f,symbol))
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return f[symbol];
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var fp=extern.new(dylib.dlsym(lib,symbol));
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f[symbol]=fp;
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return fp;
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},
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close: func(){
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foreach(var i;keys(f))
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f[i].close();
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dylib.dlclose(lib);
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}
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};
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}
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}; |