Michael Fabian 'Xaymar' Dirks
100 lines
1.6 KiB
C++
100 lines
1.6 KiB
C++
#include "userlibs.hpp"
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#include "bbsys.hpp"
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#include <windows.h>
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static std::vector<HMODULE> _mods;
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struct Str {
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char* p;
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int size;
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};
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static Str _strs[256];
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static int _nextStr;
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static void libNotFound()
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{
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ThrowRuntimeException("User lib not found");
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}
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static void procNotFound()
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{
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ThrowRuntimeException("User lib function not found");
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}
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void _bbLoadLibs(char* p)
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{
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std::string home;
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if (const char* t = getenv("blitzpath"))
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home = t;
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while (*p) {
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HMODULE mod = LoadLibrary(p);
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if (!mod && home.size()) {
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mod = LoadLibrary((home + "/userlibs/" + p).c_str());
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}
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p += strlen(p) + 1;
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if (mod) {
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_mods.push_back(mod);
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while (*p) {
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void* proc = GetProcAddress(mod, p);
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p += strlen(p) + 1;
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void* ptr = *(void**)p;
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p += 4;
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*(void**)ptr = proc ? proc : procNotFound;
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}
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} else {
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while (*p) {
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p += strlen(p) + 1;
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void* ptr = *(void**)p;
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p += 4;
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*(void**)ptr = libNotFound;
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}
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}
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++p;
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}
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}
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const char* _bbStrToCStr(BBStr* str)
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{
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Str& t = _strs[_nextStr++ & 255];
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int size = str->size();
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if (!t.p || t.size < size) {
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delete[] t.p;
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t.p = new char[size + 1];
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t.size = size;
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}
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memcpy(t.p, str->data(), size);
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t.p[size] = 0;
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delete str;
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return t.p;
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}
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BBStr* _bbCStrToStr(const char* str)
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{
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return new BBStr(str);
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}
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bool userlibs_create()
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{
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return true;
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}
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void userlibs_destroy()
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{
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for (; _mods.size(); _mods.pop_back())
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FreeLibrary(_mods.back());
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}
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void userlibs_link(void (*rtSym)(const char*, void*))
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{
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rtSym("_bbLoadLibs", _bbLoadLibs);
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rtSym("_bbStrToCStr", _bbStrToCStr);
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rtSym("_bbCStrToStr", _bbCStrToStr);
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}
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