95 lines
1.8 KiB
C++
95 lines
1.8 KiB
C++
#include "HGDll.h"
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#include "HGInc.h"
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#include "HGInfo.h"
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#if !defined(HG_CMP_MSC)
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#include <dlfcn.h>
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#endif
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struct HGDllImpl
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{
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HGDllImpl()
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{
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m_hDll = NULL;
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}
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~HGDllImpl()
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{
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if (NULL != m_hDll)
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{
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#if !defined(HG_CMP_MSC)
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dlclose(m_hDll);
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#else
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FreeLibrary(m_hDll);
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#endif
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m_hDll = NULL;
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}
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}
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#if !defined(HG_CMP_MSC)
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void* m_hDll;
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#else
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HMODULE m_hDll;
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#endif
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};
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HGResult HGAPI HGBase_CreateDll(const HGChar* fileName, HGDll* dll)
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{
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if (NULL == fileName || NULL == dll)
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{
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return HGBASE_ERR_INVALIDARG;
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}
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#if !defined(HG_CMP_MSC)
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void* hDll = dlopen(fileName, RTLD_LAZY);
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if (NULL == hDll)
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{
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HGBase_WriteInfo(HGBASE_INFOTYPE_ERROR, "HGBase_CreateDll: dlopen fail, %s dlerror=%s", fileName, dlerror());
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return HGBASE_ERR_LOADLIBRARY;
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}
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#else
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HMODULE hDll = LoadLibraryExA((const char *)fileName, NULL, LOAD_WITH_ALTERED_SEARCH_PATH);
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if (NULL == hDll)
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{
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HGBase_WriteInfo(HGBASE_INFOTYPE_ERROR, "HGBase_CreateDll: LoadLibraryExA fail, %s GetLastError=%u", fileName, GetLastError());
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return HGBASE_ERR_LOADLIBRARY;
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}
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#endif
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HGDllImpl* dllImpl = new HGDllImpl;
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dllImpl->m_hDll = hDll;
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*dll = (HGDll)dllImpl;
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return HGBASE_ERR_OK;
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}
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HGResult HGAPI HGBase_DestroyDll(HGDll dll)
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{
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if (NULL == dll)
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{
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return HGBASE_ERR_INVALIDARG;
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}
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HGDllImpl* dllImpl = (HGDllImpl*)dll;
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delete dllImpl;
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return HGBASE_ERR_OK;
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}
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HGResult HGAPI HGBase_GetDllProcAddress(HGDll dll, const HGChar* symbol, HGPointer* func)
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{
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if (NULL == dll || NULL == symbol || NULL == func)
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{
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return HGBASE_ERR_INVALIDARG;
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}
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HGDllImpl* dllImpl = (HGDllImpl*)dll;
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#if !defined(HG_CMP_MSC)
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*func = dlsym(dllImpl->m_hDll, symbol);
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#else
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* func = GetProcAddress(dllImpl->m_hDll, (const char *)symbol);
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#endif
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if (NULL == *func)
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{
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return HGBASE_ERR_FAIL;
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}
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return HGBASE_ERR_OK;
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}
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