108 lines
1.6 KiB
C++
108 lines
1.6 KiB
C++
#include <string.h>
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#include "sh_stack.h"
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#include "CVector.h"
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#include "sqlite_header.h"
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struct QHandle
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{
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void *_ptr;
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FREEHANDLE _func;
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HandleType type;
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bool isfree;
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};
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CVector<QHandle *> g_Handles;
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CStack<unsigned int> g_FreeHandles;
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unsigned int MakeHandle(void *ptr, HandleType type, FREEHANDLE f)
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{
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unsigned int num;
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QHandle *h;
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if (g_FreeHandles.size())
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{
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num = g_FreeHandles.front();
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g_FreeHandles.pop();
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h = g_Handles[num];
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} else {
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h = new QHandle;
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g_Handles.push_back(h);
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num = static_cast<unsigned int>(g_Handles.size()) - 1;
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}
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h->_ptr = ptr;
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h->type = type;
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h->_func = f;
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h->isfree = false;
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return num + 1;
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}
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void *GetHandle(unsigned int num, HandleType type)
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{
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if (num == 0)
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return NULL;
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num--;
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if (num >= g_Handles.size())
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return NULL;
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QHandle *h = g_Handles[num];
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if (h->isfree || (h->type != type))
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return NULL;
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return h->_ptr;
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}
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bool FreeHandle(unsigned int num)
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{
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if (num == 0)
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return false;
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unsigned int _num = num;
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num--;
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if (num >= g_Handles.size())
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return false;
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QHandle *h = g_Handles[num];
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if (h->isfree)
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return false;
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h->_func(h->_ptr, _num);
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h->_ptr = NULL;
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h->_func = NULL;
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h->isfree = true;
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g_FreeHandles.push(num);
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return true;
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}
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void FreeAllHandles(HandleType type)
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{
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QHandle *q;
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for (size_t i = 0; i < g_Handles.size(); i++)
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{
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q = g_Handles[i];
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if (q && !q->isfree && q->type == type)
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{
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FreeHandle((unsigned int)i);
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}
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}
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}
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void FreeHandleTable()
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{
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QHandle *q;
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for (size_t i = 0; i < g_Handles.size(); i++)
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{
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q = g_Handles[i];
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if (q && !q->isfree)
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FreeHandle((unsigned int)i);
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}
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g_Handles.clear();
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while (!g_FreeHandles.empty())
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g_FreeHandles.pop();
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}
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