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#include "./main.h"
#include "./serviceList.h"
#include "./ifc_omservice.h"
OmServiceList::OmServiceList()
: ref(1), cursor(0)
{
}
OmServiceList::~OmServiceList()
{
size_t index = list.size();
while(index--)
{
list[index]->Release();
}
}
HRESULT OmServiceList::CreateInstance(OmServiceList **instance)
{
if (NULL == instance) return E_POINTER;
*instance = new OmServiceList();
if (NULL == *instance) return E_OUTOFMEMORY;
return S_OK;
}
size_t OmServiceList::AddRef()
{
return InterlockedIncrement((LONG*)&ref);
}
size_t OmServiceList::Release()
{
if (0 == ref)
return ref;
LONG r = InterlockedDecrement((LONG*)&ref);
if (0 == r)
delete(this);
return r;
}
int OmServiceList::QueryInterface(GUID interface_guid, void **object)
{
if (NULL == object) return E_POINTER;
if (IsEqualIID(interface_guid, IFC_OmServiceEnum))
*object = static_cast<ifc_omserviceenum*>(this);
else
{
*object = NULL;
return E_NOINTERFACE;
}
if (NULL == *object)
return E_UNEXPECTED;
AddRef();
return S_OK;
}
HRESULT OmServiceList::Next(unsigned long listSize, ifc_omservice **elementList, unsigned long *elementCount)
{
if (NULL == elementList || 0 == listSize) return E_INVALIDARG;
size_t size = list.size();
if (cursor >= size)
{
if (NULL != elementCount) *elementCount = 0;
return S_FALSE;
}
size_t available = size - cursor;
size_t count = ((available > listSize) ? listSize : available);
ifc_omservice **source = &list.at(0) + cursor;
CopyMemory(elementList, source, count * sizeof(ifc_omservice*));
for(size_t i = 0; i < count; i++)
{
elementList[i]->AddRef();
}
cursor += count;
if (NULL != elementCount)
*elementCount = (ULONG)count;
return (count == listSize) ? S_OK : S_FALSE;
}
HRESULT OmServiceList::Reset(void)
{
cursor = 0;
return S_OK;
}
HRESULT OmServiceList::Skip(unsigned long elementCount)
{
size_t size = list.size();
cursor += elementCount;
if (cursor > size)
cursor = size;
return (cursor < size) ? S_OK : S_FALSE;
}
HRESULT OmServiceList::Add(ifc_omservice *service)
{
if(NULL == service) return E_INVALIDARG;
list.push_back(service);
service->AddRef();
return S_OK;
}
HRESULT OmServiceList::Remove(size_t index)
{
if (index >= list.size())
return E_FAIL;
ifc_omservice *temp = list[index];
list.erase(list.begin() + index);
temp->Release();
return S_OK;
}
HRESULT OmServiceList::Clear()
{
size_t index = list.size();
while(index--)
{
list[index]->Release();
}
list.clear();
return S_OK;
}
#define CBCLASS OmServiceList
START_DISPATCH;
CB(ADDREF, AddRef)
CB(RELEASE, Release)
CB(QUERYINTERFACE, QueryInterface)
CB(API_NEXT, Next)
CB(API_RESET, Reset)
CB(API_SKIP, Skip)
END_DISPATCH;
#undef CBCLASS
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