mirror of
https://github.com/solemnwarning/directplay-lite
synced 2024-12-30 16:45:37 +01:00
41 lines
1.2 KiB
C++
41 lines
1.2 KiB
C++
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#ifndef DPLITE_ASYNCHANDLEALLOCATOR_HPP
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#define DPLITE_ASYNCHANDLEALLOCATOR_HPP
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#include <dplay8.h>
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/* There is an instance of this class in each DirectPlay8Peer/etc instance to allocate DPNHANDLEs
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* for async operations.
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*
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* Handles are allocated sequentially, they aren't currently tracked, but I doubt anyone will ever
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* have enough running at once to wrap around and conflict.
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*
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* The handle's type is encoded in the high bits so CancelAsyncOperation() can know where it needs
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* to look rather than having to search through each type of async task.
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*
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* 0x00000000 and 0xFFFFFFFF are both impossible values as they have significance to some parts of
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* DirectPlay.
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*/
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class AsyncHandleAllocator
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{
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private:
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DPNHANDLE next_enum_id;
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DPNHANDLE next_connect_id;
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DPNHANDLE next_send_id;
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public:
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static const DPNHANDLE TYPE_MASK = 0xC0000000;
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static const DPNHANDLE TYPE_ENUM = 0x00000000;
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static const DPNHANDLE TYPE_CONNECT = 0x40000000;
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static const DPNHANDLE TYPE_SEND = 0x80000000;
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AsyncHandleAllocator();
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DPNHANDLE new_enum();
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DPNHANDLE new_connect();
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DPNHANDLE new_send();
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};
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#endif /* !DPLITE_ASYNCHANDLEALLOCATOR_HPP */
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