63 lines
2.2 KiB
C
63 lines
2.2 KiB
C
#ifndef ASYNCPROTOCOL
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#define ASYNCPROTOCOL
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typedef struct __AsyncUnit AsyncUnit, *pAsyncUnit;
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typedef struct __async_txn AsyncTxn, *pAsyncTxn;
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typedef int (*AsyncTxnHandler)(pAsyncTxn pTxn);
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typedef struct __async_protocol AsyncProtocol, *pAsyncProtocol;
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pAsyncProtocol AsyncProtocolCreate(SicsInterp *pSics, const char* protocolName,
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ObjectFunc pFunc, KillFunc pKFunc);
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int AsyncProtocolAction(SConnection *pCon, SicsInterp *pSics,
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void *pData, int argc, char *argv[]);
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int AsyncProtocolFactory(SConnection *pCon, SicsInterp *pSics,
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void *pData, int argc, char *argv[]);
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typedef enum {
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ATX_NULL=0,
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ATX_TIMEOUT=-1,
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ATX_ACTIVE=1,
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ATX_COMPLETE=2,
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ATX_DISCO=3
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} ATX_STATUS;
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struct __async_txn {
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pAsyncUnit unit; /**< unit that transaction is associated with */
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int txn_state; /**< protocol handler transaction parse state */
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ATX_STATUS txn_status; /**< status of the transaction OK, Error, ... */
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int txn_timeout; /**< transaction timeout in milliseconds */
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char* out_buf; /**< output buffer for sendCommand */
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int out_len; /**< length of data to be sent */
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int out_idx; /**< index of next character to transmit */
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char* inp_buf; /**< input buffer for transaction response */
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int inp_len; /**< length of input buffer */
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int inp_idx; /**< index of next character (number already received) */
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AsyncTxnHandler handleResponse; /**< Txn response handler of command sender */
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void* cntx; /**< opaque context used by command sender */
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/* The cntx field may be used by protocol handler from sendCommand
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* as long as it is restored when response is complete
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*/
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};
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/*
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* The async protocol interface virtual function table
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*/
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struct __async_protocol {
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pObjectDescriptor pDes;
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char* protocolName;
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char *sendTerminator;
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char *replyTerminator;
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void* privateData;
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int (* sendCommand)(pAsyncProtocol p, pAsyncTxn txn);
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int (* handleInput)(pAsyncProtocol p, pAsyncTxn txn, int ch);
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int (* handleEvent)(pAsyncProtocol p, pAsyncTxn txn, int event);
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int (* prepareTxn)(pAsyncProtocol p, pAsyncTxn txn, const char* cmd, int cmd_len, int rsp_len);
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void (* killPrivate)(pAsyncProtocol p);
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};
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#endif /* ASYNCPROTOCOL */
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