65 lines
2.4 KiB
C
65 lines
2.4 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,
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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[10];
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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,
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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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