- Added asynchronous IO code from ANSTO

- Added new ACT protocol
- Extended sicshdbadapter to cover counters and status to put the status
 into Hipadaba
- Fixes to napi5.c
- Exe now supports hdbrun which allows to write output for a buffer into
 hdb node.

asyncprotocol.h

@@ -0,0 +1,61 @@
+#ifndef ASYNCPROTOCOL
+#define ASYNCPROTOCOL
+
+typedef struct __AsyncUnit AsyncUnit, *pAsyncUnit;
+
+typedef struct __async_txn AsyncTxn, *pAsyncTxn;
+typedef int (*AsyncTxnHandler)(pAsyncTxn pTxn);
+
+typedef struct __async_protocol AsyncProtocol, *pAsyncProtocol;
+
+pAsyncProtocol AsyncProtocolCreate(SicsInterp *pSics, const char* protocolName,
+    ObjectFunc pFunc, KillFunc pKFunc);
+
+int AsyncProtocolAction(SConnection *pCon, SicsInterp *pSics,
+                        void *pData, int argc, char *argv[]);
+
+int AsyncProtocolFactory(SConnection *pCon, SicsInterp *pSics,
+    void *pData, int argc, char *argv[]);
+
+typedef enum {
+  ATX_NULL=0,
+  ATX_TIMEOUT=-1,
+  ATX_ACTIVE=1,
+  ATX_COMPLETE=2
+} ATX_STATUS;
+
+struct __async_txn {
+  pAsyncUnit  unit; /**< unit that transaction is associated with */
+  int         txn_state; /**< protocol handler transaction parse state */
+  ATX_STATUS  txn_status; /**< status of the transaction OK, Error, ... */
+  int         txn_timeout; /**< transaction timeout in milliseconds */
+  char*       out_buf; /**< output buffer for sendCommand */
+  int         out_len; /**< length of data to be sent */
+  int         out_idx; /**< index of next character to transmit */
+  char*       inp_buf; /**< input buffer for transaction response */
+  int         inp_len; /**< length of input buffer */
+  int         inp_idx; /**< index of next character (number already received) */
+  AsyncTxnHandler handleResponse; /**< Txn response handler of command sender */
+  void*       cntx; /**< opaque context used by command sender */
+  /* The cntx field may be used by protocol handler from sendCommand
+   * as long as it is restored when response is complete
+   */
+};
+
+/*
+ * The async protocol interface virtual function table
+ */
+struct __async_protocol {
+  pObjectDescriptor pDes;
+  char* protocolName;
+  char *sendTerminator;
+  char *replyTerminator;
+  void* privateData;
+  int (* sendCommand)(pAsyncProtocol p, pAsyncTxn txn);
+  int (* handleInput)(pAsyncProtocol p, pAsyncTxn txn, int ch);
+  int (* handleEvent)(pAsyncProtocol p, pAsyncTxn txn, int event);
+  int (* prepareTxn)(pAsyncProtocol p, pAsyncTxn txn, const char* cmd, int cmd_len, int rsp_len);
+  void (* killPrivate)(pAsyncProtocol p);
+};
+
+#endif /* ASYNCPROTOCOL */