348 lines
11 KiB
C
348 lines
11 KiB
C
#ifndef _NORM_API
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#define _NORM_API
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#ifdef WIN32
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#include <winsock2.h>
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#include <windows.h>
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#else
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#include <sys/types.h> // for "off_t"
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#endif // WIN32
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////////////////////////////////////////////////////////////
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// IMPORTANT NOTICE
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// The NORM API is _very_ much in a developmental phase
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// right now. So, although this code is available in
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// source code distribution, it is very much subject
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// to change in future revisions. The goal of the NORM
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// API _will_ be to provide a stable base of function calls
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// for applications to use, even as the underlying NORM
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// C++ code continues to evolve. But, until this notice
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// is removed, the API shouldn't be considered final.
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/** NORM API Data Types and Constants
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* These are data types and constants defined
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* for the NORM API
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*/
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typedef const void* NormInstanceHandle;
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extern const NormInstanceHandle NORM_INSTANCE_INVALID;
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typedef const void* NormSessionHandle;
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extern const NormSessionHandle NORM_SESSION_INVALID;
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typedef unsigned short NormSessionId;
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typedef const void* NormNodeHandle;
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extern const NormNodeHandle NORM_NODE_INVALID;
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typedef unsigned long NormNodeId;
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extern const NormNodeId NORM_NODE_NONE;
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extern const NormNodeId NORM_NODE_ANY;
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typedef const void* NormObjectHandle;
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extern const NormObjectHandle NORM_OBJECT_INVALID;
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typedef unsigned short NormObjectTransportId;
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#ifdef WIN32
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typedef __int64 NormSize;
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#else
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typedef off_t NormSize;
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#endif // WIN32
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enum NormObjectType
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{
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NORM_OBJECT_NONE,
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NORM_OBJECT_DATA,
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NORM_OBJECT_FILE,
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NORM_OBJECT_STREAM
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};
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enum NormFlushMode
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{
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NORM_FLUSH_NONE,
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NORM_FLUSH_PASSIVE,
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NORM_FLUSH_ACTIVE
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};
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enum NormNackingMode
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{
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NORM_NACK_NONE,
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NORM_NACK_INFO_ONLY,
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NORM_NACK_NORMAL
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};
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enum NormRepairBoundary
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{
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NORM_BOUNDARY_BLOCK,
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NORM_BOUNDARY_OBJECT
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};
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enum NormEventType
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{
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NORM_EVENT_INVALID = 0,
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NORM_TX_QUEUE_VACANCY,
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NORM_TX_QUEUE_EMPTY,
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NORM_TX_FLUSH_COMPLETED,
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NORM_TX_OBJECT_SENT,
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NORM_TX_OBJECT_PURGED,
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NORM_LOCAL_SERVER_CLOSED,
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NORM_REMOTE_SERVER_NEW,
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NORM_REMOTE_SERVER_ACTIVE,
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NORM_REMOTE_SERVER_INACTIVE,
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NORM_REMOTE_SERVER_PURGED,
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NORM_RX_OBJECT_NEW,
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NORM_RX_OBJECT_INFO,
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NORM_RX_OBJECT_UPDATED,
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NORM_RX_OBJECT_COMPLETED,
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NORM_RX_OBJECT_ABORTED
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};
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typedef struct
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{
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NormEventType type;
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NormSessionHandle session;
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NormNodeHandle sender;
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NormObjectHandle object;
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} NormEvent;
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/** NORM API General Initialization and Operation Functions */
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NormInstanceHandle NormCreateInstance(bool priorityBoost = false);
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void NormDestroyInstance(NormInstanceHandle instanceHandle);
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// This MUST be set to enable NORM_OBJECT_FILE reception!
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bool NormSetCacheDirectory(NormInstanceHandle instanceHandle,
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const char* cachePath);
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// This call blocks until the next NormEvent is ready unless asynchronous
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// notification is used (see below)
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bool NormGetNextEvent(NormInstanceHandle instanceHandle, NormEvent* theEvent);
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// The "NormGetDescriptor()" function returns a HANDLE (WIN32) or
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// a file descriptor (UNIX) which can be used for async notification
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// of pending NORM events. On WIN32, the returned HANDLE can be used
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// with system calls like "WaitForSingleEvent()", and on Unix the
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// returned descriptor can be used in a "select()" call. If this type
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// of asynchronous notification is used, calls to "NormGetNextEvent()" will
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// not block when the notification is posted.
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#ifdef WIN32
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typedef HANDLE NormDescriptor;
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#else
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typedef int NormDescriptor;
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#endif // if/else WIN32/UNIX
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extern const NormDescriptor NORM_DESCRIPTOR_INVALID;
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NormDescriptor NormGetDescriptor(NormInstanceHandle instanceHandle);
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/** NORM Session Creation and Control Functions */
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NormSessionHandle NormCreateSession(NormInstanceHandle instanceHandle,
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const char* sessionAddress,
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unsigned short sessionPort,
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NormNodeId localNodeId);
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void NormDestroySession(NormSessionHandle sessionHandle);
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void NormSetUserData(NormSessionHandle sessionHandle, const void* userData);
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const void* NormGetUserData(NormSessionHandle sessionHandle);
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NormNodeId NormGetLocalNodeId(NormSessionHandle sessionHandle);
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void NormSetTxPort(NormSessionHandle sessionHandle,
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unsigned short txPortNumber);
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bool NormSetMulticastInterface(NormSessionHandle sessionHandle,
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const char* interfaceName);
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bool NormSetTTL(NormSessionHandle sessionHandle,
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unsigned char ttl);
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bool NormSetTOS(NormSessionHandle sessionHandle,
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unsigned char tos);
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bool NormSetLoopback(NormSessionHandle sessionHandle,
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bool loopback);
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// Special functions for debug support
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void NormSetMessageTrace(NormSessionHandle sessionHandle, bool state);
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void NormSetTxLoss(NormSessionHandle sessionHandle, double percent);
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void NormSetRxLoss(NormSessionHandle sessionHandle, double percent);
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/** NORM Sender Functions */
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bool NormStartSender(NormSessionHandle sessionHandle,
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NormSessionId sessionId,
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unsigned long bufferSpace,
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unsigned short segmentSize,
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unsigned char numData,
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unsigned char numParity);
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void NormStopSender(NormSessionHandle sessionHandle);
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void NormSetTransmitRate(NormSessionHandle sessionHandle,
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double bitsPerSecond);
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bool NormSetTxSocketBuffer(NormSessionHandle sessionHandle,
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unsigned int bufferSize);
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void NormSetCongestionControl(NormSessionHandle sessionHandle,
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bool state);
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void NormSetTransmitRateBounds(NormSessionHandle sessionHandle,
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double rateMin,
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double rateMax);
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void NormSetTransmitCacheBounds(NormSessionHandle sessionHandle,
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NormSize sizeMax,
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unsigned long countMin,
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unsigned long countMax);
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void NormSetAutoParity(NormSessionHandle sessionHandle,
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unsigned char autoParity);
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void NormSetGrttEstimate(NormSessionHandle sessionHandle,
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double grttEstimate);
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bool NormAddAckingNode(NormSessionHandle sessionHandle,
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NormNodeId nodeId);
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void NormRemoveAckingNode(NormSessionHandle sessionHandle,
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NormNodeId nodeId);
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NormObjectHandle NormFileEnqueue(NormSessionHandle sessionHandle,
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const char* fileName,
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const char* infoPtr = (const char*)0,
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unsigned int infoLen = 0);
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bool NormDataEnqueue(const char* dataPtr,
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unsigned long dataLen,
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const char* infoPtr = (const char*)0,
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unsigned int infoLen = 0);
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NormObjectHandle NormStreamOpen(NormSessionHandle sessionHandle,
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unsigned long bufferSize);
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void NormStreamClose(NormObjectHandle streamHandle, bool graceful = false);
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unsigned int NormStreamWrite(NormObjectHandle streamHandle,
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const char* buffer,
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unsigned int numBytes);
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void NormStreamFlush(NormObjectHandle streamHandle,
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bool eom = false,
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NormFlushMode flushMode = NORM_FLUSH_PASSIVE);
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void NormStreamSetAutoFlush(NormObjectHandle streamHandle,
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NormFlushMode flushMode);
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void NormStreamSetPushEnable(NormObjectHandle streamHandle,
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bool pushEnable);
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bool NormStreamHasVacancy(NormObjectHandle streamHandle);
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void NormStreamMarkEom(NormObjectHandle streamHandle);
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bool NormSetWatermark(NormSessionHandle sessionHandle,
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NormObjectHandle objectHandle);
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/** NORM Receiver Functions */
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bool NormStartReceiver(NormSessionHandle sessionHandle,
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unsigned long bufferSpace);
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void NormStopReceiver(NormSessionHandle sessionHandle);
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bool NormSetRxSocketBuffer(NormSessionHandle sessionHandle,
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unsigned int bufferSize);
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void NormSetSilentReceiver(NormSessionHandle sessionHandle,
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bool silent);
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void NormSetDefaultUnicastNack(NormSessionHandle sessionHandle,
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bool unicastNacks);
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void NormNodeSetUnicastNack(NormNodeHandle remoteSender,
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bool unicastNacks);
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void NormSetDefaultNackingMode(NormSessionHandle sessionHandle,
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NormNackingMode nackingMode);
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void NormNodeSetNackingMode(NormNodeHandle nodeHandle,
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NormNackingMode nackingMode);
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void NormObjectSetNackingMode(NormObjectHandle objectHandle,
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NormNackingMode nackingMode);
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void NormSetDefaultRepairBoundary(NormSessionHandle sessionHandle,
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NormRepairBoundary repairBoundary);
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void NormNodeSetRepairBoundary(NormNodeHandle nodeHandle,
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NormRepairBoundary repairBoundary);
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bool NormStreamRead(NormObjectHandle streamHandle,
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char* buffer,
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unsigned int* numBytes);
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bool NormStreamSeekMsgStart(NormObjectHandle streamHandle);
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unsigned long NormStreamGetReadOffset(NormObjectHandle streamHandle);
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/** NORM Object Functions */
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NormObjectType NormObjectGetType(NormObjectHandle objectHandle);
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bool NormObjectHasInfo(NormObjectHandle objectHandle);
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unsigned short NormObjectGetInfoLength(NormObjectHandle objectHandle);
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unsigned short NormObjectGetInfo(NormObjectHandle objectHandle,
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char* buffer,
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unsigned short bufferLen);
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NormSize NormObjectGetSize(NormObjectHandle objectHandle);
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NormSize NormObjectGetBytesPending(NormObjectHandle objectHandle);
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void NormObjectCancel(NormObjectHandle objectHandle);
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void NormObjectRetain(NormObjectHandle objectHandle);
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void NormObjectRelease(NormObjectHandle objectHandle);
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bool NormFileGetName(NormObjectHandle fileHandle,
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char* nameBuffer,
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unsigned int bufferLen);
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bool NormFileRename(NormObjectHandle fileHandle,
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const char* fileName);
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const char*volatile NormDataAccessData(NormObjectHandle objectHandle);
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char* NormDataDetachData(NormObjectHandle objectHandle);
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NormNodeHandle NormObjectGetSender(NormObjectHandle objectHandle);
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/** NORM Node Functions */
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NormNodeId NormNodeGetId(NormNodeHandle nodeHandle);
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bool NormNodeGetAddress(NormNodeHandle nodeHandle,
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char* addrBuffer,
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unsigned int* bufferLen,
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unsigned short* port = (unsigned short*)0);
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void NormNodeRetain(NormNodeHandle nodeHandle);
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void NormNodeRelease(NormNodeHandle nodeHandle);
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#endif // _NORM_API
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