Compress API - Compress a block of data

Compress a block of data. The src parameter points to a block of data that is srcLen bytes in size. The tgt parameter points to a buffer that is tgtSize bytes in size. The plug-in library compresses the data at address src and writes the compressed data to the buffer at address tgt. The actual amount of uncompressed data that was compressed is stored in srcAct. The actual size of the compressed data is returned as tgtAct.

sqlucompr.h

int Compress(
      struct COMPR_CB *pCB,
      const char *src,
      db2int32 srcSize,
      db2Uint32 srcGran,
      char *tgt,
      db2int32 tgtSize,
      db2int32 *srcAct,
      db2int32 *tgtAct,
      db2Uint32 *tgtCRC);