subversion/libsvn_subr/packed_data.c

1 /* packed_data.c : implement the packed binary stream data structure
62   svn_stringbuf_t *packed;
106   svn_stringbuf_t *packed;
238   stream->packed = svn_stringbuf_create_empty(root->pool);
308  * data to the sub-streams or writing to the packed data (in case there
359       /* auto-create packed data buffer.  Give it some reasonable initial
361       if (private_data->packed == NULL)
362         private_data->packed
369       /* append them to the final packed data */
370       svn_stringbuf_appendbytes(private_data->packed,
402   svn_stringbuf_appendbytes(stream->packed, data, len);
408 write_packed_uint(svn_stringbuf_t* packed, apr_uint64_t value)
412       svn_stringbuf_appendbyte(packed, (char)value);
419       svn_stringbuf_appendbytes(packed, (char *)buffer, p - buffer);
438       /* store item count and length their of packed representation */
442       write_packed_uint(tree_struct, private_data->packed
443                                    ? private_data->packed->len
467       write_packed_uint(tree_struct, stream->packed->len);
488 /* Return the total size of all packed data in STREAM, its siblings and
496   apr_size_t result = private_data->packed ? private_data->packed->len : 0;
515   apr_size_t result = stream->packed->len;
523 /* Append all packed data in STREAM, its siblings and all sub-streams to
531   if (private_data->packed)
532     svn_stringbuf_appendstr(combined, private_data->packed);
550   svn_stringbuf_appendstr(combined, stream->packed);
678   return stream->packed->len;
762 read_packed_uint(svn_stringbuf_t *packed)
765   unsigned char *p = (unsigned char *)packed->data;
768   if (read > packed->len)
769     read = packed->len;
771   packed->data += read;
772   packed->blocksize -= read;
773   packed->len -= read;
793      our local packed container? */
805       /* use this local buffer only if the packed data is shorter than this.
813       if (private_data->packed->len < sizeof(local_buffer))
815           apr_size_t trail = sizeof(local_buffer) - private_data->packed->len;
817                  private_data->packed->data,
818                  private_data->packed->len);
819           memset(local_buffer + private_data->packed->len, 0, MIN(trail, end));
824         p = (unsigned char *)private_data->packed->data;
831       /* adjust remaining packed data buffer */
833       private_data->packed->data += packed_read;
834       private_data->packed->len -= packed_read;
835       private_data->packed->blocksize -= packed_read;
879   const char *result = stream->packed->data;
882   if (count > stream->packed->len)
883     count = stream->packed->len;
885   /* advance packed buffer */
886   stream->packed->data += count;
887   stream->packed->len -= count;
888   stream->packed->blocksize -= count;
911   /* read item count & packed size; allocate packed data buffer */
916       private_data->packed = svn_stringbuf_create_ensure((apr_size_t)value,
918       private_data->packed->len = (apr_size_t)value;
948   svn_stringbuf_ensure(stream->packed, packed_size);
949   stream->packed->len = packed_size;
989 /* Read the packed contents from COMBINED, starting at *OFFSET and store
999   if (private_data->packed)
1001       memcpy(private_data->packed->data,
1003              private_data->packed->len);
1005       private_data->packed->data[private_data->packed->len] = '\0';
1006       *offset += private_data->packed->len;
1018 /* Read the packed contents from COMBINED, starting at *OFFSET and store
1027   memcpy(stream->packed->data,
1029          stream->packed->len);
1030   stream->packed->data[stream->packed->len] = '\0';
1032   *offset += stream->packed->len;