1 #ifndef _DATABIN_H_ 2 #define _DATABIN_H_ 3 4 /******************************************************************************* 5 * NAME 6 * databingen - fill a buffer with a data pattern 7 * 8 * SYNOPSIS 9 * (void) databingen(mode, buffer, bsize, offset) 10 * int mode; 11 * char *buffer; 12 * int bsize; 13 * int offset; 14 * 15 * DESCRIPTION 16 * datagen fills the buffer pointed to by 'buffer' with 'bsize' bytes 17 * of data of the form indicated by 'mode'. 18 * All modes (expect r -random) are file offset based. 19 * This allows more than process to do writing to the file without 20 * corrupting it if the same modes were used. 21 * They data modes to choose from, these are: 22 * 23 * 'a' - writes an alternating bit pattern (i.e. 0x5555555...) 24 * 25 * 'c' - writes a checkerboard pattern (i.e. 0xff00ff00ff00...) 26 * 27 * 'C' - writes counting pattern (i.e. 0 - 07, 0 - 07, ...); 28 * 29 * 'o' - writes all bits set (i.e. 0xffffffffffffff...) 30 * 31 * 'z' - writes all bits cleared (i.e. 0x000000000...); 32 * 33 * 'r' - writes random integers 34 * 35 * RETURN VALUE 36 * None 37 * 38 *******************************************************************************/ 39 40 void databingen( int mode, char *buffer, int bsize, int offset ); 41 42 int databinchk( int mode, char *buffer, int bsize, int offset, char **errmsg); 43 44 #endif 45
