254 	size_t count;   /* number of bytes already read */  in block_read()  local
281 	count = 0;  in block_read()
337 		memcpy((void *)(buffer + count),  in block_read()
342 		count += nbytes;  in block_read()
344 	assert(count == length);  in block_read()
345 	*length_read = count;  in block_read()
366 	size_t count;   /* number of bytes already read */  in block_write()  local
394 	count = 0;  in block_write()
468 		       (void *)(buffer + count),  in block_write()
486 		count += nbytes;  in block_write()
488 	assert(count == length);  in block_write()
489 	*length_written = count;  in block_write()