mirror of
https://github.com/facebook/zstd.git
synced 2024-11-23 13:26:44 +08:00
51 lines
1.7 KiB
C
51 lines
1.7 KiB
C
/*
|
|
* Copyright (c) Meta Platforms, Inc. and affiliates.
|
|
* All rights reserved.
|
|
*
|
|
* This source code is licensed under both the BSD-style license (found in the
|
|
* LICENSE file in the root directory of this source tree) and the GPLv2 (found
|
|
* in the COPYING file in the root directory of this source tree).
|
|
* You may select, at your option, one of the above-listed licenses.
|
|
*/
|
|
|
|
/* Implementation notes:
|
|
* Generates a stream of Lorem ipsum paragraphs to stdout,
|
|
* up to the requested size, which can be very large (> 4 GB).
|
|
* Note that, beyond 1 paragraph, this generator produces
|
|
* a different content than LOREM_genBuffer (even when using same seed).
|
|
*/
|
|
|
|
#include "loremOut.h"
|
|
#include <assert.h>
|
|
#include <stdio.h>
|
|
#include "lorem.h" /* LOREM_genBlock */
|
|
#include "platform.h" /* Compiler options, SET_BINARY_MODE */
|
|
|
|
#define MIN(a, b) ((a) < (b) ? (a) : (b))
|
|
#define LOREM_BLOCKSIZE (1 << 10)
|
|
void LOREM_genOut(unsigned long long size, unsigned seed)
|
|
{
|
|
char buff[LOREM_BLOCKSIZE] = { 0 };
|
|
unsigned long long total = 0;
|
|
size_t genBlockSize = (size_t)MIN(size, LOREM_BLOCKSIZE);
|
|
|
|
/* init */
|
|
SET_BINARY_MODE(stdout);
|
|
|
|
/* Generate Ipsum text, one paragraph at a time */
|
|
while (total < size) {
|
|
size_t generated =
|
|
LOREM_genBlock(buff, genBlockSize, seed++, total == 0, 0);
|
|
assert(generated <= genBlockSize);
|
|
total += generated;
|
|
assert(total <= size);
|
|
fwrite(buff,
|
|
1,
|
|
generated,
|
|
stdout); /* note: should check potential write error */
|
|
if (size - total < genBlockSize)
|
|
genBlockSize = (size_t)(size - total);
|
|
}
|
|
assert(total == size);
|
|
}
|