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