lz4

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/*
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    lorem.c - lorem ipsum generator to stdout
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    Copyright (C) Yann Collet 2024
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    GPL v2 License
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    This program is free software; you can redistribute it and/or modify
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    it under the terms of the GNU General Public License as published by
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    the Free Software Foundation; either version 2 of the License, or
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    (at your option) any later version.
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    This program is distributed in the hope that it will be useful,
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    but WITHOUT ANY WARRANTY; without even the implied warranty of
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    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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    GNU General Public License for more details.
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    You should have received a copy of the GNU General Public License along
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    with this program; if not, write to the Free Software Foundation, Inc.,
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    51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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    You can contact the author at :
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   - LZ4 source repository : https://github.com/lz4/lz4
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   - Public forum : https://groups.google.com/forum/#!forum/lz4c
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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 "platform.h"  /* Compiler options, SET_BINARY_MODE */
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#include "loremOut.h"
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#include "lorem.h"     /* LOREM_genBlock */
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#include <stdio.h>
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#include <assert.h>
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#define MIN(a, b) ((a) < (b) ? (a) : (b))
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#define LOREM_BLOCKSIZE (2 << 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 = 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, 1, generated, 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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