87 lines
2.8 KiB
C
87 lines
2.8 KiB
C
/// @file hts_os.h
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/// Operating System specific tweaks, for compatibility with POSIX.
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/*
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Copyright (C) 2017, 2019-2020 Genome Research Ltd.
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Author: James Bonfield <jkb@sanger.ac.uk>
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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DEALINGS IN THE SOFTWARE. */
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#ifndef HTSLIB_HTS_OS_H
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#define HTSLIB_HTS_OS_H
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#include "hts_defs.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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/* This is srand48_deterministic() on platforms that provide it, or srand48()
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otherwise (or our own POSIX srand48() on platforms that provide neither).
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Hence calling hts_srand48() will always set up the same POSIX-determined
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sequence of pseudo-random numbers on any platform, while calling srand48()
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may (e.g., on OpenBSD) set up a different non-deterministic sequence. */
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HTSLIB_EXPORT
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void hts_srand48(long seed);
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HTSLIB_EXPORT
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double hts_erand48(unsigned short xseed[3]);
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HTSLIB_EXPORT
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double hts_drand48(void);
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HTSLIB_EXPORT
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long hts_lrand48(void);
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#if defined(_WIN32) && !defined(__CYGWIN__)
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// Windows usually lacks *rand48(), but cygwin provides them.
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#define srand48(S) hts_srand48((S))
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#define erand48(X) hts_erand48((X))
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#define drand48() hts_drand48()
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#define lrand48() hts_lrand48()
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#endif
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#if 0 /* def _WIN32 - disabled for now, not currently used */
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/* Check if the fd is a cygwin/msys's pty. */
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extern int is_cygpty(int fd);
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#endif
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#ifdef __cplusplus
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}
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#endif
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#if defined(__MINGW32__)
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#include <io.h>
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#define mkdir(filename,mode) mkdir((filename))
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#endif
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#ifdef _WIN32
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#include <stdlib.h>
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#define srandom srand
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#define random rand
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#endif
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/* MSVC does not provide ssize_t in its <sys/types.h>. This ensures the type
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is available (unless suppressed by defining HTS_NO_SSIZE_T first). */
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#if defined _MSC_VER && defined _INTPTR_T_DEFINED && !defined _SSIZE_T_DEFINED && !defined HTS_NO_SSIZE_T && !defined ssize_t
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#define ssize_t intptr_t
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#endif
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#endif // HTSLIB_HTS_OS_H
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