9eef8c50c0
The Oceans S1 uses a plaintext and line based communication protocol over BLE. The larger payloads, which also contain plaintext data, are transferred using the XMODEM-CRC protocol. Based-on-code-by: Linus Torvalds <torvalds@linux-foundation.org>
70 lines
2.1 KiB
C
70 lines
2.1 KiB
C
/*
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* libdivecomputer
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*
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* Copyright (C) 2017 Jef Driesen
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library 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 GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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* MA 02110-1301 USA
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*/
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#ifndef DC_PLATFORM_H
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#define DC_PLATFORM_H
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#include <stdarg.h>
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#ifdef __cplusplus
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extern "C" {
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#endif /* __cplusplus */
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#if defined(__GNUC__)
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#define DC_ATTR_FORMAT_PRINTF(a,b) __attribute__((format(printf, a, b)))
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#else
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#define DC_ATTR_FORMAT_PRINTF(a,b)
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#endif
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#ifdef _WIN32
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#define DC_PRINTF_SIZE "%Iu"
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#define DC_FORMAT_INT64 "%I64d"
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#else
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#define DC_PRINTF_SIZE "%zu"
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#define DC_FORMAT_INT64 "%lld"
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#endif
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#ifdef _MSC_VER
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#define strcasecmp _stricmp
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#define strncasecmp _strnicmp
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#if _MSC_VER < 1800
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// The rint() function is only available in MSVC 2013 and later
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// versions. Our replacement macro isn't entirely correct, because the
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// rounding rules for halfway cases are slightly different (away from
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// zero vs to even). But for our use-case, that's not a problem.
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#define rint(x) ((x) >= 0.0 ? floor((x) + 0.5): ceil((x) - 0.5))
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#endif
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#endif
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int dc_platform_sleep(unsigned int milliseconds);
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/*
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* A wrapper for the vsnprintf function, which will always null terminate the
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* string and returns a negative value if the destination buffer is too small.
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*/
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int dc_platform_snprintf (char *str, size_t size, const char *format, ...) DC_ATTR_FORMAT_PRINTF(3, 4);
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int dc_platform_vsnprintf (char *str, size_t size, const char *format, va_list ap) DC_ATTR_FORMAT_PRINTF(3, 0);
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#ifdef __cplusplus
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}
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#endif /* __cplusplus */
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#endif /* DC_PLATFORM_H */
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