-/*!
- * \file
- * <!--
- * Copyright 2004, 2005 Develer S.r.l. (http://www.develer.com/)
- * This file is part of DevLib - See README.devlib for information.
- * -->
- *
- * \brief OS-specific definitions
- *
- * \version $Id$
- *
- * \author Bernardo Innocenti <bernie@develer.com>
- */
-
-/*#*
- *#* $Log$
- *#* Revision 1.5 2005/11/27 23:32:42 bernie
- *#* Add CPU fallback for OS_ID.
- *#*
- *#* Revision 1.4 2005/11/27 03:07:13 bernie
- *#* IRQ_SAVE_DISABLE(): Really block signals.
- *#*
- *#* Revision 1.3 2005/11/27 03:02:40 bernie
- *#* Add POSIX emulation for IRQ_* macros; Add Qt support.
- *#*
- *#* Revision 1.2 2005/11/04 16:20:01 bernie
- *#* Fix reference to README.devlib in header.
- *#*
- *#* Revision 1.1 2005/04/11 19:04:13 bernie
- *#* Move top-level headers to cfg/ subdir.
- *#*
- *#* Revision 1.1 2004/12/31 17:40:24 bernie
- *#* Add OS detection code.
- *#*
- *#*/
-#ifndef DEVLIB_OS_H
-#define DEVLIB_OS_H
-
-/*! Macro to include OS-specific versions of the headers. */
-#define OS_HEADER(module) PP_STRINGIZE(PP_CAT3(module, _, OS_ID).h)
-#define OS_CSOURCE(module) PP_STRINGIZE(PP_CAT3(module, _, OS_ID).c)
-
-/*
- * OS autodetection (Some systems trigger multiple OS definitions)
- */
-#ifdef _WIN32
- #define OS_WIN32 1
- #define OS_ID win32
-#else
- #define OS_WIN32 0
-#endif
-
-#ifdef __unix__
- #define OS_UNIX 1
- #define OS_POSIX 1 /* Not strictly UNIX, but no way to autodetect it. */
- #define OS_ID posix
-
- /*
- * The POSIX moral equivalent of disabling IRQs is disabling signals.
- */
- #define _XOPEN_SOURCE 600 /* Avoid BSDish stuff */
- #undef _GNU_SOURCE /* This implies _BSD_SOURCE and is predefined on Linux. */
- #include <signal.h>
- typedef sigset_t cpuflags_t;
- #define IRQ_DISABLE \
- do { \
- sigset_t sigs; \
- sigfillset(&sigs); \
- sigprocmask(SIG_BLOCK, &sigs, NULL); \
- } while (0)
-
- #define IRQ_ENABLE \
- do { \
- sigset_t sigs; \
- sigemptyset(&sigs); \
- sigprocmask(SIG_UNBLOCK, &sigs, NULL); \
- } while (0)
-
- #define IRQ_SAVE_DISABLE(old_sigs) \
- do { \
- sigset_t sigs; \
- sigemptyset(&sigs); \
- sigprocmask(SIG_BLOCK, &sigs, &old_sigs); \
- } while (0)
-
- #define IRQ_RESTORE(old_sigs) \
- do { \
- sigprocmask(SIG_SETMASK, &old_sigs, NULL); \
- } while (0)
-#else
- #define OS_UNIX 0
- #define OS_POSIX 0
-#endif
-
-#ifdef __linux__
- #define OS_LINUX 1
-#else
- #define OS_LINUX 0
-#endif
-
-#if defined(__APPLE__) && defined(__MACH__)
- #define OS_DARWIN 1
-#else
- #define OS_DARWIN 0
-#endif
-
-/*
- * We want Qt and other frameworks to look like OSes because you would
- * tipically want their portable abstractions if you're using one of these.
- */
-#if defined(_QT)
- #define OS_QT 1
- #undef OS_ID
- #define OS_ID qt
-#else
- #define OS_QT 0
-#endif
-
-/*
- * Summarize hosted environments as OS_HOSTED and embedded
- * environment with OS_EMBEDDED.
- */
-#if OS_WIN32 || OS_UNIX
- #define OS_HOSTED 1
- #define OS_EMBEDDED 0
-#else
- #define OS_HOSTED 0
- #define OS_EMBEDDED 1
-
- /* Embedded environments fall back to CPU-specific code. */
- #define OS_ID CPU_ID
-#endif
-
-/* Self-check for the detection */
-#if !defined(OS_ID)
- #error OS_ID not defined
-#endif
-#if OS_HOSTED && OS_EMBEDDED
- #error Both hosted and embedded OS environment
-#endif
-#if !OS_HOSTED && !OS_EMBEDDED
- #error Neither hosted nor embedded OS environment
-#endif
-
-#endif /* DEVLIB_OS_H */