sirplatform.h

/**
 * @file sirplatform.h
 * @brief Platform specific configuration.
 *
 * This file and accompanying source code originated from <https://github.com/aremmell/libsir>.
 * If you obtained it elsewhere, all bets are off.
 *
 * @author Ryan M. Lederman <lederman@gmail.com>
 * @copyright
 *
 * The MIT License (MIT)
 *
 * Copyright (c) 2018 Ryan M. Lederman
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy of
 * this software and associated documentation files (the "Software"), to deal in
 * the Software without restriction, including without limitation the rights to
 * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
 * the Software, and to permit persons to whom the Software is furnished to do so,
 * subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in all
 * copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
 * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
 * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
 * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 */
#ifndef _SIR_PLATFORM_H_INCLUDED
#define _SIR_PLATFORM_H_INCLUDED

#if defined(__APPLE__) && defined(__MACH__)
#   define __MACOS__
#   define _DARWIN_C_SOURCE
#elif defined(_WIN32)
#   define _WIN32_WINNT 0x0600
#elif defined(__FreeBSD__) && !defined(_DEFAULT_SOURCE)
#   define _DEFAULT_SOURCE
#else
#   if defined(__GNUC__) && !defined(_GNU_SOURCE)
#       define _GNU_SOURCE
#   endif
#   if !defined(_POSIX_C_SOURCE)
#       define _POSIX_C_SOURCE 200809L
#   endif
#   if !defined(_DEFAULT_SOURCE)
#       define _DEFAULT_SOURCE
#   endif
#endif

#include <assert.h>
#include <errno.h>
#include <stdarg.h>
#include <stdbool.h>
#include <stdint.h>
#include <inttypes.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <time.h>

#if !defined(_WIN32)
#include <pthread.h>
#if defined(__FreeBSD__)
#include <pthread_np.h>
#endif
#include <sys/syscall.h>
#include <syslog.h>
#include <unistd.h>
#include <strings.h>

#if defined(__linux__)
#   include <linux/limits.h>
#endif

#if defined(PATH_MAX)
#   define SIR_MAXPATH PATH_MAX
#endif

#if _POSIX_TIMERS > 0
#   define SIR_MSEC_TIMER
#   define SIR_MSEC_POSIX
#else
#   undef SIR_MSEC_TIMER
#endif

/** The mutex type. */
typedef pthread_mutex_t sirmutex_t;

/** The one-time type. */
typedef pthread_once_t sironce_t;

/** The one-time execution function type. */
typedef void (*sir_once_fn)(void);

/** The one-time initializer. */
#define SIR_ONCE_INIT PTHREAD_ONCE_INIT
#else
#define WIN32_LEAN_AND_MEAN

#include <io.h>
#include <synchapi.h>
#include <windows.h>

#define SIR_MAXPATH MAX_PATH
#define SIR_NO_SYSLOG
#define SIR_MSEC_TIMER
#define SIR_MSEC_WIN32

/** The mutex type. */
typedef HANDLE sirmutex_t;

/** The one-time type. */
typedef INIT_ONCE sironce_t;

/** Process/thread ID. */
typedef int pid_t;

/** The one-time execution function type. */
typedef BOOL(CALLBACK* sir_once_fn)(PINIT_ONCE, PVOID, PVOID*);

/** The one-time initializer. */
#define SIR_ONCE_INIT INIT_ONCE_STATIC_INIT
#endif

#if !defined(thread_local)
#   if __STDC_VERSION__ >= 201112 && !defined(__STDC_NO_THREADS__)
#       define thread_local _Thread_local
#   elif defined(_WIN32)
#       define thread_local __declspec(thread)
#   elif defined(__GNUC__)
#       define thread_local __thread
#   else
#       error "Unable to configure thread_local!"
#   endif
#endif

/** A sensible (?) constraint for the limit of a file's path. Note that this value
 * is only used in the absence of PATH_MAX (or MAX_PATH on windows). */
#if !defined(SIR_MAXPATH)
#   define SIR_MAXPATH 65535
#endif

#endif /* !_SIR_PLATFORM_H_INCLUDED */