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/*
* stdinc.h
* pull in standard headers (including portability hacks)
*
* Copyright (c) 2012 pkgconf authors (see AUTHORS).
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* This software is provided 'as is' and without any warranty, express or
* implied. In no event shall the authors be liable for any damages arising
* from the use of this software.
*/
#ifndef __STDINC_H
#define __STDINC_H
#include <ctype.h>
#include <stdio.h>
#include <stdlib.h>
#include <stddef.h>
#include <stdbool.h>
#include <stdarg.h>
#include <string.h>
#include <sys/types.h>
#include <stdint.h>
#ifdef _WIN32
# define WIN32_LEAN_AND_MEAN
# include <windows.h>
# include <malloc.h>
# define PATH_DEV_NULL "nul"
/*
* Fix MinGW GCC print format warnings (issue #142 is reported).
*/
# ifdef _WIN64
# define SIZE_FMT_SPECIFIER "%I64u"
# else
# define SIZE_FMT_SPECIFIER "%u"
# endif
# ifndef ssize_t
# ifndef __MINGW32__
# include <BaseTsd.h>
# else
# include <basetsd.h>
# endif
# define ssize_t SSIZE_T
# endif
# ifndef __MINGW32__
# include "win-dirent.h"
# else
# include <dirent.h>
# endif
#else
# define PATH_DEV_NULL "/dev/null"
# define SIZE_FMT_SPECIFIER "%zu"
# include <dirent.h>
# include <unistd.h>
#endif
/*
* Stack-allocated buffer sizes.
*
* Original libpkgconf package uses PKGCONF_BUFSIZE size for all
* stack-allocated buffers, imposing high requirements for the thread stack
* size. This make it unusable on MacOS (as of 10.12) for non-main threads that
* are created with the default 512K stack size. In particular that make it
* impossible to use libpkgconf API in threads created with C++11 std::thread
* class, that doesn't allow stack size customization.
*
* As an example, using pkgconf_pkg_find() for quite a simple .pc file consumes
* at least 460K. The measurment was made as a differece between addresses of 2
* stack-allocated variables: one was defined right before the function call,
* another right after the buffer definition in pkgconf_tuple_parse() function.
*
* To relax the stack size requirements we will minimize the usage of
* PKGCONF_BUFSIZE, using the smaller PKGCONF_SBUFSIZE instead, wherever it is
* possible. The PKGCONF_SBUFSIZE is selected in such a way that a buffer of
* this size can accommodate the file system path, the value fragment, the
* variable name or the package dependency specification. The latest implies it
* also fits for the package key or the package version. This optimization
* decreased the stack usage for the described use case to 140K.
*
* Note that we moved PKGCONF_BUFSIZE definition from libpkgconf.h.
*/
#define PKGCONF_BUFSIZE (65535)
#ifdef _WIN32
# define PKGCONF_SBUFSIZE (_MAX_PATH + 1024)
#else
# include <limits.h>
# ifdef PATH_MAX
# define PKGCONF_SBUFSIZE (PATH_MAX + 1024)
# else
# define PKGCONF_SBUFSIZE (4096 + 1024)
# endif
#endif
#endif
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