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src/porting.h
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359
src/porting.h
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/*
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Minetest
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Copyright (C) 2013 celeron55, Perttu Ahola <celeron55@gmail.com>
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation; either version 2.1 of the License, or
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(at your option) any later version.
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This program 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
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GNU Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License along
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with this program; if not, write to the Free Software Foundation, Inc.,
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51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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/*
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Random portability stuff
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*/
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#pragma once
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#ifdef _WIN32
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#ifdef _WIN32_WINNT
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#undef _WIN32_WINNT
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#endif
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#define _WIN32_WINNT 0x0501 // We need to do this before any other headers
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// because those might include sdkddkver.h which defines _WIN32_WINNT if not already set
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#endif
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#include <string>
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#include <vector>
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#include "irrlicht.h"
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#include "irrlichttypes.h" // u32
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#include "irrlichttypes_extrabloated.h"
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#include "debug.h"
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#include "constants.h"
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#include "gettime.h"
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#ifdef _MSC_VER
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#define SWPRINTF_CHARSTRING L"%S"
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#else
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#define SWPRINTF_CHARSTRING L"%s"
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#endif
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//currently not needed
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//template<typename T> struct alignment_trick { char c; T member; };
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//#define ALIGNOF(type) offsetof (alignment_trick<type>, member)
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#ifdef _WIN32
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#include <windows.h>
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#define sleep_ms(x) Sleep(x)
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#else
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#include <unistd.h>
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#include <cstdint> //for uintptr_t
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// Use standard Posix macro for Linux
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#if (defined(linux) || defined(__linux)) && !defined(__linux__)
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#define __linux__
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#endif
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#if (defined(__linux__) || defined(__GNU__)) && !defined(_GNU_SOURCE)
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#define _GNU_SOURCE
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#endif
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#define sleep_ms(x) usleep(x*1000)
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#endif
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#ifdef _MSC_VER
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#define ALIGNOF(x) __alignof(x)
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#define strtok_r(x, y, z) strtok_s(x, y, z)
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#define strtof(x, y) (float)strtod(x, y)
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#define strtoll(x, y, z) _strtoi64(x, y, z)
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#define strtoull(x, y, z) _strtoui64(x, y, z)
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#define strcasecmp(x, y) stricmp(x, y)
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#define strncasecmp(x, y, n) strnicmp(x, y, n)
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#else
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#define ALIGNOF(x) __alignof__(x)
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#endif
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#ifdef __MINGW32__
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#define strtok_r(x, y, z) mystrtok_r(x, y, z)
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#endif
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// strlcpy is missing from glibc. thanks a lot, drepper.
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// strlcpy is also missing from AIX and HP-UX because they aim to be weird.
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// We can't simply alias strlcpy to MSVC's strcpy_s, since strcpy_s by
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// default raises an assertion error and aborts the program if the buffer is
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// too small.
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#if defined(__FreeBSD__) || defined(__NetBSD__) || \
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defined(__OpenBSD__) || defined(__DragonFly__) || \
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defined(__APPLE__) || \
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defined(__sun) || defined(sun) || \
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defined(__QNX__) || defined(__QNXNTO__)
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#define HAVE_STRLCPY
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#endif
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// So we need to define our own.
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#ifndef HAVE_STRLCPY
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#define strlcpy(d, s, n) mystrlcpy(d, s, n)
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#endif
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#define PADDING(x, y) ((ALIGNOF(y) - ((uintptr_t)(x) & (ALIGNOF(y) - 1))) & (ALIGNOF(y) - 1))
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#if defined(__APPLE__)
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#include <mach-o/dyld.h>
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#include <CoreFoundation/CoreFoundation.h>
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#endif
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#ifndef _WIN32 // Posix
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#include <sys/time.h>
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#include <ctime>
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#if defined(__MACH__) && defined(__APPLE__)
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#include <mach/clock.h>
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#include <mach/mach.h>
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#endif
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#endif
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namespace porting
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{
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/*
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Signal handler (grabs Ctrl-C on POSIX systems)
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*/
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void signal_handler_init();
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// Returns a pointer to a bool.
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// When the bool is true, program should quit.
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bool * signal_handler_killstatus();
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/*
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Path of static data directory.
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*/
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extern std::string path_share;
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/*
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Directory for storing user data. Examples:
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Windows: "C:\Documents and Settings\user\Application Data\<PROJECT_NAME>"
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Linux: "~/.<PROJECT_NAME>"
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Mac: "~/Library/Application Support/<PROJECT_NAME>"
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*/
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extern std::string path_user;
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/*
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Path to gettext locale files
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*/
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extern std::string path_locale;
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/*
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Path to directory for storing caches.
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*/
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extern std::string path_cache;
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/*
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Get full path of stuff in data directory.
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Example: "stone.png" -> "../data/stone.png"
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*/
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std::string getDataPath(const char *subpath);
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/*
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Move cache folder from path_user to the
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system cache location if possible.
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*/
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void migrateCachePath();
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/*
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Initialize path_*.
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*/
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void initializePaths();
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/*
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Return system information
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e.g. "Linux/3.12.7 x86_64"
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*/
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std::string get_sysinfo();
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// Monotonic counter getters.
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#ifdef _WIN32 // Windows
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extern double perf_freq;
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inline u64 os_get_time(double mult)
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{
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LARGE_INTEGER t;
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QueryPerformanceCounter(&t);
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return static_cast<double>(t.QuadPart) / (perf_freq / mult);
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}
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// Resolution is <1us.
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inline u64 getTimeS() { return os_get_time(1); }
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inline u64 getTimeMs() { return os_get_time(1000); }
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inline u64 getTimeUs() { return os_get_time(1000*1000); }
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inline u64 getTimeNs() { return os_get_time(1000*1000*1000); }
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#else // Posix
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inline void os_get_clock(struct timespec *ts)
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{
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#if defined(__MACH__) && defined(__APPLE__)
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// From http://stackoverflow.com/questions/5167269/clock-gettime-alternative-in-mac-os-x
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// OS X does not have clock_gettime, use clock_get_time
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clock_serv_t cclock;
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mach_timespec_t mts;
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host_get_clock_service(mach_host_self(), CALENDAR_CLOCK, &cclock);
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clock_get_time(cclock, &mts);
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mach_port_deallocate(mach_task_self(), cclock);
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ts->tv_sec = mts.tv_sec;
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ts->tv_nsec = mts.tv_nsec;
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#elif defined(CLOCK_MONOTONIC_RAW)
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clock_gettime(CLOCK_MONOTONIC_RAW, ts);
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#elif defined(_POSIX_MONOTONIC_CLOCK)
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clock_gettime(CLOCK_MONOTONIC, ts);
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#else
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struct timeval tv;
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gettimeofday(&tv, NULL);
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TIMEVAL_TO_TIMESPEC(&tv, ts);
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#endif
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}
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inline u64 getTimeS()
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{
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struct timespec ts;
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os_get_clock(&ts);
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return ts.tv_sec;
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}
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inline u64 getTimeMs()
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{
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struct timespec ts;
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os_get_clock(&ts);
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return ((u64) ts.tv_sec) * 1000LL + ((u64) ts.tv_nsec) / 1000000LL;
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}
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inline u64 getTimeUs()
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{
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struct timespec ts;
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os_get_clock(&ts);
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return ((u64) ts.tv_sec) * 1000000LL + ((u64) ts.tv_nsec) / 1000LL;
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}
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inline u64 getTimeNs()
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{
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struct timespec ts;
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os_get_clock(&ts);
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return ((u64) ts.tv_sec) * 1000000000LL + ((u64) ts.tv_nsec);
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}
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#endif
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inline u64 getTime(TimePrecision prec)
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{
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switch (prec) {
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case PRECISION_SECONDS: return getTimeS();
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case PRECISION_MILLI: return getTimeMs();
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case PRECISION_MICRO: return getTimeUs();
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case PRECISION_NANO: return getTimeNs();
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}
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FATAL_ERROR("Called getTime with invalid time precision");
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}
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/**
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* Delta calculation function arguments.
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* @param old_time_ms old time for delta calculation
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* @param new_time_ms new time for delta calculation
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* @return positive delta value
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*/
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inline u64 getDeltaMs(u64 old_time_ms, u64 new_time_ms)
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{
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if (new_time_ms >= old_time_ms) {
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return (new_time_ms - old_time_ms);
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}
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return (old_time_ms - new_time_ms);
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}
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inline const char *getPlatformName()
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{
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return
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#if defined(ANDROID)
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"Android"
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#elif defined(__linux__)
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"Linux"
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#elif defined(_WIN32) || defined(_WIN64)
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"Windows"
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#elif defined(__DragonFly__) || defined(__FreeBSD__) || \
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defined(__NetBSD__) || defined(__OpenBSD__)
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"BSD"
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#elif defined(__APPLE__) && defined(__MACH__)
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#if TARGET_OS_MAC
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"OSX"
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#elif TARGET_OS_IPHONE
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"iOS"
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#else
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"Apple"
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#endif
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#elif defined(_AIX)
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"AIX"
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#elif defined(__hpux)
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"HP-UX"
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#elif defined(__sun) || defined(sun)
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#if defined(__SVR4)
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"Solaris"
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#else
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"SunOS"
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#endif
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#elif defined(__HAIKU__)
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"Haiku"
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#elif defined(__CYGWIN__)
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"Cygwin"
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#elif defined(__unix__) || defined(__unix)
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#if defined(_POSIX_VERSION)
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"Posix"
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#else
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"Unix"
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#endif
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#else
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"?"
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#endif
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;
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}
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bool secure_rand_fill_buf(void *buf, size_t len);
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// This attaches to the parents process console, or creates a new one if it doesnt exist.
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void attachOrCreateConsole();
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int mt_snprintf(char *buf, const size_t buf_size, const char *fmt, ...);
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/**
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* Opens URL in default web browser
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*
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* Must begin with http:// or https://, and not contain any new lines
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*
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* @param url The URL
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* @return true on success, false on failure
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*/
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bool open_url(const std::string &url);
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/**
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* Opens a directory in the default file manager
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*
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* The directory must exist.
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*
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* @param path Path to directory
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* @return true on success, false on failure
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*/
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bool open_directory(const std::string &path);
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} // namespace porting
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#ifdef __ANDROID__
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#include "porting_android.h"
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#endif
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