mirror of
https://github.com/minetest/minetest.git
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435 lines
10 KiB
C++
435 lines
10 KiB
C++
/*
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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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#ifndef PORTING_HEADER
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#define PORTING_HEADER
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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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#include "threads.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 <stdint.h> //for uintptr_t
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#if (defined(linux) || defined(__linux) || defined(__GNU__)) && !defined(_GNU_SOURCE)
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#define _GNU_SOURCE
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#endif
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#include <sched.h>
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#ifdef __FreeBSD__
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#include <pthread_np.h>
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typedef cpuset_t cpu_set_t;
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#elif defined(__sun) || defined(sun)
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#include <sys/types.h>
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#include <sys/processor.h>
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#elif defined(_AIX)
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#include <sys/processor.h>
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#elif __APPLE__
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#include <mach/mach_init.h>
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#include <mach/thread_policy.h>
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#endif
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#define sleep_ms(x) usleep(x*1000)
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#define THREAD_PRIORITY_LOWEST 0
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#define THREAD_PRIORITY_BELOW_NORMAL 1
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#define THREAD_PRIORITY_NORMAL 2
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#define THREAD_PRIORITY_ABOVE_NORMAL 3
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#define THREAD_PRIORITY_HIGHEST 4
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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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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(void);
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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(void);
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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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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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Initialize path_share and path_user.
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*/
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void initializePaths();
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/*
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Get number of online processors in the system.
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*/
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int getNumberOfProcessors();
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/*
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Set a thread's affinity to a particular processor.
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*/
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bool threadBindToProcessor(threadid_t tid, int pnumber);
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/*
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Set a thread's priority.
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*/
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bool threadSetPriority(threadid_t tid, int prio);
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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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void initIrrlicht(irr::IrrlichtDevice * );
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/*
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Resolution is 10-20ms.
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Remember to check for overflows.
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Overflow can occur at any value higher than 10000000.
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*/
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#ifdef _WIN32 // Windows
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#ifndef _WIN32_WINNT
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#define _WIN32_WINNT 0x0501
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#endif
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#include <windows.h>
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inline u32 getTimeS()
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{
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return GetTickCount() / 1000;
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}
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inline u32 getTimeMs()
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{
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return GetTickCount();
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}
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inline u32 getTimeUs()
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{
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LARGE_INTEGER freq, t;
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QueryPerformanceFrequency(&freq);
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QueryPerformanceCounter(&t);
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return (double)(t.QuadPart) / ((double)(freq.QuadPart) / 1000000.0);
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}
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inline u32 getTimeNs()
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{
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LARGE_INTEGER freq, t;
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QueryPerformanceFrequency(&freq);
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QueryPerformanceCounter(&t);
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return (double)(t.QuadPart) / ((double)(freq.QuadPart) / 1000000000.0);
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}
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#else // Posix
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#include <sys/time.h>
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#include <time.h>
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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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inline u32 getTimeS()
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{
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struct timeval tv;
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gettimeofday(&tv, NULL);
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return tv.tv_sec;
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}
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inline u32 getTimeMs()
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{
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struct timeval tv;
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gettimeofday(&tv, NULL);
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return tv.tv_sec * 1000 + tv.tv_usec / 1000;
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}
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inline u32 getTimeUs()
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{
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struct timeval tv;
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gettimeofday(&tv, NULL);
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return tv.tv_sec * 1000000 + tv.tv_usec;
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}
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inline u32 getTimeNs()
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{
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struct timespec ts;
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// from http://stackoverflow.com/questions/5167269/clock-gettime-alternative-in-mac-os-x
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#if defined(__MACH__) && defined(__APPLE__) // 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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#else
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clock_gettime(CLOCK_REALTIME, &ts);
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#endif
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return ts.tv_sec * 1000000000 + ts.tv_nsec;
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}
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/*#include <sys/timeb.h>
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inline u32 getTimeMs()
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{
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struct timeb tb;
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ftime(&tb);
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return tb.time * 1000 + tb.millitm;
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}*/
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#endif
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inline u32 getTime(TimePrecision prec)
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{
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switch (prec) {
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case PRECISION_SECONDS:
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return getTimeS();
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case PRECISION_MILLI:
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return getTimeMs();
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case PRECISION_MICRO:
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return getTimeUs();
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case PRECISION_NANO:
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return getTimeNs();
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}
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return 0;
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}
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/**
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* Delta calculation function taking two 32bit arguments.
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* @param old_time_ms old time for delta calculation (order is relevant!)
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* @param new_time_ms new time for delta calculation (order is relevant!)
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* @return positive 32bit delta value
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*/
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inline u32 getDeltaMs(u32 old_time_ms, u32 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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} else {
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return (old_time_ms - new_time_ms);
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}
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}
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#if defined(linux) || defined(__linux)
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#include <sys/prctl.h>
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inline void setThreadName(const char *name) {
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/* It would be cleaner to do this with pthread_setname_np,
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* which was added to glibc in version 2.12, but some major
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* distributions are still runing 2.11 and previous versions.
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*/
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prctl(PR_SET_NAME, name);
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}
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#elif defined(__FreeBSD__) || defined(__OpenBSD__)
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#include <pthread.h>
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#include <pthread_np.h>
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inline void setThreadName(const char *name) {
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pthread_set_name_np(pthread_self(), name);
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}
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#elif defined(__NetBSD__)
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#include <pthread.h>
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inline void setThreadName(const char *name) {
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pthread_setname_np(pthread_self(), name);
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}
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#elif defined(_MSC_VER)
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typedef struct tagTHREADNAME_INFO {
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DWORD dwType; // must be 0x1000
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LPCSTR szName; // pointer to name (in user addr space)
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DWORD dwThreadID; // thread ID (-1=caller thread)
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DWORD dwFlags; // reserved for future use, must be zero
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} THREADNAME_INFO;
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inline void setThreadName(const char *name) {
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THREADNAME_INFO info;
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info.dwType = 0x1000;
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info.szName = name;
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info.dwThreadID = -1;
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info.dwFlags = 0;
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__try {
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RaiseException(0x406D1388, 0, sizeof(info) / sizeof(DWORD), (ULONG_PTR *) &info);
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} __except (EXCEPTION_CONTINUE_EXECUTION) {}
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}
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#elif defined(__APPLE__)
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#include <pthread.h>
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inline void setThreadName(const char *name) {
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pthread_setname_np(name);
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}
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#elif defined(_WIN32) || defined(__GNU__)
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inline void setThreadName(const char* name) {}
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#else
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#warning "Unrecognized platform, thread names will not be available."
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inline void setThreadName(const char* name) {}
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#endif
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#ifndef SERVER
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float getDisplayDensity();
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v2u32 getDisplaySize();
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v2u32 getWindowSize();
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std::vector<core::vector3d<u32> > getSupportedVideoModes();
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std::vector<irr::video::E_DRIVER_TYPE> getSupportedVideoDrivers();
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const char *getVideoDriverName(irr::video::E_DRIVER_TYPE type);
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const char *getVideoDriverFriendlyName(irr::video::E_DRIVER_TYPE type);
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#endif
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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) || defined(__linux) || 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(__SVR4)
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"Solaris"
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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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void setXorgClassHint(const video::SExposedVideoData &video_data,
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const std::string &name);
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// This only needs to be called at the start of execution, since all future
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// threads in the process inherit this exception handler
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void setWin32ExceptionHandler();
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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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#endif // PORTING_HEADER
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