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/*
Minetest
Copyright (C) 2013 celeron55, Perttu Ahola <celeron55@gmail.com>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 2.1 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License along
with this program; if not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
/*
Random portability stuff
*/
#ifndef PORTING_HEADER
#define PORTING_HEADER
#include <string>
#include "irrlichttypes.h" // u32
#include "debug.h"
#include "constants.h"
#include "gettime.h"
#ifdef _MSC_VER
#define SWPRINTF_CHARSTRING L"%S"
#else
#define SWPRINTF_CHARSTRING L"%s"
#endif
//currently not needed
//template<typename T> struct alignment_trick { char c; T member; };
//#define ALIGNOF(type) offsetof (alignment_trick<type>, member)
#ifdef _WIN32
#ifndef _WIN32_WINNT
#define _WIN32_WINNT 0x0501
#endif
#include <windows.h>
#define sleep_ms(x) Sleep(x)
#else
#include <unistd.h>
#include <stdint.h> //for uintptr_t
#if (defined(linux) || defined(__linux)) && !defined(_GNU_SOURCE)
#define _GNU_SOURCE
#endif
#include <sched.h>
#ifdef __FreeBSD__
#include <pthread_np.h>
typedef cpuset_t cpu_set_t;
#elif defined(__sun) || defined(sun)
#include <sys/types.h>
#include <sys/processor.h>
#elif defined(_AIX)
#include <sys/processor.h>
#elif __APPLE__
#include <mach/mach_init.h>
#include <mach/thread_policy.h>
#endif
#define sleep_ms(x) usleep(x*1000)
#define THREAD_PRIORITY_LOWEST 0
#define THREAD_PRIORITY_BELOW_NORMAL 1
#define THREAD_PRIORITY_NORMAL 2
#define THREAD_PRIORITY_ABOVE_NORMAL 3
#define THREAD_PRIORITY_HIGHEST 4
#endif
#ifdef _MSC_VER
#define ALIGNOF(x) __alignof(x)
#define strtok_r(x, y, z) strtok_s(x, y, z)
#define strtof(x, y) (float)strtod(x, y)
#define strtoll(x, y, z) _strtoi64(x, y, z)
#define strtoull(x, y, z) _strtoui64(x, y, z)
#define strcasecmp(x, y) stricmp(x, y)
#else
#define ALIGNOF(x) __alignof__(x)
#endif
#ifdef __MINGW32__
#define strtok_r(x, y, z) mystrtok_r(x, y, z)
#endif
#define PADDING(x, y) ((ALIGNOF(y) - ((uintptr_t)(x) & (ALIGNOF(y) - 1))) & (ALIGNOF(y) - 1))
namespace porting
{
/*
Signal handler (grabs Ctrl-C on POSIX systems)
*/
void signal_handler_init(void);
// Returns a pointer to a bool.
// When the bool is true, program should quit.
bool * signal_handler_killstatus(void);
/*
Path of static data directory.
*/
extern std::string path_share;
/*
Directory for storing user data. Examples:
Windows: "C:\Documents and Settings\user\Application Data\<PROJECT_NAME>"
Linux: "~/.<PROJECT_NAME>"
Mac: "~/Library/Application Support/<PROJECT_NAME>"
*/
extern std::string path_user;
/*
Get full path of stuff in data directory.
Example: "stone.png" -> "../data/stone.png"
*/
std::string getDataPath(const char *subpath);
/*
Initialize path_share and path_user.
*/
void initializePaths();
/*
Get number of online processors in the system.
*/
int getNumberOfProcessors();
/*
Set a thread's affinity to a particular processor.
*/
bool threadBindToProcessor(threadid_t tid, int pnumber);
/*
Set a thread's priority.
*/
bool threadSetPriority(threadid_t tid, int prio);
/*
Resolution is 10-20ms.
Remember to check for overflows.
Overflow can occur at any value higher than 10000000.
*/
#ifdef _WIN32 // Windows
#ifndef _WIN32_WINNT
#define _WIN32_WINNT 0x0501
#endif
#include <windows.h>
inline u32 getTimeS()
{
return GetTickCount() / 1000;
}
inline u32 getTimeMs()
{
return GetTickCount();
}
inline u32 getTimeUs()
{
LARGE_INTEGER freq, t;
QueryPerformanceFrequency(&freq);
QueryPerformanceCounter(&t);
return (double)(t.QuadPart) / ((double)(freq.QuadPart) / 1000000.0);
}
inline u32 getTimeNs()
{
LARGE_INTEGER freq, t;
QueryPerformanceFrequency(&freq);
QueryPerformanceCounter(&t);
return (double)(t.QuadPart) / ((double)(freq.QuadPart) / 1000000000.0);
}
#else // Posix
#include <sys/time.h>
#include <time.h>
inline u32 getTimeS()
{
struct timeval tv;
gettimeofday(&tv, NULL);
return tv.tv_sec;
}
inline u32 getTimeMs()
{
struct timeval tv;
gettimeofday(&tv, NULL);
return tv.tv_sec * 1000 + tv.tv_usec / 1000;
}
inline u32 getTimeUs()
{
struct timeval tv;
gettimeofday(&tv, NULL);
return tv.tv_sec * 1000000 + tv.tv_usec;
}
inline u32 getTimeNs()
{
struct timespec ts;
clock_gettime(CLOCK_REALTIME, &ts);
return ts.tv_sec * 1000000000 + ts.tv_nsec;
}
/*#include <sys/timeb.h>
inline u32 getTimeMs()
{
struct timeb tb;
ftime(&tb);
return tb.time * 1000 + tb.millitm;
}*/
#endif
inline u32 getTime(TimePrecision prec)
{
switch (prec) {
case PRECISION_SECONDS:
return getTimeS();
case PRECISION_MILLI:
return getTimeMs();
case PRECISION_MICRO:
return getTimeUs();
case PRECISION_NANO:
return getTimeNs();
}
return 0;
}
} // namespace porting
#endif // PORTING_HEADER
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