]> git.lizzy.rs Git - dragonfireclient.git/blobdiff - src/porting.h
Fix macro ARRAYSIZE name collision on windows
[dragonfireclient.git] / src / porting.h
index 0062c11f3f426b9820e59bfedc2329f1f7cd2db8..427fce129f31b610e962df63825935732d7040be 100644 (file)
@@ -1,6 +1,6 @@
 /*
-Minetest-c55
-Copyright (C) 2010 celeron55, Perttu Ahola <celeron55@gmail.com>
+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
@@ -24,10 +24,20 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 #ifndef PORTING_HEADER
 #define PORTING_HEADER
 
+#ifdef _WIN32
+       #ifdef _WIN32_WINNT
+               #undef _WIN32_WINNT
+       #endif
+       #define _WIN32_WINNT 0x0501 // We need to do this before any other headers 
+               // because those might include sdkddkver.h which defines _WIN32_WINNT if not already set
+#endif
+
 #include <string>
 #include "irrlichttypes.h" // u32
 #include "debug.h"
 #include "constants.h"
+#include "gettime.h"
+#include "threads.h"
 
 #ifdef _MSC_VER
        #define SWPRINTF_CHARSTRING L"%S"
@@ -42,17 +52,71 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 #ifdef _WIN32
        #include <windows.h>
        
-       #define ALIGNOF(x) __alignof(x)
        #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)
+       #define strncasecmp(x, y, n) strnicmp(x, y, n)
 #else
-       #include <unistd.h>
-       
        #define ALIGNOF(x) __alignof__(x)
-       #define sleep_ms(x) usleep(x*1000)
+#endif
+
+#ifdef __MINGW32__
+       #define strtok_r(x, y, z) mystrtok_r(x, y, z)
+#endif
+
+// strlcpy is missing from glibc.  thanks a lot, drepper.
+// strlcpy is also missing from AIX and HP-UX because they aim to be weird.
+// We can't simply alias strlcpy to MSVC's strcpy_s, since strcpy_s by
+// default raises an assertion error and aborts the program if the buffer is
+// too small.
+#if defined(__FreeBSD__) || defined(__NetBSD__)    || \
+       defined(__OpenBSD__) || defined(__DragonFly__) || \
+       defined(__APPLE__)   ||                           \
+       defined(__sun)       || defined(sun)           || \
+       defined(__QNX__)     || defined(__QNXNTO__)
+       #define HAVE_STRLCPY
+#endif
+
+// So we need to define our own.
+#ifndef HAVE_STRLCPY
+       #define strlcpy(d, s, n) mystrlcpy(d, s, n)
 #endif
 
 #define PADDING(x, y) ((ALIGNOF(y) - ((uintptr_t)(x) & (ALIGNOF(y) - 1))) & (ALIGNOF(y) - 1))
@@ -93,25 +157,96 @@ std::string getDataPath(const char *subpath);
 */
 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);
+
+/*
+       Return system information
+       e.g. "Linux/3.12.7 x86_64"
+*/
+std::string get_sysinfo();
+
 /*
        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()
        {
@@ -121,6 +256,68 @@ void initializePaths();
        }*/
 #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;
+}
+
+#if defined(linux) || defined(__linux)
+       #include <sys/prctl.h>
+
+       inline void setThreadName(const char *name) {
+               /* It would be cleaner to do this with pthread_setname_np,
+                * which was added to glibc in version 2.12, but some major
+                * distributions are still runing 2.11 and previous versions.
+                */
+               prctl(PR_SET_NAME, name);
+       }
+#elif defined(__FreeBSD__) || defined(__NetBSD__) || defined(__OpenBSD__)
+       #include <pthread.h>
+
+       inline void setThreadName(const char *name) {
+               pthread_set_name_np(pthread_self(), name);
+       }
+#elif defined(_MSC_VER)
+       typedef struct tagTHREADNAME_INFO {
+               DWORD dwType; // must be 0x1000
+               LPCSTR szName; // pointer to name (in user addr space)
+               DWORD dwThreadID; // thread ID (-1=caller thread)
+               DWORD dwFlags; // reserved for future use, must be zero
+       } THREADNAME_INFO;
+
+       inline void setThreadName(const char *name) {
+               THREADNAME_INFO info;
+               info.dwType = 0x1000;
+               info.szName = name;
+               info.dwThreadID = -1;
+               info.dwFlags = 0;
+               __try {
+                       RaiseException(0x406D1388, 0, sizeof(info) / sizeof(DWORD), (DWORD *) &info);
+               } __except (EXCEPTION_CONTINUE_EXECUTION) {}
+       }
+#elif defined(__APPLE__)
+       #include <pthread.h>
+
+       inline void setThreadName(const char *name) {
+               pthread_setname_np(name);
+       }
+#elif defined(_WIN32)
+       inline void setThreadName(const char* name) {}
+#else
+       #warning "Unrecognized platform, thread names will not be available."
+       inline void setThreadName(const char* name) {}
+#endif
+
 } // namespace porting
 
 #endif // PORTING_HEADER