Merge remote branch 'origin/master'

[minetest.git] / src / porting.h

diff --git a/src/porting.h b/src/porting.h
index 441a57d779b5bd43f1d45cf44db0f986de17a1a5..d7d1073406e69a558d1452aa29b1e42e5178e374 100644 (file)
--- a/src/porting.h
+++ b/src/porting.h
@@ -1,18 +1,18 @@
 /*
-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 General Public License as published by
-the Free Software Foundation; either version 2 of the License, or
+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 General Public License for more details.
+GNU Lesser General Public License for more details.
 
-You should have received a copy of the GNU General Public License along
+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.
 */
@@ -25,8 +25,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 #define PORTING_HEADER
 
 #include <string>
-// Included for u64 and such
-#include "common_irrlicht.h"
+#include "irrlichttypes.h" // u32
 #include "debug.h"
 #include "constants.h"
 
@@ -36,44 +35,117 @@ with this program; if not, write to the Free Software Foundation, Inc.,
        #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 0x0500
+       #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_data;
+extern std::string path_share;
 
 /*
        Directory for storing user data. Examples:
-       Windows: "C:\Documents and Settings\user\Application Data\<APPNAME>"
-       Linux: "~/.<APPNAME>"
-       Mac: "~/Library/Application Support/<APPNAME>"
+       Windows: "C:\Documents and Settings\user\Application Data\<PROJECT_NAME>"
+       Linux: "~/.<PROJECT_NAME>"
+       Mac: "~/Library/Application Support/<PROJECT_NAME>"
 */
-extern std::string path_userdata;
+extern std::string path_user;
 
 /*
        Get full path of stuff in data directory.
        Example: "stone.png" -> "../data/stone.png"
 */
-inline std::string getDataPath(const char *subpath)
-{
-       return path_data + "/" + subpath;
-}
+std::string getDataPath(const char *subpath);
 
 /*
-       Initialize path_data and path_userdata.
+       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.
@@ -86,13 +158,20 @@ void initializePaths();
                return GetTickCount();
        }
 #else // Posix
-       #include <sys/timeb.h>
+       #include <sys/time.h>
+       inline u32 getTimeMs()
+       {
+               struct timeval tv;
+               gettimeofday(&tv, NULL);
+               return tv.tv_sec * 1000 + tv.tv_usec / 1000;
+       }
+       /*#include <sys/timeb.h>
        inline u32 getTimeMs()
        {
                struct timeb tb;
                ftime(&tb);
                return tb.time * 1000 + tb.millitm;
-       }
+       }*/
 #endif
 
 } // namespace porting