public static void sched_setaffinity(final BitSet affinity) {
final CLibrary lib = CLibrary.INSTANCE;
final cpu_set_t cpuset = new cpu_set_t();
final int size =
version.isSameOrNewer(VERSION_2_6) ? cpu_set_t.SIZE_OF_CPU_SET_T : NativeLong.SIZE;
final long[] bits = affinity.toLongArray();
for (int i = 0; i < bits.length; i++) {
if (Platform.is64Bit()) {
cpuset.__bits[i].setValue(bits[i]);
} else {
cpuset.__bits[i * 2].setValue(bits[i] & 0xFFFFFFFFL);
cpuset.__bits[i * 2 + 1].setValue((bits[i] >>> 32) & 0xFFFFFFFFL);
}
}
try {
if (lib.sched_setaffinity(0, size, cpuset) != 0) {
throw new IllegalStateException(
"sched_setaffinity(0, "
+ size
+ ", 0x"
+ Utilities.toHexString(affinity)
+ ") failed; errno="
+ Native.getLastError());
}
} catch (LastErrorException e) {
throw new IllegalStateException(
"sched_setaffinity(0, "
+ size
+ ", 0x"
+ Utilities.toHexString(affinity)
+ ") failed; errno="
+ e.getErrorCode(),
e);
}
}
static {
if (Platform.isWindows()) {
String path = System.getProperty("java.library.path");
String winPath = "c:\\Windows\\" + (Platform.is64Bit() ? "SysWOW64" : "System32");
if (path == null) path = winPath;
else path = path + ";" + winPath;
System.setProperty("java.library.path", path);
}
}
public JPicosat(String libDir) throws Exception {
if (libDir == null || "".equals(libDir)) libDir = "lib";
StringBuilder pref = new StringBuilder(libDir + DIR);
if (Platform.isMac())
if (Platform.is64Bit()) pref.append("/macosx/64");
else pref.append("/macosx/32");
else if (Platform.isLinux())
if (Platform.is64Bit()) pref.append("/linux/64");
else pref.append("/linux/32");
else if (Platform.isWindows())
if (Platform.is64Bit()) pref.append("/win/64");
else pref.append("/win/32");
else throw new Exception("JPicosat: Platform unsupported!");
System.setProperty("jna.library.path", pref.toString());
INSTANCE = (CPicosat) Native.loadLibrary("picosat", CPicosat.class);
checkLibraryVersion(pref.toString());
}
public static String getCurrentOSAndArchString() {
String os = System.getProperty("os.name"), arch = System.getProperty("os.arch");
if (os.equals("Mac OS X")) {
os = "darwin";
arch = "fat";
// arch = Platform.is64Bit() ? "64" : "32";
} else if (os.startsWith("Windows")) {
return "win" + (Platform.is64Bit() ? "64" : "32");
} else if (os.matches("SunOS|Solaris")) os = "solaris";
return os + "-" + arch;
}
public static int sched_getcpu() {
final CLibrary lib = CLibrary.INSTANCE;
try {
final int ret = lib.sched_getcpu();
if (ret < 0) {
throw new IllegalStateException("sched_getcpu() failed; errno=" + Native.getLastError());
}
return ret;
} catch (LastErrorException e) {
throw new IllegalStateException("sched_getcpu() failed; errno=" + e.getErrorCode(), e);
} catch (UnsatisfiedLinkError ule) {
try {
final IntByReference cpu = new IntByReference();
final IntByReference node = new IntByReference();
final int ret = lib.syscall(318, cpu, node, null);
if (ret != 0) {
throw new IllegalStateException("getcpu() failed; errno=" + Native.getLastError());
}
return cpu.getValue();
} catch (LastErrorException lee) {
if (lee.getErrorCode() == 38 && Platform.is64Bit()) { // unknown call
final Pointer getcpuAddr = new Pointer((-10L << 20) + 1024L * 2L);
final Function getcpu = Function.getFunction(getcpuAddr, Function.C_CONVENTION);
final IntByReference cpu = new IntByReference();
if (getcpu.invokeInt(new Object[] {cpu, null, null}) < 0) {
throw new IllegalStateException("getcpu() failed; errno=" + Native.getLastError());
} else {
return cpu.getValue();
}
} else {
throw new IllegalStateException("getcpu() failed; errno=" + lee.getErrorCode(), lee);
}
}
}
}
