Examples with ErrnoException libcore.io.ErrnoException used on opensource projects

Example 41 with ErrnoException

use of libcore.io.ErrnoException in project robovm by robovm.

the class FileChannelImpl method release.

/**
     * Non-API method to release a given lock on a file channel. Assumes that
     * the lock will mark itself invalid after successful unlocking.
     */
public void release(FileLock lock) throws IOException {
    checkOpen();
    StructFlock flock = new StructFlock();
    flock.l_type = (short) F_UNLCK;
    flock.l_whence = (short) SEEK_SET;
    flock.l_start = lock.position();
    flock.l_len = translateLockLength(lock.size());
    try {
        Libcore.os.fcntlFlock(fd, F_SETLKW64, flock);
    } catch (ErrnoException errnoException) {
        throw errnoException.rethrowAsIOException();
    }
    removeLock(lock);
}

Example 42 with ErrnoException

use of libcore.io.ErrnoException in project robovm by robovm.

the class FileChannelImpl method map.

public final MappedByteBuffer map(MapMode mapMode, long position, long size) throws IOException {
    checkOpen();
    if (mapMode == null) {
        throw new NullPointerException("mapMode == null");
    }
    if (position < 0 || size < 0 || size > Integer.MAX_VALUE) {
        throw new IllegalArgumentException("position=" + position + " size=" + size);
    }
    int accessMode = (mode & O_ACCMODE);
    if (accessMode == O_RDONLY) {
        if (mapMode != MapMode.READ_ONLY) {
            throw new NonWritableChannelException();
        }
    } else if (accessMode == O_WRONLY) {
        throw new NonReadableChannelException();
    }
    if (position + size > size()) {
        // and we only care about making our backing file longer here.
        try {
            Libcore.os.ftruncate(fd, position + size);
        } catch (ErrnoException ftruncateException) {
            // continue on.
            try {
                if (S_ISREG(Libcore.os.fstat(fd).st_mode) || ftruncateException.errno != EINVAL) {
                    throw ftruncateException.rethrowAsIOException();
                }
            } catch (ErrnoException fstatException) {
                throw fstatException.rethrowAsIOException();
            }
        }
    }
    long alignment = position - position % Libcore.os.sysconf(_SC_PAGE_SIZE);
    int offset = (int) (position - alignment);
    MemoryBlock block = MemoryBlock.mmap(fd, alignment, size + offset, mapMode);
    return new DirectByteBuffer(block, (int) size, offset, (mapMode == MapMode.READ_ONLY), mapMode);
}

Example 43 with ErrnoException

use of libcore.io.ErrnoException in project robovm by robovm.

the class SocketChannelImpl method initLocalAddressAndPort.

private void initLocalAddressAndPort() {
    SocketAddress sa;
    try {
        sa = Libcore.os.getsockname(fd);
    } catch (ErrnoException errnoException) {
        throw new AssertionError(errnoException);
    }
    InetSocketAddress isa = (InetSocketAddress) sa;
    localAddress = isa.getAddress();
    localPort = isa.getPort();
    if (socket != null) {
        socket.socketImpl().initLocalPort(localPort);
    }
}

Example 44 with ErrnoException

use of libcore.io.ErrnoException in project robovm by robovm.

the class System method initSystemProperties.

private static void initSystemProperties() {
    VMRuntime runtime = VMRuntime.getRuntime();
    Properties p = new Properties();
    String projectUrl = "http://www.robovm.org/";
    String projectName = "RoboVM";
    p.put("java.boot.class.path", runtime.bootClassPath());
    p.put("java.class.path", runtime.classPath());
    // None of these four are meaningful on Android, but these keys are guaranteed
    // to be present for System.getProperty. For java.class.version, we use the maximum
    // class file version that dx currently supports.
    p.put("java.class.version", "50.0");
    p.put("java.compiler", "");
    p.put("java.ext.dirs", "");
    p.put("java.version", "0");
    // RoboVM note: Android uses getenv("JAVA_HOME") here with "/system" as fallback.
    p.put("java.home", VM.resourcesPath());
    // RoboVM note: Use value of $TMPDIR if set. Otherwise use /tmp as Android does.
    String tmpdir = getenv("TMPDIR");
    p.put("java.io.tmpdir", tmpdir != null ? tmpdir : "/tmp");
    String ldLibraryPath = getenv("LD_LIBRARY_PATH");
    if (ldLibraryPath != null) {
        p.put("java.library.path", ldLibraryPath);
    }
    p.put("java.specification.name", "RoboVM Core Library");
    p.put("java.specification.vendor", projectName);
    p.put("java.specification.version", "0.9");
    p.put("java.vendor", projectName);
    p.put("java.vendor.url", projectUrl);
    p.put("java.vm.name", "RoboVM");
    p.put("java.vm.specification.name", "RoboVM Virtual Machine Specification");
    p.put("java.vm.specification.vendor", projectName);
    p.put("java.vm.specification.version", "0.9");
    p.put("java.vm.vendor", projectName);
    p.put("java.vm.version", runtime.vmVersion());
    p.put("file.separator", "/");
    p.put("line.separator", "\n");
    p.put("path.separator", ":");
    p.put("java.runtime.name", "RoboVM Runtime");
    p.put("java.runtime.version", "0.9");
    p.put("java.vm.vendor.url", projectUrl);
    p.put("file.encoding", "UTF-8");
    p.put("user.language", "en");
    p.put("user.region", "US");
    try {
        StructPasswd passwd = Libcore.os.getpwuid(Libcore.os.getuid());
        p.put("user.home", passwd.pw_dir);
        p.put("user.name", passwd.pw_name);
    } catch (ErrnoException exception) {
        // RoboVM note: Start change. Fall back to environment variables. getpwuid() fails on the iOS simulator.
        String home = getenv("HOME");
        String user = getenv("USER");
        p.put("user.home", home != null ? home : "");
        p.put("user.name", user != null ? user : "");
    // RoboVM note: End change.
    }
    StructUtsname info = Libcore.os.uname();
    p.put("os.arch", info.machine);
    p.put("os.name", info.sysname);
    p.put("os.version", info.release);
    // Undocumented Android-only properties.
    p.put("android.icu.library.version", ICU.getIcuVersion());
    p.put("android.icu.unicode.version", ICU.getUnicodeVersion());
    p.put("android.icu.cldr.version", ICU.getCldrVersion());
    parsePropertyAssignments(p, specialProperties());
    parsePropertyAssignments(p, robovmSpecialProperties());
    // user.home, user.dir and user.name values on iOS.
    if (p.getProperty("os.name").contains("iOS")) {
        // On iOS we want user.home and user.dir to point to the app's data
        // container root dir. This is the dir $HOME points to. We also set
        // user.name to $USER or hardcode 'mobile' if $USER isn't set (iOS
        // simulator).
        String home = getenv("HOME");
        String user = getenv("USER");
        p.put("user.home", home != null ? home : "");
        p.put("user.dir", home != null ? home : "/");
        p.put("user.name", user != null ? user : "mobile");
    }
    // RoboVM note: End change.
    // Override built-in properties with settings from the command line.
    parsePropertyAssignments(p, runtime.properties());
    systemProperties = p;
}

Example 45 with ErrnoException

use of libcore.io.ErrnoException in project robovm by robovm.

the class InetAddress method lookupHostByName.

/**
     * Resolves a hostname to its IP addresses using a cache.
     *
     * @param host the hostname to resolve.
     * @return the IP addresses of the host.
     */
private static InetAddress[] lookupHostByName(String host) throws UnknownHostException {
    BlockGuard.getThreadPolicy().onNetwork();
    // Do we have a result cached?
    Object cachedResult = addressCache.get(host);
    if (cachedResult != null) {
        if (cachedResult instanceof InetAddress[]) {
            // A cached positive result.
            return (InetAddress[]) cachedResult;
        } else {
            // A cached negative result.
            throw new UnknownHostException((String) cachedResult);
        }
    }
    try {
        StructAddrinfo hints = new StructAddrinfo();
        hints.ai_flags = AI_ADDRCONFIG;
        hints.ai_family = AF_UNSPEC;
        // If we don't specify a socket type, every address will appear twice, once
        // for SOCK_STREAM and one for SOCK_DGRAM. Since we do not return the family
        // anyway, just pick one.
        hints.ai_socktype = SOCK_STREAM;
        InetAddress[] addresses = Libcore.os.getaddrinfo(host, hints);
        // TODO: should getaddrinfo set the hostname of the InetAddresses it returns?
        for (InetAddress address : addresses) {
            address.hostName = host;
        }
        addressCache.put(host, addresses);
        return addresses;
    } catch (GaiException gaiException) {
        // http://code.google.com/p/android/issues/detail?id=15722
        if (gaiException.getCause() instanceof ErrnoException) {
            if (((ErrnoException) gaiException.getCause()).errno == EACCES) {
                throw new SecurityException("Permission denied (missing INTERNET permission?)", gaiException);
            }
        }
        // Otherwise, throw an UnknownHostException.
        String detailMessage = "Unable to resolve host \"" + host + "\": " + Libcore.os.gai_strerror(gaiException.error);
        addressCache.putUnknownHost(host, detailMessage);
        throw gaiException.rethrowAsUnknownHostException(detailMessage);
    }
}