Examples with Substitute com.oracle.svm.core.annotate.Substitute used on opensource projects

Example 51 with Substitute

use of com.oracle.svm.core.annotate.Substitute in project graal by oracle.

the class Util_jni method getLocalHostName.

@Substitute
// 354 Java_java_net_Inet4AddressImpl_getLocalHostName(JNIEnv *env, jobject this) {
@SuppressWarnings({ "static-method" })
public String getLocalHostName() {
    // 355     char hostname[NI_MAXHOST+1];
    CCharPointer hostname = StackValue.get(Netdb.NI_MAXHOST() + 1, SizeOf.get(CCharPointer.class));
    // 357     hostname[0] = '\0';
    hostname.write(0, (byte) '\0');
    // 358     if (JVM_GetHostName(hostname, sizeof(hostname))) {
    if (CTypeConversion.toBoolean(VmPrimsJVM.JVM_GetHostName(hostname, Netdb.NI_MAXHOST() + 1))) {
        // 360         strcpy(hostname, "localhost");
        try (CCharPointerHolder pin = CTypeConversion.toCString("localhost")) {
            LibC.strcpy(hostname, pin.get());
        }
    } else {
        // 362         struct addrinfo hints, *res;
        Netdb.addrinfo hints = StackValue.get(SizeOf.get(Netdb.addrinfo.class));
        Netdb.addrinfoPointer res = StackValue.get(SizeOf.get(Netdb.addrinfoPointer.class));
        // 363         int error;
        int error;
        // 365         hostname[NI_MAXHOST] = '\0';
        hostname.write(Netdb.NI_MAXHOST(), (byte) '\0');
        // 366         memset(&hints, 0, sizeof(hints));
        LibC.memset(hints, WordFactory.zero(), SizeOf.unsigned(Netdb.addrinfo.class));
        // 367         hints.ai_flags = AI_CANONNAME;
        hints.set_ai_flags(Netdb.AI_CANONNAME());
        // 368         hints.ai_family = AF_INET;
        hints.set_ai_family(Socket.AF_INET());
        // 370         error = getaddrinfo(hostname, NULL, &hints, &res);
        error = Netdb.getaddrinfo(hostname, WordFactory.nullPointer(), hints, res);
        // 372         if (error == 0) {/* host is known to name service */
        if (error == 0) {
            // 373             getnameinfo(res->ai_addr,
            // 374                         res->ai_addrlen,
            // 375                         hostname,
            // 376                         NI_MAXHOST,
            // 377                         NULL,
            // 378                         0,
            // 379                         NI_NAMEREQD);
            Netdb.getnameinfo(res.read().ai_addr(), res.read().ai_addrlen(), hostname, Netdb.NI_MAXHOST(), WordFactory.nullPointer(), 0, Netdb.NI_NAMEREQD());
            // 381             /* if getnameinfo fails hostname is still the value
            // 382                from gethostname */
            // 384             freeaddrinfo(res);
            Netdb.freeaddrinfo(res.read());
        }
    }
    // 387     return (*env)->NewStringUTF(env, hostname);
    return CTypeConversion.toJavaString(hostname);
}

Example 52 with Substitute

use of com.oracle.svm.core.annotate.Substitute in project graal by oracle.

the class JavaUtilZipSubstitutions method setDictionary.

// Inflater.c-Java_java_util_zip_Inflater_setDictionary(JNIEnv *env, jclass cls, jlong addr,
@Substitute
private static void setDictionary(long addr, byte[] b, int off, int len) {
    try (PinnedObject pinned = PinnedObject.create(b)) {
        CCharPointer bufPlusOff = pinned.addressOfArrayElement(off);
        int res = ZLib.inflateSetDictionary(WordFactory.pointer(addr), bufPlusOff, len);
        if (res == ZLib.Z_OK()) {
            return;
        } else if (res == ZLib.Z_STREAM_ERROR() || res == ZLib.Z_DATA_ERROR()) {
            throw new IllegalArgumentException();
        } else {
            throw new InternalError();
        }
    }
}

Example 53 with Substitute

use of com.oracle.svm.core.annotate.Substitute in project graal by oracle.

the class JavaUtilZipSubstitutions method deflateBytes.

// Deflater.c-Java_java_util_zip_Deflater_deflateBytes(JNIEnv *env, jobject this, jlong addr,
@SuppressWarnings("hiding")
@Substitute
private int deflateBytes(long addr, byte[] b, int off, int len, int flush) {
    z_stream strm = WordFactory.pointer(addr);
    try (PinnedObject pinned_in_buf = PinnedObject.create(this.buf);
        PinnedObject pinned_out_buf = PinnedObject.create(b)) {
        strm.set_next_in(pinned_in_buf.addressOfArrayElement(this.off));
        strm.set_next_out(pinned_out_buf.addressOfArrayElement(off));
        strm.set_avail_in(this.len);
        strm.set_avail_out(len);
        if (this.setParams) {
            int res = ZLib.deflateParams(strm, level, strategy);
            this.setParams = false;
            if (res == ZLib.Z_OK()) {
                return Util_java_util_zip_Deflater.update(this, len, strm);
            } else if (res == ZLib.Z_BUF_ERROR()) {
                return 0;
            } else {
                throw new InternalError();
            }
        } else {
            int res = ZLib.deflate(strm, this.finish ? ZLib.Z_FINISH() : flush);
            if (res == ZLib.Z_STREAM_END()) {
                this.finished = true;
                return Util_java_util_zip_Deflater.update(this, len, strm);
            } else if (res == ZLib.Z_OK()) {
                return Util_java_util_zip_Deflater.update(this, len, strm);
            } else if (res == ZLib.Z_BUF_ERROR()) {
                return 0;
            } else {
                throw new InternalError();
            }
        }
    }
}

Example 54 with Substitute

use of com.oracle.svm.core.annotate.Substitute in project graal by oracle.

the class PosixJavaIOSubstitutions method canonicalize0.

@Substitute
private String canonicalize0(String path) throws IOException {
    final int maxPathLen = MAXPATHLEN();
    if (path.length() > maxPathLen) {
        throw new IOException("Bad pathname");
    }
    CCharPointer resolved = StackValue.get(maxPathLen);
    try (CCharPointerHolder pathPin = CTypeConversion.toCString(path)) {
        CCharPointer pathPtr = pathPin.get();
        if (realpath(pathPtr, resolved).notEqual(WordFactory.zero())) {
            // that worked, so return it
            return PosixUtils.collapse(CTypeConversion.toJavaString(resolved));
        }
    }
    // something's bogus in the original path, so remove names from the end
    // until either some subpath works or we run out of names
    String resolvedPart = path;
    String unresolvedPart = "";
    CCharPointer r = WordFactory.nullPointer();
    int lastSep = resolvedPart.lastIndexOf('/');
    while (lastSep != -1) {
        // prepend the last part of the resolved part to the unresolved part
        unresolvedPart = resolvedPart.substring(lastSep) + unresolvedPart;
        // remove the last part from the resolved part
        resolvedPart = lastSep == 0 ? "" : resolvedPart.substring(0, lastSep);
        lastSep = resolvedPart.lastIndexOf('/');
        if (lastSep == -1) {
            break;
        }
        try (CCharPointerHolder pathPin = CTypeConversion.toCString(resolvedPart)) {
            CCharPointer resolvedPartPtr = pathPin.get();
            r = realpath(resolvedPartPtr, resolved);
        }
        int errno = errno();
        if (r.notEqual(WordFactory.zero())) {
            // the subpath has a canonical path
            break;
        } else if (errno == ENOENT() || errno == ENOTDIR() || errno == EACCES()) {
            // Other I/O problems cause an error return.
            continue;
        } else {
            throw new IOException(lastErrorString("Bad pathname"));
        }
    }
    if (r.notEqual(WordFactory.zero())) {
        // append unresolved subpath to resolved subpath
        String rs = CTypeConversion.toJavaString(r);
        if (rs.length() + 1 + unresolvedPart.length() > maxPathLen) {
            throw new IOException(lastErrorString("Bad pathname"));
        }
        return PosixUtils.collapse(rs + "/" + unresolvedPart);
    } else {
        // nothing resolved, so just return the original path
        return PosixUtils.collapse(path);
    }
}

Example 55 with Substitute

use of com.oracle.svm.core.annotate.Substitute in project graal by oracle.

the class PosixJavaIOSubstitutions method skip.

@Substitute
public long skip(long n) throws IOException {
    SignedWord cur = WordFactory.zero();
    SignedWord end = WordFactory.zero();
    int handle = PosixUtils.getFDHandle(fd);
    if ((cur = lseek(handle, WordFactory.zero(), SEEK_CUR())).equal(WordFactory.signed(-1))) {
        throw new IOException(lastErrorString("Seek error"));
    } else if ((end = lseek(handle, WordFactory.signed(n), SEEK_CUR())).equal(WordFactory.signed(-1))) {
        throw new IOException(lastErrorString("Seek error"));
    }
    return end.subtract(cur).rawValue();
}