src/java.base/share/native/libjava/ObjectOutputStream.c
branchJDK-8200758-branch
changeset 58307 aebc7040a250
parent 58306 42c7f9800e30
parent 58300 c3b93d6603f5
child 58345 dc4ea94feb52
--- a/src/java.base/share/native/libjava/ObjectOutputStream.c	Tue Sep 24 14:12:08 2019 -0400
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,181 +0,0 @@
-/*
- * Copyright (c) 1999, 2013, Oracle and/or its affiliates. All rights reserved.
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This code is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 only, as
- * published by the Free Software Foundation.  Oracle designates this
- * particular file as subject to the "Classpath" exception as provided
- * by Oracle in the LICENSE file that accompanied this code.
- *
- * This code 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
- * version 2 for more details (a copy is included in the LICENSE file that
- * accompanied this code).
- *
- * You should have received a copy of the GNU General Public License version
- * 2 along with this work; if not, write to the Free Software Foundation,
- * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
- *
- * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
- * or visit www.oracle.com if you need additional information or have any
- * questions.
- */
-
-#include "jni_util.h"
-#include "jdk_util.h"
-
-#include "java_lang_Float.h"
-#include "java_lang_Double.h"
-#include "java_io_ObjectOutputStream.h"
-
-/*
- * Class:     java_io_ObjectOutputStream
- * Method:    floatsToBytes
- * Signature: ([FI[BII)V
- *
- * Convert nfloats float values to their byte representations.  Float values
- * are read from array src starting at offset srcpos and written to array
- * dst starting at offset dstpos.
- */
-JNIEXPORT void JNICALL
-Java_java_io_ObjectOutputStream_floatsToBytes(JNIEnv *env,
-                                              jclass this,
-                                              jfloatArray src,
-                                              jint srcpos,
-                                              jbyteArray dst,
-                                              jint dstpos,
-                                              jint nfloats)
-{
-    union {
-        int i;
-        float f;
-    } u;
-    jfloat *floats;
-    jbyte *bytes;
-    jsize srcend;
-    jint ival;
-    float fval;
-
-    if (nfloats == 0)
-        return;
-
-    /* fetch source array */
-    if (src == NULL) {
-        JNU_ThrowNullPointerException(env, NULL);
-        return;
-    }
-    floats = (*env)->GetPrimitiveArrayCritical(env, src, NULL);
-    if (floats == NULL)         /* exception thrown */
-        return;
-
-    /* fetch dest array */
-    if (dst == NULL) {
-        (*env)->ReleasePrimitiveArrayCritical(env, src, floats, JNI_ABORT);
-        JNU_ThrowNullPointerException(env, NULL);
-        return;
-    }
-    bytes = (*env)->GetPrimitiveArrayCritical(env, dst, NULL);
-    if (bytes == NULL) {        /* exception thrown */
-        (*env)->ReleasePrimitiveArrayCritical(env, src, floats, JNI_ABORT);
-        return;
-    }
-
-    /* do conversion */
-    srcend = srcpos + nfloats;
-    for ( ; srcpos < srcend; srcpos++) {
-        fval = (float) floats[srcpos];
-        if (ISNANF(fval)) {          /* collapse NaNs */
-            ival = 0x7fc00000;
-        } else {
-            u.f = fval;
-            ival = (jint) u.i;
-        }
-        bytes[dstpos++] = (ival >> 24) & 0xFF;
-        bytes[dstpos++] = (ival >> 16) & 0xFF;
-        bytes[dstpos++] = (ival >> 8) & 0xFF;
-        bytes[dstpos++] = (ival >> 0) & 0xFF;
-    }
-
-    (*env)->ReleasePrimitiveArrayCritical(env, src, floats, JNI_ABORT);
-    (*env)->ReleasePrimitiveArrayCritical(env, dst, bytes, 0);
-}
-
-/*
- * Class:     java_io_ObjectOutputStream
- * Method:    doublesToBytes
- * Signature: ([DI[BII)V
- *
- * Convert ndoubles double values to their byte representations.  Double
- * values are read from array src starting at offset srcpos and written to
- * array dst starting at offset dstpos.
- */
-JNIEXPORT void JNICALL
-Java_java_io_ObjectOutputStream_doublesToBytes(JNIEnv *env,
-                                               jclass this,
-                                               jdoubleArray src,
-                                               jint srcpos,
-                                               jbyteArray dst,
-                                               jint dstpos,
-                                               jint ndoubles)
-{
-    union {
-        jlong l;
-        double d;
-    } u;
-    jdouble *doubles;
-    jbyte *bytes;
-    jsize srcend;
-    jdouble dval;
-    jlong lval;
-
-    if (ndoubles == 0)
-        return;
-
-    /* fetch source array */
-    if (src == NULL) {
-        JNU_ThrowNullPointerException(env, NULL);
-        return;
-    }
-    doubles = (*env)->GetPrimitiveArrayCritical(env, src, NULL);
-    if (doubles == NULL)                /* exception thrown */
-        return;
-
-    /* fetch dest array */
-    if (dst == NULL) {
-        (*env)->ReleasePrimitiveArrayCritical(env, src, doubles, JNI_ABORT);
-        JNU_ThrowNullPointerException(env, NULL);
-        return;
-    }
-    bytes = (*env)->GetPrimitiveArrayCritical(env, dst, NULL);
-    if (bytes == NULL) {        /* exception thrown */
-        (*env)->ReleasePrimitiveArrayCritical(env, src, doubles, JNI_ABORT);
-        return;
-    }
-
-    /* do conversion */
-    srcend = srcpos + ndoubles;
-    for ( ; srcpos < srcend; srcpos++) {
-        dval = doubles[srcpos];
-        if (ISNAND((double) dval)) {         /* collapse NaNs */
-            lval = jint_to_jlong(0x7ff80000);
-            lval = jlong_shl(lval, 32);
-        } else {
-            jdouble_to_jlong_bits(&dval);
-            u.d = (double) dval;
-            lval = u.l;
-        }
-        bytes[dstpos++] = (lval >> 56) & 0xFF;
-        bytes[dstpos++] = (lval >> 48) & 0xFF;
-        bytes[dstpos++] = (lval >> 40) & 0xFF;
-        bytes[dstpos++] = (lval >> 32) & 0xFF;
-        bytes[dstpos++] = (lval >> 24) & 0xFF;
-        bytes[dstpos++] = (lval >> 16) & 0xFF;
-        bytes[dstpos++] = (lval >> 8) & 0xFF;
-        bytes[dstpos++] = (lval >> 0) & 0xFF;
-    }
-
-    (*env)->ReleasePrimitiveArrayCritical(env, src, doubles, JNI_ABORT);
-    (*env)->ReleasePrimitiveArrayCritical(env, dst, bytes, 0);
-}