diff -r 115e09b7a004 -r 3acf8e5e2ca0 jdk/src/solaris/native/sun/nio/fs/UnixCopyFile.c --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/jdk/src/solaris/native/sun/nio/fs/UnixCopyFile.c Sun Feb 15 12:25:54 2009 +0000 @@ -0,0 +1,85 @@ +/* + * Copyright 2008-2009 Sun Microsystems, Inc. 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. Sun designates this + * particular file as subject to the "Classpath" exception as provided + * by Sun 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, + * CA 95054 USA or visit www.sun.com if you need additional information or + * have any questions. + */ + +#include "jni.h" +#include "jni_util.h" +#include "jlong.h" + +#include +#include + +#include "sun_nio_fs_UnixCopyFile.h" + +#define RESTARTABLE(_cmd, _result) do { \ + do { \ + _result = _cmd; \ + } while((_result == -1) && (errno == EINTR)); \ +} while(0) + +static void throwUnixException(JNIEnv* env, int errnum) { + jobject x = JNU_NewObjectByName(env, "sun/nio/fs/UnixException", + "(I)V", errnum); + if (x != NULL) { + (*env)->Throw(env, x); + } +} + +/** + * Transfer all bytes from src to dst via user-space buffers + */ +JNIEXPORT void JNICALL +Java_sun_nio_fs_UnixCopyFile_transfer + (JNIEnv* env, jclass this, jint dst, jint src, jlong cancelAddress) +{ + char buf[8192]; + volatile jint* cancel = (jint*)jlong_to_ptr(cancelAddress); + + for (;;) { + ssize_t n, pos, len; + RESTARTABLE(read((int)src, &buf, sizeof(buf)), n); + if (n <= 0) { + if (n < 0) + throwUnixException(env, errno); + return; + } + if (cancel != NULL && *cancel != 0) { + throwUnixException(env, ECANCELED); + return; + } + pos = 0; + len = n; + do { + char* bufp = buf; + bufp += pos; + RESTARTABLE(write((int)dst, bufp, len), n); + if (n == -1) { + throwUnixException(env, errno); + return; + } + pos += n; + len -= n; + } while (len > 0); + } +}