/*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* 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.h"
#include "jni_util.h"
extern jfieldID IO_fd_fdID;
extern jfieldID IO_handle_fdID;
#ifdef _ALLBSD_SOURCE
#include <fcntl.h>
#ifndef O_SYNC
#endif
#ifndef O_DSYNC
#endif
#endif
/*
* IO helper functions
*/
/*
* Macros for managing platform strings. The typical usage pattern is:
*
* WITH_PLATFORM_STRING(env, string, var) {
* doSomethingWith(var);
* } END_PLATFORM_STRING(env, var);
*
* where env is the prevailing JNIEnv,
* string is a JNI reference to a java.lang.String object, and
* var is the char * variable that will point to the string,
* after being converted into the platform encoding.
*
* The related macro WITH_FIELD_PLATFORM_STRING first extracts the string from
* a given field of a given object:
*
* WITH_FIELD_PLATFORM_STRING(env, object, id, var) {
* doSomethingWith(var);
* } END_PLATFORM_STRING(env, var);
*
* where env is the prevailing JNIEnv,
* object is a jobject,
* id is the field ID of the String field to be extracted, and
* var is the char * variable that will point to the string.
*
* Uses of these macros may be nested as long as each WITH_.._STRING macro
* declares a unique variable.
*/
if (1) { \
const char *var; \
} \
? NULL \
var)
} else ((void)NULL)
/* Macros for transforming Java Strings into native Unicode strings.
* Works analogously to WITH_PLATFORM_STRING.
*/
if (1) { \
} \
} else ((void)NULL)