src/java.base/unix/native/libjava/FileOutputStream_md.c

*** 36,64 ****
  /*******************************************************************/
  /*  BEGIN JNI ********* BEGIN JNI *********** BEGIN JNI ************/
  /*******************************************************************/
  
  jfieldID fos_fd; /* id for jobject 'fd' in java.io.FileOutputStream */
  
  /**************************************************************
   * static methods to store field ID's in initializers
   */
  
  JNIEXPORT void JNICALL
  Java_java_io_FileOutputStream_initIDs(JNIEnv *env, jclass fdClass) {
      fos_fd = (*env)->GetFieldID(env, fdClass, "fd", "Ljava/io/FileDescriptor;");
  }
  
  /**************************************************************
   * Output stream
   */
  
  JNIEXPORT void JNICALL
  Java_java_io_FileOutputStream_open0(JNIEnv *env, jobject this,
!                                     jstring path, jboolean append) {
      fileOpen(env, this, path, fos_fd,
               O_WRONLY | O_CREAT | (append ? O_APPEND : O_TRUNC));
  }
  
  JNIEXPORT void JNICALL
  Java_java_io_FileOutputStream_write(JNIEnv *env, jobject this, jint byte, jboolean append) {
      writeSingle(env, this, byte, append, fos_fd);
--- 36,71 ----
  /*******************************************************************/
  /*  BEGIN JNI ********* BEGIN JNI *********** BEGIN JNI ************/
  /*******************************************************************/
  
  jfieldID fos_fd; /* id for jobject 'fd' in java.io.FileOutputStream */
+ jfieldID fos_pgsz; /* id for jobject 'pageSize' in java.io.FileOutputStream */
  
  /**************************************************************
   * static methods to store field ID's in initializers
   */
  
  JNIEXPORT void JNICALL
  Java_java_io_FileOutputStream_initIDs(JNIEnv *env, jclass fdClass) {
      fos_fd = (*env)->GetFieldID(env, fdClass, "fd", "Ljava/io/FileDescriptor;");
+     fos_pgsz = (*env)->GetFieldID(env, fdClass, "pageSize", "I");
  }
  
  /**************************************************************
   * Output stream
   */
  
  JNIEXPORT void JNICALL
  Java_java_io_FileOutputStream_open0(JNIEnv *env, jobject this,
!                                     jstring path, jboolean append, jboolean direct) {
!     if (direct) { 
!         fileOpen(env, this, path, fos_fd,
!              O_WRONLY | O_CREAT | (append ? O_APPEND : O_TRUNC) | O_DIRECT);
!     } else {
          fileOpen(env, this, path, fos_fd,
               O_WRONLY | O_CREAT | (append ? O_APPEND : O_TRUNC));
+     }
  }
  
  JNIEXPORT void JNICALL
  Java_java_io_FileOutputStream_write(JNIEnv *env, jobject this, jint byte, jboolean append) {
      writeSingle(env, this, byte, append, fos_fd);
*** 69,76 ****
--- 76,111 ----
      jobject this, jbyteArray bytes, jint off, jint len, jboolean append) {
      writeBytes(env, this, bytes, off, len, append, fos_fd);
  }
  
  JNIEXPORT void JNICALL
+ Java_java_io_FileOutputStream_writeBytesD(JNIEnv *env,
+     jobject this, jbyteArray bytes, jint off, jint len, jboolean append) {
+     writeBytesD(env, this, bytes, off, len, append, fos_fd, fos_pgsz);
+ }
+ 
+ JNIEXPORT jint JNICALL
+ Java_java_io_FileOutputStream_getPageSize0(JNIEnv *env, jobject this) {
+     return getpagesize();
+ }
+ 
+ JNIEXPORT void JNICALL
  Java_java_io_FileOutputStream_close0(JNIEnv *env, jobject this) {
      fileClose(env, this, fos_fd);
  }
+ 
+ JNIEXPORT jlong JNICALL
+ Java_java_io_FileOutputStream_getCurrentLocation0(JNIEnv *env, jobject this) {
+     FD fd;
+ 
+     fd = GET_FD(this, fos_fd);
+     if (fd == -1) {
+         JNU_ThrowIOException(env, "Stream Closed");
+         return -1;
+     }
+     jlong currentLocation = IO_Lseek(fd, 0, SEEK_CUR);
+     if (currentLocation == -1) {
+         JNU_ThrowIOExceptionWithLastError(env, "Seek failed");
+     }
+     return currentLocation;
+ }
+