20  *
  21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any
  23  * questions.
  24  */
  25 
  26 #include <sys/types.h>
  27 #include <sys/stat.h>
  28 #include <fcntl.h>
  29 #include <unistd.h>
  30 
  31 #include "jni.h"
  32 #include "jni_util.h"
  33 #include "jvm.h"
  34 #include "io_util.h"
  35 #include "io_util_md.h"
  36 
  37 #include "java_io_RandomAccessFile.h"
  38 
  39 extern jfieldID raf_fd; /* id for jobject 'fd' in java.io.RandomAccessFile */

  40 
  41 /*********************************************************************
  42  * Platform specific implementation of input stream native methods
  43  */
  44 
  45 JNIEXPORT void JNICALL
  46 Java_java_io_RandomAccessFile_close0(JNIEnv *env, jobject this) {
  47     fileClose(env, this, raf_fd);
























































  48 }

  20  *
  21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any
  23  * questions.
  24  */
  25 
  26 #include <sys/types.h>
  27 #include <sys/stat.h>
  28 #include <fcntl.h>
  29 #include <unistd.h>
  30 
  31 #include "jni.h"
  32 #include "jni_util.h"
  33 #include "jvm.h"
  34 #include "io_util.h"
  35 #include "io_util_md.h"
  36 
  37 #include "java_io_RandomAccessFile.h"
  38 
  39 extern jfieldID raf_fd; /* id for jobject 'fd' in java.io.RandomAccessFile */
  40 extern jfieldID raf_pgsz; /* id for jobject 'fd' in java.io.RandomAccessFile */
  41 
  42 /*********************************************************************
  43  * Platform specific implementation of input stream native methods
  44  */
  45 
  46 JNIEXPORT void JNICALL
  47 Java_java_io_RandomAccessFile_close0(JNIEnv *env, jobject this) {
  48     fileClose(env, this, raf_fd);
  49 }
  50 
  51 JNIEXPORT void JNICALL
  52 Java_java_io_RandomAccessFile_open0(JNIEnv *env,
  53                                     jobject this, jstring path, jint mode)
  54 {
  55     int flags = 0;
  56     if (mode & java_io_RandomAccessFile_O_RDONLY) {
  57         flags = O_RDONLY;
  58         if (mode & java_io_RandomAccessFile_O_DIRECT)
  59             flags |= O_DIRECT;
  60     }
  61     else if (mode & java_io_RandomAccessFile_O_RDWR) {
  62         flags = O_RDWR | O_CREAT;
  63         if (mode & java_io_RandomAccessFile_O_SYNC)
  64             flags |= O_SYNC;
  65         else if (mode & java_io_RandomAccessFile_O_DSYNC)
  66             flags |= O_DSYNC;
  67         else if (mode & java_io_RandomAccessFile_O_DIRECT)
  68             flags |= O_DIRECT;
  69     }
  70     fileOpen(env, this, path, raf_fd, flags);
  71 }
  72 
  73 JNIEXPORT jlong JNICALL
  74 Java_java_io_RandomAccessFile_getCurrentLocation0(JNIEnv *env, jobject this) {
  75 
  76     FD fd;
  77 
  78     fd = GET_FD(this, raf_fd);
  79     if (fd == -1) {
  80         JNU_ThrowIOException(env, "Stream Closed");
  81         return -1;
  82     }
  83     jlong currentLocation = IO_Lseek(fd, 0, SEEK_CUR);
  84     if (currentLocation == -1) {
  85         JNU_ThrowIOExceptionWithLastError(env, "Seek failed");
  86     }
  87     return currentLocation;
  88 }
  89 
  90 JNIEXPORT jint JNICALL
  91 Java_java_io_RandomAccessFile_getPageSize0(JNIEnv *env, jobject this) {
  92     return getpagesize();
  93 }
  94 
  95 JNIEXPORT jint JNICALL
  96 Java_java_io_RandomAccessFile_readBytesD(JNIEnv *env,
  97     jobject this, jbyteArray bytes, jint off, jint len) {
  98     return readBytesD(env, this, bytes, off, len, raf_fd, raf_pgsz);
  99 }
 100 
 101 JNIEXPORT void JNICALL
 102 Java_java_io_RandomAccessFile_writeBytesD(JNIEnv *env,
 103     jobject this, jbyteArray bytes, jint off, jint len) {
 104     writeBytesD(env, this, bytes, off, len, JNI_FALSE, raf_fd, raf_pgsz);
 105 }