Bring Java SWMR changes from revise_chunks to develop branch

11 files changed, 168 insertions, 2 deletions

diff --git a/MANIFEST b/MANIFEST
index ae8e0a3..1f26d95 100644
--- a/MANIFEST
+++ b/MANIFEST
@@ -2882,6 +2882,7 @@
 ./java/test/TestH5Fparams.java
 ./java/test/TestH5Fbasic.java
 ./java/test/TestH5F.java
+./java/test/TestH5Fswmr.java
 ./java/test/TestH5Gbasic.java
 ./java/test/TestH5G.java
 ./java/test/TestH5Giterate.java
diff --git a/java/src/hdf/hdf5lib/H5.java b/java/src/hdf/hdf5lib/H5.java
index cd5793d..6b2af4b 100644
--- a/java/src/hdf/hdf5lib/H5.java
+++ b/java/src/hdf/hdf5lib/H5.java
@@ -2853,6 +2853,17 @@ public class H5 implements java.io.Serializable {
     public synchronized static native void H5Fclear_elink_file_cache(long file_id) throws HDF5LibraryException;
 
     /**
+     * H5Fstart_swmr_write will activate SWMR writing mode for a file associated with file_id. This routine will
+     * prepare and ensure the file is safe for SWMR writing.
+     *
+     * @param file_id
+     *            IN: Identifier of the target file.
+     *
+     * @exception HDF5LibraryException
+     *                - Error from the HDF-5 Library.
+     **/
+    public synchronized static native void H5Fstart_swmr_write(long file_id) throws HDF5LibraryException;
+
     /**
      * H5Fstart_mdc_logging starts logging metadata cache events if logging was previously enabled.
      *
diff --git a/java/src/hdf/hdf5lib/HDF5Constants.java b/java/src/hdf/hdf5lib/HDF5Constants.java
index 8089544..acd3eb5 100644
--- a/java/src/hdf/hdf5lib/HDF5Constants.java
+++ b/java/src/hdf/hdf5lib/HDF5Constants.java
@@ -201,6 +201,8 @@ public class HDF5Constants {
     public static final int H5F_ACC_RDWR = H5F_ACC_RDWR();
     public static final int H5F_ACC_TRUNC = H5F_ACC_TRUNC();
     public static final int H5F_ACC_DEFAULT = H5F_ACC_DEFAULT();
+    public static final int H5F_ACC_SWMR_READ = H5F_ACC_SWMR_READ();
+    public static final int H5F_ACC_SWMR_WRITE = H5F_ACC_SWMR_WRITE();
     public static final int H5F_CLOSE_DEFAULT = H5F_CLOSE_DEFAULT();
     public static final int H5F_CLOSE_SEMI = H5F_CLOSE_SEMI();
     public static final int H5F_CLOSE_STRONG = H5F_CLOSE_STRONG();
@@ -984,6 +986,10 @@ public class HDF5Constants {
 
     private static native final int H5F_ACC_DEFAULT();
 
+    private static native final int H5F_ACC_SWMR_READ();
+
+    private static native final int H5F_ACC_SWMR_WRITE();
+
     private static native final int H5F_CLOSE_DEFAULT();
 
     private static native final int H5F_CLOSE_SEMI();
diff --git a/java/src/jni/h5Constants.c b/java/src/jni/h5Constants.c
index ffde130..976a224 100644
--- a/java/src/jni/h5Constants.c
+++ b/java/src/jni/h5Constants.c
@@ -363,6 +363,10 @@ JNIEXPORT jint JNICALL
 Java_hdf_hdf5lib_HDF5Constants_H5F_1ACC_1TRUNC(JNIEnv *env, jclass cls) { return H5F_ACC_TRUNC; }
 JNIEXPORT jint JNICALL 
 Java_hdf_hdf5lib_HDF5Constants_H5F_1ACC_1DEFAULT(JNIEnv *env, jclass cls) { return H5F_ACC_DEFAULT; }
+JNIEXPORT jint JNICALL 
+Java_hdf_hdf5lib_HDF5Constants_H5F_1ACC_1SWMR_1READ(JNIEnv *env, jclass cls) { return H5F_ACC_SWMR_READ; }
+JNIEXPORT jint JNICALL 
+Java_hdf_hdf5lib_HDF5Constants_H5F_1ACC_1SWMR_1WRITE(JNIEnv *env, jclass cls) { return H5F_ACC_SWMR_WRITE; }
 #pragma GCC diagnostic pop
 
 JNIEXPORT jint JNICALL 
diff --git a/java/src/jni/h5fImp.c b/java/src/jni/h5fImp.c
index d4b3a3c..058ba26 100644
--- a/java/src/jni/h5fImp.c
+++ b/java/src/jni/h5fImp.c
@@ -538,6 +538,19 @@ Java_hdf_hdf5lib_H5_H5Fclear_1elink_1file_1cache
 
 /*
  * Class:     hdf_hdf5lib_H5
+ * Method:    H5Fstart_swmr_write
+ * Signature: (J)V
+ */
+JNIEXPORT void JNICALL
+Java_hdf_hdf5lib_H5_H5Fstart_1swmr_1write
+	(JNIEnv *env, jclass cls, jlong file_id)
+{
+    if (H5Fstart_swmr_write((hid_t)file_id) < 0)
+        h5libraryError(env);
+} /* end Java_hdf_hdf5lib_H5_H5Fstart_1swmr_1write */
+
+/*
+ * Class:     hdf_hdf5lib_H5
  * Method:    H5Fstart_mdc_logging
  * Signature: (J)V
  */
diff --git a/java/src/jni/h5fImp.h b/java/src/jni/h5fImp.h
index b88e491..7aff835 100644
--- a/java/src/jni/h5fImp.h
+++ b/java/src/jni/h5fImp.h
@@ -214,6 +214,15 @@ Java_hdf_hdf5lib_H5_H5Fclear_1elink_1file_1cache
 
 /*
  * Class:     hdf_hdf5lib_H5
+ * Method:    H5Fstart_swmr_write
+ * Signature: (J)V
+ */
+JNIEXPORT void JNICALL 
+Java_hdf_hdf5lib_H5_H5Fstart_1swmr_1write
+  (JNIEnv *, jclass, jlong);
+
+/*
+ * Class:     hdf_hdf5lib_H5
  * Method:    H5Fstart_mdc_logging
  * Signature: (J)V
  */
diff --git a/java/test/CMakeLists.txt b/java/test/CMakeLists.txt
index 8cb41f7..b3a996b 100644
--- a/java/test/CMakeLists.txt
+++ b/java/test/CMakeLists.txt
@@ -16,6 +16,7 @@ set (HDF5_JAVA_TEST_SOURCES
     TestH5Fparams.java
     TestH5Fbasic.java
     TestH5F.java
+    TestH5Fswmr.java
     TestH5Gbasic.java
     TestH5G.java
     TestH5Giterate.java
diff --git a/java/test/JUnit-interface.txt b/java/test/JUnit-interface.txt
index 05814cd..7fd80f8 100644
--- a/java/test/JUnit-interface.txt
+++ b/java/test/JUnit-interface.txt
@@ -93,6 +93,8 @@ JUnit version 4.11
 .testH5Fget_intent_rdonly
 .testH5Fget_create_plist
 .testH5Fget_obj_count
+.testH5Fstart_swmr_write
+.testH5Fswmr_read_attempts
 .testH5Gget_info_by_name_not_exists
 .testH5Gget_info_by_idx_not_exists
 .testH5Gget_info_by_name
@@ -635,7 +637,7 @@ JUnit version 4.11
 
 Time:  XXXX
 
-OK (633 tests)
+OK (635 tests)
 
 HDF5-DIAG: Error detected in HDF5 (version (number)) thread (IDs):
   #000: (file name) line (number) in H5Fopen(): can't set access and transfer property lists
diff --git a/java/test/Makefile.am b/java/test/Makefile.am
index 9f29f1c..92ac12d 100644
--- a/java/test/Makefile.am
+++ b/java/test/Makefile.am
@@ -43,6 +43,7 @@ noinst_JAVA = \
     TestH5Fparams.java \
     TestH5Fbasic.java \
     TestH5F.java \
+    TestH5Fswmr.java \
     TestH5Gbasic.java \
     TestH5G.java \
     TestH5Giterate.java \
diff --git a/java/test/TestAll.java b/java/test/TestAll.java
index e3abe21..a4b44c3 100644
--- a/java/test/TestAll.java
+++ b/java/test/TestAll.java
@@ -23,7 +23,7 @@ import org.junit.runners.Suite;
         TestH5Eregister.class,
         TestH5Edefault.class,
         TestH5E.class,
-        TestH5Fparams.class, TestH5Fbasic.class, TestH5F.class,
+        TestH5Fparams.class, TestH5Fbasic.class, TestH5F.class, TestH5Fswmr.class,
         TestH5Gbasic.class, TestH5G.class, TestH5Giterate.class,
         TestH5Sbasic.class, TestH5S.class,
         TestH5Tparams.class, TestH5Tbasic.class, TestH5T.class,
diff --git a/java/test/TestH5Fswmr.java b/java/test/TestH5Fswmr.java
new file mode 100644
index 0000000..b65ebf2
--- /dev/null
+++ b/java/test/TestH5Fswmr.java
@@ -0,0 +1,118 @@
+/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
+ * Copyright by The HDF Group.                                               *
+ * Copyright by the Board of Trustees of the University of Illinois.         *
+ * All rights reserved.                                                      *
+ *                                                                           *
+ * This file is part of HDF5.  The full HDF5 copyright notice, including     *
+ * terms governing use, modification, and redistribution, is contained in    *
+ * the files COPYING and Copyright.html.  COPYING can be found at the root   *
+ * of the source code distribution tree; Copyright.html can be found at the  *
+ * root level of an installed copy of the electronic HDF5 document set and   *
+ * is linked from the top-level documents page.  It can also be found at     *
+ * http://hdfgroup.org/HDF5/doc/Copyright.html.  If you do not have          *
+ * access to either file, you may request a copy from help@hdfgroup.org.     *
+ * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
+
+package test;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertTrue;
+import static org.junit.Assert.fail;
+
+import java.io.File;
+
+import hdf.hdf5lib.H5;
+import hdf.hdf5lib.HDF5Constants;
+import hdf.hdf5lib.exceptions.HDF5LibraryException;
+
+import org.junit.After;
+import org.junit.Before;
+import org.junit.Rule;
+import org.junit.Test;
+import org.junit.rules.TestName;
+
+public class TestH5Fswmr {
+    @Rule public TestName testname = new TestName();
+    private static final String H5_FILE = "testswmr.h5";
+
+    long H5fid = -1;
+    long H5fapl = -1;
+    long H5fcpl = -1;
+
+    private final void _deleteFile(String filename) {
+        File file = new File(filename);
+
+        if (file.exists()) {
+            try {file.delete();} catch (SecurityException e) {}
+        }
+    }
+
+    @Before
+    public void createH5file()
+            throws HDF5LibraryException, NullPointerException {
+        assertTrue("H5 open ids is 0",H5.getOpenIDCount()==0);
+        System.out.print(testname.getMethodName());
+
+        H5fapl = H5.H5Pcreate(HDF5Constants.H5P_FILE_ACCESS);
+        H5fcpl = H5.H5Pcreate(HDF5Constants.H5P_FILE_CREATE);
+        H5.H5Pset_libver_bounds(H5fapl, HDF5Constants.H5F_LIBVER_LATEST, HDF5Constants.H5F_LIBVER_LATEST);
+
+        H5fid = H5.H5Fcreate(H5_FILE, HDF5Constants.H5F_ACC_TRUNC, H5fcpl, H5fapl);
+        H5.H5Fflush(H5fid, HDF5Constants.H5F_SCOPE_LOCAL);
+    }
+
+    @After
+    public void deleteH5file() throws HDF5LibraryException {
+        if (H5fapl > 0) {
+            try {H5.H5Pclose(H5fapl);} catch (Exception ex) {}
+            H5fapl = -1;
+        }
+        if (H5fcpl > 0) {
+            try {H5.H5Pclose(H5fcpl);} catch (Exception ex) {}
+            H5fcpl = -1;
+        }
+       if (H5fid > 0) {
+            try {H5.H5Fclose(H5fid);} catch (Exception ex) {}
+            H5fid = -1;
+        }
+        _deleteFile(H5_FILE);
+        System.out.println();
+    }
+
+    @Test
+    public void testH5Fstart_swmr_write() {
+        try {
+            H5.H5Fstart_swmr_write(H5fid);
+        }
+        catch (Throwable err) {
+            fail("H5.H5Fstart_swmr_write: " + err);
+        }
+    }
+
+    @Test
+    public void testH5Fswmr_read_attempts() {
+        long read_attempts = 0;
+
+        try {
+            read_attempts = H5.H5Pget_metadata_read_attempts(H5fapl);
+        }
+        catch (Throwable err) {
+            fail("H5.testH5Fswmr_read_attempts: " + err);
+        }
+        assertTrue(read_attempts == 1);
+
+        try {
+            H5.H5Pset_metadata_read_attempts(H5fapl, 20);
+        }
+        catch (Throwable err) {
+            fail("H5.testH5Fswmr_read_attempts: " + err);
+        }
+        try {
+            read_attempts = H5.H5Pget_metadata_read_attempts(H5fapl);
+        }
+        catch (Throwable err) {
+            fail("H5.testH5Fswmr_read_attempts: " + err);
+        }
+        assertTrue(read_attempts == 20);
+    }
+}