[ismrmrd] 225/281: adding close() method to IsmrmrdDataset for Python bindings

[Ghislain Vaillant]

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ghisvail-guest pushed a commit to annotated tag ismrmrd0.5
in repository ismrmrd.

commit 688fb6a72062b566db7f1568d1cbec2b719e3f40
Author: Joseph Naegele <joseph.naegele at gmail.com>
Date:   Thu Apr 24 10:34:00 2014 -0400

    adding close() method to IsmrmrdDataset for Python bindings
---
 ismrmrd_hdf5.cpp | 14 ++++++++++++++
 ismrmrd_hdf5.h   |  9 +++++++++
 2 files changed, 23 insertions(+)

diff --git a/ismrmrd_hdf5.cpp b/ismrmrd_hdf5.cpp
index fc40770..1b6c362 100644
--- a/ismrmrd_hdf5.cpp
+++ b/ismrmrd_hdf5.cpp
@@ -50,6 +50,20 @@ int IsmrmrdDataset::openHDF5File()
 	return 0;
 }
 
+void IsmrmrdDataset::close(void)
+{
+    if (file_open_) {
+        dataset_->flush(H5F_SCOPE_LOCAL);
+        dataset_->close();
+        dataset_.reset();
+        file_->flush(H5F_SCOPE_LOCAL);
+        file_->close();
+        file_.reset();
+        file_open_ = false;
+    }
+}
+
+
 
 bool IsmrmrdDataset::linkExists(const char* name)
 {
diff --git a/ismrmrd_hdf5.h b/ismrmrd_hdf5.h
index 538eaba..eba98bf 100644
--- a/ismrmrd_hdf5.h
+++ b/ismrmrd_hdf5.h
@@ -87,6 +87,15 @@ public:
 		data_path_ = groupname_ + std::string("/data");
  	}
 
+        /**
+         * Closes all references to the underlying HDF5 file.
+         *
+         *  This method does not NEED to be called. It is most useful in
+         *  a Python interpreter when a dataset instance has not been
+         *  garbage collected but another process needs to read the HDF5 file.
+         */
+        void close(void);
+
 	/**
 	 *   Appends and NMR/MRI acquisition to the data set.
 	 *

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