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+/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
+ * 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 COPYING file, which can be found at the root of the source code *
+ * distribution tree, or in https://support.hdfgroup.org/ftp/HDF5/releases. *
+ * If you do not have access to either file, you may request a copy from *
+ * help@hdfgroup.org. *
+ * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
+
+#include "hdf5_hl.h"
+#include <stdlib.h>
+
+/*-------------------------------------------------------------------------
+ * Packet Table Fixed-Length Example
+ *
+ * Example program that creates a packet table and performs
+ * writes and reads.
+ *
+ *-------------------------------------------------------------------------
+ */
+
+int main(void)
+{
+ hid_t fid; /* File identifier */
+ hid_t ptable; /* Packet table identifier */
+
+ herr_t err; /* Function return status */
+ hsize_t count; /* Number of records in the table */
+
+ int x; /* Loop variable */
+
+ /* Buffers to hold data */
+ int writeBuffer[5];
+ int readBuffer[5];
+
+ /* Initialize buffers */
+ for(x=0; x<5; x++)
+ {
+ writeBuffer[x]=x;
+ readBuffer[x] = -1;
+ }
+
+ /* Create a file using default properties */
+ fid=H5Fcreate("packet_table_FLexample.h5",H5F_ACC_TRUNC,H5P_DEFAULT,H5P_DEFAULT);
+
+ /* Create a fixed-length packet table within the file */
+ /* This table's "packets" will be simple integers and it will use compression
+ * level 5. */
+ ptable = H5PTcreate_fl(fid, "Packet Test Dataset", H5T_NATIVE_INT, (hsize_t)100, 5);
+ if(ptable == H5I_INVALID_HID)
+ goto out;
+
+ /* Write one packet to the packet table */
+ err = H5PTappend(ptable, (hsize_t)1, &(writeBuffer[0]) );
+ if(err < 0)
+ goto out;
+
+ /* Write several packets to the packet table */
+ err = H5PTappend(ptable, (hsize_t)4, &(writeBuffer[1]) );
+ if(err < 0)
+ goto out;
+
+ /* Get the number of packets in the packet table. This should be five. */
+ err = H5PTget_num_packets(ptable, &count);
+ if(err < 0)
+ goto out;
+
+ printf("Number of packets in packet table after five appends: %d\n", (int)count);
+
+ /* Initialize packet table's "current record" */
+ err = H5PTcreate_index(ptable);
+ if(err < 0)
+ goto out;
+
+ /* Iterate through packets, read each one back */
+ for(x=0; x<5; x++)
+ {
+ err = H5PTget_next(ptable, (hsize_t)1, &(readBuffer[x]) );
+ if(err < 0)
+ goto out;
+
+ printf("Packet %d's value is %d\n", x, readBuffer[x]);
+ }
+
+ /* Close the packet table */
+ err = H5PTclose(ptable);
+ if(err < 0)
+ goto out;
+
+ /* Close the file */
+ H5Fclose(fid);
+
+ return 0;
+
+ out: /* An error has occurred. Clean up and exit. */
+ H5PTclose(ptable);
+ H5Fclose(fid);
+ return -1;
+}
+