[svn-r24091] Start adding infrastructure for Transaction and Read Context changes

14 files changed, 1673 insertions, 17 deletions

diff --git a/src/H5Ipublic.h b/src/H5Ipublic.h
index 02693f0..3c614c2 100644
--- a/src/H5Ipublic.h
+++ b/src/H5Ipublic.h
@@ -47,6 +47,8 @@ typedef enum H5I_type_t {
     H5I_VFL,			/*type ID for virtual file layer	    */
     H5I_VOL,			/*type ID for virtual object layer	    */
     H5I_EQ,		        /*type ID for Event Queue objects           */
+    H5I_RC,		        /*type ID for Read Context objects          */
+    H5I_TR,		        /*type ID for Transaction objects           */
     H5I_GENPROP_CLS,            /*type ID for generic property list classes */
     H5I_GENPROP_LST,            /*type ID for generic property lists        */
     H5I_ERROR_CLASS,            /*type ID for error classes		    */
diff --git a/src/H5Pint.c b/src/H5Pint.c
index dfc6e2e..64d283c 100644
--- a/src/H5Pint.c
+++ b/src/H5Pint.c
@@ -122,7 +122,10 @@ hid_t H5P_CLS_ATTRIBUTE_CREATE_g    = FAIL;
 hid_t H5P_CLS_OBJECT_COPY_g         = FAIL;
 hid_t H5P_CLS_LINK_CREATE_g         = FAIL;
 hid_t H5P_CLS_LINK_ACCESS_g         = FAIL;
-hid_t H5P_CLS_STRING_CREATE_g         = FAIL;
+hid_t H5P_CLS_STRING_CREATE_g       = FAIL;
+hid_t H5P_CLS_READ_CONTEXT_ACQUIRE_g = FAIL;
+hid_t H5P_CLS_TRANSACTION_START_g   = FAIL;
+hid_t H5P_CLS_TRANSACTION_FINISH_g  = FAIL;
 
 /*
  * Predefined property lists for each predefined class. These are initialized
@@ -142,6 +145,9 @@ hid_t H5P_LST_ATTRIBUTE_CREATE_g    = FAIL;
 hid_t H5P_LST_OBJECT_COPY_g         = FAIL;
 hid_t H5P_LST_LINK_CREATE_g         = FAIL;
 hid_t H5P_LST_LINK_ACCESS_g         = FAIL;
+hid_t H5P_LST_READ_CONTEXT_ACQUIRE_g = FAIL;
+hid_t H5P_LST_TRANSACTION_START_g   = FAIL;
+hid_t H5P_LST_TRANSACTION_FINISH_g  = FAIL;
 
 /* Root property list class library initialization object */
 const H5P_libclass_t H5P_CLS_ROOT[1] = {{
@@ -210,6 +216,22 @@ const H5P_libclass_t H5P_CLS_TACC[1] = {{
     NULL 		        /* Class close callback info    */
 }};
 
+/* Transaction finish property list class library initialization object */
+/* (move to proper source code file when used for real) */
+const H5P_libclass_t H5P_CLS_TRFCC[1] = {{
+    "transaction finish",	/* Class name for debugging     */
+    H5P_TYPE_TRANSACTION_FINISH,         /* Class type                   */
+    &H5P_CLS_ROOT_g,            	/* Parent class ID              */
+    &H5P_CLS_TRANSACTION_FINISH_g,	/* Pointer to class ID          */
+    &H5P_LST_TRANSACTION_FINISH_g,	/* Pointer to default property list ID */
+    NULL,			/* Default property registration routine */
+    NULL,		        /* Class creation callback      */
+    NULL,		        /* Class creation callback info */
+    NULL,			/* Class copy callback          */
+    NULL,		        /* Class copy callback info     */
+    NULL,			/* Class close callback         */
+    NULL 		        /* Class close callback info    */
+}};
 
 /* Library property list classes defined in other code modules */
 H5_DLLVAR const H5P_libclass_t H5P_CLS_OCRT[1];         /* Object creation */
@@ -225,7 +247,9 @@ H5_DLLVAR const H5P_libclass_t H5P_CLS_DXFR[1];         /* Data transfer */
 H5_DLLVAR const H5P_libclass_t H5P_CLS_FMNT[1];         /* File mount */
 H5_DLLVAR const H5P_libclass_t H5P_CLS_ACRT[1];         /* Attribute creation */
 H5_DLLVAR const H5P_libclass_t H5P_CLS_LCRT[1];         /* Link creation */
-
+H5_DLLVAR const H5P_libclass_t H5P_CLS_RCACC[1];        /* Read Context acquire */
+H5_DLLVAR const H5P_libclass_t H5P_CLS_TRSCC[1];        /* Transaction start */
+//H5_DLLVAR const H5P_libclass_t H5P_CLS_TRFCC[1];        /* Transaction finish */
 
 /*****************************/
 /* Library Private Variables */
@@ -261,6 +285,9 @@ static H5P_libclass_t const * const init_class[] = {
     H5P_CLS_TCRT,       /* Datatype creation */
     H5P_CLS_TACC,       /* Datatype access */
     H5P_CLS_ACRT,       /* Attribute creation */
+    H5P_CLS_RCACC,      /* Read Context acquire */
+    H5P_CLS_TRSCC,      /* Transaction start */
+    H5P_CLS_TRFCC,      /* Transaction finish */
     H5P_CLS_LCRT        /* Link creation */
 };
 
@@ -582,6 +609,9 @@ H5P_term_interface(void)
                         H5P_LST_OBJECT_COPY_g =
                         H5P_LST_LINK_CREATE_g =
                         H5P_LST_LINK_ACCESS_g =
+                        H5P_LST_READ_CONTEXT_ACQUIRE_g =
+                        H5P_LST_TRANSACTION_START_g =
+                        H5P_LST_TRANSACTION_FINISH_g =
                         H5P_LST_FILE_MOUNT_g = (-1);
                 } /* end if */
             } /* end if */
@@ -608,6 +638,9 @@ H5P_term_interface(void)
                         H5P_CLS_OBJECT_COPY_g =
                         H5P_CLS_LINK_CREATE_g =
                         H5P_CLS_LINK_ACCESS_g =
+                        H5P_CLS_READ_CONTEXT_ACQUIRE_g = 
+                        H5P_CLS_TRANSACTION_START_g =
+                        H5P_CLS_TRANSACTION_FINISH_g = 
                         H5P_CLS_FILE_MOUNT_g = (-1);
                 } /* end if */
             } /* end if */
@@ -5135,6 +5168,18 @@ H5P__new_plist_of_type(H5P_plist_type_t type)
             class_id = H5P_CLS_LINK_ACCESS_g;
             break;
 
+        case H5P_TYPE_READ_CONTEXT_ACQUIRE:
+            class_id = H5P_CLS_READ_CONTEXT_ACQUIRE_g;
+            break;
+
+        case H5P_TYPE_TRANSACTION_START:
+            class_id = H5P_CLS_TRANSACTION_START_g;
+            break;
+
+        case H5P_TYPE_TRANSACTION_FINISH:
+            class_id = H5P_CLS_TRANSACTION_FINISH_g;
+            break;
+
         case H5P_TYPE_USER:     /* shut compiler warnings up */
         case H5P_TYPE_ROOT:
         case H5P_TYPE_MAX_TYPE:
diff --git a/src/H5Pprivate.h b/src/H5Pprivate.h
index 93b57ef..f258357 100644
--- a/src/H5Pprivate.h
+++ b/src/H5Pprivate.h
@@ -67,7 +67,10 @@ typedef enum H5P_plist_type_t {
     H5P_TYPE_ATTRIBUTE_CREATE  = 14,
     H5P_TYPE_OBJECT_COPY       = 15,
     H5P_TYPE_LINK_CREATE       = 16,
-    H5P_TYPE_LINK_ACCESS       = 17,
+    H5P_TYPE_READ_CONTEXT_ACQUIRE = 17,
+    H5P_TYPE_TRANSACTION_START   = 18,
+    H5P_TYPE_TRANSACTION_FINISH  = 19,
+    H5P_TYPE_LINK_ACCESS       = 20,
     H5P_TYPE_MAX_TYPE
 } H5P_plist_type_t;
 
diff --git a/src/H5Ppublic.h b/src/H5Ppublic.h
index 882b195..e395f22 100644
--- a/src/H5Ppublic.h
+++ b/src/H5Ppublic.h
@@ -69,6 +69,9 @@
 #define H5P_OBJECT_COPY	 		(H5OPEN H5P_CLS_OBJECT_COPY_g)
 #define H5P_LINK_CREATE 		(H5OPEN H5P_CLS_LINK_CREATE_g)
 #define H5P_LINK_ACCESS 		(H5OPEN H5P_CLS_LINK_ACCESS_g)
+#define H5P_RC_ACQUIRE  		(H5OPEN H5P_CLS_READ_CONTEXT_ACQUIRE_g)
+#define H5P_TR_START    		(H5OPEN H5P_CLS_TRANSACTION_START_g)
+#define H5P_TR_FINISH   		(H5OPEN H5P_CLS_TRANSACTION_FINISH_g)
 
 /*
  * The library's default property lists
@@ -87,6 +90,9 @@
 #define H5P_OBJECT_COPY_DEFAULT		(H5OPEN H5P_LST_OBJECT_COPY_g)
 #define H5P_LINK_CREATE_DEFAULT		(H5OPEN H5P_LST_LINK_CREATE_g)
 #define H5P_LINK_ACCESS_DEFAULT		(H5OPEN H5P_LST_LINK_ACCESS_g)
+#define H5P_RC_ACQUIRE_DEFAULT		(H5OPEN H5P_LST_READ_CONTEXT_ACQUIRE_g)
+#define H5P_TR_START_DEFAULT		(H5OPEN H5P_LST_TRANSACTION_START_g)
+#define H5P_TR_FINISH_DEFAULT		(H5OPEN H5P_LST_TRANSACTION_FINISH_g)
 
 /* Common creation order flags (for links in groups and attributes on objects) */
 #define H5P_CRT_ORDER_TRACKED           0x0001
@@ -190,6 +196,9 @@ H5_DLLVAR hid_t H5P_CLS_ATTRIBUTE_CREATE_g;
 H5_DLLVAR hid_t H5P_CLS_OBJECT_COPY_g;
 H5_DLLVAR hid_t H5P_CLS_LINK_CREATE_g;
 H5_DLLVAR hid_t H5P_CLS_LINK_ACCESS_g;
+H5_DLLVAR hid_t H5P_CLS_READ_CONTEXT_ACQUIRE_g;
+H5_DLLVAR hid_t H5P_CLS_TRANSACTION_START_g;
+H5_DLLVAR hid_t H5P_CLS_TRANSACTION_FINISH_g;
 
 /* Default roperty list IDs */
 /* (Internal to library, do not use!  Use macros above) */
@@ -207,6 +216,9 @@ H5_DLLVAR hid_t H5P_LST_ATTRIBUTE_CREATE_g;
 H5_DLLVAR hid_t H5P_LST_OBJECT_COPY_g;
 H5_DLLVAR hid_t H5P_LST_LINK_CREATE_g;
 H5_DLLVAR hid_t H5P_LST_LINK_ACCESS_g;
+H5_DLLVAR hid_t H5P_LST_READ_CONTEXT_ACQUIRE_g;
+H5_DLLVAR hid_t H5P_LST_TRANSACTION_START_g;
+H5_DLLVAR hid_t H5P_LST_TRANSACTION_FINISH_g;
 
 /*********************/
 /* Public Prototypes */
diff --git a/src/H5Prcapl.c b/src/H5Prcapl.c
new file mode 100644
index 0000000..590d9b5
--- /dev/null
+++ b/src/H5Prcapl.c
@@ -0,0 +1,131 @@
+/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
+ * 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.     *
+ * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
+
+/*-------------------------------------------------------------------------
+ *
+ * Created:		H5Prcapl.c
+ *			August 2013
+ *			Mohamad Chaarawi <chaarawi@hdfgroup.org>
+ *
+ * Purpose:		Read Context Acquire property list class routines
+ *
+ *-------------------------------------------------------------------------
+ */
+
+/****************/
+/* Module Setup */
+/****************/
+#define H5P_PACKAGE		/*suppress error about including H5Ppkg	  */
+
+
+/***********/
+/* Headers */
+/***********/
+#include "H5private.h"		/* Generic Functions */
+#include "H5Eprivate.h"		/* Error handling */
+#include "H5Iprivate.h"		/* IDs */
+#include "H5Ppkg.h"		/* Property lists */
+#include "H5RCprivate.h"	/* Read Context */
+
+/****************/
+/* Local Macros */
+/****************/
+
+/* ========= Read Context properties ============ */
+/* Definitions for Container Version being Acquired  */
+#define H5RC_ACQUIRE_CV_REQUEST_SIZE      sizeof(H5RC_request_t)
+#define H5RC_ACQUIRE_CV_REQUEST_DEF       H5RC_EXACT
+#define H5RC_ACQUIRE_CV_REQUEST_ENC       H5P__encode_uint8_t
+#define H5RC_ACQUIRE_CV_REQUEST_DEC       H5P__decode_uint8_t
+
+/******************/
+/* Local Typedefs */
+/******************/
+
+
+/********************/
+/* Package Typedefs */
+/********************/
+
+
+/********************/
+/* Local Prototypes */
+/********************/
+
+/* Property class callbacks */
+static herr_t H5P__rcacc_reg_prop(H5P_genclass_t *pclass);
+
+
+/*********************/
+/* Package Variables */
+/*********************/
+
+/* Read Context acquire property list class library initialization object */
+const H5P_libclass_t H5P_CLS_RCACC[1] = {{
+    "read context acquire",	        /* Class name for debugging     */
+    H5P_TYPE_READ_CONTEXT_ACQUIRE,       /* Class type                   */
+    &H5P_CLS_ROOT_g,            	/* Parent class ID              */
+    &H5P_CLS_READ_CONTEXT_ACQUIRE_g,	/* Pointer to class ID          */
+    &H5P_LST_READ_CONTEXT_ACQUIRE_g,	/* Pointer to default property list ID */
+    H5P__rcacc_reg_prop,		/* Default property registration routine */
+    NULL,		                /* Class creation callback      */
+    NULL,		                /* Class creation callback info */
+    NULL,		                /* Class copy callback          */
+    NULL,		                /* Class copy callback info     */
+    NULL,		                /* Class close callback         */
+    NULL 		                /* Class close callback info    */
+}};
+
+
+/*****************************/
+/* Library Private Variables */
+/*****************************/
+
+
+/*******************/
+/* Local Variables */
+/*******************/
+
+
+
+/*-------------------------------------------------------------------------
+ * Function:    H5P__rcacc_reg_prop
+ *
+ * Purpose:     Register the read context acquire property list class's
+ *              properties
+ *
+ * Return:      Non-negative on success/Negative on failure
+ *
+ * Programmer:  Mohamad Chaarawi
+ *              August 2013
+ *-------------------------------------------------------------------------
+ */
+static herr_t
+H5P__rcacc_reg_prop(H5P_genclass_t *pclass)
+{
+    H5RC_request_t acquire_req = H5RC_ACQUIRE_CV_REQUEST_DEF;
+    herr_t ret_value = SUCCEED;         /* Return value */
+
+    FUNC_ENTER_STATIC
+
+    /* Register the size of raw data chunk cache (elements) */
+    if(H5P_register_real(pclass, H5RC_ACQUIRE_CV_REQUEST_NAME, H5RC_ACQUIRE_CV_REQUEST_SIZE, &acquire_req, 
+                         NULL, NULL, NULL, H5RC_ACQUIRE_CV_REQUEST_ENC, H5RC_ACQUIRE_CV_REQUEST_DEC, 
+                         NULL, NULL, NULL, NULL) < 0)
+         HGOTO_ERROR(H5E_PLIST, H5E_CANTINSERT, FAIL, "can't insert property into class")
+
+done:
+    FUNC_LEAVE_NOAPI(ret_value)
+} /* end H5P__trscc_reg_prop() */
diff --git a/src/H5Ptrspl.c b/src/H5Ptrspl.c
new file mode 100644
index 0000000..aba5b3c
--- /dev/null
+++ b/src/H5Ptrspl.c
@@ -0,0 +1,131 @@
+/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
+ * 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.     *
+ * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
+
+/*-------------------------------------------------------------------------
+ *
+ * Created:		H5Ptrspl.c
+ *			August 2013
+ *			Mohamad Chaarawi <chaarawi@hdfgroup.org>
+ *
+ * Purpose:		Transaction Start property list class routines
+ *
+ *-------------------------------------------------------------------------
+ */
+
+/****************/
+/* Module Setup */
+/****************/
+#define H5P_PACKAGE		/*suppress error about including H5Ppkg	  */
+
+
+/***********/
+/* Headers */
+/***********/
+#include "H5private.h"		/* Generic Functions */
+#include "H5Eprivate.h"		/* Error handling */
+#include "H5Iprivate.h"		/* IDs */
+#include "H5Ppkg.h"		/* Property lists */
+#include "H5TRprivate.h"	/* Read Context */
+
+/****************/
+/* Local Macros */
+/****************/
+
+/* ========= Read Context properties ============ */
+/* Definitions for Transaction being started  */
+#define H5TR_START_NUM_PEERS_SIZE      sizeof(unsigned)
+#define H5TR_START_NUM_PEERS_DEF       0
+#define H5TR_START_NUM_PEERS_ENC       H5P__encode_unsigned
+#define H5TR_START_NUM_PEERS_DEC       H5P__decode_unsigned
+
+/******************/
+/* Local Typedefs */
+/******************/
+
+
+/********************/
+/* Package Typedefs */
+/********************/
+
+
+/********************/
+/* Local Prototypes */
+/********************/
+
+/* Property class callbacks */
+static herr_t H5P__trscc_reg_prop(H5P_genclass_t *pclass);
+
+
+/*********************/
+/* Package Variables */
+/*********************/
+
+/* Transaction start property list class library initialization object */
+const H5P_libclass_t H5P_CLS_TRSCC[1] = {{
+    "transaction start",	        /* Class name for debugging     */
+    H5P_TYPE_TRANSACTION_START,         /* Class type                   */
+    &H5P_CLS_ROOT_g,            	/* Parent class ID              */
+    &H5P_CLS_TRANSACTION_START_g,	/* Pointer to class ID          */
+    &H5P_LST_TRANSACTION_START_g,	/* Pointer to default property list ID */
+    H5P__trscc_reg_prop,		/* Default property registration routine */
+    NULL,		                /* Class creation callback      */
+    NULL,		                /* Class creation callback info */
+    NULL,		                /* Class copy callback          */
+    NULL,		                /* Class copy callback info     */
+    NULL,		                /* Class close callback         */
+    NULL 		                /* Class close callback info    */
+}};
+
+
+/*****************************/
+/* Library Private Variables */
+/*****************************/
+
+
+/*******************/
+/* Local Variables */
+/*******************/
+
+
+
+/*-------------------------------------------------------------------------
+ * Function:    H5P__trscc_reg_prop
+ *
+ * Purpose:     Register the transaction start property list class's
+ *              properties
+ *
+ * Return:      Non-negative on success/Negative on failure
+ *
+ * Programmer:  Mohamad Chaarawi
+ *              August 2013
+ *-------------------------------------------------------------------------
+ */
+static herr_t
+H5P__trscc_reg_prop(H5P_genclass_t *pclass)
+{
+    unsigned num_peers = H5TR_START_NUM_PEERS_DEF;
+    herr_t ret_value = SUCCEED;         /* Return value */
+
+    FUNC_ENTER_STATIC
+
+    /* Register the size of raw data chunk cache (elements) */
+    if(H5P_register_real(pclass, H5TR_START_NUM_PEERS_NAME, H5TR_START_NUM_PEERS_SIZE, &num_peers, 
+                         NULL, NULL, NULL, H5TR_START_NUM_PEERS_ENC, H5TR_START_NUM_PEERS_DEC, 
+                         NULL, NULL, NULL, NULL) < 0)
+         HGOTO_ERROR(H5E_PLIST, H5E_CANTINSERT, FAIL, "can't insert property into class")
+
+done:
+    FUNC_LEAVE_NOAPI(ret_value)
+} /* end H5P__trscc_reg_prop() */
diff --git a/src/H5RC.c b/src/H5RC.c
new file mode 100644
index 0000000..f07cedb
--- /dev/null
+++ b/src/H5RC.c
@@ -0,0 +1,462 @@
+/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
+ * Copyright by The HDF Group.                                               *
+ * 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.     *
+ * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
+
+/*
+ * Programmer:  Mohamad Chaarawi <chaarawi@hdfgroup.org>
+ *              August, 2013
+ *
+ * Purpose:	Read Context APIs to support Exascale FastForward
+ *              functionality.
+ *              
+ */
+
+
+/****************/
+/* Module Setup */
+/****************/
+
+/* Interface initialization */
+#define H5_INTERFACE_INIT_FUNC	H5RC_init_interface
+
+/***********/
+/* Headers */
+/***********/
+#include "H5private.h"		/* Generic Functions			*/
+#include "H5Eprivate.h"		/* Error handling		  	*/
+#include "H5EQprivate.h"        /* Event Queues                         */
+#include "H5RCprivate.h"        /* Read Contexts                         */
+#include "H5Iprivate.h"		/* IDs			  		*/
+#include "H5MMprivate.h"	/* Memory management			*/
+#include "H5VLprivate.h"	/* VOL plugins				*/
+
+
+/****************/
+/* Local Macros */
+/****************/
+
+
+/******************/
+/* Local Typedefs */
+/******************/
+
+
+/********************/
+/* Local Prototypes */
+/********************/
+
+
+/*********************/
+/* Package Variables */
+/*********************/
+
+
+/*****************************/
+/* Library Private Variables */
+/*****************************/
+
+
+/*******************/
+/* Local Variables */
+/*******************/
+
+/* Declare a free list to manage the H5RC_t struct */
+H5FL_DEFINE(H5RC_t);
+
+/* Dataspace ID class */
+static const H5I_class_t H5I_RC_CLS[1] = {{
+    H5I_RC,        		/* ID class value */
+    0,				/* Class flags */
+    64,				/* Minimum hash size for class */
+    2,				/* # of reserved IDs for class */
+    NULL,                   	/* Callback routine for closing objects of this class */
+    (H5I_free2_t)H5RC_close     /* Callback routine for closing auxilary objects of this class */
+}};
+
+
+
+/*-------------------------------------------------------------------------
+ * Function:	H5RC_init
+ *
+ * Purpose:	Initialize the interface from some other package.
+ *
+ * Return:	Success:	non-negative
+ *		Failure:	negative
+ *
+ * Programmer:	Mohamad Chaarawi
+ *              August 2013
+ *
+ *-------------------------------------------------------------------------
+ */
+herr_t
+H5RC_init(void)
+{
+    herr_t ret_value = SUCCEED;   /* Return value */
+
+    FUNC_ENTER_NOAPI(FAIL)
+    /* FUNC_ENTER() does all the work */
+
+done:
+    FUNC_LEAVE_NOAPI(ret_value)
+} /* end H5RC_init() */
+
+
+/*--------------------------------------------------------------------------
+NAME
+   H5RC_init_interface -- Initialize interface-specific information
+USAGE
+    herr_t H5RC_init_interface()
+
+RETURNS
+    Non-negative on success/Negative on failure
+DESCRIPTION
+    Initializes any interface-specific data or routines.
+
+--------------------------------------------------------------------------*/
+static herr_t
+H5RC_init_interface(void)
+{
+    herr_t ret_value = SUCCEED;   /* Return value */
+
+    FUNC_ENTER_NOAPI_NOINIT
+
+    /* Initialize the atom group for the RC IDs */
+    if(H5I_register_type(H5I_RC_CLS) < 0)
+	HGOTO_ERROR(H5E_DATASPACE, H5E_CANTINIT, FAIL, "unable to initialize interface")
+
+done:
+    FUNC_LEAVE_NOAPI(ret_value)
+} /* end H5RC_init_interface() */
+
+
+/*--------------------------------------------------------------------------
+ NAME
+    H5RC_term_interface
+ PURPOSE
+    Terminate various H5RC objects
+ USAGE
+    void H5RC_term_interface()
+ RETURNS
+    Non-negative on success/Negative on failure
+ DESCRIPTION
+    Release the atom group and any other resources allocated.
+ GLOBAL VARIABLES
+ COMMENTS, BUGS, ASSUMPTIONS
+     Can't report errors...
+ EXAMPLES
+ REVISION LOG
+--------------------------------------------------------------------------*/
+int
+H5RC_term_interface(void)
+{
+    int	n = 0;
+
+    FUNC_ENTER_NOAPI_NOINIT_NOERR
+
+    if(H5_interface_initialize_g) {
+	if((n = H5I_nmembers(H5I_RC))) {
+	    H5I_clear_type(H5I_RC, FALSE, FALSE);
+	} /* end if */
+        else {
+	    /* Free data types */
+	    H5I_dec_type_ref(H5I_RC);
+
+	    /* Shut down interface */
+	    H5_interface_initialize_g = 0;
+	    n = 1; /*H5I*/
+	} /* end else */
+    } /* end if */
+
+    FUNC_LEAVE_NOAPI(n)
+} /* end H5RC_term_interface() */
+
+
+/*-------------------------------------------------------------------------
+ * Function:	H5Pset_rcapl_version_request
+ *
+ * Purpose:	Set the request type for acquring the container version, 
+ *              whether it has to be exactly the one requested (H5RC_EXACT),
+ *              the lowest available greater than the one requested if it is 
+ *              not available (H5RC_NEXT), or the last one available ((H5RC_LAST).
+ *
+ * Return:	Non-negative on success/Negative on failure
+ *
+ * Programmer:  Mohamad Chaarawi
+ *              August 2013
+ *
+ *-------------------------------------------------------------------------
+ */
+herr_t
+H5Pset_rcapl_version_request(hid_t rcapl_id, H5RC_request_t acquire_req)
+{
+    H5P_genplist_t *plist;      /* Property list pointer */
+    herr_t ret_value = SUCCEED; /* return value */
+
+    FUNC_ENTER_API(FAIL)
+
+    if(H5RC_EXACT > acquire_req || H5RC_LAST < acquire_req)
+        HGOTO_ERROR (H5E_ARGS, H5E_BADVALUE, FAIL, "Acquire request can be either H5RC_EXACT, H5RC_NEXT, or H5RC_LAST");
+
+    /* Get the plist structure */
+    if(NULL == (plist = H5P_object_verify(rcapl_id, H5P_RC_ACQUIRE)))
+        HGOTO_ERROR(H5E_ATOM, H5E_BADATOM, FAIL, "can't find object for ID");
+
+    /* Set property */
+    if(H5P_set(plist, H5RC_ACQUIRE_CV_REQUEST_NAME, &acquire_req) < 0)
+        HGOTO_ERROR(H5E_PLIST, H5E_CANTSET,FAIL, "can't set acquire request");
+
+done:
+    FUNC_LEAVE_API(ret_value)
+} /* end H5Pset_rcapl_version_request() */
+
+
+/*-------------------------------------------------------------------------
+ * Function:	H5RCcreate
+ *
+ * Purpose:	Wraps an hid_t around a container version and a file ID.
+ *              The user is responsible for making sure the container version
+ *              is acquired. 
+ *
+ * Return:	Success:	The ID for a new read context.
+ *		Failure:	FAIL
+ *
+ * Programmer:	Mohamad Chaarawi
+ *		August 2013
+ *
+ *-------------------------------------------------------------------------
+ */
+hid_t
+H5RCcreate(hid_t file_id, uint64_t c_version)
+{
+    void *file = NULL;
+    H5VL_t *vol_plugin = NULL;
+    H5RC_t *rc = NULL;
+    hid_t ret_value;
+
+    FUNC_ENTER_API(FAIL)
+
+    /* get the file object */
+    if(NULL == (file = (void *)H5I_object_verify(file_id, H5I_FILE)))
+        HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "not a file ID")
+    /* get the plugin pointer */
+    if (NULL == (vol_plugin = (H5VL_t *)H5I_get_aux(file_id)))
+        HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "ID does not contain VOL information")
+
+    /* create a new read context object */
+    if(NULL == (rc = H5RC_create(file, c_version)))
+	HGOTO_ERROR(H5E_SYM, H5E_CANTCREATE, FAIL, "unable to create read context")
+
+    /* Get an atom for the event queue with the VOL information as the auxilary struct*/
+    if((ret_value = H5I_register2(H5I_RC, rc, vol_plugin, TRUE)) < 0)
+	HGOTO_ERROR(H5E_ATOM, H5E_CANTREGISTER, FAIL, "unable to atomize read context handle")
+
+done:
+    FUNC_LEAVE_API(ret_value)
+} /* end H5RCcreate() */
+
+
+/*-------------------------------------------------------------------------
+ * Function:	H5RC_create
+ *
+ * Purpose:	Private routine for H5RCcreate
+ *
+ * Return:	Success:	RC structure
+ *		Failure:	NULL
+ *
+ * Programmer:	Mohamad Chaarawi
+ *		August 2013
+ *
+ *-------------------------------------------------------------------------
+ */
+H5RC_t *
+H5RC_create(void *file, uint64_t c_version)
+{
+    void *file = NULL;
+    H5VL_t *vol_plugin = NULL;
+    H5RC_t *rc = NULL;
+    H5RC_t *ret_value = NULL;          /* Return value */
+
+    FUNC_ENTER_NOAPI_NOINIT
+
+    /* allocate read context struct */
+    if(NULL == (rc = H5FL_CALLOC(H5RC_t)))
+	HGOTO_ERROR(H5E_SYM, H5E_NOSPACE, NULL, "can't allocate top read context structure")
+
+    rc->file = file;
+    rc->c_version = c_version;
+
+    /* set return value */
+    ret_value = rc;
+
+done:
+    if(!ret_value && rc)
+	rc = H5FL_FREE(H5RC_t, rc);
+
+    FUNC_LEAVE_API(ret_value)
+} /* end H5RC_create() */
+
+hid_t
+H5RCacquire(hid_t file_id, /*IN/OUT*/ uint64_t *c_version, 
+            hid_t rcapl_id, hid_t eq_id)
+{
+    void *file = NULL;
+    H5VL_t *vol_plugin = NULL;
+    H5RC_t *rc = NULL;
+    H5_priv_request_t  *request = NULL; /* private request struct inserted in event queue */
+    void               **req = NULL; /* pointer to plugin generate requests (Stays NULL if plugin does not support async */
+    hid_t ret_value;
+
+    FUNC_ENTER_API(FAIL)
+
+    /* get the file object */
+    if(NULL == (file = (void *)H5I_object_verify(file_id, H5I_FILE)))
+        HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "not a file ID")
+    /* get the plugin pointer */
+    if (NULL == (vol_plugin = (H5VL_t *)H5I_get_aux(file_id)))
+        HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "ID does not contain VOL information")
+
+    /* Get correct property list */
+    if(H5P_DEFAULT == rcapl_id)
+        rcapl_id = H5P_RC_ACQUIRE_DEFAULT;
+    else
+        if(TRUE != H5P_isa_class(rcapl_id, H5P_RC_ACQUIRE))
+            HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not read context acquire property list")
+
+    /* create a new read context object with the provided container
+       version. The container version associated with the RC object
+       might be changed if the version is not available for read. */
+    if(NULL == (rc = H5RC_create(file, *c_version)))
+	HGOTO_ERROR(H5E_SYM, H5E_CANTCREATE, FAIL, "unable to create read context")
+    /* Get an atom for the event queue with the VOL information as the auxilary struct*/
+    if((ret_value = H5I_register2(H5I_RC, rc, vol_plugin, TRUE)) < 0)
+	HGOTO_ERROR(H5E_ATOM, H5E_CANTREGISTER, FAIL, "unable to atomize read context handle")
+
+    if(eq_id != H5_EVENT_QUEUE_NULL) {
+        /* create the private request */
+        if(NULL == (request = (H5_priv_request_t *)H5MM_calloc(sizeof(H5_priv_request_t))))
+            HGOTO_ERROR(H5E_RESOURCE, H5E_NOSPACE, FAIL, "memory allocation failed");
+        request->req = NULL;
+        req = &request->req;
+        request->next = NULL;
+        request->vol_plugin = vol_plugin;
+    }
+
+    if(H5VL_iod_rc_acquire(file, rc, req) < 0)
+        HGOTO_ERROR(H5E_FILE, H5E_CANTINIT, FAIL, "failed to request a read context on container");
+
+    if(request && *req) {
+        if(H5EQinsert(eq_id, request) < 0)
+            HGOTO_ERROR(H5E_VOL, H5E_CANTINIT, FAIL, "failed to insert request in event queue");
+    }
+
+done:
+    FUNC_LEAVE_API(ret_value)
+}
+
+herr_t
+H5RCrelease(hid_t rc_id , hid_t eq_id)
+{
+    H5RC_t *rc = NULL;
+    H5_priv_request_t  *request = NULL; /* private request struct inserted in event queue */
+    void               **req = NULL; /* pointer to plugin generate requests (Stays NULL if plugin does not support async */
+    herr_t ret_value;
+
+    FUNC_ENTER_API(FAIL)
+    H5TRACE2("e", "ii", rc_id, eq_id);
+
+    /* get the RC object */
+    if(NULL == (rc = (H5RC_t *)H5I_object_verify(rc_id, H5I_RC)))
+        HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "not a Read Context ID")
+
+    if(eq_id != H5_EVENT_QUEUE_NULL) {
+        /* create the private request */
+        if(NULL == (request = (H5_priv_request_t *)H5MM_calloc(sizeof(H5_priv_request_t))))
+            HGOTO_ERROR(H5E_RESOURCE, H5E_NOSPACE, FAIL, "memory allocation failed");
+        request->req = NULL;
+        req = &request->req;
+        request->next = NULL;
+        request->vol_plugin = vol_plugin;
+    }
+
+    if(H5VL_iod_rc_release(rc, req) < 0)
+        HGOTO_ERROR(H5E_FILE, H5E_CANTINIT, FAIL, "failed to request a release on a read context on container");
+
+    if(request && *req) {
+        if(H5EQinsert(eq_id, request) < 0)
+            HGOTO_ERROR(H5E_VOL, H5E_CANTINIT, FAIL, "failed to insert request in event queue");
+    }
+
+done:
+    FUNC_LEAVE_API(ret_value)
+}
+
+
+/*-------------------------------------------------------------------------
+ * Function:	H5RCclose
+ *
+ * Purpose:	Closes the specified read context ID.  The ID will no longer be
+ *		valid for accessing the read context.
+ *
+ * Return:	Non-negative on success/Negative on failure
+ *
+ * Programmer:	Mohamad Chaarawi
+ *		August 2013
+ *
+ *-------------------------------------------------------------------------
+ */
+herr_t
+H5RCclose(hid_t rc_id)
+{
+    herr_t ret_value = SUCCEED;         /* Return value */
+
+    FUNC_ENTER_API(FAIL)
+    H5TRACE1("e", "i", rc_id);
+
+    /* Check args */
+    if(NULL == H5I_object_verify(rc_id,H5I_RC))
+	HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not an read context ID")
+
+    if(H5I_dec_app_ref(rc_id) < 0)
+    	HGOTO_ERROR(H5E_SYM, H5E_CANTRELEASE, FAIL, "unable to close read context")
+
+done:
+    FUNC_LEAVE_API(ret_value)
+} /* end H5RCclose() */
+
+
+/*-------------------------------------------------------------------------
+ * Function:	H5RC_close
+ *
+ * Purpose:	Closes the specified read context ID.  The ID will no longer be
+ *		valid for accessing the read context.
+ *
+ * Return:	Non-negative on success/Negative on failure
+ *
+ * Programmer:	Mohamad Chaarawi
+ *		August 2013
+ *
+ *-------------------------------------------------------------------------
+ */
+herr_t
+H5RC_close(H5RC_t *rc)
+{
+    herr_t ret_value = SUCCEED;         /* Return value */
+
+    FUNC_ENTER_API(FAIL)
+
+    rc = H5FL_FREE(H5RC_t, rc);
+
+done:
+    FUNC_LEAVE_API(ret_value)
+} /* end H5RC_close() */
+
diff --git a/src/H5RCprivate.h b/src/H5RCprivate.h
new file mode 100644
index 0000000..e4ffa75
--- /dev/null
+++ b/src/H5RCprivate.h
@@ -0,0 +1,61 @@
+/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
+ * 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.     *
+ * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
+
+/*
+ * This file contains private information about the H5RC module
+ */
+#ifndef _H5RCprivate_H
+#define _H5RCprivate_H
+
+/* Include package's public header */
+#include "H5RCpublic.h"
+
+/* Private headers needed by this file */
+#include "H5private.h"		/* Generic Functions			*/
+#include "H5Pprivate.h"		/* Property lists			*/
+#include "H5VLprivate.h"	/* VOL plugins				*/
+
+/**************************/
+/* Library Private Macros */
+/**************************/
+
+/****************************/
+/* Library Private Typedefs */
+/****************************/
+/* the client Read Context struct */
+typedef struct H5RC_t {
+    void *file;
+    uint64_t c_version;
+} H5RC_t;
+
+/*****************************/
+/* Library Private Variables */
+/*****************************/
+
+/******************************/
+/* Library Private Prototypes */
+/******************************/
+#if 0
+herr_t H5RC_init(void);
+
+/* API wrappers */
+H5_DLL H5RC_t *H5RC_create(void *file, uint64_t c_version);
+H5_DLL herr_t H5RC_close(H5RC_t *rc);
+
+H5_DLL herr_t H5VL_iod_rc_acquire(H5VL_iod_file_t *file, H5RC_t *rc, void **req);
+H5_DLL herr_t H5VL_iod_rc_release(H5RC_t *rc, void **req);
+#endif
+ 
+#endif /* _H5RCprivate_H */
diff --git a/src/H5RCpublic.h b/src/H5RCpublic.h
new file mode 100644
index 0000000..e6083e3
--- /dev/null
+++ b/src/H5RCpublic.h
@@ -0,0 +1,75 @@
+/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
+ * Copyright by The HDF Group.                                               *
+ * 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.     *
+ * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
+
+/*
+ * This file contains function prototypes for each exported function in the
+ * H5RC module.
+ */
+#ifndef _H5RCpublic_H
+#define _H5RCpublic_H
+
+/* System headers needed by this file */
+
+/* Public headers needed by this file */
+#include "H5public.h"
+#include "H5Ipublic.h"
+
+/*****************/
+/* Public Macros */
+/*****************/
+#define H5RC_ACQUIRE_CV_REQUEST_NAME "acquire_request_name"
+
+/*******************/
+/* Public Typedefs */
+/*******************/
+typedef enum H5RC_request_t{
+    H5RC_EXACT, /* default */
+    H5RC_NEXT,
+    H5RC_LAST
+} H5RC_request_t;
+
+/********************/
+/* Public Variables */
+/********************/
+
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/*********************/
+/* Public Prototypes */
+/*********************/
+
+/* API wrappers */
+H5_DLL hid_t H5RCcreate(hid_t file_id, uint64_t container_version);
+H5_DLL hid_t H5RCacquire(hid_t file_id, /*IN/OUT*/ uint64_t *container_version, 
+                         hid_t rcapl_id, hid_t eq_id);
+H5_DLL herr_t H5RCrelease(hid_t rc_id , hid_t eq_id);
+H5_DLL herr_t H5RCclose(hid_t rc_id);
+
+H5_DLL herr_t H5Pset_rcapl_version_request(hid_t rcapl_id, H5RC_request_t acquire_req);
+
+#if 0
+/* Those are not set for now */
+H5_DLL herr_t H5Fskip_trans(hid_t file_id, uint64_t start_trans_num, uint64_t count, hid_t eq_id);
+H5_DLL herr_t H5Fpersist(hid_t file_id, uint64_t rc_num, hid_t eq_id);
+H5_DLL herr_t H5Fsnapshot(hid_t file_id, uint64_t container_version, 
+                          const char* snapshot_name, hid_t eq_id);
+#endif
+
+#ifdef __cplusplus
+}
+#endif
+#endif /* _H5RCpublic_H */
diff --git a/src/H5TR.c b/src/H5TR.c
new file mode 100644
index 0000000..d46823b
--- /dev/null
+++ b/src/H5TR.c
@@ -0,0 +1,606 @@
+/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
+ * Copyright by The HDF Group.                                               *
+ * 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.     *
+ * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
+
+/*
+ * Programmer:  Mohamad Chaarawi <chaarawi@hdfgroup.org>
+ *              August, 2013
+ *
+ * Purpose:	Transaction APIs to support Exascale FastForward
+ *              functionality.
+ *              
+ */
+
+
+/****************/
+/* Module Setup */
+/****************/
+
+/* Interface initialization */
+#define H5_INTERFACE_INIT_FUNC	H5TR_init_interface
+
+/***********/
+/* Headers */
+/***********/
+#include "H5private.h"		/* Generic Functions			*/
+#include "H5Eprivate.h"		/* Error handling		  	*/
+#include "H5TRprivate.h"        /* Transactions                         */
+#include "H5Iprivate.h"		/* IDs			  		*/
+#include "H5MMprivate.h"	/* Memory management			*/
+#include "H5VLprivate.h"	/* VOL plugins				*/
+
+
+/****************/
+/* Local Macros */
+/****************/
+
+
+/******************/
+/* Local Typedefs */
+/******************/
+
+
+/********************/
+/* Local Prototypes */
+/********************/
+
+
+/*********************/
+/* Package Variables */
+/*********************/
+
+
+/*****************************/
+/* Library Private Variables */
+/*****************************/
+
+
+/*******************/
+/* Local Variables */
+/*******************/
+
+/* Declare a free list to manage the H5TR_t struct */
+H5FL_DEFINE(H5TR_t);
+
+/* Dataspace ID class */
+static const H5I_class_t H5I_TR_CLS[1] = {{
+    H5I_TR,        		/* ID class value */
+    0,				/* Class flags */
+    64,				/* Minimum hash size for class */
+    2,				/* # of reserved IDs for class */
+    NULL,                   	/* Callback routine for closing objects of this class */
+    (H5I_free2_t)H5TR_close     /* Callback routine for closing auxilary objects of this class */
+}};
+
+
+
+/*-------------------------------------------------------------------------
+ * Function:	H5TR_init
+ *
+ * Purpose:	Initialize the interface from some other package.
+ *
+ * Return:	Success:	non-negative
+ *		Failure:	negative
+ *
+ * Programmer:	Mohamad Chaarawi
+ *              August 2013
+ *
+ *-------------------------------------------------------------------------
+ */
+herr_t
+H5TR_init(void)
+{
+    herr_t ret_value = SUCCEED;   /* Return value */
+
+    FUNC_ENTER_NOAPI(FAIL)
+    /* FUNC_ENTER() does all the work */
+
+done:
+    FUNC_LEAVE_NOAPI(ret_value)
+} /* end H5TR_init() */
+
+
+/*--------------------------------------------------------------------------
+NAME
+   H5TR_init_interface -- Initialize interface-specific information
+USAGE
+    herr_t H5TR_init_interface()
+
+RETURNS
+    Non-negative on success/Negative on failure
+DESCRIPTION
+    Initializes any interface-specific data or routines.
+
+--------------------------------------------------------------------------*/
+static herr_t
+H5TR_init_interface(void)
+{
+    herr_t ret_value = SUCCEED;   /* Return value */
+
+    FUNC_ENTER_NOAPI_NOINIT
+
+    /* Initialize the atom group for the TR IDs */
+    if(H5I_register_type(H5I_TR_CLS) < 0)
+	HGOTO_ERROR(H5E_DATASPACE, H5E_CANTINIT, FAIL, "unable to initialize interface")
+
+done:
+    FUNC_LEAVE_NOAPI(ret_value)
+} /* end H5TR_init_interface() */
+
+
+/*--------------------------------------------------------------------------
+ NAME
+    H5TR_term_interface
+ PURPOSE
+    Terminate various H5TR objects
+ USAGE
+    void H5TR_term_interface()
+ RETURNS
+    Non-negative on success/Negative on failure
+ DESCRIPTION
+    Release the atom group and any other resources allocated.
+ GLOBAL VARIABLES
+ COMMENTS, BUGS, ASSUMPTIONS
+     Can't report errors...
+ EXAMPLES
+ REVISION LOG
+--------------------------------------------------------------------------*/
+int
+H5TR_term_interface(void)
+{
+    int	n = 0;
+
+    FUNC_ENTER_NOAPI_NOINIT_NOERR
+
+    if(H5_interface_initialize_g) {
+	if((n = H5I_nmembers(H5I_TR))) {
+	    H5I_clear_type(H5I_TR, FALSE, FALSE);
+	} /* end if */
+        else {
+	    /* Free data types */
+	    H5I_dec_type_ref(H5I_TR);
+
+	    /* Shut down interface */
+	    H5_interface_initialize_g = 0;
+	    n = 1; /*H5I*/
+	} /* end else */
+    } /* end if */
+
+    FUNC_LEAVE_NOAPI(n)
+} /* end H5TR_term_interface() */
+
+
+/*-------------------------------------------------------------------------
+ * Function:	H5Pset_trspl_num_peers
+ *
+ * Purpose: Set the number of peers that will call H5TRstart for a
+ * transaction. If num_peers=0, the application has appointed a
+ * transaction leader to signal the start and finish of the
+ * transaction, and to coordinate with processes participating in the
+ * transaction regarding when they can begin updating and when their
+ * updates are done.  When this is the case, only one process (the
+ * transaction leader) can call H5TRstart and H5TRfinish for the given
+ * transaction_num.  This mode of operation is typical for
+ * tightly-coupled applications.  If num_peers>0, the I/O stack (in
+ * particular, IOD) will track the status of the transaction.  All
+ * num_peers processes participating in the transaction must call
+ * H5TRstart with the same values for num_peers and transaction_num.
+ * As each participating process is done with their updates in the
+ * transaction, they individually call H5TRfinish for this
+ * transaction_num. When all num_peers processes have called
+ * H5TRfinish for this transaction_num, the I/O stack detects that the
+ * transaction is finished and updates appear atomically when all
+ * lower-numbered transactions are finished, aborted, or skipped.
+ * This mode of operation is typical for loosely-coupled applications.
+ *
+ * Return:	Non-negative on success/Negative on failure
+ *
+ * Programmer:  Mohamad Chaarawi
+ *              August 2013
+ *
+ *-------------------------------------------------------------------------
+ */
+herr_t
+H5Pset_trspl_num_peers(hid_t trspl_id, unsigned num_peers)
+{
+    H5P_genplist_t *plist;      /* Property list pointer */
+    herr_t ret_value = SUCCEED; /* return value */
+
+    FUNC_ENTER_API(FAIL)
+    H5TRACE2("e", "iIu", trspl_id, num_peers);
+
+    /* Get the plist structure */
+    if(NULL == (plist = H5P_object_verify(trspl_id, H5P_TR_START)))
+        HGOTO_ERROR(H5E_ATOM, H5E_BADATOM, FAIL, "can't find object for ID");
+
+    /* Set property */
+    if(H5P_set(plist, H5TR_START_NUM_PEERS_NAME, &num_peers) < 0)
+        HGOTO_ERROR(H5E_PLIST, H5E_CANTSET,FAIL, "can't set num peers in transaction");
+
+done:
+    FUNC_LEAVE_API(ret_value)
+} /* end H5Pset_trspl_num_peers() */
+
+
+/*-------------------------------------------------------------------------
+ * Function:	H5TRcreate
+ *
+ * Purpose:	Wraps an hid_t around a transaction number, a file ID, 
+ *              and a read context ID on that file that operations using 
+ *              the created transaction will read from.
+ *
+ * Return:	Success:	The ID for a new transaction.
+ *		Failure:	FAIL
+ *
+ * Programmer:	Mohamad Chaarawi
+ *		August 2013
+ *
+ *-------------------------------------------------------------------------
+ */
+hid_t
+H5TRcreate(hid_t file_id, hid_t rc_id, uint64_t trans_num)
+{
+    void *file = NULL;
+    H5VL_t *vol_plugin = NULL;
+    H5TR_t *tr = NULL;
+    hid_t ret_value;
+
+    FUNC_ENTER_API(FAIL)
+
+    /* get the file object */
+    if(NULL == (file = (void *)H5I_object_verify(file_id, H5I_FILE)))
+        HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "not a file ID")
+    /* get the plugin pointer */
+    if (NULL == (vol_plugin = (H5VL_t *)H5I_get_aux(file_id)))
+        HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "ID does not contain VOL information")
+    /* get the Read Context object */
+    if(NULL == (rc = (H5RC_t *)H5I_object_verify(rc_id, H5I_RC)))
+        HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "not a read context ID")
+
+    /* create a new transaction object */
+    if(NULL == (tr = H5TR_create(file, rc, trans_num)))
+	HGOTO_ERROR(H5E_SYM, H5E_CANTCREATE, FAIL, "unable to create transaction object")
+
+    /* Get an atom for the event queue with the VOL information as the auxilary struct*/
+    if((ret_value = H5I_register2(H5I_TR, tr, vol_plugin, TRUE)) < 0)
+	HGOTO_ERROR(H5E_ATOM, H5E_CANTREGISTER, FAIL, "unable to atomize transaction handle")
+
+done:
+    FUNC_LEAVE_API(ret_value)
+} /* end H5TRcreate() */
+
+
+/*-------------------------------------------------------------------------
+ * Function:	H5TR_create
+ *
+ * Purpose:	Private version for H5TRcreate.
+ *
+ * Return:	Success:	Transaction struct.
+ *		Failure:	NULL
+ *
+ * Programmer:	Mohamad Chaarawi
+ *		August 2013
+ *
+ *-------------------------------------------------------------------------
+ */
+H5TR_t *
+H5TR_create(void *file, H5RC_t *rc, uint64_t trans_num)
+{
+    void *file = NULL;
+    H5VL_t *vol_plugin = NULL;
+    H5TR_t *tr = NULL;
+    H5TR_t *ret_value = NULL;          /* Return value */
+
+    FUNC_ENTER_NOAPI_NOINIT
+
+    /* allocate transaction struct */
+    if(NULL == (tr = H5FL_CALLOC(H5TR_t)))
+	HGOTO_ERROR(H5E_SYM, H5E_NOSPACE, NULL, "can't allocate top transaction structure")
+
+    tr->file = file;
+    tr->c_version = rc->c_version;
+    tr->trans_num = trans_num;
+
+    /* set return value */
+    ret_value = tr;
+
+done:
+    if(!ret_value && tr)
+	tr = H5FL_FREE(H5TR_t, tr);
+
+    FUNC_LEAVE_API(ret_value)
+} /* end H5TR_create() */
+
+
+/*-------------------------------------------------------------------------
+ * Function:	H5TRstart
+ *
+ * Purpose:     Starts a transaction that has been created with H5TRcreate.
+ *
+ * Return:	Success:	Non-Negative.
+ *		Failure:	Negative
+ *
+ * Programmer:	Mohamad Chaarawi
+ *		August 2013
+ *
+ *-------------------------------------------------------------------------
+ */
+herr_t
+H5TRstart(hid_t tr_id, hid_t trspl_id, hid_t eq_id)
+{
+    H5TR_t *tr = NULL;
+    H5_priv_request_t  *request = NULL; /* private request struct inserted in event queue */
+    void **req = NULL; /* pointer to plugin generate requests (Stays NULL if plugin does not support async */
+    herr_t ret_value;
+
+    FUNC_ENTER_API(FAIL)
+    H5TRACE3("e", "iii", tr_id, trspl_id, eq_id);
+
+    /* get the TR object */
+    if(NULL == (tr = (H5TR_t *)H5I_object_verify(tr_id, H5I_TR)))
+        HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "not a Transaction ID")
+
+    /* Get correct property list */
+    if(H5P_DEFAULT == trspl_id)
+        trspl_id = H5P_TR_START_DEFAULT;
+    else
+        if(TRUE != H5P_isa_class(trspl_id, H5P_TR_START))
+            HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not transaction start property list")
+
+    if(eq_id != H5_EVENT_QUEUE_NULL) {
+        /* create the private request */
+        if(NULL == (request = (H5_priv_request_t *)H5MM_calloc(sizeof(H5_priv_request_t))))
+            HGOTO_ERROR(H5E_RESOURCE, H5E_NOSPACE, FAIL, "memory allocation failed");
+        request->req = NULL;
+        req = &request->req;
+        request->next = NULL;
+        request->vol_plugin = vol_plugin;
+    }
+
+    if(H5VL_iod_tr_start(tr, trspl_id, req) < 0)
+        HGOTO_ERROR(H5E_FILE, H5E_CANTINIT, FAIL, "failed to request a transaction start");
+
+    if(request && *req) {
+        if(H5EQinsert(eq_id, request) < 0)
+            HGOTO_ERROR(H5E_VOL, H5E_CANTINIT, FAIL, "failed to insert request in event queue");
+    }
+
+done:
+    FUNC_LEAVE_API(ret_value)
+} /* end H5TRstart()*/
+
+
+/*-------------------------------------------------------------------------
+ * Function:	H5TRfinish
+ *
+ * Purpose:     Finishes/Commits a transaction.
+ *
+ * Return:	Success:	Non-Negative.
+ *		Failure:	Negative
+ *
+ * Programmer:	Mohamad Chaarawi
+ *		August 2013
+ *
+ *-------------------------------------------------------------------------
+ */
+herr_t
+H5TRfinish(hid_t trans_id, hid_t trfpl_id, hid_t eq_id)
+{
+    H5TR_t *tr = NULL;
+    H5_priv_request_t  *request = NULL; /* private request struct inserted in event queue */
+    void **req = NULL; /* pointer to plugin generate requests (Stays NULL if plugin does not support async */
+    herr_t ret_value;
+
+    FUNC_ENTER_API(FAIL)
+    H5TRACE3("e", "iii", trans_id, trfpl_id, eq_id);
+
+    /* get the TR object */
+    if(NULL == (tr = (H5TR_t *)H5I_object_verify(tr_id, H5I_TR)))
+        HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "not a Transaction ID")
+
+    /* Get correct property list */
+    if(H5P_DEFAULT == trfpl_id)
+        trfpl_id = H5P_TR_FINISH_DEFAULT;
+    else
+        if(TRUE != H5P_isa_class(trfpl_id, H5P_TR_FINISH))
+            HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not transaction finish property list")
+
+    if(eq_id != H5_EVENT_QUEUE_NULL) {
+        /* create the private request */
+        if(NULL == (request = (H5_priv_request_t *)H5MM_calloc(sizeof(H5_priv_request_t))))
+            HGOTO_ERROR(H5E_RESOURCE, H5E_NOSPACE, FAIL, "memory allocation failed");
+        request->req = NULL;
+        req = &request->req;
+        request->next = NULL;
+        request->vol_plugin = vol_plugin;
+    }
+
+    if(H5VL_iod_tr_finish(tr, trfpl_id, req) < 0)
+        HGOTO_ERROR(H5E_FILE, H5E_CANTINIT, FAIL, "failed to request a transaction finish");
+
+    if(request && *req) {
+        if(H5EQinsert(eq_id, request) < 0)
+            HGOTO_ERROR(H5E_VOL, H5E_CANTINIT, FAIL, "failed to insert request in event queue");
+    }
+
+done:
+    FUNC_LEAVE_API(ret_value)
+} /* end H5TRfinish()*/
+
+
+/*-------------------------------------------------------------------------
+ * Function:	H5TRfinish
+ *
+ * Purpose:     Set a depedency between two transactions. Transaction
+ *              associated with trans_id is declaring a dependency on transaction
+ *              numbered trans_num.  trans_num must be < the transaction number
+ *              trans_id is associated with.
+ *
+ * Return:	Success:	Non-Negative.
+ *		Failure:	Negative
+ *
+ * Programmer:	Mohamad Chaarawi
+ *		August 2013
+ *
+ *-------------------------------------------------------------------------
+ */
+herr_t
+H5TRset_dependency(hid_t trans_id, uint64_t trans_num, hid_t eq_id)
+{
+    H5TR_t *tr = NULL;
+    H5_priv_request_t  *request = NULL; /* private request struct inserted in event queue */
+    void **req = NULL; /* pointer to plugin generate requests (Stays NULL if plugin does not support async */
+    herr_t ret_value;
+
+    FUNC_ENTER_API(FAIL)
+
+    /* get the TR object */
+    if(NULL == (tr = (H5TR_t *)H5I_object_verify(tr_id, H5I_TR)))
+        HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "not a Transaction ID")
+
+    if(tr->trans_num <= trans_num)
+        HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "The dependent transaction must be higher than the one it depends on")
+
+    if(eq_id != H5_EVENT_QUEUE_NULL) {
+        /* create the private request */
+        if(NULL == (request = (H5_priv_request_t *)H5MM_calloc(sizeof(H5_priv_request_t))))
+            HGOTO_ERROR(H5E_RESOURCE, H5E_NOSPACE, FAIL, "memory allocation failed");
+        request->req = NULL;
+        req = &request->req;
+        request->next = NULL;
+        request->vol_plugin = vol_plugin;
+    }
+
+    if(H5VL_iod_tr_set_dependency(tr, trans_num, req) < 0)
+        HGOTO_ERROR(H5E_FILE, H5E_CANTINIT, FAIL, "failed to request a transaction set_dependency");
+
+    if(request && *req) {
+        if(H5EQinsert(eq_id, request) < 0)
+            HGOTO_ERROR(H5E_VOL, H5E_CANTINIT, FAIL, "failed to insert request in event queue");
+    }
+
+done:
+    FUNC_LEAVE_API(ret_value)
+} /* end H5TRset_dependency()*/
+
+
+/*-------------------------------------------------------------------------
+ * Function:	H5TRabort
+ *
+ * Purpose:     Aborts a transaction
+ *
+ * Return:	Success:	Non-Negative.
+ *		Failure:	Negative
+ *
+ * Programmer:	Mohamad Chaarawi
+ *		August 2013
+ *
+ *-------------------------------------------------------------------------
+ */
+herr_t
+H5TRabort(hid_t trans_id, hid_t eq_id)
+{
+    H5TR_t *tr = NULL;
+    H5_priv_request_t  *request = NULL; /* private request struct inserted in event queue */
+    void **req = NULL; /* pointer to plugin generate requests (Stays NULL if plugin does not support async */
+    herr_t ret_value;
+
+    FUNC_ENTER_API(FAIL)
+    H5TRACE2("e", "ii", trans_id, eq_id);
+
+    /* get the TR object */
+    if(NULL == (tr = (H5TR_t *)H5I_object_verify(tr_id, H5I_TR)))
+        HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "not a Transaction ID")
+
+    if(eq_id != H5_EVENT_QUEUE_NULL) {
+        /* create the private request */
+        if(NULL == (request = (H5_priv_request_t *)H5MM_calloc(sizeof(H5_priv_request_t))))
+            HGOTO_ERROR(H5E_RESOURCE, H5E_NOSPACE, FAIL, "memory allocation failed");
+        request->req = NULL;
+        req = &request->req;
+        request->next = NULL;
+        request->vol_plugin = vol_plugin;
+    }
+
+    if(H5VL_iod_tr_abort(tr, req) < 0)
+        HGOTO_ERROR(H5E_FILE, H5E_CANTINIT, FAIL, "failed to request a transaction abort");
+
+    if(request && *req) {
+        if(H5EQinsert(eq_id, request) < 0)
+            HGOTO_ERROR(H5E_VOL, H5E_CANTINIT, FAIL, "failed to insert request in event queue");
+    }
+
+done:
+    FUNC_LEAVE_API(ret_value)
+} /* end H5TRabort()*/
+
+
+/*-------------------------------------------------------------------------
+ * Function:	H5TRclose
+ *
+ * Purpose:	Closes the specified transaction ID.  The ID will no longer be
+ *		valid for accessing the transaction.
+ *
+ * Return:	Non-negative on success/Negative on failure
+ *
+ * Programmer:	Mohamad Chaarawi
+ *		August 2013
+ *
+ *-------------------------------------------------------------------------
+ */
+herr_t
+H5TRclose(hid_t tr_id)
+{
+    herr_t ret_value = SUCCEED;         /* Return value */
+
+    FUNC_ENTER_API(FAIL)
+    H5TRACE1("e", "i", tr_id);
+
+    /* Check args */
+    if(NULL == H5I_object_verify(tr_id,H5I_TR))
+	HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not an transaction ID")
+
+    if(H5I_dec_app_ref(tr_id) < 0)
+    	HGOTO_ERROR(H5E_SYM, H5E_CANTRELEASE, FAIL, "unable to close transaction")
+
+done:
+    FUNC_LEAVE_API(ret_value)
+} /* end H5TRclose() */
+
+
+/*-------------------------------------------------------------------------
+ * Function:	H5TR_close
+ *
+ * Purpose:	Closes the specified transaction ID.  The ID will no longer be
+ *		valid for accessing the transaction.
+ *
+ * Return:	Non-negative on success/Negative on failure
+ *
+ * Programmer:	Mohamad Chaarawi
+ *		August 2013
+ *
+ *-------------------------------------------------------------------------
+ */
+herr_t
+H5TR_close(H5TR_t *tr)
+{
+    herr_t ret_value = SUCCEED;         /* Return value */
+
+    FUNC_ENTER_API(FAIL)
+
+    tr = H5FL_FREE(H5TR_t, tr);
+
+done:
+    FUNC_LEAVE_API(ret_value)
+} /* end H5TR_close() */
+
diff --git a/src/H5TRprivate.h b/src/H5TRprivate.h
new file mode 100644
index 0000000..54bbe20
--- /dev/null
+++ b/src/H5TRprivate.h
@@ -0,0 +1,63 @@
+/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
+ * Copyright by The HDF Group.                                               *
+ * 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.     *
+ * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
+
+/*
+ * This file contains private information about the H5TR module
+ */
+#ifndef _H5TRprivate_H
+#define _H5TRprivate_H
+
+/* Include package's public header */
+#include "H5TRpublic.h"
+
+/* Private headers needed by this file */
+#include "H5private.h"		/* Generic Functions			*/
+#include "H5Pprivate.h"		/* Property lists			*/
+#include "H5VLprivate.h"	/* VOL plugins				*/
+
+/**************************/
+/* Library Private Macros */
+/**************************/
+
+/****************************/
+/* Library Private Typedefs */
+/****************************/
+/* the transaction struct */
+typedef struct H5TR_t {
+    void *file;
+    uint64_t c_version;
+    uint64_t trans_num;
+} H5TR_t;
+
+/*****************************/
+/* Library Private Variables */
+/*****************************/
+
+/******************************/
+/* Library Private Prototypes */
+/******************************/
+#if 0
+herr_t H5TR_init(void);
+
+/* API wrappers */
+H5_DLL H5TR_t *H5TR_create(void *file, H5RC_t *rc, uint64_t trans_num);
+H5_DLL herr_t H5TR_close(H5TR_t *tr);
+
+
+H5_DLL herr_t H5VL_iod_tr_start(H5TR_t *tr, hid_t trspl_id, void **req);
+H5_DLL herr_t H5VL_iod_tr_finish(H5TR_t *tr, hid_t trfpl_id, void **req);
+H5_DLL herr_t H5VL_iod_tr_set_dependency(H5TR_t *tr, uint64_t trans_num, void **req);
+H5_DLL herr_t H5VL_iod_tr_abort(H5TR_t *tr, void **req);
+#endif
+#endif /* _H5TRprivate_H */
diff --git a/src/H5TRpublic.h b/src/H5TRpublic.h
new file mode 100644
index 0000000..07d6291
--- /dev/null
+++ b/src/H5TRpublic.h
@@ -0,0 +1,63 @@
+/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
+ * Copyright by The HDF Group.                                               *
+ * 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.     *
+ * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
+
+/*
+ * This file contains function prototypes for each exported function in the
+ * H5TR module.
+ */
+#ifndef _H5TRpublic_H
+#define _H5TRpublic_H
+
+/* System headers needed by this file */
+
+/* Public headers needed by this file */
+#include "H5public.h"
+#include "H5Ipublic.h"
+
+/*****************/
+/* Public Macros */
+/*****************/
+#define H5TR_START_NUM_PEERS_NAME "number_of_peers_name"
+
+/*******************/
+/* Public Typedefs */
+/*******************/
+
+/********************/
+/* Public Variables */
+/********************/
+
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/*********************/
+/* Public Prototypes */
+/*********************/
+
+/* API wrappers */
+H5_DLL hid_t H5TRcreate(hid_t file_id, hid_t rc_id, uint64_t trans_num);
+H5_DLL herr_t H5TRstart(hid_t trans_id, hid_t trspl_id, hid_t eq_id);
+H5_DLL herr_t H5TRfinish(hid_t trans_id, hid_t trfpl_id, hid_t eq_id);
+H5_DLL herr_t H5TRset_dependency(hid_t trans_id, uint64_t trans_num, hid_t eq_id);
+H5_DLL herr_t H5TRabort(hid_t trans_id, hid_t eq_id);
+H5_DLL herr_t H5TRclose(hid_t trans_id);
+
+H5_DLL herr_t H5Pset_trspl_num_peers(hid_t trspl_id, unsigned num_peers);
+
+#ifdef __cplusplus
+}
+#endif
+#endif /* _H5TRpublic_H */
diff --git a/src/Makefile.am b/src/Makefile.am
index 2f8cb1a..dedf109 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -93,7 +93,7 @@ libhdf5_la_SOURCES= H5.c H5checksum.c H5dbg.c H5system.c H5timer.c H5trace.c \
         H5P.c H5Pacpl.c H5Pdapl.c H5Pdcpl.c \
         H5Pdeprec.c H5Pdxpl.c H5Pencdec.c \
         H5Pfapl.c H5Pfcpl.c H5Pfmpl.c \
-        H5Pgcpl.c H5Pint.c \
+        H5Pgcpl.c H5Pint.c H5Prcapl.c H5Ptrspl.c \
         H5Plapl.c H5Plcpl.c H5Pocpl.c H5Pocpypl.c H5Pstrcpl.c H5Ptest.c \
         H5PL.c \
         H5R.c H5Rdeprec.c \
diff --git a/src/Makefile.in b/src/Makefile.in
index 48a3c36..11c754c 100644
--- a/src/Makefile.in
+++ b/src/Makefile.in
@@ -164,18 +164,18 @@ am_libhdf5_la_OBJECTS = H5.lo H5checksum.lo H5dbg.lo H5system.lo \
 	H5Oshared.lo H5Ostab.lo H5Oshmesg.lo H5Otest.lo H5Ounknown.lo \
 	H5P.lo H5Pacpl.lo H5Pdapl.lo H5Pdcpl.lo H5Pdeprec.lo \
 	H5Pdxpl.lo H5Pencdec.lo H5Pfapl.lo H5Pfcpl.lo H5Pfmpl.lo \
-	H5Pgcpl.lo H5Pint.lo H5Plapl.lo H5Plcpl.lo H5Pocpl.lo \
-	H5Pocpypl.lo H5Pstrcpl.lo H5Ptest.lo H5PL.lo H5R.lo \
-	H5Rdeprec.lo H5UC.lo H5RS.lo H5S.lo H5Sall.lo H5Sdbg.lo \
-	H5Shyper.lo H5Smpio.lo H5Snone.lo H5Spoint.lo H5Sselect.lo \
-	H5Stest.lo H5SL.lo H5SM.lo H5SMbtree2.lo H5SMcache.lo \
-	H5SMmessage.lo H5SMtest.lo H5ST.lo H5T.lo H5Tarray.lo \
-	H5Tbit.lo H5Tcommit.lo H5Tcompound.lo H5Tconv.lo H5Tcset.lo \
-	H5Tdbg.lo H5Tdeprec.lo H5Tenum.lo H5Tfields.lo H5Tfixed.lo \
-	H5Tfloat.lo H5Tinit.lo H5Tnative.lo H5Toffset.lo H5Toh.lo \
-	H5Topaque.lo H5Torder.lo H5Tpad.lo H5Tprecis.lo H5Tstrpad.lo \
-	H5Tvisit.lo H5Tvlen.lo H5TS.lo H5V.lo H5WB.lo H5Z.lo \
-	H5Zdeflate.lo H5Zfletcher32.lo H5Znbit.lo H5Zshuffle.lo \
+	H5Pgcpl.lo H5Pint.lo H5Prcapl.lo H5Ptrspl.lo H5Plapl.lo \
+	H5Plcpl.lo H5Pocpl.lo H5Pocpypl.lo H5Pstrcpl.lo H5Ptest.lo \
+	H5PL.lo H5R.lo H5Rdeprec.lo H5UC.lo H5RS.lo H5S.lo H5Sall.lo \
+	H5Sdbg.lo H5Shyper.lo H5Smpio.lo H5Snone.lo H5Spoint.lo \
+	H5Sselect.lo H5Stest.lo H5SL.lo H5SM.lo H5SMbtree2.lo \
+	H5SMcache.lo H5SMmessage.lo H5SMtest.lo H5ST.lo H5T.lo \
+	H5Tarray.lo H5Tbit.lo H5Tcommit.lo H5Tcompound.lo H5Tconv.lo \
+	H5Tcset.lo H5Tdbg.lo H5Tdeprec.lo H5Tenum.lo H5Tfields.lo \
+	H5Tfixed.lo H5Tfloat.lo H5Tinit.lo H5Tnative.lo H5Toffset.lo \
+	H5Toh.lo H5Topaque.lo H5Torder.lo H5Tpad.lo H5Tprecis.lo \
+	H5Tstrpad.lo H5Tvisit.lo H5Tvlen.lo H5TS.lo H5V.lo H5WB.lo \
+	H5Z.lo H5Zdeflate.lo H5Zfletcher32.lo H5Znbit.lo H5Zshuffle.lo \
 	H5Zszip.lo H5Zscaleoffset.lo H5Ztrans.lo
 libhdf5_la_OBJECTS = $(am_libhdf5_la_OBJECTS)
 AM_V_lt = $(am__v_lt_@AM_V@)
@@ -603,7 +603,7 @@ libhdf5_la_SOURCES = H5.c H5checksum.c H5dbg.c H5system.c H5timer.c H5trace.c \
         H5P.c H5Pacpl.c H5Pdapl.c H5Pdcpl.c \
         H5Pdeprec.c H5Pdxpl.c H5Pencdec.c \
         H5Pfapl.c H5Pfcpl.c H5Pfmpl.c \
-        H5Pgcpl.c H5Pint.c \
+        H5Pgcpl.c H5Pint.c H5Prcapl.c H5Ptrspl.c \
         H5Plapl.c H5Plcpl.c H5Pocpl.c H5Pocpypl.c H5Pstrcpl.c H5Ptest.c \
         H5PL.c \
         H5R.c H5Rdeprec.c \
@@ -977,8 +977,10 @@ distclean-compile:
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/H5Plcpl.Plo@am__quote@
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/H5Pocpl.Plo@am__quote@
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/H5Pocpypl.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/H5Prcapl.Plo@am__quote@
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/H5Pstrcpl.Plo@am__quote@
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/H5Ptest.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/H5Ptrspl.Plo@am__quote@
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/H5R.Plo@am__quote@
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/H5RS.Plo@am__quote@
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/H5Rdeprec.Plo@am__quote@