Add API context interface and use it throughout the library.

1 files changed, 71 insertions, 35 deletions

diff --git a/src/H5Adeprec.c b/src/H5Adeprec.c
index 9221254..1e031f7 100644
--- a/src/H5Adeprec.c
+++ b/src/H5Adeprec.c
@@ -38,6 +38,7 @@
 /***********/
 #include "H5private.h"		/* Generic Functions			*/
 #include "H5Apkg.h"		/* Attributes				*/
+#include "H5CXprivate.h"        /* API Contexts                         */
 #include "H5Dprivate.h"		/* Datasets				*/
 #include "H5Eprivate.h"		/* Error handling		  	*/
 #include "H5Iprivate.h"		/* IDs			  		*/
@@ -87,12 +88,12 @@
  PURPOSE
     Creates an attribute on an object
  USAGE
-    hid_t H5Acreate1(loc_id, name, type_id, space_id, plist_id)
+    hid_t H5Acreate1(loc_id, name, type_id, space_id, acpl_id)
         hid_t loc_id;       IN: Object (dataset or group) to be attached to
         const char *name;   IN: Name of attribute to create
         hid_t type_id;      IN: ID of datatype for attribute
         hid_t space_id;     IN: ID of dataspace for attribute
-        hid_t plist_id;     IN: ID of creation property list (currently not used)
+        hid_t acpl_id;      IN: ID of creation property list (currently not used)
  RETURNS
     Non-negative on success/Negative on failure
 
@@ -110,16 +111,17 @@
 --------------------------------------------------------------------------*/
 hid_t
 H5Acreate1(hid_t loc_id, const char *name, hid_t type_id, hid_t space_id,
-	  hid_t plist_id)
+    hid_t acpl_id)
 {
-    H5A_t	        *attr = NULL;           /* Attribute created */
-    H5G_loc_t           loc;                    /* Object location */
-    H5T_t		*type;                  /* Datatype to use for attribute */
-    H5S_t		*space;                 /* Dataspace to use for attribute */
-    hid_t		ret_value;              /* Return value */
+    H5A_t	*attr = NULL;           /* Attribute created */
+    H5G_loc_t   loc;                    /* Object location */
+    H5T_t	*type;                  /* Datatype to use for attribute */
+    H5S_t	*space;                 /* Dataspace to use for attribute */
+hbool_t     api_ctx_pushed = FALSE;             /* Whether API context pushed */
+    hid_t	ret_value;              /* Return value */
 
     FUNC_ENTER_API(FAIL)
-    H5TRACE5("i", "i*siii", loc_id, name, type_id, space_id, plist_id);
+    H5TRACE5("i", "i*siii", loc_id, name, type_id, space_id, acpl_id);
 
     /* check arguments */
     if(H5I_ATTR == H5I_get_type(loc_id))
@@ -135,8 +137,16 @@ H5Acreate1(hid_t loc_id, const char *name, hid_t type_id, hid_t space_id,
     if(NULL == (space = (H5S_t *)H5I_object_verify(space_id, H5I_DATASPACE)))
 	HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a data space")
 
+/* Set API context */
+if(H5CX_push() < 0)
+    HGOTO_ERROR(H5E_ATTR, H5E_CANTSET, H5I_INVALID_HID, "can't set API context")
+api_ctx_pushed = TRUE;
+/* Set up collective metadata if appropriate */
+if(H5CX_set_loc(loc_id, TRUE) < 0)
+    HGOTO_ERROR(H5E_ATTR, H5E_CANTSET, H5I_INVALID_HID, "can't set collective metadata read")
+
     /* Go do the real work for attaching the attribute to the dataset */
-    if(NULL==(attr = H5A_create(&loc, name, type, space, plist_id, H5AC_ind_read_dxpl_id)))
+    if(NULL == (attr = H5A__create(&loc, name, type, space, acpl_id)))
 	HGOTO_ERROR(H5E_ATTR, H5E_CANTINIT, FAIL, "unable to create attribute")
 
     /* Register the new attribute and get an ID for it */
@@ -144,6 +154,12 @@ H5Acreate1(hid_t loc_id, const char *name, hid_t type_id, hid_t space_id,
         HGOTO_ERROR(H5E_ATOM, H5E_CANTREGISTER, FAIL, "unable to register attribute for ID")
 
 done:
+    /* Cleanup on failure */
+    if(ret_value < 0 && attr && H5A__close(attr) < 0)
+        HDONE_ERROR(H5E_ATTR, H5E_CANTFREE, FAIL, "can't close attribute")
+if(api_ctx_pushed && H5CX_pop() < 0)
+    HDONE_ERROR(H5E_ATTR, H5E_CANTRESET, H5I_INVALID_HID, "can't reset API context")
+
     FUNC_LEAVE_API(ret_value)
 } /* H5Acreate1() */
 
@@ -173,9 +189,10 @@ done:
 hid_t
 H5Aopen_name(hid_t loc_id, const char *name)
 {
-    H5G_loc_t    	loc;            /* Object location */
-    H5A_t               *attr = NULL;   /* Attribute opened */
-    hid_t		ret_value;
+    H5G_loc_t   loc;            /* Object location */
+    H5A_t       *attr = NULL;   /* Attribute opened */
+hbool_t     api_ctx_pushed = FALSE;             /* Whether API context pushed */
+    hid_t	ret_value;
 
     FUNC_ENTER_API(FAIL)
     H5TRACE2("i", "i*s", loc_id, name);
@@ -188,8 +205,13 @@ H5Aopen_name(hid_t loc_id, const char *name)
     if(!name || !*name)
 	HGOTO_ERROR(H5E_ARGS, H5E_BADVALUE, FAIL, "no name")
 
+/* Set API context */
+if(H5CX_push() < 0)
+    HGOTO_ERROR(H5E_ATTR, H5E_CANTSET, H5I_INVALID_HID, "can't set API context")
+api_ctx_pushed = TRUE;
+
     /* Open the attribute on the object header */
-    if(NULL == (attr = H5A_open_by_name(&loc, ".", name, H5P_LINK_ACCESS_DEFAULT, H5AC_ind_read_dxpl_id)))
+    if(NULL == (attr = H5A__open_by_name(&loc, ".", name)))
         HGOTO_ERROR(H5E_ATTR, H5E_CANTOPENOBJ, FAIL, "can't open attribute: '%s'", name)
 
     /* Register the attribute and get an ID for it */
@@ -199,8 +221,10 @@ H5Aopen_name(hid_t loc_id, const char *name)
 done:
     /* Cleanup on failure */
     if(ret_value < 0)
-        if(attr && H5A_close(attr) < 0)
+        if(attr && H5A__close(attr) < 0)
             HDONE_ERROR(H5E_ATTR, H5E_CANTFREE, FAIL, "can't close attribute")
+if(api_ctx_pushed && H5CX_pop() < 0)
+    HDONE_ERROR(H5E_ATTR, H5E_CANTRESET, H5I_INVALID_HID, "can't reset API context")
 
     FUNC_LEAVE_API(ret_value)
 } /* H5Aopen_name() */
@@ -233,6 +257,7 @@ H5Aopen_idx(hid_t loc_id, unsigned idx)
 {
     H5G_loc_t	loc;	        /* Object location */
     H5A_t       *attr = NULL;   /* Attribute opened */
+hbool_t     api_ctx_pushed = FALSE;             /* Whether API context pushed */
     hid_t	ret_value;
 
     FUNC_ENTER_API(FAIL)
@@ -244,9 +269,14 @@ H5Aopen_idx(hid_t loc_id, unsigned idx)
     if(H5G_loc(loc_id, &loc) < 0)
 	HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "not a location")
 
+/* Set API context */
+if(H5CX_push() < 0)
+    HGOTO_ERROR(H5E_ATTR, H5E_CANTSET, H5I_INVALID_HID, "can't set API context")
+api_ctx_pushed = TRUE;
+
     /* Open the attribute in the object header */
-    if(NULL == (attr = H5A_open_by_idx(&loc, ".", H5_INDEX_CRT_ORDER, H5_ITER_INC, (hsize_t)idx, H5P_LINK_ACCESS_DEFAULT, H5AC_ind_read_dxpl_id)))
-        HGOTO_ERROR(H5E_ATTR, H5E_CANTOPENOBJ, FAIL, "unable to open attribute")
+    if(NULL == (attr = H5A__open_by_idx(&loc, ".", H5_INDEX_CRT_ORDER, H5_ITER_INC, (hsize_t)idx)))
+        HGOTO_ERROR(H5E_ATTR, H5E_CANTOPENOBJ, H5I_INVALID_HID, "unable to open attribute")
 
     /* Register the attribute and get an ID for it */
     if((ret_value = H5I_register(H5I_ATTR, attr, TRUE)) < 0)
@@ -255,8 +285,10 @@ H5Aopen_idx(hid_t loc_id, unsigned idx)
 done:
     /* Cleanup on failure */
     if(ret_value < 0)
-        if(attr && H5A_close(attr) < 0)
+        if(attr && H5A__close(attr) < 0)
             HDONE_ERROR(H5E_ATTR, H5E_CANTFREE, FAIL, "can't close attribute")
+if(api_ctx_pushed && H5CX_pop() < 0)
+    HDONE_ERROR(H5E_ATTR, H5E_CANTRESET, H5I_INVALID_HID, "can't reset API context")
 
     FUNC_LEAVE_API(ret_value)
 } /* H5Aopen_idx() */
@@ -283,9 +315,10 @@ done:
 int
 H5Aget_num_attrs(hid_t loc_id)
 {
-    H5O_loc_t    	*loc;	/* Object location for attribute */
-    void           	*obj;
-    int			ret_value;
+    H5O_loc_t   *loc;	/* Object location for attribute */
+    void        *obj;
+hbool_t     api_ctx_pushed = FALSE;             /* Whether API context pushed */
+    int		ret_value;
 
     FUNC_ENTER_API(FAIL)
     H5TRACE1("Is", "i", loc_id);
@@ -330,11 +363,18 @@ H5Aget_num_attrs(hid_t loc_id)
             HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "inappropriate attribute target")
     } /*lint !e788 All appropriate cases are covered */
 
+/* Set API context */
+if(H5CX_push() < 0)
+    HGOTO_ERROR(H5E_ATTR, H5E_CANTSET, H5I_INVALID_HID, "can't set API context")
+api_ctx_pushed = TRUE;
+
     /* Look up the # of attributes for the object */
-    if((ret_value = H5O_attr_count(loc, H5AC_ind_read_dxpl_id)) < 0)
+    if((ret_value = H5A__get_num_attrs(loc)) < 0)
         HGOTO_ERROR(H5E_ATTR, H5E_CANTCOUNT, FAIL, "can't get attribute count for object")
 
 done:
+if(api_ctx_pushed && H5CX_pop() < 0)
+    HDONE_ERROR(H5E_ATTR, H5E_CANTRESET, FAIL, "can't reset API context")
     FUNC_LEAVE_API(ret_value)
 } /* H5Aget_num_attrs() */
 
@@ -379,10 +419,8 @@ done:
 herr_t
 H5Aiterate1(hid_t loc_id, unsigned *attr_num, H5A_operator1_t op, void *op_data)
 {
-    H5A_attr_iter_op_t  attr_op;        /* Attribute operator */
-    hsize_t		start_idx;      /* Index of attribute to start iterating at */
-    hsize_t		last_attr;      /* Index of last attribute examined */
-    herr_t	        ret_value;      /* Return value */
+hbool_t     api_ctx_pushed = FALSE;             /* Whether API context pushed */
+    herr_t	ret_value;      /* Return value */
 
     FUNC_ENTER_API(FAIL)
     H5TRACE4("e", "i*Iux*x", loc_id, attr_num, op, op_data);
@@ -391,20 +429,18 @@ H5Aiterate1(hid_t loc_id, unsigned *attr_num, H5A_operator1_t op, void *op_data)
     if(H5I_ATTR == H5I_get_type(loc_id))
 	HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "location is not valid for an attribute")
 
-    /* Build attribute operator info */
-    attr_op.op_type = H5A_ATTR_OP_APP;
-    attr_op.u.app_op = op;
+/* Set API context */
+if(H5CX_push() < 0)
+    HGOTO_ERROR(H5E_ATTR, H5E_CANTSET, FAIL, "can't set API context")
+api_ctx_pushed = TRUE;
 
     /* Call attribute iteration routine */
-    last_attr = start_idx = (hsize_t)(attr_num ? *attr_num : 0);
-    if((ret_value = H5O_attr_iterate(loc_id, H5AC_ind_read_dxpl_id, H5_INDEX_CRT_ORDER, H5_ITER_INC, start_idx, &last_attr, &attr_op, op_data)) < 0)
+    if((ret_value = H5A__iterate_old(loc_id, attr_num, op, op_data)) < 0)
         HERROR(H5E_ATTR, H5E_BADITER, "error iterating over attributes");
 
-    /* Set the last attribute information */
-    if(attr_num)
-        *attr_num = (unsigned)last_attr;
-
 done:
+if(api_ctx_pushed && H5CX_pop() < 0)
+    HDONE_ERROR(H5E_ATTR, H5E_CANTRESET, FAIL, "can't reset API context")
     FUNC_LEAVE_API(ret_value)
 } /* H5Aiterate1() */
 #endif /* H5_NO_DEPRECATED_SYMBOLS */