Revision: 54982
http://brlcad.svn.sourceforge.net/brlcad/?rev=54982&view=rev
Author: brlcad
Date: 2013-03-30 02:00:47 +0000 (Sat, 30 Mar 2013)
Log Message:
-----------
bump RT_DBNHASH up to the next power of two instead of 5120 and document the
heck out of it as a deprecated interface. include memory usage calculations
(64kb). the increase from 1024 should slow down all of the callers that
manually iterate over the hash (prep, search, db open/lookup, push, tops, ls,
...) but probably not noticeably so -- more likely to slow lookups down
iterating down bigger linked lists with big geometry (need to
profile/test/compare).
Modified Paths:
--------------
brlcad/trunk/CHANGES
brlcad/trunk/include/raytrace.h
Modified: brlcad/trunk/CHANGES
===================================================================
--- brlcad/trunk/CHANGES 2013-03-30 01:37:37 UTC (rev 54981)
+++ brlcad/trunk/CHANGES 2013-03-30 02:00:47 UTC (rev 54982)
@@ -67,15 +67,16 @@
7.24
----
+include/raytrace.h librt
+ RT_DBHASH and RT_DBNHASH [deprecation 7.24]
-
7.22
----
-raytrace.h librt
+include/raytrace.h librt
nmg_model_break_e_on_v -> nmg_break_e_on_v [deprecation 7.22]
RT_GET_TREE -> BU_GET [deprecation 7.22]
RT_FREE_TREE -> BU_PUT [deprecation 7.22]
-bu.h
+include/bu.h
bu_parse_mm() [deprecated 7.22]
librtserver
becoming stand-alone project, removes optional java dependency
[deprecated 7.22]
@@ -93,18 +94,18 @@
bspline primitive [deprecated 7.20]
poly primitive [deprecated 7.20]
hf primitive [deprecated 7.20]
-bu.h
+include/bu.h
bu_vls_init_if_uninit() -> bu_vls_init() [deprecated 7.20]
autogen.sh && configure
GNU Autotools build system -> CMake build system [deprecated 7.20]
./configure -> cmake . [deprecated 7.20]
-raytrace.h
+include/raytrace.h
rt_load_attrs() -> rt_gettrees_and_attrs() or db5_import_attributs()
[deprecated 7.20]
db_regexp_match() -> !bu_fnmatch() [deprecated 7.20]
7.18
----
-raytrace.h rt_comb_internal members
+include/raytrace.h rt_comb_internal members
region_id -> region_id attribute [deprecated 7.18]
aircode -> air attribute [deprecated 7.18]
GIFTmater -> material_id attribute [deprecated 7.18]
Modified: brlcad/trunk/include/raytrace.h
===================================================================
--- brlcad/trunk/include/raytrace.h 2013-03-30 01:37:37 UTC (rev 54981)
+++ brlcad/trunk/include/raytrace.h 2013-03-30 02:00:47 UTC (rev 54982)
@@ -772,14 +772,33 @@
/**
+ * DEPRECATED: external applications should use other LIBRT API to
+ * access database objects.
+ *
* The directory is organized as forward linked lists hanging off of
* one of RT_DBNHASH headers in the db_i structure.
+ *
+ * FIXME: this should not be public API, push container and iteration
+ * down into LIBRT. External applications should not use this.
*/
-#define RT_DBNHASH 5120 /**< @brief size of hash table
*/
+#define RT_DBNHASH 8192 /**< @brief hash table is an
+ * array of linked lists with
+ * this many array pointer
+ * elements (Memory use for
+ * 32-bit: 32KB, 64-bit: 64KB)
+ */
#if ((RT_DBNHASH)&((RT_DBNHASH)-1)) != 0
+/**
+ * DEPRECATED: external applications should use other LIBRT API to
+ * access database objects.
+ */
#define RT_DBHASH(sum) ((size_t)(sum) % (RT_DBNHASH))
#else
+/**
+ * DEPRECATED: external applications should use other LIBRT API to
+ * access database objects.
+ */
#define RT_DBHASH(sum) ((size_t)(sum) & ((RT_DBNHASH)-1))
#endif
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