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-rw-r--r--indra/llxuixml/llinitparam.h208
1 files changed, 112 insertions, 96 deletions
diff --git a/indra/llxuixml/llinitparam.h b/indra/llxuixml/llinitparam.h
index c9c1d4af90..869b0c2cd6 100644
--- a/indra/llxuixml/llinitparam.h
+++ b/indra/llxuixml/llinitparam.h
@@ -3,31 +3,25 @@ f * @file llinitparam.h
* @brief parameter block abstraction for creating complex objects and
* parsing construction parameters from xml and LLSD
*
- * $LicenseInfo:firstyear=2008&license=viewergpl$
- *
- * Copyright (c) 2008-2009, Linden Research, Inc.
- *
+ * $LicenseInfo:firstyear=2008&license=viewerlgpl$
* Second Life Viewer Source Code
- * The source code in this file ("Source Code") is provided by Linden Lab
- * to you under the terms of the GNU General Public License, version 2.0
- * ("GPL"), unless you have obtained a separate licensing agreement
- * ("Other License"), formally executed by you and Linden Lab. Terms of
- * the GPL can be found in doc/GPL-license.txt in this distribution, or
- * online at http://secondlifegrid.net/programs/open_source/licensing/gplv2
+ * Copyright (C) 2010, Linden Research, Inc.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation;
+ * version 2.1 of the License only.
*
- * There are special exceptions to the terms and conditions of the GPL as
- * it is applied to this Source Code. View the full text of the exception
- * in the file doc/FLOSS-exception.txt in this software distribution, or
- * online at
- * http://secondlifegrid.net/programs/open_source/licensing/flossexception
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
*
- * By copying, modifying or distributing this software, you acknowledge
- * that you have read and understood your obligations described above,
- * and agree to abide by those obligations.
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*
- * ALL LINDEN LAB SOURCE CODE IS PROVIDED "AS IS." LINDEN LAB MAKES NO
- * WARRANTIES, EXPRESS, IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY,
- * COMPLETENESS OR PERFORMANCE.
+ * Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA
* $/LicenseInfo$
*/
@@ -477,10 +471,10 @@ namespace LLInitParam
bool deserializeBlock(Parser& p, Parser::name_stack_range_t name_stack);
bool serializeBlock(Parser& p, Parser::name_stack_t name_stack = Parser::name_stack_t(), const BaseBlock* diff_block = NULL) const;
- virtual bool inspectBlock(Parser& p, Parser::name_stack_t name_stack = Parser::name_stack_t()) const;
+ bool inspectBlock(Parser& p, Parser::name_stack_t name_stack = Parser::name_stack_t()) const;
- const BlockDescriptor& getBlockDescriptor() const { return *mBlockDescriptor; }
- BlockDescriptor& getBlockDescriptor() { return *mBlockDescriptor; }
+ const BlockDescriptor& mostDerivedBlockDescriptor() const { return *mBlockDescriptor; }
+ BlockDescriptor& mostDerivedBlockDescriptor() { return *mBlockDescriptor; }
// take all provided params from other and apply to self
bool overwriteFrom(const BaseBlock& other)
@@ -507,7 +501,7 @@ namespace LLInitParam
BlockDescriptor* mBlockDescriptor; // most derived block descriptor
- static BlockDescriptor& blockDescriptor()
+ static BlockDescriptor& selfBlockDescriptor()
{
static BlockDescriptor sBlockDescriptor;
return sBlockDescriptor;
@@ -559,7 +553,7 @@ namespace LLInitParam
TypedParam(BlockDescriptor& block_descriptor, const char* name, value_assignment_t value, ParamDescriptor::validation_func_t validate_func, S32 min_count, S32 max_count)
: Param(block_descriptor.mCurrentBlockPtr)
{
- if (block_descriptor.mInitializationState == BlockDescriptor::INITIALIZING)
+ if (LL_UNLIKELY(block_descriptor.mInitializationState == BlockDescriptor::INITIALIZING))
{
ParamDescriptor param_descriptor(block_descriptor.mCurrentBlockPtr->getHandleFromParam(this),
&mergeWith,
@@ -584,6 +578,7 @@ namespace LLInitParam
{
if (parser.readValue<T>(typed_param.mData.mValue))
{
+ typed_param.mData.clearKey();
typed_param.setProvided(true);
typed_param.enclosingBlock().setLastChangedParam(param, true);
return true;
@@ -690,7 +685,7 @@ namespace LLInitParam
&& (overwrite || !dst_typed_param.isProvided()))
{
dst_typed_param.mData.clearKey();
- dst_typed_param = src_typed_param;
+ dst_typed_param.set(src_typed_param.get());
return true;
}
return false;
@@ -722,7 +717,7 @@ namespace LLInitParam
: Param(block_descriptor.mCurrentBlockPtr),
T(value)
{
- if (block_descriptor.mInitializationState == BlockDescriptor::INITIALIZING)
+ if (LL_UNLIKELY(block_descriptor.mInitializationState == BlockDescriptor::INITIALIZING))
{
ParamDescriptor param_descriptor(block_descriptor.mCurrentBlockPtr->getHandleFromParam(this),
&mergeWith,
@@ -741,6 +736,7 @@ namespace LLInitParam
// attempt to parse block...
if(typed_param.deserializeBlock(parser, name_stack))
{
+ typed_param.mData.clearKey();
typed_param.enclosingBlock().setLastChangedParam(param, true);
return true;
}
@@ -856,21 +852,10 @@ namespace LLInitParam
{
const self_t& src_typed_param = static_cast<const self_t&>(src);
self_t& dst_typed_param = static_cast<self_t&>(dst);
- if (overwrite)
+ if (dst_typed_param.T::merge(T::selfBlockDescriptor(), src_typed_param, overwrite || !dst_typed_param.isProvided()))
{
- if (dst_typed_param.T::overwriteFrom(src_typed_param))
- {
- dst_typed_param.mData.clearKey();
- return true;
- }
- }
- else
- {
- if (dst_typed_param.T::fillFrom(src_typed_param))
- {
- dst_typed_param.mData.clearKey();
- return true;
- }
+ dst_typed_param.mData.clearKey();
+ return true;
}
return false;
}
@@ -911,7 +896,7 @@ namespace LLInitParam
mValues(value)
{
mCachedKeys.resize(mValues.size());
- if (block_descriptor.mInitializationState == BlockDescriptor::INITIALIZING)
+ if (LL_UNLIKELY(block_descriptor.mInitializationState == BlockDescriptor::INITIALIZING))
{
ParamDescriptor param_descriptor(block_descriptor.mCurrentBlockPtr->getHandleFromParam(this),
&mergeWith,
@@ -1060,9 +1045,9 @@ namespace LLInitParam
self_t& dst_typed_param = static_cast<self_t&>(dst);
if (src_typed_param.isProvided()
- && (overwrite || !isProvided()))
+ && (overwrite || !dst_typed_param.isProvided()))
{
- dst_typed_param = src_typed_param;
+ dst_typed_param.set(src_typed_param.get());
return true;
}
return false;
@@ -1094,7 +1079,7 @@ namespace LLInitParam
mLastParamGeneration(0)
{
mCachedKeys.resize(mValues.size());
- if (block_descriptor.mInitializationState == BlockDescriptor::INITIALIZING)
+ if (LL_UNLIKELY(block_descriptor.mInitializationState == BlockDescriptor::INITIALIZING))
{
ParamDescriptor param_descriptor(block_descriptor.mCurrentBlockPtr->getHandleFromParam(this),
&mergeWith,
@@ -1252,7 +1237,7 @@ namespace LLInitParam
if (src_typed_param.isProvided()
&& (overwrite || !dst_typed_param.isProvided()))
{
- dst_typed_param = src_typed_param;
+ dst_typed_param.set(src_typed_param.get());
return true;
}
return false;
@@ -1282,13 +1267,24 @@ namespace LLInitParam
// take all provided params from other and apply to self
bool overwriteFrom(const self_t& other)
{
- mCurChoice = other.mCurChoice;
- return BaseBlock::merge(blockDescriptor(), other, true);
+ return merge(selfBlockDescriptor(), other, true);
}
// take all provided params that are not already provided, and apply to self
bool fillFrom(const self_t& other)
{
+ return merge(selfBlockDescriptor(), other, false);
+ }
+
+ // merge with other block
+ bool merge(BlockDescriptor& block_data, const self_t& other, bool overwrite)
+ {
+ // only merge a choice if we are overwriting with other's contents
+ if (overwrite)
+ {
+ mCurChoice = other.mCurChoice;
+ return BaseBlock::merge(selfBlockDescriptor(), other, overwrite);
+ }
return false;
}
@@ -1314,7 +1310,7 @@ namespace LLInitParam
Choice()
: mCurChoice(0)
{
- BaseBlock::init(blockDescriptor(), BaseBlock::blockDescriptor(), sizeof(DERIVED_BLOCK));
+ BaseBlock::init(selfBlockDescriptor(), BaseBlock::selfBlockDescriptor(), sizeof(DERIVED_BLOCK));
}
// Alternatives are mutually exclusive wrt other Alternatives in the same block.
@@ -1331,13 +1327,14 @@ namespace LLInitParam
typedef typename super_t::value_assignment_t value_assignment_t;
explicit Alternative(const char* name, value_assignment_t val = DefaultInitializer<T>::get())
- : super_t(DERIVED_BLOCK::blockDescriptor(), name, val, NULL, 0, 1),
+ : super_t(DERIVED_BLOCK::selfBlockDescriptor(), name, val, NULL, 0, 1),
mOriginalValue(val)
{
// assign initial choice to first declared option
- DERIVED_BLOCK* blockp = ((DERIVED_BLOCK*)DERIVED_BLOCK::blockDescriptor().mCurrentBlockPtr);
- if (DERIVED_BLOCK::blockDescriptor().mInitializationState == BlockDescriptor::INITIALIZING
- && blockp->mCurChoice == 0)
+ DERIVED_BLOCK* blockp = ((DERIVED_BLOCK*)DERIVED_BLOCK::selfBlockDescriptor().mCurrentBlockPtr);
+ if (LL_UNLIKELY(
+ DERIVED_BLOCK::selfBlockDescriptor().mInitializationState == BlockDescriptor::INITIALIZING
+ && blockp->mCurChoice == 0))
{
blockp->mCurChoice = Param::enclosingBlock().getHandleFromParam(this);
}
@@ -1382,7 +1379,7 @@ namespace LLInitParam
};
protected:
- static BlockDescriptor& blockDescriptor()
+ static BlockDescriptor& selfBlockDescriptor()
{
static BlockDescriptor sBlockDescriptor;
return sBlockDescriptor;
@@ -1410,19 +1407,19 @@ namespace LLInitParam
// take all provided params from other and apply to self
bool overwriteFrom(const self_t& other)
{
- return BaseBlock::merge(blockDescriptor(), other, true);
+ return BaseBlock::merge(selfBlockDescriptor(), other, true);
}
// take all provided params that are not already provided, and apply to self
bool fillFrom(const self_t& other)
{
- return BaseBlock::merge(blockDescriptor(), other, false);
+ return BaseBlock::merge(selfBlockDescriptor(), other, false);
}
protected:
Block()
{
//#pragma message("Parsing LLInitParam::Block")
- BaseBlock::init(blockDescriptor(), BASE_BLOCK::blockDescriptor(), sizeof(DERIVED_BLOCK));
+ BaseBlock::init(selfBlockDescriptor(), BASE_BLOCK::selfBlockDescriptor(), sizeof(DERIVED_BLOCK));
}
//
@@ -1436,7 +1433,7 @@ namespace LLInitParam
typedef typename super_t::value_assignment_t value_assignment_t;
explicit Optional(const char* name = "", value_assignment_t val = DefaultInitializer<T>::get())
- : super_t(DERIVED_BLOCK::blockDescriptor(), name, val, NULL, 0, 1)
+ : super_t(DERIVED_BLOCK::selfBlockDescriptor(), name, val, NULL, 0, 1)
{
//#pragma message("Parsing LLInitParam::Block::Optional")
}
@@ -1465,7 +1462,7 @@ namespace LLInitParam
// mandatory parameters require a name to be parseable
explicit Mandatory(const char* name = "", value_assignment_t val = DefaultInitializer<T>::get())
- : super_t(DERIVED_BLOCK::blockDescriptor(), name, val, &validate, 1, 1)
+ : super_t(DERIVED_BLOCK::selfBlockDescriptor(), name, val, &validate, 1, 1)
{}
Mandatory& operator=(value_assignment_t val)
@@ -1501,7 +1498,7 @@ namespace LLInitParam
typedef typename container_t::const_iterator const_iterator;
explicit Multiple(const char* name = "", value_assignment_t val = DefaultInitializer<container_t>::get())
- : super_t(DERIVED_BLOCK::blockDescriptor(), name, val, &validate, RANGE::minCount(), RANGE::maxCount())
+ : super_t(DERIVED_BLOCK::selfBlockDescriptor(), name, val, &validate, RANGE::minCount(), RANGE::maxCount())
{}
using super_t::operator();
@@ -1529,10 +1526,10 @@ namespace LLInitParam
{
public:
explicit Deprecated(const char* name)
- : Param(DERIVED_BLOCK::blockDescriptor().mCurrentBlockPtr)
+ : Param(DERIVED_BLOCK::selfBlockDescriptor().mCurrentBlockPtr)
{
- BlockDescriptor& block_descriptor = DERIVED_BLOCK::blockDescriptor();
- if (block_descriptor.mInitializationState == BlockDescriptor::INITIALIZING)
+ BlockDescriptor& block_descriptor = DERIVED_BLOCK::selfBlockDescriptor();
+ if (LL_UNLIKELY(block_descriptor.mInitializationState == BlockDescriptor::INITIALIZING))
{
ParamDescriptor param_descriptor(block_descriptor.mCurrentBlockPtr->getHandleFromParam(this),
NULL,
@@ -1561,7 +1558,7 @@ namespace LLInitParam
typedef Deprecated Ignored;
protected:
- static BlockDescriptor& blockDescriptor()
+ static BlockDescriptor& selfBlockDescriptor()
{
static BlockDescriptor sBlockDescriptor;
return sBlockDescriptor;
@@ -1574,6 +1571,13 @@ namespace LLInitParam
public Param
{
public:
+ typedef enum e_value_age
+ {
+ OLDER_THAN_BLOCK, // mData.mValue needs to be refreshed from the block parameters
+ NEWER_THAN_BLOCK, // mData.mValue holds the authoritative value (which has been replicated to the block parameters via setBlockFromValue)
+ SAME_AS_BLOCK // mData.mValue is derived from the block parameters, which are authoritative
+ } EValueAge;
+
typedef BlockValue<T> self_t;
typedef Block<TypedParam<T, TypeValues<T>, false> > block_t;
typedef const T& value_const_ref_t;
@@ -1582,9 +1586,9 @@ namespace LLInitParam
BlockValue(BlockDescriptor& block_descriptor, const char* name, value_assignment_t value, ParamDescriptor::validation_func_t validate_func, S32 min_count, S32 max_count)
: Param(block_descriptor.mCurrentBlockPtr),
- mData(value)
+ mData(value, NEWER_THAN_BLOCK)
{
- if (block_descriptor.mInitializationState == BlockDescriptor::INITIALIZING)
+ if (LL_UNLIKELY(block_descriptor.mInitializationState == BlockDescriptor::INITIALIZING))
{
ParamDescriptor param_descriptor(block_descriptor.mCurrentBlockPtr->getHandleFromParam(this),
&mergeWith,
@@ -1604,7 +1608,7 @@ namespace LLInitParam
static bool deserializeParam(Param& param, Parser& parser, const Parser::name_stack_range_t& name_stack, S32 generation)
{
- self_t& typed_param = static_cast<self_t&>(param);
+ DERIVED& typed_param = static_cast<DERIVED&>(param);
// type to apply parse direct value T
if (name_stack.first == name_stack.second)
{
@@ -1612,7 +1616,10 @@ namespace LLInitParam
{
typed_param.enclosingBlock().setLastChangedParam(param, true);
typed_param.setProvided(true);
- typed_param.mData.mLastParamVersion = typed_param.BaseBlock::getLastChangeVersion();
+ typed_param.mData.clearKey();
+ typed_param.mData.mValueAge = NEWER_THAN_BLOCK;
+ typed_param.setBlockFromValue();
+
return true;
}
@@ -1628,7 +1635,9 @@ namespace LLInitParam
typed_param.mData.setKey(name);
typed_param.enclosingBlock().setLastChangedParam(param, true);
typed_param.setProvided(true);
- typed_param.mData.mLastParamVersion = typed_param.BaseBlock::getLastChangeVersion();
+ typed_param.mData.mValueAge = NEWER_THAN_BLOCK;
+ typed_param.setBlockFromValue();
+
return true;
}
}
@@ -1703,16 +1712,18 @@ namespace LLInitParam
bool isProvided() const
{
- // either param value provided directly or block is sufficiently filled in
+ if (!Param::getProvided()) return false;
+
+ // block has an updated parameter
// if cached value is stale, regenerate from params
- if (Param::getProvided() && mData.mLastParamVersion < BaseBlock::getLastChangeVersion())
+ if (mData.mValueAge == OLDER_THAN_BLOCK)
{
if (block_t::validateBlock(false))
{
static_cast<const DERIVED*>(this)->setValueFromBlock();
// clear stale keyword associated with old value
mData.clearKey();
- mData.mLastParamVersion = BaseBlock::getLastChangeVersion();
+ mData.mValueAge = SAME_AS_BLOCK;
return true;
}
else
@@ -1722,8 +1733,11 @@ namespace LLInitParam
return false;
}
}
- // either no data provided, or we have a valid value in hand
- return Param::getProvided();
+ else
+ {
+ // we have a valid value in hand
+ return true;
+ }
}
void set(value_assignment_t val, bool flag_as_provided = true)
@@ -1731,7 +1745,7 @@ namespace LLInitParam
Param::enclosingBlock().setLastChangedParam(*this, flag_as_provided);
// set param version number to be up to date, so we ignore block contents
- mData.mLastParamVersion = BaseBlock::getLastChangeVersion();
+ mData.mValueAge = NEWER_THAN_BLOCK;
mData.mValue = val;
mData.clearKey();
@@ -1756,6 +1770,8 @@ namespace LLInitParam
if (user_provided)
{
setProvided(true); // some component provided
+ // a parameter changed, so our value is out of date
+ mData.mValueAge = OLDER_THAN_BLOCK;
}
}
@@ -1763,54 +1779,54 @@ namespace LLInitParam
value_assignment_t get() const
{
// if some parameters were provided, issue warnings on invalid blocks
- if (Param::getProvided() && (mData.mLastParamVersion < BaseBlock::getLastChangeVersion()))
+ if (Param::getProvided() && (mData.mValueAge == OLDER_THAN_BLOCK))
{
// go ahead and issue warnings at this point if any param is invalid
if(block_t::validateBlock(true))
{
static_cast<const DERIVED*>(this)->setValueFromBlock();
mData.clearKey();
- mData.mLastParamVersion = BaseBlock::getLastChangeVersion();
+ mData.mValueAge = SAME_AS_BLOCK;
}
}
return mData.mValue;
}
- // mutable to allow lazy updates on get
+
struct Data : public key_cache_t
{
- Data(const T& value)
+ Data(const T& value, EValueAge age)
: mValue(value),
- mLastParamVersion(0)
+ mValueAge(age)
{}
- T mValue;
- S32 mLastParamVersion;
+ T mValue;
+ EValueAge mValueAge;
};
+ // mutable to allow lazy updates on get
mutable Data mData;
private:
static bool mergeWith(Param& dst, const Param& src, bool overwrite)
{
- const self_t& src_typed_param = static_cast<const self_t&>(src);
- self_t& dst_typed_param = static_cast<self_t&>(dst);
+ const DERIVED& src_typed_param = static_cast<const DERIVED&>(src);
+ DERIVED& dst_typed_param = static_cast<DERIVED&>(dst);
if (src_typed_param.isProvided()
&& (overwrite || !dst_typed_param.isProvided()))
{
- // assign individual parameters
- dst_typed_param.BaseBlock::merge(block_t::blockDescriptor(), src_typed_param, overwrite);
-
- // then copy actual value
- dst_typed_param.mData.mValue = src_typed_param.get();
- dst_typed_param.mData.clearKey();
- dst_typed_param.setProvided(true);
-
- // Propagate value back to block params since the value was updated during this merge.
- // This will result in mData.mValue and the block params being in sync.
- static_cast<DERIVED&>(dst_typed_param).setBlockFromValue();
+ if (src_typed_param.mData.mValueAge == NEWER_THAN_BLOCK)
+ {
+ // copy value over
+ dst_typed_param.set(src_typed_param.get());
+ }
+ else
+ {
+ // merge individual parameters into destination
+ dst_typed_param.merge(block_t::selfBlockDescriptor(), src_typed_param, overwrite);
+ }
return true;
}
return false;
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-26 15:07:33 +0000