Files
SingularityViewer/indra/llplugin/llpluginmessage.cpp
Aleric Inglewood 6848c2df6f Fix underlinkage of libmedia_plugin_webkit.so
Fixed by updating indra/cmake/WebKitLibPlugin.cmake with
version from imprudence.

This commit also contains removal of execute permissions
of source files and configure files, sorry...
2011-05-02 23:13:15 +02:00

446 lines
9.9 KiB
C++

/**
* @file llpluginmessage.cpp
* @brief LLPluginMessage encapsulates the serialization/deserialization of messages passed to and from plugins.
*
* @cond
* $LicenseInfo:firstyear=2008&license=viewergpl$
*
* Copyright (c) 2008-2010, Linden Research, Inc.
*
* 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://secondlife.com/developers/opensource/gplv2
*
* 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://secondlife.com/developers/opensource/flossexception
*
* 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.
*
* ALL LINDEN LAB SOURCE CODE IS PROVIDED "AS IS." LINDEN LAB MAKES NO
* WARRANTIES, EXPRESS, IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY,
* COMPLETENESS OR PERFORMANCE.
* $/LicenseInfo$
*
* @endcond
*/
#include "linden_common.h"
#include "llpluginmessage.h"
#include "llsdserialize.h"
#include "u64.h"
/**
* Constructor.
*/
LLPluginMessage::LLPluginMessage()
{
}
/**
* Constructor.
*
* @param[in] p Existing message
*/
LLPluginMessage::LLPluginMessage(const LLPluginMessage &p)
{
mMessage = p.mMessage;
}
/**
* Constructor.
*
* @param[in] message_class Message class
* @param[in] message_name Message name
*/
LLPluginMessage::LLPluginMessage(const std::string &message_class, const std::string &message_name)
{
setMessage(message_class, message_name);
}
/**
* Destructor.
*/
LLPluginMessage::~LLPluginMessage()
{
}
/**
* Reset all internal state.
*/
void LLPluginMessage::clear()
{
mMessage = LLSD::emptyMap();
mMessage["params"] = LLSD::emptyMap();
}
/**
* Sets the message class and name. Also has the side-effect of clearing any key-value pairs in the message.
*
* @param[in] message_class Message class
* @param[in] message_name Message name
*/
void LLPluginMessage::setMessage(const std::string &message_class, const std::string &message_name)
{
clear();
mMessage["class"] = message_class;
mMessage["name"] = message_name;
}
/**
* Sets a key/value pair in the message, where the value is a string.
*
* @param[in] key Key
* @param[in] value String value
*/
void LLPluginMessage::setValue(const std::string &key, const std::string &value)
{
mMessage["params"][key] = value;
}
/**
* Sets a key/value pair in the message, where the value is LLSD.
*
* @param[in] key Key
* @param[in] value LLSD value
*/
void LLPluginMessage::setValueLLSD(const std::string &key, const LLSD &value)
{
mMessage["params"][key] = value;
}
/**
* Sets a key/value pair in the message, where the value is signed 32-bit.
*
* @param[in] key Key
* @param[in] value 32-bit signed value
*/
void LLPluginMessage::setValueS32(const std::string &key, S32 value)
{
mMessage["params"][key] = value;
}
/**
* Sets a key/value pair in the message, where the value is unsigned 32-bit. The value is stored as a string beginning with "0x".
*
* @param[in] key Key
* @param[in] value 32-bit unsigned value
*/
void LLPluginMessage::setValueU32(const std::string &key, U32 value)
{
std::stringstream temp;
temp << "0x" << std::hex << value;
setValue(key, temp.str());
}
/**
* Sets a key/value pair in the message, where the value is a bool.
*
* @param[in] key Key
* @param[in] value Boolean value
*/
void LLPluginMessage::setValueBoolean(const std::string &key, bool value)
{
mMessage["params"][key] = value;
}
/**
* Sets a key/value pair in the message, where the value is a double.
*
* @param[in] key Key
* @param[in] value Boolean value
*/
void LLPluginMessage::setValueReal(const std::string &key, F64 value)
{
mMessage["params"][key] = value;
}
/**
* Sets a key/value pair in the message, where the value is a pointer. The pointer is stored as a string.
*
* @param[in] key Key
* @param[in] value Pointer value
*/
void LLPluginMessage::setValuePointer(const std::string &key, void* value)
{
std::stringstream temp;
// iostreams should output pointer values in hex with an initial 0x by default.
temp << value;
setValue(key, temp.str());
}
/**
* Gets the message class.
*
* @return Message class
*/
std::string LLPluginMessage::getClass(void) const
{
return mMessage["class"];
}
/**
* Gets the message name.
*
* @return Message name
*/
std::string LLPluginMessage::getName(void) const
{
return mMessage["name"];
}
/**
* Returns true if the specified key exists in this message (useful for optional parameters).
*
* @param[in] key Key
*
* @return True if key exists, false otherwise.
*/
bool LLPluginMessage::hasValue(const std::string &key) const
{
bool result = false;
if(mMessage["params"].has(key))
{
result = true;
}
return result;
}
/**
* Gets the value of a key as a string. If the key does not exist, an empty string will be returned.
*
* @param[in] key Key
*
* @return String value of key if key exists, empty string if key does not exist.
*/
std::string LLPluginMessage::getValue(const std::string &key) const
{
std::string result;
if(mMessage["params"].has(key))
{
result = mMessage["params"][key].asString();
}
return result;
}
/**
* Gets the value of a key as LLSD. If the key does not exist, a null LLSD will be returned.
*
* @param[in] key Key
*
* @return LLSD value of key if key exists, null LLSD if key does not exist.
*/
LLSD LLPluginMessage::getValueLLSD(const std::string &key) const
{
LLSD result;
if(mMessage["params"].has(key))
{
result = mMessage["params"][key];
}
return result;
}
/**
* Gets the value of a key as signed 32-bit int. If the key does not exist, 0 will be returned.
*
* @param[in] key Key
*
* @return Signed 32-bit int value of key if key exists, 0 if key does not exist.
*/
S32 LLPluginMessage::getValueS32(const std::string &key) const
{
S32 result = 0;
if(mMessage["params"].has(key))
{
result = mMessage["params"][key].asInteger();
}
return result;
}
/**
* Gets the value of a key as unsigned 32-bit int. If the key does not exist, 0 will be returned.
*
* @param[in] key Key
*
* @return Unsigned 32-bit int value of key if key exists, 0 if key does not exist.
*/
U32 LLPluginMessage::getValueU32(const std::string &key) const
{
U32 result = 0;
if(mMessage["params"].has(key))
{
std::string value = mMessage["params"][key].asString();
result = (U32)strtoul(value.c_str(), NULL, 16);
}
return result;
}
/**
* Gets the value of a key as a bool. If the key does not exist, false will be returned.
*
* @param[in] key Key
*
* @return Boolean value of key if it exists, false otherwise.
*/
bool LLPluginMessage::getValueBoolean(const std::string &key) const
{
bool result = false;
if(mMessage["params"].has(key))
{
result = mMessage["params"][key].asBoolean();
}
return result;
}
/**
* Gets the value of a key as a double. If the key does not exist, 0 will be returned.
*
* @param[in] key Key
*
* @return Value as a double if key exists, 0 otherwise.
*/
F64 LLPluginMessage::getValueReal(const std::string &key) const
{
F64 result = 0.0f;
if(mMessage["params"].has(key))
{
result = mMessage["params"][key].asReal();
}
return result;
}
/**
* Gets the value of a key as a pointer. If the key does not exist, NULL will be returned.
*
* @param[in] key Key
*
* @return Pointer value if key exists, NULL otherwise.
*/
void* LLPluginMessage::getValuePointer(const std::string &key) const
{
void* result = NULL;
if(mMessage["params"].has(key))
{
std::string value = mMessage["params"][key].asString();
result = (void*)llstrtou64(value.c_str(), NULL, 16);
}
return result;
}
/**
* Flatten the message into a string.
*
* @return Message as a string.
*/
std::string LLPluginMessage::generate(void) const
{
std::ostringstream result;
// Pretty XML may be slightly easier to deal with while debugging...
// LLSDSerialize::toXML(mMessage, result);
LLSDSerialize::toPrettyXML(mMessage, result);
return result.str();
}
/**
* Parse an incoming message into component parts. Clears all existing state before starting the parse.
*
* @return Returns -1 on failure, otherwise returns the number of key/value pairs in the incoming message.
*/
int LLPluginMessage::parse(const std::string &message)
{
// clear any previous state
clear();
std::istringstream input(message);
S32 parse_result = LLSDSerialize::fromXML(mMessage, input);
return (int)parse_result;
}
/**
* Destructor
*/
LLPluginMessageListener::~LLPluginMessageListener()
{
// TODO: should listeners have a way to ensure they're removed from dispatcher lists when deleted?
}
/**
* Destructor
*/
LLPluginMessageDispatcher::~LLPluginMessageDispatcher()
{
}
/**
* Add a message listener. TODO:DOC need more info on what uses this. when are multiple listeners needed?
*
* @param[in] listener Message listener
*/
void LLPluginMessageDispatcher::addPluginMessageListener(LLPluginMessageListener *listener)
{
mListeners.insert(listener);
}
/**
* Remove a message listener.
*
* @param[in] listener Message listener
*/
void LLPluginMessageDispatcher::removePluginMessageListener(LLPluginMessageListener *listener)
{
mListeners.erase(listener);
}
/**
* Distribute a message to all message listeners.
*
* @param[in] message Message
*/
void LLPluginMessageDispatcher::dispatchPluginMessage(const LLPluginMessage &message)
{
for (listener_set_t::iterator it = mListeners.begin();
it != mListeners.end();
)
{
LLPluginMessageListener* listener = *it;
listener->receivePluginMessage(message);
// In case something deleted an entry.
it = mListeners.upper_bound(listener);
}
}