/**
* @brief Attempts to executes a Lua script.
* If it has not been compiled already, it will compile the script
* and cache it in the internal script map.
*
* @param pUser The user running the script.
* @param pNpc The NPC attached to the script.
* @param nEventID Identifier for the event.
* @param bSelectedReward The reward selected, if applicable.
* @param filename The script's filename.
*
* @return true if it succeeds, false if it fails.
*/
bool CLuaEngine::ExecuteScript(CUser * pUser, CNpc * pNpc, int32 nEventID, int8 bSelectedReward, const char * filename)
{
ScriptBytecodeMap::iterator itr;
bool result = false;
m_lock->AcquireReadLock();
itr = m_scriptMap.find(filename);
if (itr == m_scriptMap.end())
{
// Build full path to script
std::string szPath = LUA_SCRIPT_DIRECTORY;
szPath += filename;
// Release the read lock (we're not reading anymore)
m_lock->ReleaseReadLock();
// Attempt to compile
BytecodeBuffer bytecode;
bytecode.reserve(LUA_SCRIPT_BUFFER_SIZE);
if (!SelectAvailableScript()->CompileScript(szPath.c_str(), bytecode))
{
printf("ERROR: Could not compile Lua script.\n");
printf("FILE: %s\n", szPath.c_str());
printf("USER: %s\n", pUser->GetName().c_str());
printf("ZONE: %d\n", pUser->GetZoneID());
printf("NPC ID: %d\n", pNpc->m_sSid);
printf("-\n");
return false;
}
// Acquire the write lock (we're adding the compiled script)
m_lock->AcquireWriteLock();
#if !defined(LUA_SCRIPT_CACHE_DISABLED)
// Add the script to our map
m_scriptMap[filename] = bytecode;
#endif
// Now that we have the bytecode, we can use it.
result = SelectAvailableScript()->ExecuteScript(pUser, pNpc, nEventID, bSelectedReward,
filename, bytecode);
// Done using the lock.
m_lock->ReleaseWriteLock();
}
else
{
// Already have the bytecode, so now we need to use it.
result = SelectAvailableScript()->ExecuteScript(pUser, pNpc, nEventID, bSelectedReward,
filename, itr->second);
// Done using the lock.
m_lock->ReleaseReadLock();
}
return result;
}
/**
* @brief Attempts to executes a Lua script.
* If it has not been compiled already, it will compile the script
* and cache it in the internal script map.
*
* @param pUser The user running the script.
* @param pNpc The NPC attached to the script.
* @param nEventID Identifier for the event.
* @param bSelectedReward The reward selected, if applicable.
* @param filename The script's filename.
*
* @return true if it succeeds, false if it fails.
*/
bool CLuaEngine::ExecuteScript(CUser * pUser, CNpc * pNpc, int32 nEventID, int8 bSelectedReward, const char * filename)
{
ScriptBytecodeMap::iterator itr;
bool result = false;
m_lock->AcquireReadLock();
itr = m_scriptMap.find(filename);
if (itr == m_scriptMap.end())
{
// Build full path to script
char szPath[_MAX_PATH];
_snprintf(szPath, sizeof(szPath), LUA_SCRIPT_DIRECTORY "%s", filename);
// Release the read lock (we're not reading anymore)
m_lock->ReleaseReadLock();
// Attempt to compile
BytecodeBuffer bytecode;
bytecode.reserve(LUA_SCRIPT_BUFFER_SIZE);
if (!SelectAvailableScript()->CompileScript(szPath, bytecode))
{
printf("ERROR: Could not compile Lua script `%s`.\n", szPath);
return false;
}
// Acquire the write lock (we're adding the compiled script)
m_lock->AcquireWriteLock();
#if !defined(LUA_SCRIPT_CACHE_DISABLED)
// Add the script to our map
m_scriptMap[filename] = bytecode;
#endif
// Now that we have the bytecode, we can use it.
result = SelectAvailableScript()->ExecuteScript(pUser, pNpc, nEventID, bSelectedReward,
filename, bytecode);
// Done using the lock.
m_lock->ReleaseWriteLock();
}
else
{
// Already have the bytecode, so now we need to use it.
result = SelectAvailableScript()->ExecuteScript(pUser, pNpc, nEventID, bSelectedReward,
filename, itr->second);
// Done using the lock.
m_lock->ReleaseReadLock();
}
return result;
}
