/// <summary>
/// A result is a reply to a specific command
/// </summary>
private static void ProcessResult(CallbackMsg_t msg)
{
var result = msg.Data.ToType <SteamAPICallCompleted_t>();
//
// Do we have an entry added via OnCallComplete
//
if (!ResultCallbacks.TryGetValue(result.AsyncCall, out var callbackInfo))
{
//
// This can happen if the callback result was immediately available
// so we just returned that without actually going through the callback
// dance. It's okay for this to fail.
//
//
// But still let everyone know that this happened..
//
OnDebugCallback?.Invoke((CallbackType)result.Callback, $"[no callback waiting/required]", false);
return;
}
// Remove it before we do anything, incase the continuation throws exceptions
ResultCallbacks.Remove(result.AsyncCall);
// At this point whatever async routine called this
// continues running.
callbackInfo.continuation();
}
/// <summary>
/// A callback is a general global message
/// </summary>
private static void ProcessCallback(CallbackMsg_t msg, bool isServer)
{
OnDebugCallback?.Invoke(msg.Type, CallbackToString(msg.Type, msg.Data, msg.DataSize), isServer);
// Is this a special callback telling us that the call result is ready?
if (msg.Type == CallbackType.SteamAPICallCompleted)
{
ProcessResult(msg);
return;
}
if (Callbacks.TryGetValue(msg.Type, out var list))
{
actionsToCall.Clear();
foreach (var item in list)
{
if (item.server != isServer)
{
continue;
}
actionsToCall.Add(item.action);
}
foreach (var action in actionsToCall)
{
action(msg.Data);
}
actionsToCall.Clear();
}
}
internal static void RunFrame(bool isGameServer)
{
if (!IsInitialized)
{
throw new InvalidOperationException("Callback dispatcher is not initialized.");
}
HSteamPipe hSteamPipe = (HSteamPipe)(isGameServer ? NativeMethods.SteamGameServer_GetHSteamPipe() : NativeMethods.SteamAPI_GetHSteamPipe());
NativeMethods.SteamAPI_ManualDispatch_RunFrame(hSteamPipe);
var callbacksRegistry = isGameServer ? m_registeredGameServerCallbacks : m_registeredCallbacks;
while (NativeMethods.SteamAPI_ManualDispatch_GetNextCallback(hSteamPipe, m_pCallbackMsg))
{
CallbackMsg_t callbackMsg = (CallbackMsg_t)Marshal.PtrToStructure(m_pCallbackMsg, typeof(CallbackMsg_t));
try {
// Check for dispatching API call results
if (callbackMsg.m_iCallback == SteamAPICallCompleted_t.k_iCallback)
{
SteamAPICallCompleted_t callCompletedCb = (SteamAPICallCompleted_t)Marshal.PtrToStructure(callbackMsg.m_pubParam, typeof(SteamAPICallCompleted_t));
IntPtr pTmpCallResult = Marshal.AllocHGlobal((int)callCompletedCb.m_cubParam);
bool bFailed;
if (NativeMethods.SteamAPI_ManualDispatch_GetAPICallResult(hSteamPipe, callCompletedCb.m_hAsyncCall, pTmpCallResult, (int)callCompletedCb.m_cubParam, callCompletedCb.m_iCallback, out bFailed))
{
lock (m_sync) {
if (m_registeredCallResults.TryGetValue((ulong)callCompletedCb.m_hAsyncCall, out var callResults))
{
m_registeredCallResults.Remove((ulong)callCompletedCb.m_hAsyncCall);
foreach (var cr in callResults)
{
cr.OnRunCallResult(pTmpCallResult, bFailed, (ulong)callCompletedCb.m_hAsyncCall);
cr.SetUnregistered();
}
}
}
}
Marshal.FreeHGlobal(pTmpCallResult);
}
else
{
if (callbacksRegistry.TryGetValue(callbackMsg.m_iCallback, out var callbacks))
{
List <Callback> callbacksCopy;
lock (m_sync) {
callbacksCopy = new List <Callback>(callbacks);
}
foreach (var callback in callbacksCopy)
{
callback.OnRunCallback(callbackMsg.m_pubParam);
}
}
}
} catch (Exception e) {
ExceptionHandler(e);
} finally {
NativeMethods.SteamAPI_ManualDispatch_FreeLastCallback(hSteamPipe);
}
}
}
/// <summary>
/// A callback is a general global message
/// </summary>
private static void ProcessCallback(CallbackMsg_t msg)
{
// Is this a special callback telling us that the call result is ready?
if (msg.Type == CallbackType.SteamAPICallCompleted)
{
ProcessResult(msg);
return;
}
if (Callbacks.TryGetValue(msg.Type, out var list))
{
foreach (var item in list)
{
item.action(msg.Data);
}
}
}
/// <summary>
/// Calls RunFrame and processes events from this Steam Pipe
/// </summary>
public static void Frame(HSteamPipe pipe)
{
SteamAPI_ManualDispatch_RunFrame(pipe);
CallbackMsg_t msg = default;
while (SteamAPI_ManualDispatch_GetNextCallback(pipe, ref msg))
{
try
{
ProcessCallback(msg);
}
finally
{
SteamAPI_ManualDispatch_FreeLastCallback(pipe);
}
}
}
/// <summary>
/// A result is a reply to a specific command
/// </summary>
private static void ProcessResult(CallbackMsg_t msg)
{
var result = msg.Data.ToType <SteamAPICallCompleted_t>();
//
// Do we have an entry added via OnCallComplete
//
if (!ResultCallbacks.TryGetValue(result.AsyncCall, out var callbackInfo))
{
// Do we care? Should we throw errors?
return;
}
// Remove it before we do anything, incase the continuation throws exceptions
ResultCallbacks.Remove(result.AsyncCall);
// At this point whatever async routine called this
// continues running.
callbackInfo.continuation();
}
/// <summary>
/// Calls RunFrame and processes events from this Steam Pipe
/// </summary>
public static void Frame(HSteamPipe pipe)
{
if (runningFrame)
{
return;
}
try
{
runningFrame = true;
SteamAPI_ManualDispatch_RunFrame(pipe);
SteamNetworkingUtils.OutputDebugMessages();
CallbackMsg_t msg = default;
while (SteamAPI_ManualDispatch_GetNextCallback(pipe, ref msg))
{
try
{
ProcessCallback(msg, pipe == ServerPipe);
}
finally
{
SteamAPI_ManualDispatch_FreeLastCallback(pipe);
}
}
}
catch (System.Exception e)
{
OnException?.Invoke(e);
}
finally
{
runningFrame = false;
}
}
internal static extern bool SteamAPI_ManualDispatch_GetNextCallback(HSteamPipe pipe, [In, Out] ref CallbackMsg_t msg);
internal static void RunFrame(bool isGameServer)
{
if (!IsInitialized)
{
throw new InvalidOperationException("Callback dispatcher is not initialized.");
}
HSteamPipe hSteamPipe = (HSteamPipe)(isGameServer ? NativeMethods.SteamGameServer_GetHSteamPipe() : NativeMethods.SteamAPI_GetHSteamPipe());
NativeMethods.SteamAPI_ManualDispatch_RunFrame(hSteamPipe);
Dictionary <int, List <Callback> > dictionary = (isGameServer ? m_registeredGameServerCallbacks : m_registeredCallbacks);
while (NativeMethods.SteamAPI_ManualDispatch_GetNextCallback(hSteamPipe, m_pCallbackMsg))
{
CallbackMsg_t callbackMsg_t = (CallbackMsg_t)Marshal.PtrToStructure(m_pCallbackMsg, typeof(CallbackMsg_t));
try
{
if (callbackMsg_t.m_iCallback == 703)
{
SteamAPICallCompleted_t steamAPICallCompleted_t = (SteamAPICallCompleted_t)Marshal.PtrToStructure(callbackMsg_t.m_pubParam, typeof(SteamAPICallCompleted_t));
IntPtr intPtr = Marshal.AllocHGlobal((int)steamAPICallCompleted_t.m_cubParam);
if (NativeMethods.SteamAPI_ManualDispatch_GetAPICallResult(hSteamPipe, steamAPICallCompleted_t.m_hAsyncCall, intPtr, (int)steamAPICallCompleted_t.m_cubParam, steamAPICallCompleted_t.m_iCallback, out var pbFailed))
{
lock (m_sync)
{
if (m_registeredCallResults.TryGetValue((ulong)steamAPICallCompleted_t.m_hAsyncCall, out var value))
{
m_registeredCallResults.Remove((ulong)steamAPICallCompleted_t.m_hAsyncCall);
foreach (CallResult item in value)
{
item.OnRunCallResult(intPtr, pbFailed, (ulong)steamAPICallCompleted_t.m_hAsyncCall);
item.SetUnregistered();
}
}
}
}
Marshal.FreeHGlobal(intPtr);
}
else
{
if (!dictionary.TryGetValue(callbackMsg_t.m_iCallback, out var value2))
{
continue;
}
List <Callback> list;
lock (m_sync)
{
list = new List <Callback>(value2);
}
foreach (Callback item2 in list)
{
item2.OnRunCallback(callbackMsg_t.m_pubParam);
}
continue;
}
}
catch (Exception e)
{
ExceptionHandler(e);
}
finally
{
NativeMethods.SteamAPI_ManualDispatch_FreeLastCallback(hSteamPipe);
}
}
}