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[Tizen.System.Session] Ensure no-op (un)registration works correctly #7848

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Merged
chanwoochoi merged 1 commit into from
Sep 19, 2026
Merged

[Tizen.System.Session] Ensure no-op (un)registration works correctly #7848

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16 changes: 16 additions & 0 deletions src/Tizen.System.Session/Session/Session.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -325,6 +325,8 @@ public event EventHandler<AddUserEventArgs> AddUserWait
{
lock (_addUserWaitLock)
{
if (value == null)
return;
if (_addUserWaitHandler == null)
RegisterCallbackForEvent(SessionEventType.AddUserWait, ref _addUserWaitCB, OnAddUserWait);
_addUserWaitHandler += value;
Expand All @@ -334,6 +336,8 @@ public event EventHandler<AddUserEventArgs> AddUserWait
{
lock (_addUserWaitLock)
{
if (_addUserWaitHandler == null)
return;
_addUserWaitHandler -= value;
if (_addUserWaitHandler == null)
UnregisterCallbackForEvent(SessionEventType.AddUserWait, ref _addUserWaitCB);
Expand Down Expand Up @@ -367,6 +371,8 @@ public event EventHandler<RemoveUserEventArgs> RemoveUserWait
{
lock (_removeUserWaitLock)
{
if (value == null)
return;
if (_removeUserWaitHandler == null)
RegisterCallbackForEvent(SessionEventType.RemoveUserWait, ref _removeUserWaitCB, OnRemoveUserWait);
_removeUserWaitHandler += value;
Expand All @@ -376,6 +382,8 @@ public event EventHandler<RemoveUserEventArgs> RemoveUserWait
{
lock (_removeUserWaitLock)
{
if (_removeUserWaitHandler == null)
return;
_removeUserWaitHandler -= value;
if (_removeUserWaitHandler == null)
UnregisterCallbackForEvent(SessionEventType.RemoveUserWait, ref _removeUserWaitCB);
Expand Down Expand Up @@ -409,6 +417,8 @@ public event EventHandler<SwitchUserWaitEventArgs> SwitchUserWait
{
lock (_switchUserWaitLock)
{
if (value == null)
return;
if (_switchUserWaitHandler == null)
RegisterCallbackForEvent(SessionEventType.SwitchUserWait, ref _switchUserWaitCB, OnSwitchUserWait);
_switchUserWaitHandler += value;
Expand All @@ -418,6 +428,8 @@ public event EventHandler<SwitchUserWaitEventArgs> SwitchUserWait
{
lock (_switchUserWaitLock)
{
if (_switchUserWaitHandler == null)
return;
_switchUserWaitHandler -= value;
if (_switchUserWaitHandler == null)
UnregisterCallbackForEvent(SessionEventType.SwitchUserWait, ref _switchUserWaitCB);
Expand Down Expand Up @@ -451,6 +463,8 @@ public event EventHandler<SwitchUserCompletionEventArgs> SwitchUserCompleted
{
lock (_switchUserCompletionLock)
{
if (value == null)
return;
if (_switchUserCompletionHandler == null)
RegisterCallbackForEvent(SessionEventType.SwitchUserCompletion, ref _switchUserCompletionCB, OnSwitchUserCompletion);
_switchUserCompletionHandler += value;
Expand All @@ -460,6 +474,8 @@ public event EventHandler<SwitchUserCompletionEventArgs> SwitchUserCompleted
{
lock (_switchUserCompletionLock)
{
if (_switchUserCompletionHandler == null)
return;
_switchUserCompletionHandler -= value;
if (_switchUserCompletionHandler == null)
UnregisterCallbackForEvent(SessionEventType.SwitchUserCompletion, ref _switchUserCompletionCB);
Expand Down
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