diff options
Diffstat (limited to 'common/src/tx_thread_shell_entry.c')
| -rw-r--r-- | common/src/tx_thread_shell_entry.c | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/common/src/tx_thread_shell_entry.c b/common/src/tx_thread_shell_entry.c index 45fe9d6d..2a16a00b 100644 --- a/common/src/tx_thread_shell_entry.c +++ b/common/src/tx_thread_shell_entry.c @@ -9,6 +9,8 @@ * SPDX-License-Identifier: MIT **************************************************************************/ +// Portions of this file were generated with AI assistance. + /**************************************************************************/ /**************************************************************************/ @@ -134,6 +136,17 @@ VOID (*entry_exit_notify)(TX_THREAD *notify_thread_ptr, UINT type); #ifdef TX_NOT_INTERRUPTABLE + /* Set the suspending flag, so that the completion transition is marked as in + progress for the same interval it is marked in the interruptable + configuration below. Nothing in this configuration needs the flag to cancel + an interrupted suspension -- interrupts stay disabled through the whole + transition -- but the notification callback and the completion extension + below are application code, reached by a direct call, and interrupt lockout + does not stop either of them from calling a thread lifecycle service on this + same control block. The flag is what _tx_thread_delete and _tx_thread_reset + test in order to refuse one. */ + thread_ptr -> tx_thread_suspending = TX_TRUE; + #ifndef TX_DISABLE_NOTIFY_CALLBACKS /* Determine if an application callback routine is specified. */ @@ -148,6 +161,15 @@ VOID (*entry_exit_notify)(TX_THREAD *notify_thread_ptr, UINT type); /* Perform any additional activities for tool or user purpose. */ TX_THREAD_COMPLETED_EXTENSION(thread_ptr) + /* Clear the suspending flag. It has to be cleared here rather than after the + call below, because _tx_thread_system_ni_suspend returns to the scheduler for + a thread that is the current thread, which this one is, and so does not come + back. Clearing it afterwards would leave a normally completed thread marked + as transitioning for ever and therefore permanently undeletable. Clearing it + here loses nothing: everything from this point to the detachment runs with + interrupts disabled and calls no application code. */ + thread_ptr -> tx_thread_suspending = TX_FALSE; + /* Call actual non-interruptable thread suspension routine. */ _tx_thread_system_ni_suspend(thread_ptr, ((ULONG) 0)); |