GUIDINGLI opened a new pull request, #16283:
URL: https://github.com/apache/nuttx/pull/16283
## Summary
struct work_s
{
union
{
struct
{
struct dq_entry_s dq; /* Implements a double linked list */
clock_t qtime; /* Time work queued */
} s;
struct wdog_s timer; /* Delay expiry timer */
struct wdog_period_s ptimer; /* Period expiry timer */
} u;
worker_t worker; /* Work callback */
FAR void *arg; /* Callback argument */
FAR struct kwork_wqueue_s *wq; /* Work queue */
};
work_cancel() should determine whether the current work is in the timer or
has already entered the queue.
This judgment is indispensable because the structure is a union. Whether it
is interpreted as a timer or as a dq needs to be determined.
But this judgment seriously depends on the order of struct wdog_s and struct
dq_entry_s, once someone change the order of any, there is a bug. So we decide
remove the union, to improve the robustness.
## Impact
For the work_s structure size will grow bigger, then we will provide a
another optimization patch
https://github.com/apache/nuttx/pull/16231
## Testing
Ostest in sim:nsh
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