6a9e860e4e
When determining whether a SC donated from the notification should be returned, we must ensure not to try and return a NULL SC to a notification with not bound SC. This could occur when a passive server performs a NBSendWait/NBSendRecv with a notification in the receive phase, where the SC for the receiver was returned in the send phase and the notification has no bound SC. Signed-off-by: Curtis Millar <curtis.millar@data61.csiro.au>
39 lines
1.2 KiB
C
39 lines
1.2 KiB
C
/*
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* Copyright 2014, General Dynamics C4 Systems
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*
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* SPDX-License-Identifier: GPL-2.0-only
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*/
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#pragma once
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#include <types.h>
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#include <object/structures.h>
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void sendSignal(notification_t *ntfnPtr, word_t badge);
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void receiveSignal(tcb_t *thread, cap_t cap, bool_t isBlocking);
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void cancelAllSignals(notification_t *ntfnPtr);
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void cancelSignal(tcb_t *threadPtr, notification_t *ntfnPtr);
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void completeSignal(notification_t *ntfnPtr, tcb_t *tcb);
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void unbindMaybeNotification(notification_t *ntfnPtr);
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void unbindNotification(tcb_t *tcb);
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void bindNotification(tcb_t *tcb, notification_t *ntfnPtr);
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#ifdef CONFIG_KERNEL_MCS
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void reorderNTFN(notification_t *notification, tcb_t *thread);
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static inline void maybeReturnSchedContext(notification_t *ntfnPtr, tcb_t *tcb)
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{
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sched_context_t *sc = SC_PTR(notification_ptr_get_ntfnSchedContext(ntfnPtr));
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if (sc != NULL && sc == tcb->tcbSchedContext) {
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tcb->tcbSchedContext = NULL;
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sc->scTcb = NULL;
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/* If the current thread returns its sched context then it should not
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by default continue running. */
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if (tcb == NODE_STATE(ksCurThread)) {
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rescheduleRequired();
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}
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}
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}
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#endif
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