xiaoxiang781216 commented on a change in pull request #1663:
URL: https://github.com/apache/incubator-nuttx/pull/1663#discussion_r479759482
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File path: arch/sim/src/sim/up_hostirq.c
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@@ -86,3 +112,44 @@ void up_irq_restore(uint64_t flags)
void up_irqinitialize(void)
{
}
+
+/****************************************************************************
+ * Name: up_enable_irq
+ *
+ * Description:
+ * Enable the IRQ specified by 'irq'
+ *
+ ****************************************************************************/
+
+void up_enable_irq(int irq)
+{
+ struct sigaction act;
+ sigset_t set;
+
+ /* Register signal handler */
+
+ memset(&act, 0, sizeof(act));
+ act.sa_sigaction = up_handle_irq;
+ act.sa_flags = SA_SIGINFO;
+ sigfillset(&act.sa_mask);
+ sigaction(irq, &act, NULL);
+
+ /* Unmask the signal */
+
+ sigemptyset(&set);
+ sigaddset(&set, irq);
+ pthread_sigmask(SIG_UNBLOCK, &set, NULL);
+}
+
+/****************************************************************************
+ * Name: up_disable_irq
+ *
+ * Description:
+ * Disable the IRQ specified by 'irq'
+ *
+ ****************************************************************************/
+
+void up_disable_irq(int irq)
+{
+ signal(irq, SIG_IGN);
Review comment:
pthread_sigmask can only block the current thread, it's hard to block
all threads directly with signal API. That's why I simply change the signal
handle to ignore. BTW, up_disable_irq just make the linker happy, nobody really
call it.
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