+void sig_sendSignal(Signal *s, Process *proc, sigmask_t sig);
+
+/**
+ * Send the signals \a sigs to the process \a proc and immeditaly dispatch it
+ * for execution.
+ *
+ * The process will be awoken if it was waiting for any of them and immediately
+ * dispatched for execution.
+ *
+ * \note This function can't be called from IRQ context, use sig_post()
+ * instead.
+ */
+INLINE void sig_send(Process *proc, sigmask_t sig)
+{
+ sig_sendSignal(&proc->sig, proc, sig);
+}
+
+void sig_postSignal(Signal *s, Process *proc, sigmask_t sig);
+
+/**
+ * Send the signals \a sigs to the process \a proc.
+ * The process will be awoken if it was waiting for any of them.
+ *
+ * \note This call is interrupt safe.
+ */
+INLINE void sig_post(Process *proc, sigmask_t sig)
+{
+ sig_postSignal(&proc->sig, proc, sig);
+}
+
+/*
+ * XXX: this is provided for backword compatibility, consider to make this
+ * deprecated for the future.
+ */
+INLINE void sig_signal(Process *proc, sigmask_t sig)
+{
+ sig_postSignal(&proc->sig, proc, sig);
+}
+
+sigmask_t sig_waitSignal(Signal *s, sigmask_t sigs);
+
+/**
+ * Sleep until any of the signals in \a sigs occurs.
+ *
+ * \return the signal(s) that have awoken the process.
+ */
+INLINE sigmask_t sig_wait(sigmask_t sigs)
+{
+ Process *proc = proc_current();
+ return sig_waitSignal(&proc->sig, sigs);
+}
+
+sigmask_t sig_waitTimeoutSignal(Signal *s, sigmask_t sigs, ticks_t timeout,
+ Hook func, iptr_t data);
+
+/**
+ * Sleep until any of the signals in \a sigs or \a timeout ticks elapse.
+ * If the timeout elapse a SIG_TIMEOUT is added to the received signal(s).
+ * \return the signal(s) that have awoken the process.
+ * \note Caller must check return value to check which signal awoke the process.
+ */
+INLINE sigmask_t sig_waitTimeout(sigmask_t sigs, ticks_t timeout)
+{
+ Process *proc = proc_current();
+ return sig_waitTimeoutSignal(&proc->sig, sigs, timeout,
+ NULL, NULL);
+}
+
+#endif /* CONFIG_KERN_SIGNALS */