From: Matthew Dillon <dillon@apollo.backplane.com>
Date: Mon, 14 Jul 2014 18:16:53 +0000 (-0700)
Subject: powerd - Set to max performance if killed
X-Git-Tag: v4.1.0~425
X-Git-Url: https://gitweb.dragonflybsd.org/~tuxillo/dragonfly.git/commitdiff_plain/323ed6828c242483c92281370db9c63f46ca9de4

powerd - Set to max performance if killed

* If the powerd daemon is killed it now sets the system to maximum
  performance before exiting for consistency, instead of leaving it
  in a potentially low-power state.
---

diff --git a/usr.sbin/powerd/powerd.c b/usr.sbin/powerd/powerd.c
index 43c7948f15..9bb7d76b67 100644
--- a/usr.sbin/powerd/powerd.c
+++ b/usr.sbin/powerd/powerd.c
@@ -64,6 +64,8 @@ int CpuCount[256];	/* # of cpus in any given domain */
 int CpuToDom[256];	/* domain a particular cpu belongs to */
 double Trigger = 0.25;	/* load per cpu to force max freq */
 
+static void sigintr(int signo);
+
 int
 main(int ac, char **av)
 {
@@ -143,6 +145,12 @@ main(int ac, char **av)
 		break;
 	}
 
+	/*
+	 * Set to maximum performance if killed.
+	 */
+	signal(SIGINT, sigintr);
+	signal(SIGTERM, sigintr);
+
 	/*
 	 * Monitoring loop
 	 *
@@ -168,6 +176,15 @@ main(int ac, char **av)
 	}
 }
 
+static
+void
+sigintr(int signo __unused)
+{
+	syslog(LOG_INFO, "killed, setting max and exiting");
+	acpi_setcpufreq(NCpus);
+	exit(1);
+}
+
 /*
  * Figure out the domains and calculate the CpuCount[] and CpuToDom[]
  * arrays.