X-Git-Url: http://git.tuebingen.mpg.de/?p=paraslash.git;a=blobdiff_plain;f=daemon.c;fp=daemon.c;h=478b0f47acc94d3098cc17576599032f007b43ca;hp=94c4a8cba6b9aae8646491f3eeddfff016914c7b;hb=bbd70648da0f4168df34c1f1651d67af089e7be6;hpb=486314426fcd25e5271fd65a982f8b321585e195

diff --git a/daemon.c b/daemon.c
index 94c4a8cb..478b0f47 100644
--- a/daemon.c
+++ b/daemon.c
@@ -11,6 +11,7 @@
 #include <sys/types.h> /* getgrnam() */
 #include <grp.h>
 #include <signal.h>
+#include <sys/resource.h>
 
 #include "para.h"
 #include "daemon.h"
@@ -260,6 +261,21 @@ void daemon_log_welcome(const char *name)
 	PARA_INFO_LOG("welcome to para_%s-" PACKAGE_VERSION " \n", name);
 }
 
+/**
+ * Renice the calling process.
+ *
+ * \param prio The priority value to set.
+ *
+ * Errors are not considered fatal, but a warning message is logged if the
+ * underlying call to setpriority(2) fails.
+ */
+void daemon_set_priority(int prio)
+{
+	if (setpriority(PRIO_PROCESS, 0, prio) < 0)
+		PARA_WARNING_LOG("could not set priority to %d: %s\n", prio,
+			strerror(errno));
+}
+
 /**
  * Give up superuser privileges.
  *