[hackers] [slstatus] cpu_freq: Port to OpenBSD || Aaron Marcher

From: <git_AT_suckless.org>
Date: Mon, 30 Apr 2018 13:20:13 +0200 (CEST)

commit 3fe1db88922f9c06ee92ad6b6655ca0788aef93b
Author: Aaron Marcher <me_AT_drkhsh.at>
AuthorDate: Mon Apr 30 13:20:24 2018 +0200
Commit: Aaron Marcher <me_AT_drkhsh.at>
CommitDate: Mon Apr 30 13:20:24 2018 +0200

    cpu_freq: Port to OpenBSD
    
    In OpenBSD CPU frequency gets fetched using sysctl now.

diff --git a/README b/README
index b6f2961..78dc7ab 100644
--- a/README
+++ b/README
_AT_@ -62,7 +62,7 @@ Porting to OpenBSD is the current goal before thinking about a release.
 
 The following functions are not portable at the moment:
 - wifi_{perc,essid}
-- cpu_{freq,perc,iowait}
+- cpu_{perc,iowait}
 - entropy
 - swap_{free,perc,total,used}
 - battery_{power,state}
diff --git a/components/cpu.c b/components/cpu.c
index a001d14..11e2e98 100644
--- a/components/cpu.c
+++ b/components/cpu.c
_AT_@ -1,10 +1,14 @@
 /* See LICENSE file for copyright and license details. */
-#if defined(__linux__)
+#include <errno.h>
 #include <stdio.h>
 #include <string.h>
+#if defined(__OpenBSD__)
+#include <sys/sysctl.h>
+#endif
 
 #include "../util.h"
 
+#if defined(__linux__)
 const char *
 cpu_freq(void)
 {
_AT_@ -62,4 +66,23 @@ cpu_iowait(void)
 
         return bprintf("%d", perc);
 }
+#elif defined(__OpenBSD__)
+const char *
+cpu_freq(void)
+{
+ int freq, mib[2];
+ size_t size;
+
+ mib[0] = CTL_HW;
+ mib[1] = HW_CPUSPEED;
+
+ size = sizeof(freq);
+
+ if (sysctl(mib, 2, &freq, &size, NULL, 0) == -1) {
+ fprintf(stderr, "sysctl 'HW_CPUSPEED': %s\n", strerror(errno));
+ return NULL;
+ }
+
+ return bprintf("%d", freq);
+}
 #endif
Received on Mon Apr 30 2018 - 13:20:13 CEST