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path: root/pkg/sysinfo/sysinfo_solaris.go
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Diffstat (limited to 'pkg/sysinfo/sysinfo_solaris.go')
-rw-r--r--pkg/sysinfo/sysinfo_solaris.go121
1 files changed, 121 insertions, 0 deletions
diff --git a/pkg/sysinfo/sysinfo_solaris.go b/pkg/sysinfo/sysinfo_solaris.go
new file mode 100644
index 000000000..c858d57e0
--- /dev/null
+++ b/pkg/sysinfo/sysinfo_solaris.go
@@ -0,0 +1,121 @@
+// +build solaris,cgo
+
+package sysinfo
+
+import (
+ "bytes"
+ "os/exec"
+ "strconv"
+ "strings"
+)
+
+/*
+#cgo LDFLAGS: -llgrp
+#include <unistd.h>
+#include <stdlib.h>
+#include <sys/lgrp_user.h>
+int getLgrpCount() {
+ lgrp_cookie_t lgrpcookie = LGRP_COOKIE_NONE;
+ uint_t nlgrps;
+
+ if ((lgrpcookie = lgrp_init(LGRP_VIEW_OS)) == LGRP_COOKIE_NONE) {
+ return -1;
+ }
+ nlgrps = lgrp_nlgrps(lgrpcookie);
+ return nlgrps;
+}
+*/
+import "C"
+
+// IsCPUSharesAvailable returns whether CPUShares setting is supported.
+// We need FSS to be set as default scheduling class to support CPU Shares
+func IsCPUSharesAvailable() bool {
+ cmd := exec.Command("/usr/sbin/dispadmin", "-d")
+ outBuf := new(bytes.Buffer)
+ errBuf := new(bytes.Buffer)
+ cmd.Stderr = errBuf
+ cmd.Stdout = outBuf
+
+ if err := cmd.Run(); err != nil {
+ return false
+ }
+ return (strings.Contains(outBuf.String(), "FSS"))
+}
+
+// New returns a new SysInfo, using the filesystem to detect which features
+// the kernel supports.
+//NOTE Solaris: If we change the below capabilities be sure
+// to update verifyPlatformContainerSettings() in daemon_solaris.go
+func New(quiet bool) *SysInfo {
+ sysInfo := &SysInfo{}
+ sysInfo.cgroupMemInfo = setCgroupMem(quiet)
+ sysInfo.cgroupCPUInfo = setCgroupCPU(quiet)
+ sysInfo.cgroupBlkioInfo = setCgroupBlkioInfo(quiet)
+ sysInfo.cgroupCpusetInfo = setCgroupCPUsetInfo(quiet)
+
+ sysInfo.IPv4ForwardingDisabled = false
+
+ sysInfo.AppArmor = false
+
+ return sysInfo
+}
+
+// setCgroupMem reads the memory information for Solaris.
+func setCgroupMem(quiet bool) cgroupMemInfo {
+
+ return cgroupMemInfo{
+ MemoryLimit: true,
+ SwapLimit: true,
+ MemoryReservation: false,
+ OomKillDisable: false,
+ MemorySwappiness: false,
+ KernelMemory: false,
+ }
+}
+
+// setCgroupCPU reads the cpu information for Solaris.
+func setCgroupCPU(quiet bool) cgroupCPUInfo {
+
+ return cgroupCPUInfo{
+ CPUShares: true,
+ CPUCfsPeriod: false,
+ CPUCfsQuota: true,
+ CPURealtimePeriod: false,
+ CPURealtimeRuntime: false,
+ }
+}
+
+// blkio switches are not supported in Solaris.
+func setCgroupBlkioInfo(quiet bool) cgroupBlkioInfo {
+
+ return cgroupBlkioInfo{
+ BlkioWeight: false,
+ BlkioWeightDevice: false,
+ }
+}
+
+// setCgroupCPUsetInfo reads the cpuset information for Solaris.
+func setCgroupCPUsetInfo(quiet bool) cgroupCpusetInfo {
+
+ return cgroupCpusetInfo{
+ Cpuset: true,
+ Cpus: getCPUCount(),
+ Mems: getLgrpCount(),
+ }
+}
+
+func getCPUCount() string {
+ ncpus := C.sysconf(C._SC_NPROCESSORS_ONLN)
+ if ncpus <= 0 {
+ return ""
+ }
+ return strconv.FormatInt(int64(ncpus), 16)
+}
+
+func getLgrpCount() string {
+ nlgrps := C.getLgrpCount()
+ if nlgrps <= 0 {
+ return ""
+ }
+ return strconv.FormatInt(int64(nlgrps), 16)
+}