Merge pull request #763 from Iqoqo/add-android-support-for-host

add android support for host

internal/common/common_android.go

@@ -0,0 +1,95 @@
+// +build android
+
+package common
+
+import (
+	"context"
+	"os/exec"
+	"sync/atomic"
+	"bufio"
+
+	"golang.org/x/sys/unix"
+)
+
+func NumProcs() (uint64, error) {
+	ps, err := exec.LookPath("ps")
+	if err != nil {
+		return 0, err
+	}
+	cmd := exec.Command(ps, "-A", "-o", "PID")
+	stdout, err := cmd.StdoutPipe()
+	if err != nil {
+		return 0, err
+	}
+
+	if err := cmd.Start(); err != nil {
+		return 0, err
+	}
+
+	var cnt uint64
+
+	scanner := bufio.NewScanner(stdout)
+	for scanner.Scan() {
+		cnt++
+	}
+
+	if err := scanner.Err(); err != nil {
+		return cnt, err
+	}
+
+	if err := cmd.Wait(); err != nil {
+		return 0, err
+	}
+
+	return cnt, err
+}
+
+// cachedBootTime must be accessed via atomic.Load/StoreUint64
+var cachedBootTime uint64
+
+func BootTimeWithContext(ctx context.Context) (uint64, error) {
+	t := atomic.LoadUint64(&cachedBootTime)
+	if t != 0 {
+		return t, nil
+	}
+
+	sysinfo := &unix.Sysinfo_t{}
+
+	if err := unix.Sysinfo(sysinfo); err != nil {
+		return 0, err
+	}
+
+	uptime := uint64(sysinfo.Uptime)
+	atomic.StoreUint64(&uptime, t)
+	return uptime, nil
+}
+
+func Virtualization() (string, string, error) {
+	return VirtualizationWithContext(context.Background())
+}
+
+func VirtualizationWithContext(ctx context.Context) (string, string, error) {
+	return "", "", nil
+}
+
+func GetOSRelease() (platform string, version string, err error) {
+	getprop, err := exec.LookPath("getprop")
+	if err != nil {
+		return "", "", err
+	}
+	flavorCmd := exec.Command(getprop, "ro.build.flavor")
+	platformProp, err := flavorCmd.Output()
+
+	if err != nil {
+		return "", "", err
+	}
+
+	versionCmd := exec.Command(getprop, "ro.build.version.release")
+	versionProp, err := versionCmd.Output()
+
+	if err != nil {
+		return "", "", err
+	}
+
+	return string(platformProp), string(versionProp), nil
+}

internal/common/common_linux.go

@@ -1,4 +1,4 @@
-// +build linux
+// +build linux,!android
 
 package common