/// <summary>
/// 获取pid
/// </summary>
/// <param name="processName"></param>
/// <returns></returns>
public static int GetProcessPid(string processName)
{
string cmd = "";
if (RuntimeInformation.IsOSPlatform(OSPlatform.Linux))
{
cmd = "ps -aux |grep " + processName + "|grep -v grep|awk \'{print $2}\'";
}
else if (RuntimeInformation.IsOSPlatform(OSPlatform.OSX))
{
cmd = "ps -A |grep " + processName + "|grep -v grep|awk \'{print $1}\'";
}
ProcessShell.Run(cmd, 1000, out string std, out string err);
if (string.IsNullOrEmpty(std) && string.IsNullOrEmpty(err))
{
return(-1);
}
int pid = -1;
if (!string.IsNullOrEmpty(std))
{
int.TryParse(std, out pid);
}
if (!string.IsNullOrEmpty(err))
{
int.TryParse(err, out pid);
}
return(pid);
}
/// <summary>
/// 检查ffmpeg是否存在
/// </summary>
/// <param name="ffpath"></param>
/// <returns></returns>
public static bool CheckFFmpegBin(string ffpath = "")
{
if (string.IsNullOrEmpty(ffpath))
{
ffpath = "ffmpeg";
}
ProcessShell.Run(ffpath, 1000, out string std, out string err);
if (!string.IsNullOrEmpty(std))
{
if (std.ToLower().Contains("ffmpeg version"))
{
return(true);
}
}
if (!string.IsNullOrEmpty(err))
{
if (err.ToLower().Contains("ffmpeg version"))
{
return(true);
}
}
return(false);
}
/// <summary>
/// 获取系统负载率
/// </summary>
/// <returns></returns>
public static LoadAverage GetLoadAverage()
{
try
{
string std = "";
string err = "";
string cmd = "top - bn1 | awk '/average:/ '";
var ret = ProcessShell.Run(cmd, 1000, out std, out err);
if (ret)
{
if (!string.IsNullOrEmpty(std))
{
int pos_start = std.IndexOf("load average:", StringComparison.Ordinal);
if (pos_start > 0)
{
std = std.Substring(pos_start + "load average:".Length).Trim();
}
string[] loadaverageinfo = std.Split(',');
if (loadaverageinfo.Length == 3)
{
var loadAverage = new LoadAverage();
loadAverage.LoadAverageMin1 = float.Parse((loadaverageinfo[0]).Trim());
loadAverage.LoadAverageMin5 = float.Parse((loadaverageinfo[1]).Trim());
loadAverage.LoadAverageMin15 = float.Parse((loadaverageinfo[2]).Trim());
return(loadAverage);
}
}
if (!string.IsNullOrEmpty(err))
{
int pos_start = err.IndexOf("load average:", StringComparison.Ordinal);
if (pos_start > 0)
{
err = err.Substring(pos_start + "load average:".Length).Trim();
}
string[] loadaverageinfo = err.Split(',');
if (loadaverageinfo.Length == 3)
{
var loadAverage = new LoadAverage();
loadAverage.LoadAverageMin1 = float.Parse((loadaverageinfo[0]).Trim());
loadAverage.LoadAverageMin5 = float.Parse((loadaverageinfo[1]).Trim());
loadAverage.LoadAverageMin15 = float.Parse((loadaverageinfo[2]).Trim());
return(loadAverage);
}
}
}
}
catch
{
return(null);
}
return(null);
}
/// <summary>
/// 获取cpu使用率和空闲率
/// </summary>
/// <returns></returns>
public static CPUInfo GetCPUused()
{
try
{
string std = "";
string err = "";
string cmd = "top -bn1 | awk '/%Cpu/ {print $2+$4,$8}'";
var ret = ProcessShell.Run(cmd, 1000, out std, out err);
if (ret)
{
if (!string.IsNullOrEmpty(std))
{
string[] cpuinfo = std.Split(' ');
if (cpuinfo.Length == 2)
{
CPUInfo result = new CPUInfo();
result.CpuIdle = float.Parse(cpuinfo[1]);
result.CpuUsed = float.Parse(cpuinfo[0]);
return(result);
}
}
if (!string.IsNullOrEmpty(err))
{
string[] cpuinfo = err.Split(' ');
if (cpuinfo.Length == 2)
{
CPUInfo result = new CPUInfo();
result.CpuIdle = float.Parse(cpuinfo[1]);
result.CpuUsed = float.Parse(cpuinfo[0]);
return(result);
}
}
}
}
catch
{
return(null);
}
return(null);
}
public static void KillProcess(int pid)
{
string cmd = "kill -9 " + pid.ToString();
ProcessShell.Run(cmd, 1000);
}