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/*
* $Id: linuxproc.pike,v 1.5 1997/10/16 19:34:49 neotron Exp $
*/
inherit "wizard";
constant name= "Status//Extended process status";
constant doc = "Shows detailed process status and process tree on Linux machines.";
constant more=1;
void create()
{
if(!file_stat("/usr/bin/pstree")) {
throw("You need /usr/bin/pstree to be installed\n");
}
if(!file_stat("/proc/1/status")) {
throw("You need a kernel with the proc filesystem mounted.\n");
}
}
string format_env_line(string in, int ipid)
{
if(!strlen(in))
return "";
array line = in / "=";
if(sizeof(line) < 2)
return "";
return sprintf(" <tr>\n <th align=left>%s</th>\n <td>%s</td>\n </tr>\n",
line[0], line[1..]*"=");
}
string format_proc_line(string in, int ipid)
{
string pre;
int end, begin;
int pid;
sscanf(in, "%*s(%d)%*s", pid);
in = replace(in, ({"|-", "`-"}), ({"+-", "+-"}));
if(in[0] == ' ')
begin = search(in, "+-") + 2;
if((end = search(in, ") ")) == -1 &&(end = search(in, ")")) == -1)
end = strlen(in) -1;
// perror("%d %d %s\n", begin, end, in[begin..end]);
if(search(in,"/proc/")==-1)
return ((begin ? html_encode_string(in[0..begin-1]) :"")+
"<a href=/Actions/?action=linuxproc.pike&pid="+pid+"&unique="+time()+">"+
(ipid==pid?"<b>":"")+
html_encode_string(in[begin..end])+
(ipid==pid?"</b>":"")+"</a>"+ html_encode_string(in[end+1..])+
"\n");
return "";
}
string get_status(int pid)
{
string wd = getcwd();
string cwd, status, state = "unknown", name = "who knows";
int vmsize, vmrss, vmdata, vmstack, vmexe, vmlib, vmstk, vmlck, ppid;
array (string) uid, gid, tmp;
// cd("/proc/"+pid+"/cwd/");
// cwd = getcwd();
// cd(wd);
status = Stdio.read_file("/proc/"+pid+"/status");
if(!status || !strlen(status))
return "<i>Failed to read /proc/. Process died?</i>";
foreach(status / "\n", string line)
{
tmp = line / ":";
if(sizeof(tmp) != 2)
continue;
string unmod = tmp[1];
tmp[1] -= " ";
tmp[1] -= "\t";
switch(lower_case(tmp[0]))
{
case "name":
name = tmp[1];
break;
case "state":
sscanf(tmp[1], "%*s(%s)", state);
break;
case "ppid":
ppid = (int)tmp[1];
break;
case "vmrss":
vmrss = (int)tmp[1];
break;
case "vmdata":
vmdata = (int)tmp[1];
break;
case "vmstk":
vmstk = (int)tmp[1];
break;
case "vmexe":
vmexe = (int)tmp[1];
break;
case "vmlck":
vmlck = (int)tmp[1];
break;
case "vmlib":
vmlib = (int)tmp[1];
break;
case "vmsize":
vmsize = (int)tmp[1];
break;
case "uid":
uid = unmod / "\t" - ({""});
#if efun(getpwuid)
for(int i = 0; i < sizeof(uid); i++)
catch {
uid[i] = getpwuid((int)uid[i])[0];
};
#endif
break;
case "gid":
gid = unmod / "\t" - ({""});
#if efun(getgrgid)
for(int i = 0; i < sizeof(gid); i++)
catch {
gid[i] = getgrgid((int)gid[i])[0];
};
#endif
break;
}
}
string ppids = "", fds;
while(ppid != 0)
{
if(strlen(ppids))
ppids += " => ";
ppids += sprintf("<a href=/Actions/?action=linuxproc.pike&pid=%d&"
"unique=%d>%d</a>", ppid, time(), ppid);
status = Stdio.read_file("/proc/"+ppid+"/status");
if(!stringp(status) || !strlen(status))
{
ppids += " => [ failed, process died? ]";
break;
}
sscanf(status, "%*sPPid:\t%d\n%*s", ppid);
}
if(!strlen(ppids))
ppids = "None";
if((tmp = get_dir("/proc/"+pid+"/fd/")) && sizeof(tmp))
fds = sprintf("<b># open fd's:</b> %d\n", sizeof(tmp));
string out = sprintf("<b>Process name:</b> %s\n"
"<b>Process state:</b> %s\n"
"<b>Parent pid(s):</b> %s\n"
"%s" // fds
// "<b>CWD:</b> %s\n\n"
"<b>Memory usage</b>:\n\n"
" Size (incl. mmap): %6d kB"
" RSS: %6d kB\n"
" Data: %6d kB"
" Stack: %6d kB\n"
" Locked: %6d kB"
" Executable: %6d kB\n"
" Libraries: %6d kB\n\n"
"<b>User and group information:</b>\n\n"
" <b> %8s %12s</b>\n"
" <b>uid</b> %8s %12s\n"
" <b>gid</b> %8s %12s\n\n"
"<b><a href=/Actions/?action=linuxproc.pike&pid=%d&"
"unique=%d&environ=1>Click here for process "
"environment</a>\n",
name, state,
ppids, fds,
// cwd,
vmsize,
vmrss, vmdata, vmstk, vmlck,
vmexe, vmlib,
"real", "effective",
uid[0], uid[1],
gid[0], gid[1],
pid, time());
status = Stdio.read_file("/proc/"+pid+"/stat");
if(!stringp(status) || !strlen(status))
return out;
array stat = status / " ";
out += sprintf("\n"
"<b>Page Faults (non I/O) :</b> %s\n"
"<b>Page Faults (I/O) :</b> %s\n",
stat[9], stat[11]);
return out;
}
mixed page_0(object id, object mc)
{
object p = ((program)"privs")("Process status");
int pid = (int)id->variables->pid || roxen->roxenpid || roxen->startpid;
if(id->variables->environ) {
string environ =
Array.map(sort((Stdio.read_file("/proc/"+pid+"/environ") || "") / "\0"),
format_env_line, pid)*"";
if(strlen(environ))
environ = sprintf("<table width=100%% cellspacing=0 cellpadding=1>\n <tr align=left>\n <th>Variable</th>\n "
"<th>Value</th>\n </tr>\n%s"
"</table>", environ);
return ("<h2>Process environment for "+pid+"</h2><h3>Cmdline: "+
replace(Stdio.read_file("/proc/"+pid+"/cmdline") || "???",
"\0", " ") +"</h3>" +
environ);
}
string tree = Array.map(popen("/usr/bin/pstree -pa "+pid)/"\n" - ({""}),
format_proc_line, pid)*"";
return ("<h2>Process Tree for "+pid+"</h2><pre>\n"+
tree+"</pre>"+
(roxen->euid_egid_lock ?
"<p><i>Please note that when using threads on Linux, each "
"thread is more or less<br> a separate process, with the exception "
"that they share all their memory.</b>" : "")+
"<h3>Misc status for "+pid
+"</h3><pre>"+get_status(pid)+"</pre>");
}
mixed handle(object id) { return wizard_for(id,0); }
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