nshlib/nsh_proccmds.c: fix description for TID and switch order

ID previously marked as PID was in fact TID. PID was hidden under
GROUP column. This fixes the description. The order of TID, PPID, PID
is also changed to more logical TID, PID, PPID.

Signed-off-by: Michal Lenc <michallenc@seznam.cz>

Author: michallenc

nshlib/nsh_proccmds.c

@@ -100,7 +100,7 @@ struct nsh_taskstatus_s
   FAR const char *td_sigmask;      /* Signal mask */
 #endif
   FAR char       *td_cmdline;      /* Command line */
-  int             td_pid;          /* Task ID */
+  int             td_tid;          /* Task ID */
   int             td_ppid;         /* Parent task ID */
 #ifdef NSH_HAVE_CPULOAD
   FAR const char *td_cpuload;      /* CPU load */
@@ -379,7 +379,7 @@ static int ps_record(FAR struct nsh_vtbl_s *vtbl, FAR const char *dirpath,
   status->td_sigmask = "";
 #endif
   status->td_cmdline = "";
-  status->td_pid = atoi(entryp->d_name);
+  status->td_tid = atoi(entryp->d_name);
   status->td_ppid = INVALID_PROCESS_ID;
 #ifdef NSH_HAVE_CPULOAD
   status->td_cpuload = "";
@@ -633,7 +633,7 @@ static void ps_title(FAR struct nsh_vtbl_s *vtbl, bool heap)
               "%6s "
 #endif
               "%s\n"
-              , "PID", "PPID", "GROUP"
+              , "TID", "PID", "PPID"
 #ifdef CONFIG_SMP
               , "CPU"
 #endif
@@ -679,7 +679,7 @@ static void ps_output(FAR struct nsh_vtbl_s *vtbl, bool heap,
 #endif
 
   nsh_output(vtbl,
-             "%5d %5d %5s "
+             "%5d %5s %5d "
 #ifdef CONFIG_SMP
              "%3s "
 #endif
@@ -700,7 +700,7 @@ static void ps_output(FAR struct nsh_vtbl_s *vtbl, bool heap,
              "%5s "
 #endif
              "%s\n"
-           , status->td_pid, status->td_ppid, status->td_groupid
+           , status->td_tid, status->td_groupid, status->td_ppid
 #ifdef CONFIG_SMP
            , status->td_cpu
 #endif