RPSTATE(2) LAM REMOTE LIBRARY RPSTATE(2)NAMErpstate - Report status of LAM processes on a remote node.
SYNOPSIS
#include <preq.h>
int rpstate(int node, int sflags, int svalue, struct pstate *stat_tab,
int maxsize);
ARGUMENTS
node target node where selected processes are running
sflags selection method
svalue selection matching value, if required, otherwise ignored
stat_tab array of remote process status structures (output)
maxsize size of stat_tab array
DESCRIPTION
Selection Methods
Processes to be reported from the target node are selected by one of
several methods, chosen in the sflags argument. The selection method
codes are defined in <preq.h>.
SELECT_PID Select by process ID. The svalue argument contains
the process ID.
SELECT_INDEX Select by process table index. The svalue argument
contains the index.
SELECT_APPL Select all application (user) processes.
SELECT_SYS Select all system processes.
SELECT_ALL Select all application and all system processes.
Remote Process Status
The status structure array, stat_tab, is filled with information on the
selected processes. The structure is defined in <preq.h>.
struct pstate {
int ps_reply;
int ps_index;
int ps_pid;
int ps_rtf;
int ps_nodeid;
int ps_event;
struct kstatus ps_kernel;
char ps_name[PSMAXNAME];
char ps_loadpt[PSMAXNAME];
};
ps_reply internal use by rpstate()
ps_index index within target node
ps_pid identifier within target node
ps_rtf runtime flags, see rploadgo(2)
ps_nodeid parent's node identifier
ps_event parent's event for reporting process's exit
ps_kernel kernel status, see kstate(2)
ps_name argv[0], usually the program name, see kenter(2)
ps_loadpt load module filename
RETURN VALUE
Upon successful completion, the number of selected processes is
returned. This could be more or less than maxsize. If an error
occurred, -1 is returned and the global variable errno is set to indi‐
cate the error.
SEE ALSOkstate(2), rploadgo(2)LAM 7.1.2 March, 2006 RPSTATE(2)
