From be9be179a2cde041fbe042362ee80f9874233953 Mon Sep 17 00:00:00 2001 From: antrik Date: Sat, 20 Jun 2009 12:29:06 +0200 Subject: Obtain number of ports in proc and libps Add (and implement) a proc RPC to obtain the number of Mach ports used by the target task. Add infrastructure in libps to read this information. * hurd/process.defs (proc_getnports): New RPC. * hurd/process_request.defs (proc_getnports_request): New RPC. * libps/procstat.c (proc_stat_set_flags): Call proc_getnports RPC if needed. * libps/ps.h (proc_stat): New `num_ports' field. (PSTAT_NUM_PORTS): New macro. (proc_stat_num_ports): New macro. * libps/spec.c (ps_get_num_ports): New function. (ps_num_ports_getter): New variable. (specs): New entry for `ps_num_ports_getter'. * proc/info.c (S_proc_getnports): New function. --- proc/info.c | 32 ++++++++++++++++++++++++++++++++ 1 file changed, 32 insertions(+) (limited to 'proc/info.c') diff --git a/proc/info.c b/proc/info.c index 18cb69fc..445fcd8b 100644 --- a/proc/info.c +++ b/proc/info.c @@ -765,3 +765,35 @@ S_proc_get_tty (struct proc *p, pid_t pid, { return EOPNOTSUPP; /* XXX */ } + +/* Implement proc_getnports as described in . */ +kern_return_t +S_proc_getnports (struct proc *callerp, + pid_t pid, + mach_msg_type_number_t *nports) +{ + struct proc *p = pid_find (pid); + mach_port_array_t names; + mach_msg_type_number_t ncount; + mach_port_type_array_t types; + mach_msg_type_number_t tcount; + error_t err = 0; + + /* No need to check CALLERP here; we don't use it. */ + + if (!p) + return ESRCH; + + err = mach_port_names (p->p_task, &names, &ncount, &types, &tcount); + if (err == KERN_INVALID_TASK) + err = ESRCH; + + if (!err) { + *nports = ncount; + + munmap (names, ncount * sizeof (mach_port_t)); + munmap (types, tcount * sizeof (mach_port_type_t)); + } + + return err; +} -- cgit v1.2.3