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/* Print information about a task's ports
Copyright (C) 1996,98,99,2002 Free Software Foundation, Inc.
Written by Miles Bader <miles@gnu.org>
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License as
published by the Free Software Foundation; either version 2, or (at
your option) any later version.
This program is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
#include <sys/types.h>
#include <sys/mman.h>
#include "portinfo.h"
/* Prints info about NAME in TASK to STREAM, in a way described by the flags
in SHOW. If TYPE is non-zero, it should be what mach_port_type returns
for NAME. */
error_t
print_port_info (mach_port_t name, mach_port_type_t type, task_t task,
unsigned show, FILE *stream)
{
int hex_names = (show & PORTINFO_HEX_NAMES);
int first = 1;
void comma ()
{
if (first)
first = 0;
else
fprintf (stream, ", ");
}
void prefs (mach_port_right_t right)
{
mach_port_urefs_t refs;
error_t err = mach_port_get_refs (task, name, right, &refs);
if (! err)
fprintf (stream, " (refs: %zu)", refs);
}
if (type == 0)
{
error_t err = mach_port_type (task, name, &type);
if (err)
return err;
}
fprintf (stream, hex_names ? "%#6lx: " : "%6lu: ", name);
if (type & MACH_PORT_TYPE_RECEIVE)
{
comma ();
fprintf (stream, "receive");
if (show & PORTINFO_DETAILS)
{
struct mach_port_status status;
error_t err = mach_port_get_receive_status (task, name, &status);
if (! err)
{
fprintf (stream, " (");
if (status.mps_pset != MACH_PORT_NULL)
fprintf (stream,
hex_names ? "port-set: %#lx, " : "port-set: %lu, ",
status.mps_pset);
fprintf (stream, "seqno: %zu", status.mps_seqno);
if (status.mps_mscount)
fprintf (stream, ", ms-count: %zu", status.mps_mscount);
if (status.mps_qlimit != MACH_PORT_QLIMIT_DEFAULT)
fprintf (stream, ", qlimit: %zu", status.mps_qlimit);
if (status.mps_msgcount)
fprintf (stream, ", msgs: %zu", status.mps_msgcount);
fprintf (stream, "%s%s%s)",
status.mps_srights ? ", send-rights" : "",
status.mps_pdrequest ? ", pd-req" : "",
status.mps_nsrequest ? ", ns-req" : "");
}
}
}
if (type & MACH_PORT_TYPE_SEND)
{
comma ();
fprintf (stream, "send");
if (show & PORTINFO_DETAILS)
prefs (MACH_PORT_RIGHT_SEND);
}
if (type & MACH_PORT_TYPE_SEND_ONCE)
{
comma ();
fprintf (stream, "send-once");
}
if (type & MACH_PORT_TYPE_DEAD_NAME)
{
comma ();
fprintf (stream, "dead-name");
if (show & PORTINFO_DETAILS)
prefs (MACH_PORT_RIGHT_DEAD_NAME);
}
if (type & MACH_PORT_TYPE_PORT_SET)
{
comma ();
fprintf (stream, "port-set");
if (show & PORTINFO_DETAILS)
{
mach_port_t *members = 0;
mach_msg_type_number_t members_len = 0, i;
error_t err =
mach_port_get_set_status (task, name, &members, &members_len);
if (! err)
{
if (members_len == 0)
fprintf (stream, " (empty)");
else
{
fprintf (stream, hex_names ? " (%#lx" : " (%lu", members[0]);
for (i = 1; i < members_len; i++)
fprintf (stream, hex_names ? ", %#lx" : ", %lu",
members[i]);
fprintf (stream, ")");
munmap ((caddr_t) members, members_len * sizeof *members);
}
}
}
}
putc ('\n', stream);
return 0;
}
/* Prints info about every port in TASK that has a type in ONLY to STREAM. */
error_t
print_task_ports_info (task_t task, mach_port_type_t only,
unsigned show, FILE *stream)
{
mach_port_t *names = 0;
mach_port_type_t *types = 0;
mach_msg_type_number_t names_len = 0, types_len = 0, i;
error_t err = mach_port_names (task, &names, &names_len, &types, &types_len);
if (err)
return err;
for (i = 0; i < names_len; i++)
if (types[i] & only)
print_port_info (names[i], types[i], task, show, stream);
munmap ((caddr_t) names, names_len * sizeof *names);
munmap ((caddr_t) types, types_len * sizeof *types);
return 0;
}
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