SystemConfiguration.fproj/SCDPrivate.c

   1 /*
   2  * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_LICENSE_HEADER_START@
   5  *
   6  * The contents of this file constitute Original Code as defined in and
   7  * are subject to the Apple Public Source License Version 1.1 (the
   8  * "License").  You may not use this file except in compliance with the
   9  * License.  Please obtain a copy of the License at
  10  * http://www.apple.com/publicsource and read it before using this file.
  11  *
  12  * This Original Code and all software distributed under the License are
  13  * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  14  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  15  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  16  * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
  17  * License for the specific language governing rights and limitations
  18  * under the License.
  19  *
  20  * @APPLE_LICENSE_HEADER_END@
  21  */
  22
  23 /*
  24  * Modification History
  25  *
  26  * June 1, 2001                 Allan Nathanson <ajn@apple.com>
  27  * - public API conversion
  28  *
  29  * November 9, 2000             Allan Nathanson <ajn@apple.com>
  30  * - initial revision
  31  */
  32
  33 #include <SystemConfiguration/SystemConfiguration.h>
  34 #include <SystemConfiguration/SCPrivate.h>
  35
  36 #include <mach/mach.h>
  37 #include <mach/notify.h>
  38 #include <mach/mach_error.h>
  39 #include <pthread.h>
  40
  41 void
  42 __showMachPortStatus()
  43 {
  44 #ifdef  DEBUG
  45         /* print status of in-use mach ports */
  46         if (_sc_debug) {
  47                 kern_return_t           status;
  48                 mach_port_name_array_t  ports;
  49                 mach_port_type_array_t  types;
  50                 int                     pi, pn, tn;
  51                 CFMutableStringRef      str;
  52
  53                 SCLog(_sc_verbose, LOG_DEBUG, CFSTR("----------"));
  54
  55                 /* report on ALL mach ports associated with this task */
  56                 status = mach_port_names(mach_task_self(), &ports, &pn, &types, &tn);
  57                 if (status == MACH_MSG_SUCCESS) {
  58                         str = CFStringCreateMutable(NULL, 0);
  59                         for (pi=0; pi < pn; pi++) {
  60                                 char    rights[16], *rp = &rights[0];
  61
  62                                 if (types[pi] != MACH_PORT_TYPE_NONE) {
  63                                         *rp++ = ' ';
  64                                         *rp++ = '(';
  65                                         if (types[pi] & MACH_PORT_TYPE_SEND)
  66                                                 *rp++ = 'S';
  67                                         if (types[pi] & MACH_PORT_TYPE_RECEIVE)
  68                                                 *rp++ = 'R';
  69                                         if (types[pi] & MACH_PORT_TYPE_SEND_ONCE)
  70                                                 *rp++ = 'O';
  71                                         if (types[pi] & MACH_PORT_TYPE_PORT_SET)
  72                                                 *rp++ = 'P';
  73                                         if (types[pi] & MACH_PORT_TYPE_DEAD_NAME)
  74                                                 *rp++ = 'D';
  75                                         *rp++ = ')';
  76                                 }
  77                                 *rp = '\0';
  78                                 CFStringAppendFormat(str, NULL, CFSTR(" %d%s"), ports[pi], rights);
  79                         }
  80                         SCLog(_sc_verbose, LOG_DEBUG, CFSTR("Task ports (n=%d):%@"), pn, str);
  81                         CFRelease(str);
  82                 } else {
  83                         /* log (but ignore) errors */
  84                         SCLog(_sc_verbose, LOG_DEBUG, CFSTR("mach_port_names(): %s"), mach_error_string(status));
  85                 }
  86         }
  87 #endif  /* DEBUG */
  88         return;
  89 }
  90
  91
  92 void
  93 __showMachPortReferences(mach_port_t port)
  94 {
  95 #ifdef  DEBUG
  96         kern_return_t           status;
  97         mach_port_urefs_t       refs_send       = 0;
  98         mach_port_urefs_t       refs_recv       = 0;
  99         mach_port_urefs_t       refs_once       = 0;
 100         mach_port_urefs_t       refs_pset       = 0;
 101         mach_port_urefs_t       refs_dead       = 0;
 102
 103         SCLog(_sc_verbose, LOG_DEBUG, CFSTR("user references for mach port %d"), port);
 104
 105         status = mach_port_get_refs(mach_task_self(), port, MACH_PORT_RIGHT_SEND,      &refs_send);
 106         if (status != KERN_SUCCESS) {
 107                 SCLog(_sc_verbose, LOG_DEBUG, CFSTR("  mach_port_get_refs(MACH_PORT_RIGHT_SEND): %s"), mach_error_string(status));
 108                 return;
 109         }
 110
 111         status = mach_port_get_refs(mach_task_self(), port, MACH_PORT_RIGHT_RECEIVE,   &refs_recv);
 112         if (status != KERN_SUCCESS) {
 113                 SCLog(_sc_verbose, LOG_DEBUG, CFSTR("  mach_port_get_refs(MACH_PORT_RIGHT_RECEIVE): %s"), mach_error_string(status));
 114                 return;
 115         }
 116
 117         status = mach_port_get_refs(mach_task_self(), port, MACH_PORT_RIGHT_SEND_ONCE, &refs_once);
 118         if (status != KERN_SUCCESS) {
 119                 SCLog(_sc_verbose, LOG_DEBUG, CFSTR("  mach_port_get_refs(MACH_PORT_RIGHT_SEND_ONCE): %s"), mach_error_string(status));
 120                 return;
 121         }
 122
 123         status = mach_port_get_refs(mach_task_self(), port, MACH_PORT_RIGHT_PORT_SET,  &refs_pset);
 124         if (status != KERN_SUCCESS) {
 125                 SCLog(_sc_verbose, LOG_DEBUG, CFSTR("  mach_port_get_refs(MACH_PORT_RIGHT_PORT_SET): %s"), mach_error_string(status));
 126                 return;
 127         }
 128
 129         status = mach_port_get_refs(mach_task_self(), port, MACH_PORT_RIGHT_DEAD_NAME, &refs_dead);
 130         if (status != KERN_SUCCESS) {
 131                 SCLog(_sc_verbose, LOG_DEBUG, CFSTR("  mach_port_get_refs(MACH_PORT_RIGHT_DEAD_NAME): %s"), mach_error_string(status));
 132                 return;
 133         }
 134
 135         SCLog(_sc_verbose, LOG_DEBUG,
 136                CFSTR("  send = %d, receive = %d, send once = %d, port set = %d, dead name = %d"),
 137                refs_send,
 138                refs_recv,
 139                refs_once,
 140                refs_pset,
 141                refs_dead);
 142
 143 #endif  /* DEBUG */
 144         return;
 145 }