libmisc/shell/main_lsof.c

0001 /*
0002  * Copyright (C) 2012, 2014 embedded brains GmbH & Co. KG
0003  *
0004  * The license and distribution terms for this file may be
0005  * found in the file LICENSE in this distribution or at
0006  * http://www.rtems.org/license/LICENSE.
0007  */
0008
0009 #ifdef HAVE_CONFIG_H
0010 #include "config.h"
0011 #endif
0012
0013 #include <stdio.h>
0014 #include <inttypes.h>
0015
0016 #include <rtems/libio_.h>
0017 #include <rtems/shell.h>
0018 #include <rtems/shellconfig.h>
0019
0020 static void print_location( const rtems_filesystem_location_info_t *loc )
0021 {
0022   fprintf(
0023     stdout,
0024     "\tloc = 0x%08" PRIxPTR "\n\t\tnode_access = 0x%08" PRIxPTR
0025       ", node_access_2 = 0x%08" PRIxPTR ", handler = 0x%08" PRIxPTR "\n",
0026     (uintptr_t) loc,
0027     (uintptr_t) loc->node_access,
0028     (uintptr_t) loc->node_access_2,
0029     (uintptr_t) loc->handlers
0030   );
0031 }
0032
0033 static void print_mt_entry_locations(
0034   const rtems_filesystem_mount_table_entry_t *mt_entry
0035 )
0036 {
0037   const rtems_chain_control *mt_entry_chain = &mt_entry->location_chain;
0038   const rtems_chain_node *mt_entry_node;
0039
0040   for (
0041     mt_entry_node = rtems_chain_immutable_first( mt_entry_chain );
0042     !rtems_chain_is_tail( mt_entry_chain, mt_entry_node );
0043     mt_entry_node = rtems_chain_immutable_next( mt_entry_node )
0044   ) {
0045     const rtems_filesystem_location_info_t *loc =
0046       (const rtems_filesystem_location_info_t *) mt_entry_node;
0047
0048     print_location( loc );
0049   }
0050 }
0051
0052 static void lsof(void)
0053 {
0054   const rtems_chain_control *mt_chain = &rtems_filesystem_mount_table;
0055   const rtems_chain_node *mt_node;
0056
0057   fprintf(
0058     stdout,
0059     "type = null, root loc = 0x%08" PRIxPTR "\n",
0060     (uintptr_t) rtems_filesystem_null_mt_entry.mt_fs_root
0061   );
0062
0063   print_mt_entry_locations( &rtems_filesystem_null_mt_entry );
0064
0065   for (
0066     mt_node = rtems_chain_immutable_first( mt_chain );
0067     !rtems_chain_is_tail( mt_chain, mt_node );
0068     mt_node = rtems_chain_immutable_next( mt_node )
0069   ) {
0070     rtems_filesystem_mount_table_entry_t *mt_entry =
0071       (rtems_filesystem_mount_table_entry_t *) mt_node;
0072
0073     fprintf(
0074       stdout,
0075       "type = %s, %s, %s, target = %s, dev = %s, root loc = 0x%08" PRIxPTR "\n",
0076       mt_entry->type,
0077       mt_entry->mounted ? "mounted" : "unmounted",
0078       mt_entry->writeable ? "read-write" : "read-only",
0079       mt_entry->target,
0080       mt_entry->dev == NULL ? "NULL" : mt_entry->dev,
0081       (uintptr_t) mt_entry->mt_fs_root
0082     );
0083
0084     print_mt_entry_locations( mt_entry );
0085   }
0086 }
0087
0088 static int rtems_shell_main_lsof(int argc, char **argv)
0089 {
0090   lsof();
0091
0092   return 0;
0093 }
0094
0095 rtems_shell_cmd_t rtems_shell_LSOF_Command = {
0096   .name = "lsof",
0097   .usage = "lsof",
0098   .topic = "files",
0099   .command = rtems_shell_main_lsof
0100 };