1 | /* |
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2 | * Object Handler |
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3 | * |
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4 | * |
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5 | * COPYRIGHT (c) 1989-1998. |
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6 | * On-Line Applications Research Corporation (OAR). |
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7 | * Copyright assigned to U.S. Government, 1994. |
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8 | * |
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9 | * The license and distribution terms for this file may be |
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10 | * found in the file LICENSE in this distribution or at |
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11 | * http://www.OARcorp.com/rtems/license.html. |
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12 | * |
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13 | * $Id$ |
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14 | */ |
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15 | |
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16 | #include <rtems/system.h> |
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17 | #include <rtems/score/address.h> |
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18 | #include <rtems/score/chain.h> |
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19 | #include <rtems/score/object.h> |
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20 | #if defined(RTEMS_MULTIPROCESSING) |
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21 | #include <rtems/score/objectmp.h> |
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22 | #endif |
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23 | #include <rtems/score/thread.h> |
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24 | #include <rtems/score/wkspace.h> |
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25 | #include <rtems/score/sysstate.h> |
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26 | #include <rtems/score/isr.h> |
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27 | |
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28 | /*PAGE |
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29 | * |
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30 | * _Objects_Name_to_id |
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31 | * |
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32 | * These kernel routines search the object table(s) for the given |
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33 | * object name and returns the associated object id. |
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34 | * |
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35 | * Input parameters: |
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36 | * information - object information |
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37 | * name - user defined object name |
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38 | * node - node indentifier (0 indicates any node) |
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39 | * id - address of return ID |
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40 | * |
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41 | * Output parameters: |
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42 | * id - object id |
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43 | * OBJECTS_SUCCESSFUL - if successful |
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44 | * error code - if unsuccessful |
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45 | */ |
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46 | |
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47 | Objects_Name_to_id_errors _Objects_Name_to_id( |
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48 | Objects_Information *information, |
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49 | Objects_Name name, |
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50 | unsigned32 node, |
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51 | Objects_Id *id |
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52 | ) |
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53 | { |
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54 | boolean search_local_node; |
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55 | Objects_Control *the_object; |
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56 | unsigned32 index; |
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57 | unsigned32 name_length; |
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58 | Objects_Name_comparators compare_them; |
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59 | |
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60 | if ( name == 0 ) |
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61 | return OBJECTS_INVALID_NAME; |
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62 | |
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63 | search_local_node = FALSE; |
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64 | |
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65 | if ( information->maximum != 0 && |
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66 | (node == OBJECTS_SEARCH_ALL_NODES || node == OBJECTS_SEARCH_LOCAL_NODE || |
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67 | _Objects_Is_local_node( node ) ) ) |
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68 | search_local_node = TRUE; |
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69 | |
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70 | if ( search_local_node ) { |
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71 | name_length = information->name_length; |
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72 | |
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73 | if ( information->is_string ) compare_them = _Objects_Compare_name_string; |
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74 | else compare_them = _Objects_Compare_name_raw; |
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75 | |
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76 | for ( index = 1; index <= information->maximum; index++ ) { |
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77 | |
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78 | the_object = information->local_table[ index ]; |
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79 | |
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80 | if ( !the_object || !the_object->name ) |
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81 | continue; |
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82 | |
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83 | if ( (*compare_them)( name, the_object->name, name_length ) ) { |
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84 | *id = the_object->id; |
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85 | return OBJECTS_SUCCESSFUL; |
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86 | } |
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87 | } |
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88 | } |
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89 | |
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90 | if ( _Objects_Is_local_node( node ) || node == OBJECTS_SEARCH_LOCAL_NODE ) |
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91 | return OBJECTS_INVALID_NAME; |
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92 | |
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93 | #if defined(RTEMS_MULTIPROCESSING) |
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94 | return ( _Objects_MP_Global_name_search( information, name, node, id ) ); |
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95 | #else |
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96 | return OBJECTS_INVALID_NAME; |
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97 | #endif |
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98 | } |
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