1 /*
2 * Copyright 1999-2006 University of Chicago
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17 #include "globus_i_wsrf_service_group.h"
18 #include "wssg_Content.h"
19
20 /**
21 * Get a list of entries associated with a service group
22 * @ingroup wssg
23 * Returns a list of the entries associated with the service group named
24 * by @a service_group_epr in the array pointed to by @a entries.
25 *
26 * @param service_group_epr
27 * EPR containing a reference to the service group.
28 * @param entries
29 * List of entries which will be populated with the current list
30 * of entries and their values.
31 *
32 * @retval GLOBUS_SUCCESS
33 * @retval #GLOBUS_SERVICE_GROUP_ERROR_TYPE_NULL_PARAMETER
34 * @retval #GLOBUS_SERVICE_GROUP_ERROR_TYPE_OUT_OF_MEMORY
35 * @retval #GLOBUS_SERVICE_GROUP_ERROR_TYPE_UNKNOWN
36 */
37 globus_result_t
38 globus_service_group_get_entries(
39 const wsa_EndpointReferenceType * service_group_epr,
40 wssg_EntryType_array * entries)
41 24 {
42 globus_wsrf_service_group_t sg;
43 globus_wsrf_service_group_entry_t sge;
44 globus_result_t result;
45 wssg_EntryType * tmp;
46 globus_resource_t resource;
47 24 wssg_ContentType * tmp_content = NULL;
48 int i;
49 GlobusFuncName(globus_service_group_get_entries);
50
51 24 GlobusServiceGroupDebugEnter();
52 24 if (service_group_epr == NULL || entries == NULL)
53 {
54 6 result = GLOBUS_SERVICE_GROUP_NULL_PARAMETER();
55
56 6 goto out;
57 }
58 18 result = wssg_EntryType_array_init_contents(entries);
59 18 if (result != GLOBUS_SUCCESS)
60 {
61 0 result = GLOBUS_SERVICE_GROUP_OUT_OF_MEMORY();
62
63 0 goto out;
64 }
65
66 18 result = globus_i_service_group_lookup(
67 service_group_epr,
68 &sg);
69
70 18 if (result != GLOBUS_SUCCESS)
71 {
72 3 goto destroy_entries_out;
73 }
74
75 15 sge = globus_hashtable_first(
76 &sg->entries);
77
78 /* Extract a list of Entry structs from the hashtable owned by
79 * the service group. The entry resources must be accessed and released
80 * outside of the SG lock.
81 */
82 60 while (sge != NULL)
83 {
84 30 tmp = wssg_EntryType_array_push(entries);
85 30 if (tmp == NULL)
86 {
87 0 result = GLOBUS_SERVICE_GROUP_OUT_OF_MEMORY();
88
89 0 goto unlock_out;
90 }
91
92 30 result = wssg_EntryType_copy_contents(
93 tmp,
94 sge->entry);
95
96 30 if (result != GLOBUS_SUCCESS)
97 {
98 0 result = GLOBUS_SERVICE_GROUP_OUT_OF_MEMORY();
99
100 0 goto unlock_out;
101 }
102 30 sge = globus_hashtable_next(&sg->entries);
103 }
104 15 GlobusServiceGroupUnlock(sg);
105
106 45 for (i = 0; i < entries->length; i++)
107 {
108 /* The only copy of the content is in the entry's resource property,
109 * so we extract that into the array value
110 */
111 30 result = globus_wsrf_core_get_resource_from_epr(
112 entries->elements[i].ServiceGroupEntryEPR,
113 &resource);
114
115 30 if (result != GLOBUS_SUCCESS &&
116 globus_error_match(
117 globus_error_peek(result),
118 GLOBUS_WSRF_RESOURCE_MODULE,
119 GLOBUS_WSRF_RESOURCE_ERROR_TYPE_UNKNOWN_RESOURCE))
120 {
121 /* This entry was destroyed while we were accessing the list. */
122 0 memmove(&entries->elements[i],
123 &entries->elements[i+1],
124 sizeof(wssg_EntryType) * (entries->length - i));
125
126 /* Retry with the next from the list */
127 0 entries->length--;
128 0 i--;
129
130 0 continue;
131 }
132 30 else if (result != GLOBUS_SUCCESS)
133 {
134 /* Something baadd */
135 0 result = GLOBUS_SERVICE_GROUP_OUT_OF_MEMORY();
136
137 0 goto destroy_entries_out;
138 }
139
140 30 result = globus_resource_get_property(
141 resource,
142 &wssg_Content_qname,
143 (void **) &tmp_content,
144 NULL);
145 30 if (result != GLOBUS_SUCCESS)
146 {
147 0 result = GLOBUS_SERVICE_GROUP_UNKNOWN();
148
149 0 globus_resource_finish(resource);
150
151 0 goto destroy_entries_out;
152 }
153
154 30 result = wssg_ContentType_copy(
155 &entries->elements[i].Content,
156 tmp_content);
157 30 if (result != GLOBUS_SUCCESS)
158 {
159 0 result = GLOBUS_SERVICE_GROUP_OUT_OF_MEMORY();
160
161 0 globus_resource_finish(resource);
162
163 0 goto destroy_entries_out;
164 }
165
166 30 globus_resource_finish(resource);
167 }
168
169 15 if (result != GLOBUS_SUCCESS)
170 {
171 0 unlock_out:
172 0 GlobusServiceGroupUnlock(sg);
173 3 destroy_entries_out:
174 3 wssg_EntryType_array_destroy_contents(entries);
175 }
176
177 24 out:
178 24 GlobusServiceGroupDebugExit();
179 24 return result;
180 }