2 * Copyright (c) 2016 Samsung Electronics Co., Ltd. All rights reserved.
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
8 * http://www.apache.org/licenses/LICENSE-2.0
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.
18 #define _XOPEN_SOURCE 500
26 #include <sys/types.h>
30 #include "pkgmgr-server.h"
33 #define BACKEND_DIR "/etc/package-manager/backend"
36 struct backend_queue {
43 static GHashTable *queue_type_table;
44 static GHashTable *queue_slot_table;
48 int _is_queue_empty(int pos)
50 struct backend_queue *queue;
52 queue = (struct backend_queue *)g_hash_table_lookup(queue_slot_table,
55 ERR("cannot find queue of slot %d", pos);
59 if (queue->job_list == NULL)
65 struct backend_job *_pop_queue(int pos)
67 struct backend_queue *queue;
68 struct backend_job *job;
71 queue = (struct backend_queue *)g_hash_table_lookup(queue_slot_table,
74 ERR("cannot find queue of slot %d", pos);
78 tmp = g_list_first(queue->job_list);
81 job = (struct backend_job *)tmp->data;
82 queue->job_list = g_list_delete_link(queue->job_list, tmp);
87 int _push_queue(uid_t target_uid, uid_t caller_uid, const char *req_id,
88 int req_type, const char *queue_type, const char *pkgid,
89 const char *args, void *extra_data)
91 struct backend_queue *queue;
92 struct backend_job *job;
94 queue = (struct backend_queue *)g_hash_table_lookup(queue_type_table,
95 (gconstpointer)queue_type);
97 ERR("no such queue: %s", queue_type);
101 job = calloc(1, sizeof(struct backend_job));
102 job->target_uid = target_uid;
103 job->caller_uid = caller_uid;
105 job->req_id = strdup(req_id);
106 job->req_type = req_type;
108 job->pkgid = strdup(pkgid);
110 job->args = strdup(args);
111 /* just assign pointer value */
112 job->backend_slot = queue->slot;
113 job->backend_type = queue->type;
114 job->backend_path = queue->path;
116 job->extra_data = extra_data;
118 queue->job_list = g_list_append(queue->job_list, (gpointer)job);
123 static int __init_backends(const char *fpath, const struct stat *sb,
124 int typeflag, struct FTW *ftwbuf)
127 struct backend_queue *queue;
129 if (typeflag != FTW_F && typeflag != FTW_SL)
132 queue = calloc(1, sizeof(struct backend_queue));
133 if (typeflag == FTW_F) {
134 queue->path = strdup(fpath);
135 } else if (typeflag == FTW_SL) {
136 queue->path = malloc(sb->st_size + 1);
137 r = readlink(fpath, queue->path, sb->st_size + 1);
138 if (r < 0 || r > sb->st_size) {
139 ERR("failed to readlink for %s", fpath);
144 queue->path[r] = '\0';
146 queue->type = strdup(fpath + ftwbuf->base);
147 queue->slot = num_of_backends++;
148 g_hash_table_insert(queue_type_table, (gpointer)queue->type,
150 g_hash_table_insert(queue_slot_table, (gpointer)queue->slot,
153 DBG("backend detected: %s(%s)", queue->type, queue->path);
158 static gboolean __str_equal(gconstpointer v1, gconstpointer v2)
160 const char *str1 = (const char *)v1;
161 const char *str2 = (const char *)v2;
164 return strcasecmp(str1, str2) == 0;
167 void __free_extra_info(struct backend_job *job)
170 if (job->extra->getsize_io)
171 g_io_channel_unref(job->extra->getsize_io);
172 if (job->extra->getsize_fd)
173 close(job->extra->getsize_fd);
174 if (job->extra->getsize_fifo) {
175 unlink(job->extra->getsize_fifo);
176 free(job->extra->getsize_fifo);
183 void _free_backend_job(struct backend_job *job)
185 __free_extra_info(job);
191 free(job->extra_data);
195 static void __free_backend_queue(gpointer data)
197 struct backend_queue *queue = (struct backend_queue *)data;
199 g_list_free_full(queue->job_list, (GDestroyNotify)_free_backend_job);
205 void _fini_backend_queue(void)
207 g_hash_table_destroy(queue_slot_table);
208 g_hash_table_destroy(queue_type_table);
211 int _init_backend_queue(void)
213 queue_type_table = g_hash_table_new_full(g_str_hash, __str_equal,
214 NULL, __free_backend_queue);
215 queue_slot_table = g_hash_table_new(g_direct_hash, g_direct_equal);
217 if (nftw(BACKEND_DIR, __init_backends, NOPENFD, FTW_PHYS))
220 DBG("number of backends: %d", num_of_backends);