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      1 /*
      2  * Copyright (C) 2016 The Android Open Source Project
      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 #ifndef _LIBLOG_CONFIG_READ_H__
     18 #define _LIBLOG_CONFIG_READ_H__
     19 
     20 #include <cutils/list.h>
     21 
     22 #include "log_portability.h"
     23 
     24 __BEGIN_DECLS
     25 
     26 extern LIBLOG_HIDDEN struct listnode __android_log_transport_read;
     27 extern LIBLOG_HIDDEN struct listnode __android_log_persist_read;
     28 
     29 #define read_transport_for_each(transp, transports)                           \
     30   for ((transp) = node_to_item((transports)->next,                            \
     31                                struct android_log_transport_read, node);      \
     32        ((transp) != node_to_item((transports),                                \
     33                                  struct android_log_transport_read, node)) && \
     34        ((transp) != node_to_item((transp)->node.next,                         \
     35                                  struct android_log_transport_read, node));   \
     36        (transp) = node_to_item((transp)->node.next,                           \
     37                                struct android_log_transport_read, node))
     38 
     39 #define read_transport_for_each_safe(transp, n, transports)                   \
     40   for ((transp) = node_to_item((transports)->next,                            \
     41                                struct android_log_transport_read, node),      \
     42       (n) = (transp)->node.next;                                              \
     43        ((transp) != node_to_item((transports),                                \
     44                                  struct android_log_transport_read, node)) && \
     45        ((transp) !=                                                           \
     46         node_to_item((n), struct android_log_transport_read, node));          \
     47        (transp) = node_to_item((n), struct android_log_transport_read, node), \
     48       (n) = (transp)->node.next)
     49 
     50 LIBLOG_HIDDEN void __android_log_config_read();
     51 LIBLOG_HIDDEN void __android_log_config_read_close();
     52 
     53 __END_DECLS
     54 
     55 #endif /* _LIBLOG_CONFIG_READ_H__ */
     56