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      1 /*
      2  *  sync.h
      3  *
      4  *   Copyright 2012 Google, Inc
      5  *
      6  *  Licensed under the Apache License, Version 2.0 (the "License");
      7  *  you may not use this file except in compliance with the License.
      8  *  You may obtain a copy of the License at
      9  *
     10  *      http://www.apache.org/licenses/LICENSE-2.0
     11  *
     12  *  Unless required by applicable law or agreed to in writing, software
     13  *  distributed under the License is distributed on an "AS IS" BASIS,
     14  *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     15  *  See the License for the specific language governing permissions and
     16  *  limitations under the License.
     17  */
     18 
     19 #ifndef __SYS_CORE_SYNC_H
     20 #define __SYS_CORE_SYNC_H
     21 
     22 #include <sys/cdefs.h>
     23 #include <stdint.h>
     24 
     25 __BEGIN_DECLS
     26 
     27 // XXX: These structs are copied from the header "linux/sync.h".
     28 struct sync_fence_info_data {
     29  uint32_t len;
     30  char name[32];
     31  int32_t status;
     32  uint8_t pt_info[0];
     33 };
     34 
     35 struct sync_pt_info {
     36  uint32_t len;
     37  char obj_name[32];
     38  char driver_name[32];
     39  int32_t status;
     40  uint64_t timestamp_ns;
     41  uint8_t driver_data[0];
     42 };
     43 
     44 /* timeout in msecs */
     45 int sync_wait(int fd, int timeout);
     46 int sync_merge(const char *name, int fd1, int fd2);
     47 struct sync_fence_info_data *sync_fence_info(int fd);
     48 struct sync_pt_info *sync_pt_info(struct sync_fence_info_data *info,
     49                                   struct sync_pt_info *itr);
     50 void sync_fence_info_free(struct sync_fence_info_data *info);
     51 
     52 __END_DECLS
     53 
     54 #endif /* __SYS_CORE_SYNC_H */
     55