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1 /*
2  *
3  * Copyright 2015 gRPC authors.
4  *
5  * Licensed under the Apache License, Version 2.0 (the "License");
6  * you may not use this file except in compliance with the License.
7  * You may obtain a copy of the License at
8  *
9  *     http://www.apache.org/licenses/LICENSE-2.0
10  *
11  * Unless required by applicable law or agreed to in writing, software
12  * distributed under the License is distributed on an "AS IS" BASIS,
13  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14  * See the License for the specific language governing permissions and
15  * limitations under the License.
16  *
17  */
18 
19 #ifndef GRPC_CORE_LIB_IOMGR_TIMER_HEAP_H
20 #define GRPC_CORE_LIB_IOMGR_TIMER_HEAP_H
21 
22 #include <grpc/support/port_platform.h>
23 
24 #include "src/core/lib/iomgr/timer.h"
25 
26 typedef struct {
27   grpc_timer** timers;
28   uint32_t timer_count;
29   uint32_t timer_capacity;
30 } grpc_timer_heap;
31 
32 /* return 1 if the new timer is the first timer in the heap */
33 int grpc_timer_heap_add(grpc_timer_heap* heap, grpc_timer* timer);
34 
35 void grpc_timer_heap_init(grpc_timer_heap* heap);
36 void grpc_timer_heap_destroy(grpc_timer_heap* heap);
37 
38 void grpc_timer_heap_remove(grpc_timer_heap* heap, grpc_timer* timer);
39 grpc_timer* grpc_timer_heap_top(grpc_timer_heap* heap);
40 void grpc_timer_heap_pop(grpc_timer_heap* heap);
41 
42 int grpc_timer_heap_is_empty(grpc_timer_heap* heap);
43 
44 #endif /* GRPC_CORE_LIB_IOMGR_TIMER_HEAP_H */
45