blob: c453b8f758ba5dd07ba6288ca05950f953257f85 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
|
/*
*
* Copyright 2015 gRPC authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
#ifndef GRPC_CORE_LIB_GPRPP_THD_H
#define GRPC_CORE_LIB_GPRPP_THD_H
/** Internal thread interface. */
#include <grpc/support/port_platform.h>
#include <grpc/support/log.h>
#include <grpc/support/sync.h>
#include <grpc/support/thd_id.h>
#include <grpc/support/time.h>
namespace grpc_core {
class Thread {
public:
/// Default constructor only to allow use in structs that lack constructors
/// Does not produce a validly-constructed thread; must later
/// use placement new to construct a real thread. Does not init mu_ and cv_
Thread(): real_(false), alive_(false), started_(false), joined_(false) {}
Thread(const char* thd_name, void (*thd_body)(void* arg), void* arg,
bool* success = nullptr);
~Thread() {
if (!alive_) {
// This thread never existed, so nothing to do
} else {
GPR_ASSERT(joined_);
}
if (real_) {
gpr_mu_destroy(&mu_);
gpr_cv_destroy(&ready_);
}
}
void Start() {
gpr_mu_lock(&mu_);
if (alive_) {
started_ = true;
gpr_cv_signal(&ready_);
}
gpr_mu_unlock(&mu_);
}
void Join();
static void Init();
static bool AwaitAll(gpr_timespec deadline);
private:
gpr_mu mu_;
gpr_cv ready_;
gpr_thd_id id_;
bool real_;
bool alive_;
bool started_;
bool joined_;
};
} // namespace grpc_core
#endif /* GRPC_CORE_LIB_GPRPP_THD_H */
|
