blob: 75f1e053aee14fcd697499c27c8e711ed77fec24 (
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
|
#include <mbgl/util/default_thread_pool.hpp>
#include <mbgl/actor/mailbox.hpp>
#include <mbgl/util/platform.hpp>
#include <mbgl/util/string.hpp>
#include <android/log.h>
namespace mbgl {
ThreadPool::ThreadPool(std::size_t count) {
threads.reserve(count);
for (std::size_t i = 0; i < count; ++i) {
threads.emplace_back([this, i]() {
platform::setCurrentThreadName(std::string{ "Worker " } + util::toString(i + 1));
__android_log_write(ANDROID_LOG_ERROR, "JNI_THREAD", ("created new: " + mbgl::platform::getCurrentThreadName()).c_str());
while (true) {
std::unique_lock<std::mutex> lock(mutex);
cv.wait(lock, [this] {
__android_log_write(ANDROID_LOG_ERROR, "JNI_THREAD", ("aweaken: " + mbgl::platform::getCurrentThreadName()).c_str());
return !queue.empty() || terminate;
});
if (terminate) {
return;
}
auto mailbox = queue.front();
queue.pop();
lock.unlock();
Mailbox::maybeReceive(mailbox);
}
});
}
}
ThreadPool::~ThreadPool() {
{
std::lock_guard<std::mutex> lock(mutex);
terminate = true;
}
cv.notify_all();
for (auto& thread : threads) {
thread.join();
}
}
void ThreadPool::schedule(std::weak_ptr<Mailbox> mailbox) {
{
std::lock_guard<std::mutex> lock(mutex);
queue.push(mailbox);
}
cv.notify_one();
}
} // namespace mbgl
|
