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ReleaseSemaphore mayn't wake WaitForSingleObject up soon

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This commit is contained in:
mutouyun 2019-02-12 23:28:57 +08:00
parent 4262f7bd34
commit a6d88a1208
3 changed files with 29 additions and 21 deletions
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3
src/platform/detail.h
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@ -8,6 +8,7 @@
#include <atomic>
#include "def.h"
#include "export.h"
// pre-defined
@ -82,7 +83,7 @@ constexpr auto shared_lock(T&& lc) {
#endif/*__cplusplus < 201703L*/
std::size_t calc_unique_id();
IPC_EXPORT std::size_t calc_unique_id();
template <typename F, typename D>
constexpr decltype(auto) static_switch(std::size_t /*i*/, std::index_sequence<>, F&& /*f*/, D&& def) {

10
src/platform/waiter_win.h
View File

@ -2,11 +2,7 @@
#include <Windows.h>
#include <algorithm>
#include <iterator>
#include <atomic>
#include <array>
#include <tuple>
#include "rw_lock.h"
#include "pool_alloc.h"
@ -51,20 +47,26 @@ public:
void notify(handle_t h) {
if (h == invalid()) return;
{
IPC_UNUSED_ auto guard = ipc::detail::unique_lock(lock_);
if (counter_ == 0) return;
-- counter_;
::ReleaseSemaphore(h, 1, NULL);
}
::Sleep(1);
}
void broadcast(handle_t h) {
if (h == invalid()) return;
{
IPC_UNUSED_ auto guard = ipc::detail::unique_lock(lock_);
if (counter_ == 0) return;
long all_count = counter_;
counter_ = 0;
::ReleaseSemaphore(h, all_count, NULL);
}
::Sleep(1);
}
};
} // namespace detail

19
test/test_ipc.cpp
View File

@ -368,7 +368,7 @@ void Unit::test_route_rtt() {
for (std::size_t i = 0;; ++i) {
auto dd = cc.recv();
if (dd.size() < 2) return;
// std::cout << "recving: " << i << "-[" << dd.size() << "]" << std::endl;
//std::cout << "recv: " << i << "-[" << dd.size() << "]" << std::endl;
while (!cr.send(ipc::buff_t('a'))) {
std::this_thread::yield();
}
@ -383,8 +383,8 @@ void Unit::test_route_rtt() {
}
sw.start();
for (std::size_t i = 0; i < LoopCount; ++i) {
// std::cout << "sending: " << i << "-[" << datas__[i].size() << "]" << std::endl;
cc.send(datas__[i]);
//std::cout << "sent: " << i << "-[" << datas__[i].size() << "]" << std::endl;
/*auto dd = */cr.recv();
// if (dd.size() != 1 || dd[0] != 'a') {
// QVERIFY(false);
@ -434,14 +434,17 @@ void Unit::test_channel_rtt() {
std::thread t1 {[&] {
ipc::channel cc { "my-ipc-channel" };
bool recv_2 = false;
for (std::size_t i = 0;; ++i) {
auto dd = cc.recv();
if (dd.size() < 2) return;
//std::cout << "recving: " << i << "-[" << dd.size() << "]" << std::endl;
while (!cc.send(ipc::buff_t('a'))) {
cc.wait_for_recv(1);
//if (i % 1000 == 0) {
// std::cout << "recv: " << i << "-[" << dd.size() << "]" << std::endl;
//}
while (!recv_2) {
recv_2 = cc.wait_for_recv(2);
}
//std::cout << "sent ack." << std::endl;
cc.send(ipc::buff_t('a'));
}
}};
@ -450,7 +453,9 @@ void Unit::test_channel_rtt() {
cc.wait_for_recv(1);
sw.start();
for (std::size_t i = 0; i < LoopCount; ++i) {
//std::cout << "sending: " << i << "-[" << datas__[i].size() << "]" << std::endl;
//if (i % 1000 == 0) {
// std::cout << "send: " << i << "-[" << datas__[i].size() << "]" << std::endl;
//}
cc.send(datas__[i]);
/*auto dd = */cc.recv();
//if (dd.size() != 1 || dd.data<char>()[0] != 'a') {