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crash may cause deadlock

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This commit is contained in:
mutouyun 2019-03-26 22:24:25 +08:00
parent 05e481290e
commit 6cc2913f6b
6 changed files with 33 additions and 15 deletions
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3
build/CMakeLists.txt
View File

@ -6,4 +6,5 @@ if(NOT MSVC)
set(CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE} -O2")
endif()
add_subdirectory(test)
add_subdirectory(test)
add_subdirectory(chat)

14
build/chat/CMakeLists.txt Normal file
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@ -0,0 +1,14 @@
project(chat)
include_directories(../../include)
file(GLOB SRC_FILES ../../demo/chat/*.cpp)
file(GLOB HEAD_FILES ../../demo/chat/*.h)
set(EXECUTABLE_OUTPUT_PATH ${CMAKE_SOURCE_DIR}/../output)
link_directories(${EXECUTABLE_OUTPUT_PATH})
add_executable(${PROJECT_NAME} ${SRC_FILES} ${HEAD_FILES})
target_link_libraries(${PROJECT_NAME} ipc)
if(NOT MSVC)
target_link_libraries(${PROJECT_NAME} pthread rt)
endif()

8
include/def.h
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@ -27,10 +27,10 @@ using uint_t = typename uint<N>::type;
// constants
enum : std::size_t {
invalid_value = (std::numeric_limits<std::size_t>::max)(),
data_length = 64,
name_length = 64,
send_wait = 100 // ms
invalid_value = (std::numeric_limits<std::size_t>::max)(),
data_length = 64,
name_length = 64,
default_timeut = 100 // ms
};
enum class relat { // multiplicity of the relationship

2
src/ipc.cpp
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@ -230,7 +230,7 @@ static bool send(ipc::handle_t h, void const * data, std::size_t size) {
return [info, que, msg_id](int remain, void const * data, std::size_t size) {
if (!wait_for(info->wt_waiter_, [&] {
return !que->push(que, msg_id, remain, data, size);
}, send_wait)) {
}, default_timeut)) {
if (!que->force_push(que, msg_id, remain, data, size)) {
return false;
}

16
src/platform/waiter_linux.h
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@ -113,8 +113,10 @@ public:
calc_wait_time(ts, tm);
int eno;
if ((eno = ::pthread_cond_timedwait(&cond_, &mtx.native(), &ts)) != 0) {
ipc::error("fail pthread_cond_timedwait[%d]: tm = %zd, tv_sec = %ld, tv_nsec = %ld\n",
eno, tm, ts.tv_sec, ts.tv_nsec);
if (eno != ETIMEDOUT) {
ipc::error("fail pthread_cond_timedwait[%d]: tm = %zd, tv_sec = %ld, tv_nsec = %ld\n",
eno, tm, ts.tv_sec, ts.tv_nsec);
}
return false;
}
return true;
@ -181,8 +183,10 @@ public:
timespec ts;
calc_wait_time(ts, tm);
if (::sem_timedwait(h, &ts) != 0) {
ipc::error("fail sem_timedwait[%d]: tm = %zd, tv_sec = %ld, tv_nsec = %ld\n",
errno, tm, ts.tv_sec, ts.tv_nsec);
if (errno != ETIMEDOUT) {
ipc::error("fail sem_timedwait[%d]: tm = %zd, tv_sec = %ld, tv_nsec = %ld\n",
errno, tm, ts.tv_sec, ts.tv_nsec);
}
return false;
}
return true;
@ -260,7 +264,7 @@ public:
if (counter_ > 0) {
ret = sem_helper::post(std::get<1>(h));
-- counter_;
ret = ret && sem_helper::wait(std::get<2>(h));
ret = ret && sem_helper::wait(std::get<2>(h), default_timeut);
}
return ret;
}
@ -278,7 +282,7 @@ public:
}
do {
-- counter_;
ret = ret && sem_helper::wait(std::get<2>(h));
ret = ret && sem_helper::wait(std::get<2>(h), default_timeut);
} while (counter_ > 0);
}
return ret;

5
src/platform/waiter_win.h
View File

@ -39,7 +39,6 @@ public:
return true;
}
if (ret == WAIT_TIMEOUT) {
ipc::log("WaitForSingleObject is timeout.\n");
return false;
}
ipc::error("fail WaitForSingleObject[%lu]: 0x%08X\n", ::GetLastError(), ret);
@ -127,7 +126,7 @@ public:
if (*counter_ > 0) {
ret = sema_.post();
-- *counter_;
ret = ret && handshake_.wait();
ret = ret && handshake_.wait(default_timeut);
}
return ret;
}
@ -143,7 +142,7 @@ public:
ret = sema_.post(*counter_);
do {
-- *counter_;
ret = ret && handshake_.wait();
ret = ret && handshake_.wait(default_timeut);
} while (*counter_ > 0);
}
return ret;