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[bugfix](becore) has to use value to capture lambda value to avoid core during callback #32132

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merged 1 commit into from
Mar 12, 2024
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[bugfix](becore) has to use value to capture lambda value to avoid core during callback #32132

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10 changes: 6 additions & 4 deletions be/src/vec/sink/writer/vtablet_writer.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -357,18 +357,20 @@ Status VNodeChannel::init(RuntimeState* state) {
_cur_add_block_request->set_eos(false);

// add block closure
// Has to using value to capture _task_exec_ctx because tablet writer may destroyed during callback.
_send_block_callback = WriteBlockCallback<PTabletWriterAddBlockResult>::create_shared();
_send_block_callback->addFailedHandler([this](bool is_last_rpc) {
auto ctx_lock = _task_exec_ctx.lock();
_send_block_callback->addFailedHandler([&, task_exec_ctx = _task_exec_ctx](bool is_last_rpc) {
auto ctx_lock = task_exec_ctx.lock();
if (ctx_lock == nullptr) {
return;
}
_add_block_failed_callback(is_last_rpc);
});

_send_block_callback->addSuccessHandler(
[this](const PTabletWriterAddBlockResult& result, bool is_last_rpc) {
auto ctx_lock = _task_exec_ctx.lock();
[&, task_exec_ctx = _task_exec_ctx](const PTabletWriterAddBlockResult& result,
bool is_last_rpc) {
auto ctx_lock = task_exec_ctx.lock();
if (ctx_lock == nullptr) {
return;
}
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