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#pragma once
#include <Interpreters/SystemLog.h>
#include <Core/NamesAndTypes.h>
#include <Core/NamesAndAliases.h>
#include <Core/Field.h>
/// Call this function on crash.
void collectCrashLog(Int32 signal, UInt64 thread_id, const String & query_id, const StackTrace & stack_trace);
namespace DB
{
/** Information about fatal errors that lead to crash.
* Before crash we are writing info into system table for further analysis.
*/
struct CrashLogElement
{
time_t event_time{};
UInt64 timestamp_ns{};
Int32 signal{};
UInt64 thread_id{};
String query_id;
Array trace;
Array trace_full;
static std::string name() { return "CrashLog"; }
static NamesAndTypesList getNamesAndTypes();
static NamesAndAliases getNamesAndAliases() { return {}; }
void appendToBlock(MutableColumns & columns) const;
static const char * getCustomColumnList() { return nullptr; }
};
class CrashLog : public SystemLog<CrashLogElement>
{
using SystemLog<CrashLogElement>::SystemLog;
friend void ::collectCrashLog(Int32, UInt64, const String &, const StackTrace &);
static std::weak_ptr<CrashLog> crash_log;
public:
static void initialize(std::shared_ptr<CrashLog> crash_log_)
{
crash_log = crash_log_;
}
static consteval size_t getDefaultMaxSize() { return 1024; }
static consteval size_t getDefaultReservedSize() { return 1024; }
static consteval size_t getDefaultFlushIntervalMilliseconds() { return 1000; }
static consteval size_t shouldNotifyFlushOnCrash() { return true; }
};
}
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