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library/cpp/dwarf_backtrace/backtrace.h
42 строки
1 KB
igorbalduev
Support for single-threaded backtrace_state
06 дек 2023, 23:16
06 дек 2023, 23:16
85b2eb2
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#pragma once #include <util/generic/array_ref.h> #include <util/generic/maybe.h> #include <util/generic/string.h> #include <util/generic/vector.h> #include <functional> namespace NDwarf { struct TLineInfo { TString FileName; int Line; int Col; TString FunctionName; uintptr_t Address; int Index; }; struct TError { int Code; TString Message; }; enum class EResolving { Continue = 0, Break = 1, }; using TCallback = std::function<EResolving(const TLineInfo&)>; // Resolves backtrace addresses and calls the callback for all line infos of inlined functions there. // Stops execution if the callback returns `EResolving::Break`. [[nodiscard]] TMaybe<TError> ResolveBacktrace(TArrayRef<const void* const> backtrace, TCallback callback); // Same as `ResolveBacktrace` but uses a separate single-threaded `backtrace_state` protected by a static mutex. // // libbacktrace may leak memory when used concurrently even with the `threaded` option set to 1, // which is explicitly stated in its source code (contrib/libs/backtrace/dwarf.c:dwarf_lookup_pc, // contrib/libs/backtrace/fileline.c:fileline_initialize) and confirmed in MAPSBKOFCT-1959. [[nodiscard]] TMaybe<TError> ResolveBacktraceLocked(TArrayRef<const void* const> backtrace, TCallback callback); }