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Copy pathdbghelp_utils.hpp
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50 lines (39 loc) · 1.98 KB
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#ifndef DBGHELP_UTILS_HPP
#define DBGHELP_UTILS_HPP
#if defined(CPPTRACE_UNWIND_WITH_DBGHELP) \
|| defined(CPPTRACE_GET_SYMBOLS_WITH_DBGHELP) \
|| defined(CPPTRACE_DEMANGLE_WITH_WINAPI)
#include "utils/common.hpp"
#include <unordered_map>
#include <mutex>
CPPTRACE_BEGIN_NAMESPACE
namespace detail {
class dbghelp_syminit_info {
// `void*` is used to avoid including the (expensive) windows.h header here
void* handle = nullptr;
bool should_sym_cleanup; // true if cleanup is not managed by the syminit cache
bool should_close_handle; // true if cleanup is not managed by the syminit cache and the handle was duplicated
dbghelp_syminit_info(void* handle, bool should_sym_cleanup, bool should_close_handle);
public:
~dbghelp_syminit_info();
void release();
NODISCARD static dbghelp_syminit_info make_not_owned(void* handle);
NODISCARD static dbghelp_syminit_info make_owned(void* handle, bool should_close_handle);
dbghelp_syminit_info(const dbghelp_syminit_info&) = delete;
dbghelp_syminit_info(dbghelp_syminit_info&&);
dbghelp_syminit_info& operator=(const dbghelp_syminit_info&) = delete;
dbghelp_syminit_info& operator=(dbghelp_syminit_info&&);
void* get_process_handle() const;
dbghelp_syminit_info make_non_owning_view() const;
};
// Ensure SymInitialize is called on the process. This function either
// - Finds that SymInitialize has been called for a handle to the current process already, in which case it returns
// a non-owning dbghelp_syminit_info instance holding the handle
// - Calls SymInitialize a handle to the current process, caches it, and returns a non-owning dbghelp_syminit_info
// - Calls SymInitialize and returns an owning dbghelp_syminit_info which will handle cleanup
dbghelp_syminit_info ensure_syminit();
NODISCARD std::unique_lock<std::recursive_mutex> get_dbghelp_lock();
}
CPPTRACE_END_NAMESPACE
#endif
#endif