github.com/searKing/golang/go@v1.2.117/os/signal/cgo/include/boost/stacktrace/detail/safe_dump_win.ipp (about)

     1  // Copyright Antony Polukhin, 2016-2023.
     2  //
     3  // Distributed under the Boost Software License, Version 1.0. (See
     4  // accompanying file LICENSE_1_0.txt or copy at
     5  // http://www.boost.org/LICENSE_1_0.txt)
     6  
     7  #ifndef BOOST_STACKTRACE_DETAIL_SAFE_DUMP_WIN_IPP
     8  #define BOOST_STACKTRACE_DETAIL_SAFE_DUMP_WIN_IPP
     9  
    10  #include <boost/config.hpp>
    11  #ifdef BOOST_HAS_PRAGMA_ONCE
    12  #   pragma once
    13  #endif
    14  
    15  #include <boost/stacktrace/safe_dump_to.hpp>
    16  
    17  #include <boost/core/noncopyable.hpp>
    18  
    19  #include <boost/winapi/get_current_process.hpp>
    20  #include <boost/winapi/file_management.hpp>
    21  #include <boost/winapi/handles.hpp>
    22  #include <boost/winapi/access_rights.hpp>
    23  
    24  namespace boost { namespace stacktrace { namespace detail {
    25  
    26  std::size_t dump(void* /*fd*/, const native_frame_ptr_t* /*frames*/, std::size_t /*frames_count*/) noexcept {
    27  #if 0 // This code potentially could cause deadlocks (according to the MSDN). Disabled
    28      boost::winapi::DWORD_ written;
    29      const boost::winapi::DWORD_ bytes_to_write = static_cast<boost::winapi::DWORD_>(
    30          sizeof(native_frame_ptr_t) * frames_count
    31      );
    32      if (!boost::winapi::WriteFile(fd, frames, bytes_to_write, &written, 0)) {
    33          return 0;
    34      }
    35  
    36      return frames_count;
    37  #endif
    38      return 0;
    39  }
    40  
    41  std::size_t dump(const char* /*file*/, const native_frame_ptr_t* /*frames*/, std::size_t /*frames_count*/) noexcept {
    42  #if 0 // This code causing deadlocks on some platforms. Disabled
    43      void* const fd = boost::winapi::CreateFileA(
    44          file,
    45          boost::winapi::GENERIC_WRITE_,
    46          0,
    47          0,
    48          boost::winapi::CREATE_ALWAYS_,
    49          boost::winapi::FILE_ATTRIBUTE_NORMAL_,
    50          0
    51      );
    52  
    53      if (fd == boost::winapi::invalid_handle_value) {
    54          return 0;
    55      }
    56  
    57      const std::size_t size = boost::stacktrace::detail::dump(fd, frames, frames_count);
    58      boost::winapi::CloseHandle(fd);
    59      return size;
    60  #endif
    61      return 0;
    62  }
    63  
    64  }}} // namespace boost::stacktrace::detail
    65  
    66  #endif // BOOST_STACKTRACE_DETAIL_SAFE_DUMP_WIN_IPP