diff options
Diffstat (limited to 'deps/uv/src/win/fs.c')
| -rw-r--r-- | deps/uv/src/win/fs.c | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/deps/uv/src/win/fs.c b/deps/uv/src/win/fs.c index 2d72cdc70f..8223d6f655 100644 --- a/deps/uv/src/win/fs.c +++ b/deps/uv/src/win/fs.c @@ -556,9 +556,14 @@ void fs__read(uv_fs_t* req) { DWORD error; int result; unsigned int index; + LARGE_INTEGER original_position; + LARGE_INTEGER zero_offset; + int restore_position; VERIFY_FD(fd, req); + zero_offset.QuadPart = 0; + restore_position = 0; handle = uv__get_osfhandle(fd); if (handle == INVALID_HANDLE_VALUE) { @@ -569,6 +574,10 @@ void fs__read(uv_fs_t* req) { if (offset != -1) { memset(&overlapped, 0, sizeof overlapped); overlapped_ptr = &overlapped; + if (SetFilePointerEx(handle, zero_offset, &original_position, + FILE_CURRENT)) { + restore_position = 1; + } } else { overlapped_ptr = NULL; } @@ -593,6 +602,9 @@ void fs__read(uv_fs_t* req) { ++index; } while (result && index < req->fs.info.nbufs); + if (restore_position) + SetFilePointerEx(handle, original_position, NULL, FILE_BEGIN); + if (result || bytes > 0) { SET_REQ_RESULT(req, bytes); } else { @@ -615,9 +627,14 @@ void fs__write(uv_fs_t* req) { DWORD bytes; int result; unsigned int index; + LARGE_INTEGER original_position; + LARGE_INTEGER zero_offset; + int restore_position; VERIFY_FD(fd, req); + zero_offset.QuadPart = 0; + restore_position = 0; handle = uv__get_osfhandle(fd); if (handle == INVALID_HANDLE_VALUE) { SET_REQ_WIN32_ERROR(req, ERROR_INVALID_HANDLE); @@ -627,6 +644,10 @@ void fs__write(uv_fs_t* req) { if (offset != -1) { memset(&overlapped, 0, sizeof overlapped); overlapped_ptr = &overlapped; + if (SetFilePointerEx(handle, zero_offset, &original_position, + FILE_CURRENT)) { + restore_position = 1; + } } else { overlapped_ptr = NULL; } @@ -651,6 +672,9 @@ void fs__write(uv_fs_t* req) { ++index; } while (result && index < req->fs.info.nbufs); + if (restore_position) + SetFilePointerEx(handle, original_position, NULL, FILE_BEGIN); + if (result || bytes > 0) { SET_REQ_RESULT(req, bytes); } else { |