diff options
Diffstat (limited to 'ChangeLog')
| -rw-r--r-- | ChangeLog | 52 |
1 files changed, 52 insertions, 0 deletions
@@ -1,3 +1,55 @@ +2015-02-25 Kaz Kylheku <kaz@kylheku.com> + + Introducing persistent error state on streams. + + * lib.c (cobj_ops): New function. + + * lib.h (cobj_ops): Declared. + + * stream.c (null_ops): Initializer updated. + (struct stdio_handle): New member, err. + (stdio_stream_mark): Mark the err member. + (errno_to_string): New static function. + (stdio_maybe_read_error, stdio_maybe_error): Set persistent error + state. Use errno_to_string_function. + (stdio_put_string, stdio_put_char, stdio_put_byte, stdio_seek, + stdio_get_line): Set errno to zero, so that if the underlying + operations do not set errno on err, we don't misinterpret some pervious + errno value as pertaining to the failed stream operation. + (stdio_get_error, stdio_get_error_str, stdio_clear_error): New static + functions. + (stdio_ops, tail_ops, pipe_ops): Update initializer with new functions. + (string_in_get_error, string_in_get_error_str): New static functions. + (string_in_ops): Update initializer with new functions. + (byte_in_get_error, byte_in_get_error_str): New static functions. + (byte_in_ops): Update initializer with new functions. + (string_out_ops, strlist_out_ops): Update initializer with null + pointers for new functions. + (struct dir_handle): New struct type. + (dir_destroy, dir_mark): New functions. + (dir_get_line): Refactor for struct dir_handle context rather than DIR. + Persist error state. + (dir_close): Refactor for struct dir_handle. + (dir_get_error, dir_get_error_str, dir_clear_error): New static functions. + (dir_ops): Update initializer with new functions. + (make_stdio_stream_common): Initialize new err member. + (make_dir_stream): Refactor for struct dir_handle. + (get_error, get_error_str, clear_error): New functions. + (cat_get_error, cat_get_error_str, cat_clear_error): New static + functions. + (cat_stream_ops): Update initializer with new functions. + (stream_init): Register get-error, get-error-str, clear-error intrinsics. + + * stream.h (struct strm_ops): New function pointer members, get_error, + get_error_str and clear_error. + (strm_ops_init): Macro extended with new arguments for new function pointers. + (get_error, get_error_str, clear_error): Declared. + + * syslog.c (syslog_strm_ops): Update initializer with null + pointers for new functions. + + * txr.1: Documented get-error, get-error-str and clear-error. + 2015-02-21 Kaz Kylheku <kaz@kylheku.com> Improved error reporting, particularly for macro expansion. |