0dd44584ab
reflog entries have unbounded size. In theory, each log ('g') block in reftable
can have an arbitrary size, so the format allows for arbitrarily sized reflog
messages. However, in the implementation, we are not scaling the log blocks up
with the message, and writing a large message fails.
This triggers a failure for reftable in t7006-pager.sh.
Until this is fixed more structurally, report an error from within the reftable
library for easier debugging.
Signed-off-by: Han-Wen Nienhuys <hanwen@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
67 lines
1.7 KiB
C
67 lines
1.7 KiB
C
/*
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Copyright 2020 Google LLC
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Use of this source code is governed by a BSD-style
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license that can be found in the LICENSE file or at
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https://developers.google.com/open-source/licenses/bsd
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*/
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#ifndef REFTABLE_ERROR_H
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#define REFTABLE_ERROR_H
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/*
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* Errors in reftable calls are signaled with negative integer return values. 0
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* means success.
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*/
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enum reftable_error {
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/* Unexpected file system behavior */
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REFTABLE_IO_ERROR = -2,
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/* Format inconsistency on reading data */
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REFTABLE_FORMAT_ERROR = -3,
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/* File does not exist. Returned from block_source_from_file(), because
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* it needs special handling in stack.
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*/
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REFTABLE_NOT_EXIST_ERROR = -4,
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/* Trying to write out-of-date data. */
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REFTABLE_LOCK_ERROR = -5,
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/* Misuse of the API:
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* - on writing a record with NULL refname.
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* - on writing a reftable_ref_record outside the table limits
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* - on writing a ref or log record before the stack's
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* next_update_inde*x
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* - on writing a log record with multiline message with
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* exact_log_message unset
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* - on reading a reftable_ref_record from log iterator, or vice versa.
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*
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* When a call misuses the API, the internal state of the library is
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* kept unchanged.
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*/
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REFTABLE_API_ERROR = -6,
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/* Decompression error */
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REFTABLE_ZLIB_ERROR = -7,
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/* Wrote a table without blocks. */
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REFTABLE_EMPTY_TABLE_ERROR = -8,
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/* Dir/file conflict. */
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REFTABLE_NAME_CONFLICT = -9,
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/* Invalid ref name. */
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REFTABLE_REFNAME_ERROR = -10,
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/* Entry does not fit. This can happen when writing outsize reflog
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messages. */
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REFTABLE_ENTRY_TOO_BIG_ERROR = -11,
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};
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/* convert the numeric error code to a string. The string should not be
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* deallocated. */
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const char *reftable_error_str(int err);
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#endif
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