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![Johannes Schindelin](/assets/img/avatar_default.png)
Instead of specifying whether a message by the fsck machinery constitutes an error or a warning, let's specify an identifier relating to the concrete problem that was encountered. This is necessary for upcoming support to be able to demote certain errors to warnings. In the process, simplify the requirements on the calling code: instead of having to handle full-blown varargs in every callback, we now send a string buffer ready to be used by the callback. We could use a simple enum for the message IDs here, but we want to guarantee that the enum values are associated with the appropriate message types (i.e. error or warning?). Besides, we want to introduce a parser in the next commit that maps the string representation to the enum value, hence we use the slightly ugly preprocessor construct that is extensible for use with said parser. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
46 lines
1.4 KiB
C
46 lines
1.4 KiB
C
#ifndef GIT_FSCK_H
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#define GIT_FSCK_H
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#define FSCK_ERROR 1
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#define FSCK_WARN 2
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struct fsck_options;
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/*
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* callback function for fsck_walk
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* type is the expected type of the object or OBJ_ANY
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* the return value is:
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* 0 everything OK
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* <0 error signaled and abort
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* >0 error signaled and do not abort
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*/
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typedef int (*fsck_walk_func)(struct object *obj, int type, void *data, struct fsck_options *options);
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/* callback for fsck_object, type is FSCK_ERROR or FSCK_WARN */
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typedef int (*fsck_error)(struct object *obj, int type, const char *message);
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int fsck_error_function(struct object *obj, int type, const char *message);
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struct fsck_options {
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fsck_walk_func walk;
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fsck_error error_func;
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unsigned strict:1;
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};
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#define FSCK_OPTIONS_DEFAULT { NULL, fsck_error_function, 0 }
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#define FSCK_OPTIONS_STRICT { NULL, fsck_error_function, 1 }
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/* descend in all linked child objects
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* the return value is:
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* -1 error in processing the object
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* <0 return value of the callback, which lead to an abort
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* >0 return value of the first signaled error >0 (in the case of no other errors)
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* 0 everything OK
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*/
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int fsck_walk(struct object *obj, void *data, struct fsck_options *options);
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/* If NULL is passed for data, we assume the object is local and read it. */
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int fsck_object(struct object *obj, void *data, unsigned long size,
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struct fsck_options *options);
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#endif
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