tdb2: rework some io.c functions to return enum TDB_ERROR.

[ccan] / ccan / tdb2 / private.h

diff --git a/ccan/tdb2/private.h b/ccan/tdb2/private.h
index 4ecda6a5f529729518b051a53db711f582fde6db..9abed97df08cdbe4b1fea9b9463adc8133ac72a2 100644 (file)
--- a/ccan/tdb2/private.h
+++ b/ccan/tdb2/private.h
@@ -379,10 +379,12 @@ struct tdb_context {
 };
 
 struct tdb_methods {
-       int (*tread)(struct tdb_context *, tdb_off_t, void *, tdb_len_t);
-       int (*twrite)(struct tdb_context *, tdb_off_t, const void *, tdb_len_t);
-       int (*oob)(struct tdb_context *, tdb_off_t, bool);
-       int (*expand_file)(struct tdb_context *, tdb_len_t);
+       enum TDB_ERROR (*tread)(struct tdb_context *, tdb_off_t, void *,
+                               tdb_len_t);
+       enum TDB_ERROR (*twrite)(struct tdb_context *, tdb_off_t, const void *,
+                                tdb_len_t);
+       enum TDB_ERROR (*oob)(struct tdb_context *, tdb_off_t, bool);
+       enum TDB_ERROR (*expand_file)(struct tdb_context *, tdb_len_t);
        void *(*direct)(struct tdb_context *, tdb_off_t, size_t, bool);
 };
 
@@ -474,16 +476,17 @@ void *tdb_access_write(struct tdb_context *tdb,
 /* Release result of tdb_access_read/write. */
 void tdb_access_release(struct tdb_context *tdb, const void *p);
 /* Commit result of tdb_acces_write. */
-int tdb_access_commit(struct tdb_context *tdb, void *p);
+enum TDB_ERROR tdb_access_commit(struct tdb_context *tdb, void *p);
 
 /* Convenience routine to get an offset. */
 tdb_off_t tdb_read_off(struct tdb_context *tdb, tdb_off_t off);
 
 /* Write an offset at an offset. */
-int tdb_write_off(struct tdb_context *tdb, tdb_off_t off, tdb_off_t val);
+enum TDB_ERROR tdb_write_off(struct tdb_context *tdb, tdb_off_t off,
+                            tdb_off_t val);
 
 /* Clear an ondisk area. */
-int zero_out(struct tdb_context *tdb, tdb_off_t off, tdb_len_t len);
+enum TDB_ERROR zero_out(struct tdb_context *tdb, tdb_off_t off, tdb_len_t len);
 
 /* Return a non-zero offset between >= start < end in this array (or end). */
 tdb_off_t tdb_find_nonzero_off(struct tdb_context *tdb,
@@ -499,12 +502,12 @@ tdb_off_t tdb_find_zero_off(struct tdb_context *tdb, tdb_off_t off,
 void *tdb_alloc_read(struct tdb_context *tdb, tdb_off_t offset, tdb_len_t len);
 
 /* Writes a converted copy of a record. */
-int tdb_write_convert(struct tdb_context *tdb, tdb_off_t off,
-                     const void *rec, size_t len);
+enum TDB_ERROR tdb_write_convert(struct tdb_context *tdb, tdb_off_t off,
+                                const void *rec, size_t len);
 
 /* Reads record and converts it */
-int tdb_read_convert(struct tdb_context *tdb, tdb_off_t off,
-                    void *rec, size_t len);
+enum TDB_ERROR tdb_read_convert(struct tdb_context *tdb, tdb_off_t off,
+                               void *rec, size_t len);
 
 /* Adds a stat, if it's in range. */
 void add_stat_(struct tdb_context *tdb, uint64_t *stat, size_t val);