svn_error_t *
svn_sqlite__column_checksum(const svn_checksum_t **checksum,
svn_sqlite__stmt_t *stmt, int column,
apr_pool_t *result_pool)
{
const char *digest = svn_sqlite__column_text(stmt, column, NULL);
if (digest == NULL)
*checksum = NULL;
else
SVN_ERR(svn_checksum_deserialize(checksum, digest,
result_pool, result_pool));
return SVN_NO_ERROR;
}
svn_error_t *
svn_fs_fs__walk_rep_reference(svn_fs_t *fs,
svn_error_t *(*walker)(representation_t *,
void *,
svn_fs_t *,
apr_pool_t *),
void *walker_baton,
svn_cancel_func_t cancel_func,
void *cancel_baton,
apr_pool_t *pool)
{
fs_fs_data_t *ffd = fs->fsap_data;
svn_sqlite__stmt_t *stmt;
svn_boolean_t have_row;
int iterations = 0;
apr_pool_t *iterpool = svn_pool_create(pool);
/* Don't check ffd->rep_sharing_allowed. */
SVN_ERR_ASSERT(ffd->format >= SVN_FS_FS__MIN_REP_SHARING_FORMAT);
if (! ffd->rep_cache_db)
SVN_ERR(svn_fs_fs__open_rep_cache(fs, pool));
/* Get the statement. (There are no arguments to bind.) */
SVN_ERR(svn_sqlite__get_statement(&stmt, ffd->rep_cache_db,
STMT_GET_ALL_REPS));
/* Walk the cache entries. */
SVN_ERR(svn_sqlite__step(&have_row, stmt));
while (have_row)
{
representation_t *rep;
const char *sha1_digest;
/* Clear ITERPOOL occasionally. */
if (iterations++ % 16 == 0)
svn_pool_clear(iterpool);
/* Check for cancellation. */
if (cancel_func)
SVN_ERR(cancel_func(cancel_baton));
/* Construct a representation_t. */
rep = apr_pcalloc(iterpool, sizeof(*rep));
sha1_digest = svn_sqlite__column_text(stmt, 0, iterpool);
SVN_ERR(svn_checksum_parse_hex(&rep->sha1_checksum,
svn_checksum_sha1, sha1_digest,
iterpool));
rep->revision = svn_sqlite__column_revnum(stmt, 1);
rep->offset = svn_sqlite__column_int64(stmt, 2);
rep->size = svn_sqlite__column_int64(stmt, 3);
rep->expanded_size = svn_sqlite__column_int64(stmt, 4);
/* Sanity check. */
if (rep)
SVN_ERR(rep_has_been_born(rep, fs, iterpool));
/* Walk. */
SVN_ERR(walker(rep, walker_baton, fs, iterpool));
SVN_ERR(svn_sqlite__step(&have_row, stmt));
}
SVN_ERR(svn_sqlite__reset(stmt));
svn_pool_destroy(iterpool);
return SVN_NO_ERROR;
}
svn_error_t *
svn_fs_fs__walk_rep_reference(svn_fs_t *fs,
svn_revnum_t start,
svn_revnum_t end,
svn_error_t *(*walker)(representation_t *,
void *,
svn_fs_t *,
apr_pool_t *),
void *walker_baton,
svn_cancel_func_t cancel_func,
void *cancel_baton,
apr_pool_t *pool)
{
fs_fs_data_t *ffd = fs->fsap_data;
svn_sqlite__stmt_t *stmt;
svn_boolean_t have_row;
int iterations = 0;
apr_pool_t *iterpool = svn_pool_create(pool);
/* Don't check ffd->rep_sharing_allowed. */
SVN_ERR_ASSERT(ffd->format >= SVN_FS_FS__MIN_REP_SHARING_FORMAT);
if (! ffd->rep_cache_db)
SVN_ERR(svn_fs_fs__open_rep_cache(fs, pool));
/* Check global invariants. */
if (start == 0)
{
svn_revnum_t max;
SVN_ERR(svn_sqlite__get_statement(&stmt, ffd->rep_cache_db,
STMT_GET_MAX_REV));
SVN_ERR(svn_sqlite__step(&have_row, stmt));
max = svn_sqlite__column_revnum(stmt, 0);
SVN_ERR(svn_sqlite__reset(stmt));
if (SVN_IS_VALID_REVNUM(max)) /* The rep-cache could be empty. */
SVN_ERR(svn_fs_fs__ensure_revision_exists(max, fs, iterpool));
}
SVN_ERR(svn_sqlite__get_statement(&stmt, ffd->rep_cache_db,
STMT_GET_REPS_FOR_RANGE));
SVN_ERR(svn_sqlite__bindf(stmt, "rr",
start, end));
/* Walk the cache entries. */
SVN_ERR(svn_sqlite__step(&have_row, stmt));
while (have_row)
{
representation_t *rep;
const char *sha1_digest;
svn_error_t *err;
svn_checksum_t *checksum;
/* Clear ITERPOOL occasionally. */
if (iterations++ % 16 == 0)
svn_pool_clear(iterpool);
/* Check for cancellation. */
if (cancel_func)
{
err = cancel_func(cancel_baton);
if (err)
return svn_error_compose_create(err, svn_sqlite__reset(stmt));
}
/* Construct a representation_t. */
rep = apr_pcalloc(iterpool, sizeof(*rep));
svn_fs_fs__id_txn_reset(&rep->txn_id);
sha1_digest = svn_sqlite__column_text(stmt, 0, iterpool);
err = svn_checksum_parse_hex(&checksum, svn_checksum_sha1,
sha1_digest, iterpool);
if (err)
return svn_error_compose_create(err, svn_sqlite__reset(stmt));
rep->has_sha1 = TRUE;
memcpy(rep->sha1_digest, checksum->digest, sizeof(rep->sha1_digest));
rep->revision = svn_sqlite__column_revnum(stmt, 1);
rep->item_index = svn_sqlite__column_int64(stmt, 2);
rep->size = svn_sqlite__column_int64(stmt, 3);
rep->expanded_size = svn_sqlite__column_int64(stmt, 4);
/* Walk. */
err = walker(rep, walker_baton, fs, iterpool);
if (err)
return svn_error_compose_create(err, svn_sqlite__reset(stmt));
SVN_ERR(svn_sqlite__step(&have_row, stmt));
}
SVN_ERR(svn_sqlite__reset(stmt));
svn_pool_destroy(iterpool);
return SVN_NO_ERROR;
}
