[sr-dev] git:master: lib/srdb1 (k): add generic helper method for bulk data loading, e.g. for route infos

Module: sip-router Branch: master Commit: a9b939d7881696aab9d5c39099491e65b4902cee URL: http://git.sip-router.org/cgi-bin/gitweb.cgi/sip-router/?a=commit;h=a9b939d… Author: Henning Westerholt &lt;henning.westerholt(a)1und1.de&gt; Committer: Henning Westerholt &lt;henning.westerholt(a)1und1.de&gt; Date: Fri Jan 8 18:26:11 2010 +0100 lib/srdb1 (k): add generic helper method for bulk data loading, e.g. for route infos - add a generic helper method for bulk data loading, e.g. for routing informations from cr, lcr, htable or other similar tasks - TODO: adapt cr (patch ready, testing needed), adapt more modules --- lib/srdb1/db.c | 52 ++++++++++++++++++++++++++++++++++++++++++++++++++++ lib/srdb1/db.h | 16 ++++++++++++++++ 2 files changed, 68 insertions(+), 0 deletions(-) diff --git a/lib/srdb1/db.c b/lib/srdb1/db.c index c4bf7cf..6f85b22 100644 --- a/lib/srdb1/db.c +++ b/lib/srdb1/db.c @@ -425,3 +425,55 @@ int db_use_table(db1_con_t* _h, const str* _t) CON_TABLE(_h) = _t; return 0; } + + +/*! \brief Generic query helper for load bulk data + * + * Generic query helper method for load bulk data, e.g. lcr tables + * \param binding database module binding + * \param handle database connection + * \param name database table name + * \param cols queried columns + * \param count number of queried columns + * \param strict if set to 1 an error is returned when no data could be loaded, + otherwise just a warning is logged + * \param res database result, unchanged on failure and if no data could be found + * \return 0 if the query was run successful, -1 otherwise + */ +int db_load_bulk_data(db_func_t* binding, db1_con_t* handle, str* name, db_key_t* cols, + unsigned int count, unsigned int strict, db1_res_t* res) +{ + if (binding == NULL) { + LM_ERR("invalid database module binding\n"); + return -1; + } + + if(handle == NULL) { + LM_ERR("invalid database handle\n"); + return -1; + } + + if (binding->use_table(handle, name) < 0) { + LM_ERR("error in use_table for database\n"); + return -1; + } + + /* select the whole table and all the columns */ + if(binding->query(handle, 0, 0, 0, cols, 0, count, 0, &res) < 0) { + LM_ERR("error while querying database\n"); + return -1; + } + + if(RES_ROW_N(res) == 0) { + binding->free_result(handle, res); + if (strict == 1) { + LM_ERR("no data in the database table %.*s\n", name->len, name->s); + return -1; + } else { + LM_WARN("no data in the database table %.*s, use an empty set\n", name->len, name->s); + return 0; + } + } + + return 0; +} diff --git a/lib/srdb1/db.h b/lib/srdb1/db.h index 0429e2c..7da401b 100644 --- a/lib/srdb1/db.h +++ b/lib/srdb1/db.h @@ -398,5 +398,21 @@ int db_use_table(db1_con_t* _h, const str* _t); typedef int (*db_bind_api_f)(db_func_t *dbb); +/** + * \brief Generic query helper for load bulk data + * + * Generic query helper method for load bulk data, e.g. lcr tables + * \param binding database module binding + * \param handle database connection + * \param name database table name + * \param cols queried columns + * \param count number of queried columns + * \param strict if set to 1 an error is returned when no data could be loaded, + otherwise just a warning is logged + * \param res database result, unchanged on failure and if no data could be found + * \return 0 if the query was run successful, -1 otherwise + */ +int db_load_bulk_data(db_func_t* binding, db1_con_t* handle, str* name, db_key_t* cols, + unsigned int count, unsigned int strict, db1_res_t* res); #endif /* DB1_H */