sr-dev December 2011

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git:master: presence(k): option to fetch records from db in chunks
by Daniel-Constantin Mierla 01 Dec '11

01 Dec '11

Module: sip-router Branch: master Commit: 5931a413c2e7be4aa0c8ec57f777c1f1805dc86e URL: http://git.sip-router.org/cgi-bin/gitweb.cgi/sip-router/?a=commit;h=5931a41… Author: Daniel-Constantin Mierla <miconda(a)gmail.com> Committer: Daniel-Constantin Mierla <miconda(a)gmail.com> Date: Thu Dec 1 09:20:01 2011 +0100 presence(k): option to fetch records from db in chunks - can cope with large number of db records - new parameter fetch_rows (default value 500) --- modules_k/presence/presence.c | 2 + modules_k/presence/presentity.c | 96 +++++++++++++++++++++------------------ modules_k/presence/subscribe.c | 42 +++-------------- 3 files changed, 60 insertions(+), 80 deletions(-) diff --git a/modules_k/presence/presence.c b/modules_k/presence/presence.c index b0ec644..d3db179 100644 --- a/modules_k/presence/presence.c +++ b/modules_k/presence/presence.c @@ -90,6 +90,7 @@ str presentity_table= str_init("presentity"); str active_watchers_table = str_init("active_watchers"); str watchers_table= str_init("watchers"); +int pres_fetch_rows = 500; int library_mode= 0; str server_address= {0, 0}; evlist_t* EvList= NULL; @@ -179,6 +180,7 @@ static param_export_t params[]={ { "enable_sphere_check", INT_PARAM, &sphere_enable}, { "timeout_rm_subs", INT_PARAM, &timeout_rm_subs}, { "send_fast_notify", INT_PARAM, &send_fast_notify}, + { "fetch_rows", INT_PARAM, &pres_fetch_rows}, {0,0,0} }; diff --git a/modules_k/presence/presentity.c b/modules_k/presence/presentity.c index 75c3cfc..0c194f2 100644 --- a/modules_k/presence/presentity.c +++ b/modules_k/presence/presentity.c @@ -54,6 +54,8 @@ xmlNodePtr xmlNodeGetNodeByName(xmlNodePtr node, const char *name, static str pu_200_rpl = str_init("OK"); static str pu_412_rpl = str_init("Conditional request failed"); +extern int pres_fetch_rows; + #define ETAG_LEN 128 char* generate_ETag(int publ_count) @@ -717,8 +719,8 @@ int pres_htable_restore(void) goto error; } static str query_str = str_init("username"); - if (pa_dbf.query (pa_db, 0, 0, 0,result_cols,0, n_result_cols, - &query_str, &result) < 0) + if (db_fetch_query(&pa_dbf, pres_fetch_rows, pa_db, 0, 0, 0, result_cols, + 0, n_result_cols, &query_str, &result) < 0) { LM_ERR("querying presentity\n"); goto error; @@ -731,58 +733,62 @@ int pres_htable_restore(void) pa_dbf.free_result(pa_db, result); return 0; } - - for(i= 0; i< result->n; i++) - { - row = &result->rows[i]; - row_vals = ROW_VALUES(row); - if(row_vals[expires_col].val.int_val< (int)time(NULL)) - continue; - - sphere= NULL; - user.s= (char*)row_vals[user_col].val.string_val; - user.len= strlen(user.s); - domain.s= (char*)row_vals[domain_col].val.string_val; - domain.len= strlen(domain.s); - ev_str.s= (char*)row_vals[event_col].val.string_val; - ev_str.len= strlen(ev_str.s); - - if(event_parser(ev_str.s, ev_str.len, &ev)< 0) + do { + for(i= 0; i< result->n; i++) { - LM_ERR("parsing event\n"); + row = &result->rows[i]; + row_vals = ROW_VALUES(row); + + if(row_vals[expires_col].val.int_val< (int)time(NULL)) + continue; + + sphere= NULL; + user.s= (char*)row_vals[user_col].val.string_val; + user.len= strlen(user.s); + domain.s= (char*)row_vals[domain_col].val.string_val; + domain.len= strlen(domain.s); + ev_str.s= (char*)row_vals[event_col].val.string_val; + ev_str.len= strlen(ev_str.s); + + if(event_parser(ev_str.s, ev_str.len, &ev)< 0) + { + LM_ERR("parsing event\n"); + free_event_params(ev.params.list, PKG_MEM_TYPE); + goto error; + } + event= ev.type; free_event_params(ev.params.list, PKG_MEM_TYPE); - goto error; - } - event= ev.type; - free_event_params(ev.params.list, PKG_MEM_TYPE); - if(uandd_to_uri(user, domain, &uri)< 0) - { - LM_ERR("constructing uri\n"); - goto error; - } - /* insert in hash_table*/ + if(uandd_to_uri(user, domain, &uri)< 0) + { + LM_ERR("constructing uri\n"); + goto error; + } + /* insert in hash_table*/ - if(sphere_enable && event== EVENT_PRESENCE ) - { - body.s= (char*)row_vals[body_col].val.string_val; - body.len= strlen(body.s); - sphere= extract_sphere(body); - } + if(sphere_enable && event== EVENT_PRESENCE ) + { + body.s= (char*)row_vals[body_col].val.string_val; + body.len= strlen(body.s); + sphere= extract_sphere(body); + } - if(insert_phtable(&uri, event, sphere)< 0) - { - LM_ERR("inserting record in presentity hash table"); - pkg_free(uri.s); + if(insert_phtable(&uri, event, sphere)< 0) + { + LM_ERR("inserting record in presentity hash table"); + pkg_free(uri.s); + if(sphere) + pkg_free(sphere); + goto error; + } if(sphere) pkg_free(sphere); - goto error; + pkg_free(uri.s); } - if(sphere) - pkg_free(sphere); - pkg_free(uri.s); - } + } while((db_fetch_next(&pa_dbf, pres_fetch_rows, pa_db, &result)==1) + && (RES_ROW_N(result)>0)); + pa_dbf.free_result(pa_db, result); return 0; diff --git a/modules_k/presence/subscribe.c b/modules_k/presence/subscribe.c index 3227cc7..b29fa34 100644 --- a/modules_k/presence/subscribe.c +++ b/modules_k/presence/subscribe.c @@ -46,8 +46,6 @@ #include "notify.h" #include "../pua/hash.h" -#define ACTW_FETCH_SIZE 128 - int get_stored_info(struct sip_msg* msg, subs_t* subs, int* error_ret, str* reply_str); int get_database_info(struct sip_msg* msg, subs_t* subs, int* error_ret, @@ -61,6 +59,7 @@ static str pu_400_rpl = str_init("Bad request"); static str pu_500_rpl = str_init("Server Internal Error"); static str pu_489_rpl = str_init("Bad Event"); +extern int pres_fetch_rows; int send_2XX_reply(struct sip_msg * msg, int reply_code, int lexpire, str* local_contact) @@ -1837,27 +1836,11 @@ int restore_db_subs(void) } /* select the whole table and all the columns */ - if (DB_CAPABILITY(pa_dbf, DB_CAP_FETCH)) + if (db_fetch_query(&pa_dbf, pres_fetch_rows, pa_db, 0, 0, 0, result_cols, + 0, n_result_cols, 0, &result) < 0) { - if(pa_dbf.query(pa_db,0,0,0,result_cols, 0, - n_result_cols, 0, 0) < 0) - { - LM_ERR("Error while querying (fetch) database\n"); - return -1; - } - if(pa_dbf.fetch_result(pa_db,&result,ACTW_FETCH_SIZE)<0) - { - LM_ERR("fetching rows failed\n"); - return -1; - } - } else - { - if (pa_dbf.query (pa_db, 0, 0, 0,result_cols,0, n_result_cols, - 0, &result) < 0) - { - LM_ERR("querying presentity\n"); - goto error; - } + LM_ERR("querying presentity\n"); + goto error; } nr_rows = RES_ROW_N(result); @@ -1983,19 +1966,8 @@ int restore_db_subs(void) } } - /* any more data to be fetched ?*/ - if (DB_CAPABILITY(pa_dbf, DB_CAP_FETCH)) { - if (pa_dbf.fetch_result( pa_db, &result, - ACTW_FETCH_SIZE ) < 0) { - LM_ERR("fetching more rows failed\n"); - goto error; - } - nr_rows = RES_ROW_N(result); - } else { - nr_rows = 0; - } - - }while (nr_rows>0); + } while((db_fetch_next(&pa_dbf, pres_fetch_rows, pa_db, &result)==1) + && (RES_ROW_N(result)>0)); pa_dbf.free_result(pa_db, result);

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sr-dev December 2011