X-Git-Url: http://git.indexdata.com/?a=blobdiff_plain;f=src%2Fhttp_command.c;h=b37eca9484b6ad1fb26f0155848c6fad32c3a964;hb=5775b27098fab0dac8ddcbc719a8b35c67391424;hp=3d4df77037953a6ba8c784330313d51a54267ded;hpb=b73890ede1ee6eeb8a07937733871077df6f15b9;p=pazpar2-moved-to-github.git diff --git a/src/http_command.c b/src/http_command.c index 3d4df77..b37eca9 100644 --- a/src/http_command.c +++ b/src/http_command.c @@ -33,6 +33,7 @@ Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA #include #include +#include "ppmutex.h" #include "eventl.h" #include "parameters.h" #include "session.h" @@ -60,6 +61,7 @@ struct http_session { struct http_sessions { struct http_session *session_list; YAZ_MUTEX mutex; + int log_level; }; http_sessions_t http_sessions_create(void) @@ -67,7 +69,8 @@ http_sessions_t http_sessions_create(void) http_sessions_t hs = xmalloc(sizeof(*hs)); hs->session_list = 0; hs->mutex = 0; - yaz_mutex_create(&hs->mutex); + pazpar2_mutex_create(&hs->mutex, "http_sessions"); + hs->log_level = yaz_log_module_level("HTTP"); return hs; } @@ -98,13 +101,16 @@ static void session_timeout(IOCHAN i, int event) } struct http_session *http_session_create(struct conf_service *service, - http_sessions_t http_sessions) + http_sessions_t http_sessions, + unsigned int sesid) { NMEM nmem = nmem_create(); struct http_session *r = nmem_malloc(nmem, sizeof(*r)); + char tmp_str[50]; - r->psession = new_session(nmem, service); - r->session_id = 0; + sprintf(tmp_str, "session#%u", sesid); + r->psession = new_session(nmem, service, tmp_str); + r->session_id = sesid; r->timestamp = 0; r->nmem = nmem; r->destroy_counter = r->activity_counter = 0; @@ -117,7 +123,7 @@ struct http_session *http_session_create(struct conf_service *service, r->timeout_iochan = iochan_create(-1, session_timeout, 0, "http_session_timeout"); iochan_setdata(r->timeout_iochan, r); - yaz_log(YLOG_LOG, "timeout=%d", service->session_timeout); + yaz_log(http_sessions->log_level, "%p Session %u created. timeout chan=%p timeout=%d", r, sesid, r->timeout_iochan, service->session_timeout); iochan_settimeout(r->timeout_iochan, service->session_timeout); iochan_add(service->server->iochan_man, r->timeout_iochan); @@ -126,27 +132,16 @@ struct http_session *http_session_create(struct conf_service *service, void http_session_destroy(struct http_session *s) { - int must_destroy = 1; + int must_destroy = 0; http_sessions_t http_sessions = s->http_sessions; - yaz_log(YLOG_LOG, "http_session_destroy %u", s->session_id); + yaz_log(http_sessions->log_level, "%p Session %u destroyed", s, s->session_id); yaz_mutex_enter(http_sessions->mutex); - - /* only if http_session destroy was already called, we will allow it - to be destroyed */ - if (s->destroy_counter != s->activity_counter) - must_destroy = 0; - - /* only if there are no active Z39.50 clients we will allow it to be - destroyed */ - if (session_active_clients(s->psession)) - must_destroy = 0; - - s->destroy_counter = s->activity_counter = 0; - if (must_destroy) - { + /* only if http_session has no active http sessions on it can be destroyed */ + if (s->destroy_counter == s->activity_counter) { struct http_session **p = 0; + must_destroy = 1; for (p = &http_sessions->session_list; *p; p = &(*p)->next) if (*p == s) { @@ -157,11 +152,16 @@ void http_session_destroy(struct http_session *s) yaz_mutex_leave(http_sessions->mutex); if (must_destroy) { /* destroying for real */ - yaz_log(YLOG_LOG, "Destroying session %u", s->session_id); + yaz_log(http_sessions->log_level, "%p Session %u destroyed", s, s->session_id); iochan_destroy(s->timeout_iochan); destroy_session(s->psession); nmem_destroy(s->nmem); } + else { + yaz_log(http_sessions->log_level, "%p Session %u destroyed delayed. Active clients (%d-%d). Waiting for new timeout.", + s, s->session_id, s->activity_counter, s->destroy_counter); + } + } static const char *get_msg(enum pazpar2_error_code code) @@ -279,6 +279,15 @@ static struct http_session *locate_session(struct http_channel *c) return p; } +// Call after use of locate_session, in order to increment the destroy_counter +static void release_session(struct http_channel *c, struct http_session *session) { + http_sessions_t http_sessions = c->http_sessions; + yaz_mutex_enter(http_sessions->mutex); + if (session) + session->destroy_counter++; + yaz_mutex_leave(http_sessions->mutex); +} + // Decode settings parameters and apply to session // Syntax: setting[target]=value static int process_settings(struct session *se, struct http_request *rq, @@ -356,21 +365,20 @@ static void cmd_init(struct http_channel *c) return; } } - s = http_session_create(service, c->http_sessions); + sesid = make_sessionid(); + s = http_session_create(service, c->http_sessions, sesid); - yaz_log(YLOG_DEBUG, "HTTP Session init"); + yaz_log(c->http_sessions->log_level, "%p Session init %u ", s, sesid); if (!clear || *clear == '0') session_init_databases(s->psession); else - yaz_log(YLOG_LOG, "No databases preloaded"); + yaz_log(YLOG_LOG, "HTTP Session %u init: No databases preloaded", sesid); - sesid = make_sessionid(); - s->session_id = sesid; if (process_settings(s->psession, c->request, c->response) < 0) return; sprintf(buf, HTTP_COMMAND_RESPONSE_PREFIX - "OK%u", sesid); + "OK%d", sesid); if (c->server->server_id) { strcat(buf, "."); @@ -418,10 +426,13 @@ static void cmd_settings(struct http_channel *c) xmlFreeDoc(doc); } - if (process_settings(s->psession, rq, rs) < 0) + if (process_settings(s->psession, rq, rs) < 0) { + release_session(c,s); return; + } rs->payload = HTTP_COMMAND_RESPONSE_PREFIX "OK"; http_send_response(c); + release_session(c,s); } // Compares two hitsbytarget nodes by hitcount @@ -544,6 +555,7 @@ static void cmd_termlist(struct http_channel *c) wrbuf_puts(c->wrbuf, "\n"); rs->payload = nmem_strdup(rq->channel->nmem, wrbuf_cstr(c->wrbuf)); http_send_response(c); + release_session(c,s); } @@ -597,6 +609,7 @@ static void cmd_bytarget(struct http_channel *c) wrbuf_puts(c->wrbuf, ""); rs->payload = nmem_strdup(c->nmem, wrbuf_cstr(c->wrbuf)); http_send_response(c); + release_session(c,s); } static void write_metadata(WRBUF w, struct conf_service *service, @@ -739,6 +752,7 @@ static void cmd_record(struct http_channel *c) { error(rs, PAZPAR2_RECORD_MISSING, idstr); } + release_session(c, s); return; } if (offsetstr) @@ -806,6 +820,7 @@ static void cmd_record(struct http_channel *c) http_send_response(c); } show_single_stop(s->psession, rec); + release_session(c, s); } static void cmd_record_ready(void *data) @@ -847,6 +862,7 @@ static void show_records(struct http_channel *c, int active) if (!(sp = reclist_parse_sortparms(c->nmem, sort, s->psession->service))) { error(rs, PAZPAR2_MALFORMED_PARAMETER_VALUE, "sort"); + release_session(c, s); return; } @@ -888,6 +904,7 @@ static void show_records(struct http_channel *c, int active) wrbuf_puts(c->wrbuf, "\n"); rs->payload = nmem_strdup(c->nmem, wrbuf_cstr(c->wrbuf)); http_send_response(c); + release_session(c, s); } static void show_records_ready(void *data) @@ -917,13 +934,14 @@ static void cmd_show(struct http_channel *c) if (session_set_watch(s->psession, SESSION_WATCH_SHOW, show_records_ready, c, c) != 0) { - yaz_log(YLOG_DEBUG, "Blocking on cmd_show"); + yaz_log(c->http_sessions->log_level, "%p Session %u: Blocking on cmd_show", s, s->session_id); } + release_session(c,s); return; } } - show_records(c, status); + release_session(c,s); } static void cmd_ping(struct http_channel *c) @@ -934,6 +952,7 @@ static void cmd_ping(struct http_channel *c) return; rs->payload = HTTP_COMMAND_RESPONSE_PREFIX "OK"; http_send_response(c); + release_session(c, s); } static int utf_8_valid(const char *str) @@ -978,21 +997,25 @@ static void cmd_search(struct http_channel *c) if (!query) { error(rs, PAZPAR2_MISSING_PARAMETER, "query"); + release_session(c,s); return; } if (!utf_8_valid(query)) { error(rs, PAZPAR2_MALFORMED_PARAMETER_ENCODING, "query"); + release_session(c,s); return; } code = search(s->psession, query, startrecs, maxrecs, filter, &addinfo); if (code) { error(rs, code, addinfo); + release_session(c,s); return; } rs->payload = HTTP_COMMAND_RESPONSE_PREFIX "OK"; http_send_response(c); + release_session(c,s); } @@ -1031,6 +1054,7 @@ static void cmd_stat(struct http_channel *c) wrbuf_puts(c->wrbuf, ""); rs->payload = nmem_strdup(c->nmem, wrbuf_cstr(c->wrbuf)); http_send_response(c); + release_session(c,s); } static void cmd_info(struct http_channel *c)