X-Git-Url: http://git.indexdata.com/?a=blobdiff_plain;f=rset%2Frset.c;h=41d39a7feb2cc7316a273be95277b709856d0ec1;hb=f00e10dfcb19faeeabb42c5532f4b47f5548be97;hp=6f7c3422f29f292a9ab29db3a7cf5149de198b3a;hpb=13bf0c380e98816595127291b64368dd9b8ca639;p=idzebra-moved-to-github.git diff --git a/rset/rset.c b/rset/rset.c index 6f7c342..41d39a7 100644 --- a/rset/rset.c +++ b/rset/rset.c @@ -1,6 +1,6 @@ -/* $Id: rset.c,v 1.32 2004-09-03 14:59:50 heikki Exp $ - Copyright (C) 1995,1996,1997,1998,1999,2000,2001,2002,2003,2004 - Index Data Aps +/* $Id: rset.c,v 1.43 2005-01-17 01:21:44 adam Exp $ + Copyright (C) 1995-2005 + Index Data ApS This file is part of the Zebra server. @@ -20,8 +20,6 @@ Free Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ - - #include #include #include @@ -29,119 +27,215 @@ Free Software Foundation, 59 Temple Place - Suite 330, Boston, MA #include #include +static int log_level = 0; +static int log_level_initialized = 0; -/* creates an rfd. Either allocates a new one, in which case the priv */ -/* pointer is null, and will have to be filled in, or picks up one */ -/* from the freelist, in which case the priv is already allocated, */ -/* and presumably everything that hangs from it as well */ - +/** \fn rfd_create_base(RSET rs) + * + * creates an rfd. Either allocates a new one, in which case the priv + * pointer is null, and will have to be filled in, or picks up one + * from the freelist, in which case the priv is already allocated, + * and presumably everything that hangs from it as well + */ RSFD rfd_create_base(RSET rs) { - RSFD rnew=rs->free_list; - if (rnew) { - rs->free_list=rnew->next; + RSFD rnew = rs->free_list; + + if (rnew) + { + rs->free_list = rnew->next; assert(rnew->rset==rs); - /* logf(LOG_DEBUG,"rfd-create_base (fl): rfd=%p rs=%p fl=%p priv=%p", - rnew, rs, rs->free_list, rnew->priv); */ - } else { - rnew=nmem_malloc(rs->nmem, sizeof(*rnew)); - rnew->priv=NULL; - rnew->rset=rs; - /* logf(LOG_DEBUG,"rfd_create_base (new): rfd=%p rs=%p fl=%p priv=%p", - rnew, rs, rs->free_list, rnew->priv); */ + yaz_log(log_level, "rfd_create_base (fl): rfd=%p rs=%p fl=%p priv=%p", + rnew, rs, rs->free_list, rnew->priv); + } + else + { + rnew = nmem_malloc(rs->nmem, sizeof(*rnew)); + rnew->priv = NULL; + rnew->rset = rs; + yaz_log(log_level, "rfd_create_base (new): rfd=%p rs=%p fl=%p priv=%p", + rnew, rs, rs->free_list, rnew->priv); } - rnew->next=NULL; /* not part of any (free?) list */ + rnew->next = rs->use_list; + rs->use_list = rnew; return rnew; } -/* puts an rfd into the freelist of the rset. Only when the rset gets */ -/* deleted, will all the nmem disappear */ +/** \fn rfd_delete_base + * + * puts an rfd into the freelist of the rset. Only when the rset gets + * deleted, will all the nmem disappear */ void rfd_delete_base(RSFD rfd) { - RSET rs=rfd->rset; - /* logf(LOG_DEBUG,"rfd_delete_base: rfd=%p rs=%p priv=%p fl=%p", - rfd, rs, rfd->priv, rs->free_list); */ - assert(NULL == rfd->next); - rfd->next=rs->free_list; - rs->free_list=rfd; + RSFD *pfd; + RSET rs = rfd->rset; + yaz_log(log_level, "rfd_delete_base: rfd=%p rs=%p priv=%p fl=%p", + rfd, rs, rfd->priv, rs->free_list); + for (pfd = &rs->use_list; *pfd; pfd = &(*pfd)->next) + if (*pfd == rfd) + { + *pfd = (*pfd)->next; + rfd->next = rs->free_list; + rs->free_list = rfd; + return; + } + yaz_log(YLOG_WARN, "rset_close handle not found. type=%s", + rs->control->desc); } - RSET rset_create_base(const struct rset_control *sel, - NMEM nmem, const struct key_control *kcontrol) + NMEM nmem, const struct key_control *kcontrol, + int scope, TERMID term) { RSET rnew; NMEM M; /* assert(nmem); */ /* can not yet be used, api/t4 fails */ + if (!log_level_initialized) + { + log_level = yaz_log_module_level("rset"); + log_level_initialized = 1; + } + if (nmem) - M=nmem; + M = nmem; else - M=nmem_create(); - rnew = (RSET) nmem_malloc(M,sizeof(*rnew)); - /* logf (LOG_DEBUG, "rs_create(%s) rs=%p (nm=%p)", sel->desc, rnew, nmem); */ - rnew->nmem=M; + M = nmem_create(); + rnew = (RSET) nmem_malloc(M, sizeof(*rnew)); + yaz_log(log_level, "rs_create(%s) rs=%p (nm=%p)", sel->desc, rnew, nmem); + rnew->nmem = M; if (nmem) - rnew->my_nmem=0; + rnew->my_nmem = 0; else - rnew->my_nmem=1; + rnew->my_nmem = 1; rnew->control = sel; - rnew->count = 1; + rnew->count = 1; /* refcount! */ rnew->priv = 0; - rnew->free_list=NULL; - rnew->keycontrol=kcontrol; + rnew->free_list = NULL; + rnew->use_list = NULL; + rnew->keycontrol = kcontrol; + rnew->scope = scope; + rnew->term = term; + if (term) + term->rset = rnew; return rnew; } void rset_delete (RSET rs) { (rs->count)--; -/* logf(LOG_DEBUG,"rs_delete(%s), rs=%p, count=%d", - rs->control->desc, rs, rs->count); */ + yaz_log(log_level, "rs_delete(%s), rs=%p, count=%d", + rs->control->desc, rs, rs->count); if (!rs->count) { + if (rs->use_list) + yaz_log(YLOG_WARN, "rs_delete(%s) still has RFDs in use", + rs->control->desc); (*rs->control->f_delete)(rs); if (rs->my_nmem) nmem_destroy(rs->nmem); } } +int rfd_is_last(RSFD rfd) +{ + if (rfd->rset->use_list == rfd && rfd->next == 0) + return 1; + return 0; +} + RSET rset_dup (RSET rs) { (rs->count)++; + yaz_log(log_level, "rs_dup(%s), rs=%p, count=%d", + rs->control->desc, rs, rs->count); return rs; } -#if 0 -void rset_default_pos (RSFD rfd, double *current, double *total) -{ /* This should never really be needed, but it is still used in */ - /* those rsets that we don't really plan to use, like isam-s */ - assert(rfd); - assert(current); - assert(total); - *current=-1; /* signal that pos is not implemented */ - *total=-1; -} /* rset_default_pos */ -#endif - -int rset_default_forward(RSFD rfd, void *buf, - const void *untilbuf) +int rset_default_forward(RSFD rfd, void *buf, TERMID *term, + const void *untilbuf) { - int more=1; - int cmp=2; - logf (LOG_DEBUG, "rset_default_forward starting '%s' (ct=%p rfd=%p)", + int more = 1; + int cmp = rfd->rset->scope; + if (log_level) + { + yaz_log (log_level, "rset_default_forward starting '%s' (ct=%p rfd=%p)", rfd->rset->control->desc, rfd->rset, rfd); - /* key_logdump(LOG_DEBUG, untilbuf); */ - while ( (cmp==2) && (more)) + /* key_logdump(log_level, untilbuf); */ + } + while (cmp>=rfd->rset->scope && more) { - logf (LOG_DEBUG, "rset_default_forward looping m=%d c=%d",more,cmp); - more=rset_read(rfd, buf); + if (log_level) /* time-critical, check first */ + yaz_log(log_level, "rset_default_forward looping m=%d c=%d", + more, cmp); + more = rset_read(rfd, buf, term); if (more) - cmp=(rfd->rset->keycontrol->cmp)(untilbuf,buf); -/* if (more) - key_logdump(LOG_DEBUG,buf); */ + cmp = (rfd->rset->keycontrol->cmp)(untilbuf, buf); } - logf (LOG_DEBUG, "rset_default_forward exiting m=%d c=%d",more,cmp); + if (log_level) + yaz_log (log_level, "rset_default_forward exiting m=%d c=%d", + more, cmp); return more; } +/** + * rset_count uses rset_pos to get the total and returns that. + * This is ok for rsisamb/c/s, and for some other rsets, but in case of + * booleans etc it will give bad estimate, as nothing has been read + * from that rset + */ +zint rset_count(RSET rs) +{ + double cur, tot; + RSFD rfd = rset_open(rs, 0); + rset_pos(rfd, &cur, &tot); + rset_close(rfd); + return (zint) tot; +} + + +/** rset_get_no_terms is a getterms function for those that don't have any */ +void rset_get_no_terms(RSET ct, TERMID *terms, int maxterms, int *curterm) +{ + return; +} + +/* rset_get_one_term gets that one term from an rset. Used by rsisamX */ +void rset_get_one_term(RSET ct,TERMID *terms,int maxterms,int *curterm) +{ + if (ct->term) + { + if (*curterm < maxterms) + terms[*curterm] = ct->term; + (*curterm)++; + } +} + + +TERMID rset_term_create (const char *name, int length, const char *flags, + int type, NMEM nmem) + +{ + TERMID t; + yaz_log (log_level, "term_create '%s' %d f=%s type=%d nmem=%p", + name, length, flags, type, nmem); + t= (TERMID) nmem_malloc(nmem, sizeof(*t)); + if (!name) + t->name = NULL; + else if (length == -1) + t->name = nmem_strdup(nmem, name); + else + { + t->name = (char*) nmem_malloc(nmem, length+1); + memcpy (t->name, name, length); + t->name[length] = '\0'; + } + if (!flags) + t->flags = NULL; + else + t->flags = nmem_strdup(nmem, flags); + t->type = type; + t->rankpriv = 0; + t->rset = 0; + return t; +}