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citrm.c
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citrm.c
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#include <stdio.h>
#include <string.h>
#include <ctype.h>
#include "cisis.h"
#if CICPP
#include <citrm.hpp>
#define CITRM_SOURCE
#include <cirun.hpp>
/* ------------------------- CITRM.HPP --------------------------------- */
#define trminit xtrminit /* internal use */
#define trmalloc(itrm,nbytes) xtrmalloc(nbytes) /* internal use */
#define term(itrm,dbnamp,keyp) xterm(dbnamp,keyp) /* internal use */
#define trmread(trmp,treecase,retkeyp) xtrmread(treecase,retkeyp) /* internal use */
/*#define cntread xcntread moved to CISISX */
/*#define invsetup xinvsetup moved to CISISX */
/*#define noderead xnoderead moved to CISISX */
/*#define leafread xleafread moved to CISISX */
#define nxterm xnxterm /* internal use */
#define posthdr1(trmp) xposthdr1() /* internal use */
#define posting(itrm,nord) xposting(nord) /* internal use */
#define postpost(trmp) xpostpost() /* internal use */
/*#define postread xpostread moved to CISISX */
/* --------------------------------------------------------------------- */
#endif /* CICPP */
/* ----------------------------- trm.c ------------------------------ */
#define TRXTRACE 00
#define TRMTRACE 00
#define TRATRACE 0
#define TRITRACE 0
#define TRRTRACE 0
#define TRSTRACE 00007
#define TRSXRACE 00007
#define TRNTRACE 000
#define TRLTRACE 00
#define TRPTRACE 00
#define TRETRACE 0
#define TRYTRACE 00
#define TRCTRACE 0
#define SAMTRACx 0
#define SAMTRACE 00 /* last */
#define IFPDUMMY 1 /* .ifp may be absent for validation */
#if !CICPP
/* global */
int trmifupd=0; /* trm IFUPDATE operation */
off_t lrlrseek=0L;
int lrlrsize=0;
char lasttrmread[CIMPL+1] = ""; /* 950724 */
#if PC
UCHR highv[LE2+1] = { 0xFF, '\0' }; /* manca controllo.. if signed */
#else
UCHR highv[LE2+1] = { 0x7F, '\0' }; /* manca controllo.. if signed */
#endif
#endif /* CICPP */
#if !CICPP
#define CITRM_CISISX_SOURCE 1
#include "cisisx.c"
#endif
#if CICPP
#define NO_ITRM -1L
#endif /* CICPP */
#if CICPP
TRMSTRU :: TRMSTRU (CISISX *cxp)
{
TRMSTRU *trmp;
memset (this, 0x00, sizeof(*this)); // sizeof X member functions ?
trmp = this;
TRMnbytes = -1;
cisisxp = cxp;
if (cisisxp == NULL)
fatal("TRMSTRU/cisisxp==NULL");
}
#endif /* CICPP */
#if CICPP
void TRMSTRU :: xtrminit(void)
#else /* CICPP */
void trminit() /*
------------
inicializa vtrmp;
expande highv;
checa defines;
*/
#endif /* CICPP */
{
#if !LIND
int n;
#endif
memset(&highv[1],highv[0],LE2-1); highv[LE2]='\0';
#if !CICPP
for (ntrms=maxntrm;ntrms--; )
vtrmp[ntrms]=NULL;
ntrms=0;
#if !LIND
n=IFHDRINFOS*INFOSIZE;
if (n != IFHDRSIZ)
fatal("trminit/check2");
n=IFPSTINFOS*INFOSIZE;
if (n != IFPSTSIZ)
fatal("trminit/check3");
#endif
#if TRITRACE
printf("trminit - ntrms=%"_LD_" maxntrm=%"_LD_"\n",ntrms,maxntrm);
#endif
#endif /* CICPP */
}
#if CICPP
LONGX TRMSTRU :: xtrmalloc(LONGX nbytes)
#else /* CICPP */
LONGX trmalloc(itrm,nbytes) /*
-------------
abenda se nbytes != IFBSIZ, se diferente de zero;
abenda se ja' alocado;
aloca TRMHSIZE+nbytes bytes;
aponta por vtrmp[itrm];
garante inicializacao com zeros;
armazena vtrmp[itrm]->trmnbytes;
retorna itrm
*/
LONGX itrm; /* indice de vtrmp, para ALLOC */
LONGX nbytes; /* tamanho da area em bytes */
#endif /* CICPP */
{
TRMSTRU *trmp;
#if CICPP
trminit();
LONGX itrm = NO_ITRM;
#else /* CICPP */
if (!ntrms)
trminit();
if (itrm < 0 || itrm >= maxntrm)
fatal("trmalloc/index");
if (ntrms >= maxntrm)
fatal("trmalloc/overflow");
#endif /* CICPP */
if (nbytes)
if (nbytes != IFBSIZ)
fatal("trmalloc/nbytes");
#if !CICPP
if (vtrmp[itrm])
fatal("trmalloc/again");
if ((TRMHSIZE+nbytes) > ALLOMAXV)
fatal("trmalloc/ALLOMAXV/TRMHSIZE+nbytes");
trmp=(TRMSTRU *)ALLOC((ALLOPARM)(TRMHSIZE+nbytes));
if (trmp == (TRMSTRU *)ALLONULL)
fatal("trmalloc/ALLOC");
vtrmp[itrm]=trmp;
ntrms++;
memset(trmp,0x00,(size_t)(TRMHSIZE+nbytes));
#else /* CICPP */
trmp = this;
#endif /* CICPP */
TRMnbytes=nbytes;
TRMtype=TYPETRM;
#if TRATRACE
#if !CICPP
printf("trmalloc - vtrmp[%"_LD_"]=%p ntrms=%"_LD_"\n",itrm,vtrmp[itrm],ntrms);
#endif /* CICPP */
printf("trmalloc - TRMtype=%d TRMnbytes=%"_LD_"\n",TRMtype,TRMnbytes);
#endif
return(itrm);
}
#if CICPP
LONGX TRMSTRU :: xterm(UCHR *dbnamp,
UCHR *keyp)
#else /* CICPP */
LONGX term(itrm,dbnamp,keyp) /*
---------
inicializa vtrmp, se necessario;
toma valor absoluto de itrm;
aloca o registro itrm, se ainda nao alocado;
seta dbxp com o resultado de dbxstorp(dbnamp);
chama invsetup, se necessario;
guarda chave preenchida com brancos em trmp->trmkey;
procura termo exato;
se nao achou,
a) se itrm_in < 0 fica com primeiro resultado, ou
b) procura na outra arvore e fica com a menor;
move termo para trmp->trmkey;
seta trmp->trmrc com retorno de trmread();
seta controles para nxterm();
chama posthdr1;
retorna itrm_in
*/
LONGX itrm; /* indice de vtrmp, para store */
UCHR *dbnamp; /* ptr nome base de dados a ler */
UCHR *keyp; /* termo a recuperar */
#endif /* CICPP */
{
#if CICPP
LONGX itrm = NO_ITRM;
#endif /* CICPP */
TRMSTRU *trmp;
DBXSTRU *dbxp;
LONGX itrm_in;
int treecase;
int len,n,n1,tc2,n2,rc2,kn;
UCHR *p,*k1p,*k2p,*dbnp;
#if TRXTRACE
UCHR area[LE2+1];
#endif
#if SAMEL
char dbxname[sizeof(DBXname)],*dbp;
int lxx;
#endif
if (!keyp) keyp=(unsigned char *)"";
dbnp=dbnamp;
#if SAMEL
lxx=0;
strcpy(dbxname,dbp=dbnamp);
for (p=dbnamp=dbxname; *p; p++)
if (*p == '#') {
*p++ = '\0';
for (; isdigit(*p); p++) lxx=10*lxx+(int)*p-(int)'0';
if (*p) fatal(dbp);
if (lxx < 1 || lxx > MAXSAMEL) {
printf("*** dbname=%s\n",dbp);
fatal("term/dbname");
}
break;
}
if (trmtrace) printf("term - %s,%s,lxx=%d\n",dbp,dbnamp,lxx);
#endif
#if CICPP
trminit();
itrm_in = itrm;
#else /* CICPP */
if (!ntrms)
trminit();
itrm_in = labs(itrm);
#endif /* CICPP */
#if CICPP
trmp = this;
#else /* CICPP */
if (itrm_in < 0 || itrm_in >= maxntrm)
fatal("term/index");
trmp=vtrmp[itrm_in];
#endif /* CICPP */
#if CICPP
if (TRMnbytes < 0)
xtrmalloc((LONGX)IFBSIZ);
#else /* CICPP */
if (!trmp)
trmp=vtrmp[trmalloc(itrm_in,(LONGX)IFBSIZ)];
#endif /* CICPP */
dbxp=dbxstorp((char *)dbnamp);
#if SAMEL
DBXiflxx=lxx;
#endif
#if BEFORE950724
#else
if (strcmp((CONST char *)dbnamp,lasttrmread)) {
if (lasttrmread[0]) {
DBXSTRU *lastdbxp=dbxsrchp(lasttrmread);
if (lastdbxp) if (lastdbxp->dbxiflush) invflush(lasttrmread);
}
strcpy(lasttrmread,(CONST char *)dbnamp);
}
#endif
#if TRMTRACE
printf("term - itrm=%"_LD_" trmp=%p dbxp=%p keyp=%s\n",itrm,trmp,dbxp,keyp);
#endif
if (TRMdbxp) {
/* ver MULTI */
#if SAMEL
if (strcmp(TDBname,dbnamp) || TDBiflxx != lxx) { /* v3.2 */
#else
if (strcmp(TDBname,(CONST char *)dbnamp)) { /* v3.2 */
/*
Para nao referenciar TDBname quando TRMdbxp liberado por dbxflush:
if ((TRMdbxp!=dbxp) || (strcmp(TDBname,(CONST char *)dbnamp)))
(HB 23/11/98)
*/
#endif
TRMl1buf.pos=0;
TRMl2buf.pos=0;
#if 0
printf("now:\n");
printf("TRMl1buf.pos=%d TRMl2buf.pos=%d\n",TRMl1buf.pos,TRMl2buf.pos);
#endif
#if !LIND
if (TRMnbytes) ((IFPSTRU *)TRMifbuf)->ifpblk=0; /* 26/02/92 */
#endif
}
}
TRMdbxp=dbxp;
/* ver MULTI */
if (!TDBifmap)
invsetup(dbnp,0L,0L,0L);
len=strlen((CONST char *)keyp);
for (p=keyp+len-1; len; )
if (isspace(*p)) {
p--; len--;
}
else
break;
if (len > LE2) len=LE2;
memmove(TRMkey,keyp,len);
memset(TRMkey+len,' ',LE2-len); TRMkey[LE2]='\0';
#if TRMTRACE
printf("term - len=%d TRMkey='%s'(%d)\n",len,TRMkey,strlen(TRMkey));
#endif
if (len <= LE1) {
treecase=0; n1=LE1;
tc2=1; n2=LE2;
}
else {
treecase=1; n1=LE2;
tc2=0; n2=LE1;
}
#if TRMTRACE
printf("term - treecase=%d n1=%d tc2=%d n2=%d\n",treecase,n1,tc2,n2);
#endif
TRMrc=trmread(trmp,treecase,&k1p); TRMlidxp(treecase)=k1p;
#if TRXTRACE
memmove(area,k1p,n1); area[n1]='\0';
printf("term - TRMrc=%d (em %d) k1p=%p=%s\n",TRMrc,treecase,k1p,area);
#endif
#if CICPP
if (TRMrc == RCNORMAL) {
#else
if (TRMrc == RCNORMAL || itrm < 0) {
#endif /* CICPP */
kn=n1;
TRMlcase=treecase; TRMlidxp(tc2)=NULL;
}
else {
if (tc2 == 0)
TRMkey[LE1-1]++; /* OLD: nothing */
rc2=trmread(trmp,tc2,&k2p); TRMlidxp(tc2)=k2p;
#if TRXTRACE
memmove(area,k2p,n2); area[n2]='\0';
printf("term - TRMrc=%d (em %d) k2p=%p=%s\n",TRMrc,tc2,k2p,area);
#endif
if (rc2 == RCNORMAL) {
TRMrc=RCNEXT; kn=n2; /* OLD: TRMrc=rc2 */
TRMlcase=tc2;
}
else {
n=strncmp((CONST char *)k1p,(CONST char *)k2p,LE1); /* min */
#if TRXTRACE
memmove(area,k1p,n1); area[n1]='\0';
printf("term - n=%d[%d-%d] p/ strncmp(%s,",n,*k1p,*k2p,area);
memmove(area,k2p,n2); area[n2]='\0';
printf("%s,%d)\n",area,LE1);
#endif
if (n == 0) { /* AOT/HB - 08/04/97 */
if (treecase) n=1; /* get LE1 key */
}
if (n <= 0) {
memmove(TRMkey,k1p,n1); /* k1p is less than k2p */
TRMlcase=treecase;
kn=n1;
}
else {
memmove(TRMkey,k2p,n2); /* k2p is less than k1p */
TRMlcase=tc2;
TRMrc=rc2; kn=n2;
}
}
}
*(TRMkey+kn)='\0';
#if SAMTRACE
printf("term - TRMrc=%d TRMlcase=%d,%p,%p TRMkey=%s(%d) TRMliock=%d/%d \n",
TRMrc,TRMlcase,TRMlidxp(0),TRMlidxp(1),TRMkey,strlen(TRMkey),
TRMliock(0),TRMliock(1));
#endif
posthdr1(trmp); /* v3.2 */
#if TRXTRACE
printf("term - TRMrc=%d TRMlcase=%d,%p,%p TRMkey=%s(%d)\n",
TRMrc,TRMlcase,TRMlidxp(0),TRMlidxp(1),TRMkey,strlen(TRMkey));
#endif
if (trmtrace) printf("+++ term(%"_LD_",%s,%s) = %s (%d) [%d:%"_LD_",%d]\n",
itrm,dbnamp,keyp,TRMkey,TRMrc,
TRMlcase,
(TRMlcase)?TRMl2buf.pos:TRMl1buf.pos,
TRMliock(TRMlcase));
#define TRMINVFLUSH 0
#if TRMINVFLUSH /* 950724 */
invflush(DBXname);
#endif
return(itrm_in);
}
#if CICPP
int TRMSTRU :: xtrmread(int treecase,
UCHR **retkeyp)
#else /* CICPP */
int trmread(trmp,treecase,retkeyp) /*
-----------
//seta dbxp;
seta invp;
seta parametros de acordo com treecase;
retorna RCEOF se liv = NEGLIV; 3.1
se trmp->key < primeiro termo, fica com primeiro termo;
busca nos Nos o punt da Folha onde deve estar trmp->key;
procura trmp->key nessa Folha, apontando por retkeyp;
se trmp->key > ultimo termo, aponta para high-value;
retorna RCEOF, RCNORMAL ou RCNEXT ou aborta
*/
TRMSTRU *trmp; /* elemento de vtrmp, com chave ja' setada */
int treecase; /* indice da B*Tree a pesquisar */
UCHR **retkeyp; /* endereco do apontador para a chave encontrada */
#endif /* CICPP */
{
INVMAP *invp;
N0STRU *np;
L0STRU *lp;
UCHR *wp,*w0p;
int idxesiz,idxksiz;
UCHR *kp;
PUNT punt;
int rc,n,n0;
UCHR *lbufp;
int lidxesiz,level,liv,kk;
UCHR *rp,*p;
int lxx;
#if TRRTRACE /* 1 */
UCHR area[LE2+1];
#endif
#if SAMTRACx
int loop;
L1STRU *l1p;
L2STRU *l2p;
UCHR *ap;
#endif
#if CICPP
TRMSTRU *trmp = this;
#endif /* CICPP */
invp=TDBifmap;
#if TRRTRACE
printf("trmread - trmp=%p invp=%p\n",trmp,invp);
#if SAMEL
printf("trmread - name=%s,iflxx=%d,iflxn=%d \n",TDBname,TDBiflxx,invp->iflxn);
#endif
#endif
if (TRMrcase) if ((TRMrcase-1) != treecase) {
#if TRETRACE
printf("trmread - forcing highv for treecase=%d\n",treecase);
#endif
*retkeyp=highv;
return(RCEOF);
}
if (invp->cn[treecase].liv == NEGLIV) { /* v3.1 */
#if TRETRACE
printf("trmread - highv for treecase=%d\n",treecase);
#endif
*retkeyp=highv;
return(RCEOF);
}
if (treecase) {
idxksiz=LE2;
idxesiz=sizeof(N2IDXE);
lbufp=(UCHR *)(&TRMl2buf);
lidxesiz=sizeof(L2IDXE);
}
else {
idxksiz=LE1;
idxesiz=sizeof(N1IDXE);
lbufp=(UCHR *)(&TRMl1buf);
lidxesiz=sizeof(L1IDXE);
}
np=noderead(invp,treecase,0,invp->cn[treecase].posrx);
kp=TRMkey; wp=w0p=(unsigned char *)np->idxchars; /* root node buffer */
#if TRRTRACE
printf("trmread - np->pos=%"_LD_" np=%p wp=%p\n",(LONGX)np->pos,np,wp);
#endif
for (n=n0=np->ock; --n; ) {
wp+=idxesiz; /* next entry */
if (strncmp((CONST char *)kp,(CONST char *)wp,idxksiz) < 0) {
wp-=idxesiz; /* move back */
break;
}
#if TRRTRACE
memmove(area,wp,idxksiz); area[idxksiz]='\0';
printf("trmread - key > %s\n",area);
#endif
}
punt= (treecase) ? ((N2IDXE *)wp)->punt : ((N1IDXE *)wp)->punt;
liv=invp->cn[treecase].liv;
#if TRRTRACE
memmove(area,wp,idxksiz); area[idxksiz]='\0';
printf("trmread - key em %s\n",area);
printf("trmread - treecase=%d em level=%d punt=%"_LD_" liv=%d\n",
treecase,0,(LONGX)punt,liv);
#endif
for (level=1; level<=liv; level++) {
np=noderead(invp,treecase,level,punt);
wp=(unsigned char *)np->idxchars;
for (n=np->ock; --n; ) {
wp+=idxesiz;
if (strncmp((CONST char *)kp,(CONST char *)wp,idxksiz) < 0) {
wp-=idxesiz;
break;
}
#if TRRTRACE
memmove(area,wp,idxksiz); area[idxksiz]='\0';
printf("trmread - key > %s\n",area);
#endif
}
punt= (treecase) ? ((N2IDXE *)wp)->punt : ((N1IDXE *)wp)->punt;
#if TRRTRACE
memmove(area,wp,idxksiz); area[idxksiz]='\0';
printf("trmread - key em %s\n",area);
printf("trmread - treecase=%d em level=%d punt=%"_LD_"\n",
treecase,level,(LONGX)punt);
#endif
}
if (punt >= 0)
fatal("trmread/punt");
punt= -punt;
#if SAMEL
lxx=TDBiflxx;
#else
lxx=0;
#endif
lp=leafread(lbufp,invp,treecase,punt,lxx);
if (lrlrseek) TRMrseek(treecase)=lrlrseek;
if (lrlrsize) TRMrsize(treecase)=lrlrsize;
if ((UCHR *)lp != lbufp) fatal("trmread/leafread/bug/1");
TRMliock(treecase)=0; /* vl.l */
wp=(unsigned char *)lp->idxchars; rc=RCNORMAL;
#if SAMTRACx
if (treecase) {
l2p=(L2STRU *)lbufp; ap=wp;
for (loop=0; loop < l2p->ock; loop++, ap+=lidxesiz)
printf("%d/%d=%.30s=%"_LD_"/%"_LD_"/%"_LD_"=%.30s=%"_LD_"/%"_LD_"/%"_LD_" \n",
loop+1,l2p->ock,
l2p->idx[loop].key,
l2p->idx[loop].info1,
l2p->idx[loop].info2,
#if LIND
l2p->idx[loop].info3info4.info3,
#else
0,
#endif
ap,
((L2IDXE *)ap)->info1,
((L2IDXE *)ap)->info2,
#if LIND
((L2IDXE *)ap)->info3info4.info3);
#else
0L);
#endif
getchar();
}
else {
l1p=(L1STRU *)lbufp; ap=wp;
for (loop=0; loop < l1p->ock; loop++, ap+=lidxesiz)
printf("%d/%d=%.10s=%"_LD_"/%"_LD_"/%"_LD_"=%.10s=%"_LD_"/%"_LD_"/%"_LD_" \n",
loop+1,l1p->ock,
l1p->idx[loop].key,
l1p->idx[loop].info1,
l1p->idx[loop].info2,
#if LIND
l1p->idx[loop].info3info4.info3,
#endif
ap,
((L1IDXE *)ap)->info1,
((L1IDXE *)ap)->info2,
#if LIND
((L1IDXE *)ap)->info3info4.info3);
#else
0L);
#endif
getchar();
}
#endif
kk=strncmp((CONST char *)kp,(CONST char *)wp,idxksiz);
if (kk < 0) {
/* if (strncmp(wp,w0p+idxesiz,idxksiz) < 0) { <== bug == */
if (n0 == 1 || strncmp((CONST char *)wp,(CONST char *)w0p+idxesiz,idxksiz) <= 0) {
rc=RCNEXT;
rp=wp;
}
else {
if (trmtrace) {
printf("trmread - wp='");
for (p=wp,n=idxksiz; n--; p++) printf("%c(%02x)",*p,*p);
printf("'\n");
printf("trmread - w0='");
for (p=w0p+idxesiz,n=idxksiz; n--; p++) printf("%c(%02x)",*p,*p);
printf("'\n");
}
fatal("trmread/leaf/less");
}
}
#if TRRTRACE /* 1 */
memmove(area,wp,idxksiz); area[idxksiz]='\0';
printf("trmread - folha=%s kk=%d l/k=%d/%d\n",area,kk,lidxesiz,idxksiz);
#endif
if (kk > 0) {
TRMliock(treecase)++; /* 18/12/95 */
rp=NULL;
for (n=lp->ock; --n; TRMliock(treecase)++) { /* vl.l */
#if ALPTRACE
memmove(area,wp,idxksiz); area[idxksiz]='\0';
printf("trmread - folxx=%s kk=%d l/k=%d/%d\n",area,kk,lidxesiz,idxksiz);
#endif
wp+=lidxesiz;
#if ALPTRACE
memmove(area,wp,idxksiz); area[idxksiz]='\0';
printf("trmread - folyy=%s kk=%d l/k=%d/%d\n",area,kk,lidxesiz,idxksiz);
#endif
#if SAMTRACE
memmove(area,wp,idxksiz); area[idxksiz]='\0';
printf("trmread - wp=%s kk=%d [%d]\n",area,kk,TRMliock(treecase));
#endif
if (*wp <= MINLCHR) { /* vm.m */
wp[idxksiz]='\0';
printf("*** wp=%s\n",wp);
fatal("trmread/check/wp");
}
kk=strncmp((CONST char *)kp,(CONST char *)wp,idxksiz);
#if TRRTRACE /* 1 */
memmove(area,wp,idxksiz); area[idxksiz]='\0';
printf("trmread - wp=%s kk=%d [%d]\n",area,kk,TRMliock(treecase));
#endif
if (kk == 0) {
rp=wp;
rc=RCNORMAL;
break;
}
else
if (kk < 0) {
rp=wp;
rc=RCNEXT;
break;
}
}
if (!rp)
if (lp->ps) {
lp=leafread(lbufp,invp,treecase,lp->ps,lxx);
if (lrlrseek) TRMrseek(treecase)=lrlrseek;
if (lrlrsize) TRMrsize(treecase)=lrlrsize;
if ((UCHR *)lp != lbufp) fatal("trmread/leafread/bug/2");
#if SAMTRACE
if (treecase) {
l2p=(L2STRU *)lbufp;
for (loop=0; loop < l2p->ock; loop++)
printf("%d/%d=%.30s=%"_LD_"/%"_LD_"/%"_LD_"\n",loop+1,l2p->ock,
l2p->idx[loop].key,
l2p->idx[loop].info1,
l2p->idx[loop].info2,
#if SAMTRACE
l2p->idx[loop].info3info4.info3);
#endif
getchar();
}
else {
l1p=(L1STRU *)lbufp;
for (loop=0; loop < l1p->ock; loop++)
printf("%d/%d=%.10s=%"_LD_"/%"_LD_"/%"_LD_"\n",loop+1,l1p->ock,
l1p->idx[loop].key,
l1p->idx[loop].info1,
l1p->idx[loop].info2,
#if SAMTRACE
l1p->idx[loop].info3info4.info3);
#endif
getchar();
}
#endif
TRMliock(treecase)=0; /* vl.l */
rp=(unsigned char *)lp->idxchars;
rc=RCNEXT;
}
else {
rp=highv;
rc=RCEOF;
}
}
else
rp=wp;
*retkeyp=rp;
#if TRRTRACE
memmove(area,*retkeyp,idxksiz); area[idxksiz]='\0';
printf("trmread - rc=%d *retkeyp=%s[%d]\n",rc,area,TRMliock(treecase));
#endif
return(rc);
}
/* ----------------------------- nxt.c ------------------------------ */
#if CICPP
LONGX TRMSTRU :: xnxterm(void)
#else /* CICPP */
LONGX nxterm(itrm) /*
-----------
abenda se vtrmp ou registro itrm nao inicializado;
abenda se nenhuma folha foi carregada em term() anterior;
se necessario, "incrementa" chave e carrega a da outra;
compara e fica com a menor;
move termo para trmp->trmkey;
seta trmp->trmrc com RCEOF ou RCNORMAL;
seta controles para chamadas subsequentes;
chama posthdr1();
retorna itrm
*/
LONGX itrm; /* indice de vtrmp, para store */
#endif /* CICPP */
{
TRMSTRU *trmp;
UCHR *keyp;
int rc,lcase,len;
UCHR *l1idxp,*l2idxp;
int n,kn;
UCHR *p,*k1p,*k2p,*kp;
PUNT ps;
int lxx;
#if CICPP
trmp = this;
LONGX itrm = NO_ITRM;
#else /* CICPP */
if (!ntrms)
fatal("nxterm/ntrms");
trmp=vtrmp[itrm];
if (!trmp)
fatal("nxterm/trmp");
#endif /* CICPP */
rc=TRMrc; keyp=TRMkey;
if (!*keyp)
fatal("nxterm/key");
#if TRMTRACE
printf("nxterm - itrm=%"_LD_" trmp=%p TRMrc=%d TRMkey=%s\n",itrm,trmp,rc,keyp);
#endif
if (rc == RCEOF)
return(itrm);
l1idxp=TRMlidxp(0); l2idxp=TRMlidxp(1);
lcase=TRMlcase; len=strlen((CONST char *)keyp);
if (len) /* 06/04/89 */
for (p=keyp+len-1; len; --p)
if (*p != ' ')
break;
else
len--;
else
fatal("nxterm/len");
if (!l2idxp) { /* 2nd tree not used in last term() call */
if (!l1idxp)
fatal("nxterm/l1idxp");
if (lcase != 0)
fatal("nxterm/l1case");
if (len < LE2) {
p=keyp+len; *p=0x01;
for (n=LE2-len; n--; )
*++p=' ';
}
else {
p=keyp+len-1; (*p)++;
}
#if TRXTRACE
printf("nxterm - calling trmread(1) - len=%d key='",len);
for (p=keyp,n=LE2+1; n--; p++) printf("%c(%02x)",*p,*p);
printf("'\n");
#endif
trmread(trmp,1,&k2p);
}
else
k2p=l2idxp;
if (!l1idxp) { /* 1st tree not used in last term() call */
if (!l2idxp)
fatal("nxterm/l2idxp");
if (lcase != 1)
fatal("nxterm/l2case");
/* if (len < LE1) {
p=keyp+len; *p=0x01;
for (n=LE1-len; n--; )
*++p=' ';
}
else {
p=keyp+len-1; (*p)++;
} */
if (len > LE1) /* 06/04/89 */
len=LE1;
p=keyp+len-1; (*p)++; *++p='\0';
#if TRXTRACE
printf("nxterm - calling trmread(0) - len=%d key='",len);
for (p=keyp,n=LE1+1; n--; p++) printf("%c(%02x)",*p,*p);
printf("'\n");
#endif
trmread(trmp,0,&k1p);
}
else
k1p=l1idxp;
#if TRXTRACE /* 1 */
printf("nxterm - 1. lcase=%d k1p=",lcase);
for (p=k1p,n=LE1; n--; p++) printf("%c",*p);
printf("[%d] k2p=",TRMliock(0));
for (p=k2p,n=LE2; n--; p++) printf("%c",*p);
printf("[%d]\n",TRMliock(1));
#endif
#if SAMEL
lxx=TDBiflxx;
#else
lxx=0;
#endif
switch (lcase) {
case 0: if (*k1p == *highv) /* eof */
break;
if (*k1p) { /* active */
k1p+=sizeof(L1IDXE);
TRMliock(0)++; /* vl.l */
}
if (!*k1p) { /* last or inactive */
ps=TRMl1buf.ps;
if (ps) { /* next page ptr */
leafread((UCHR *)&TRMl1buf,TDBifmap,0,ps,lxx);
if (lrlrseek) TRMrseek(0)=lrlrseek;
if (lrlrsize) TRMrsize(0)=lrlrsize;
k1p=TRMl1buf.idx[0].key;
TRMliock(0)=0; /* vl.l */
}
}
if (!*k1p) /* wood never del */
k1p=highv;
break;
case 1: if (*k2p == *highv) /* eof */
break;
if (*k2p) { /* active */
k2p+=sizeof(L2IDXE);
TRMliock(1)++; /* vl.l */
}
if (!*k2p) { /* last or inactive */
ps=TRMl2buf.ps;
if (ps) { /* next page ptr */
leafread((UCHR *)&TRMl2buf,TDBifmap,1,ps,lxx);
if (lrlrseek) TRMrseek(1)=lrlrseek;
if (lrlrsize) TRMrsize(1)=lrlrsize;
k2p=TRMl2buf.idx[0].key;
TRMliock(1)=0; /* vl.l */
}
}
if (!*k2p) /* wood never del */
k2p=highv;
break;
default: fatal("nxterm/lcase");
}
#if TRXTRACE /* 1 */
printf("nxterm - 2. lcase=%d k1p=",lcase);
for (p=k1p,n=LE1; n--; p++) printf("%c",*p);
printf("[%d] k2p=",TRMliock(0));
for (p=k2p,n=LE2; n--; p++) printf("%c",*p);
printf("[%d]\n",TRMliock(1));
#endif
n=strncmp((CONST char *)k1p,(CONST char *)k2p,LE1); /* min */
if (n <= 0) {
kp=k1p; /* k1p is less than k2p */
kn=LE1; lcase=0;
}
else {
kp=k2p; /* k2p is less than k1p */
kn=LE2; lcase=1;
}
memmove(TRMkey,kp,kn); *(TRMkey+kn)='\0';
TRMrc = (*TRMkey == *highv) ? RCEOF : RCNORMAL;
TRMlcase=lcase;
TRMlidxp(0)=k1p;
TRMlidxp(1)=k2p;
posthdr1(trmp); /* v3.2 */
#if TRXTRACE
printf("nxterm - TRMrc=%d TRMlcase=%d,%p,%p TRMkey=%s(%d)\n",
TRMrc,TRMlcase,TRMlidxp(0),TRMlidxp(1),TRMkey,strlen(TRMkey));
#endif
return(itrm);
}
/* ----------------------------- citrmh.c --------------------------- */
/* ----------------------------- pst.c ------------------------------ */
#if CICPP
void TRMSTRU :: xposthdr1(void)
#else /* CICPP */
void posthdr1(trmp) /*
-------------
zera trmp->trmifhdr/ifseg;
zera trmp->trmpost/pmfn/ptag/pocc/pcnt;
inicializa trmp->pcurr/pchar/pleft/pcblk/pcpos;
retorna se trmp->trmifbuf nao estiver alocado;
retorna se RCEOF;
le.ifp block, se necessario;
carrega trmp->trmifhdr;
duplica em trmp->trmifseg;
aponta primeiro posting por trmp->trmpchar;
seta trmp->trmpcblk com o .ifp blk do posting1;
seta trmp->trmpcpos com o offset do posting1;
sempre zera trmp->trmpost;
sempre seta trmp->trmpleft com trmp->trmifhdr.ifsegp
*/
TRMSTRU *trmp; /* elemento de vtrmp, apos nx/term(), com IFBSIZ */
#endif /* CICPP */
{
INFX info1;
INFO info2;
#if LIND
INFX info3;
INFX bytes;
#endif
UCHR *p,*inp;
#if !LIND
int n;
INFO *hdrp,*segp,*hp;
#endif
#if CICPP
TRMSTRU *trmp = this;
#endif /* CICPP */
#if TRPTRACE
printf("posthdr1 - trmp=%p %s(%d) TRMrc=%d\n",trmp,TRMkey,TRMlcase,TRMrc);
#endif
#if !LIND
hdrp=(INFO *)&TRMifhdr;
segp=(INFO *)&TRMifseg;
#if TRPTRACE
printf("posthdr1 - hdrp=%p segp=%p IFHDRINFOS=%d\n",hdrp,segp,IFHDRINFOS);
#endif
for (n=IFHDRINFOS; n--; )
*hdrp++= *segp++=0;
#endif
TRMpost=TRMpmfn=0;
TRMptag=TRMpocc=TRMpcnt=0;
TRMpcurr=TRMpchar=NULL; TRMpleft=0;
#if !LIND
TRMpcblk=NULL; TRMpcpos=IFMAXTIV;
#endif
if (TRMrc == RCEOF)
return;
#if SAMTRACE
printf("hdr1 - TRMrc=%d TRMlcase=%d,%p,%p TRMkey=%s(%d) lxx=%d\n",
TRMrc,TRMlcase,TRMlidxp(0),TRMlidxp(1),TRMkey,strlen(TRMkey),TDBiflxx);
#endif
if (TRMlcase) { /* {} yes */
info1=((L2IDXE *)TRMlidxp(1))->info1;
info2=((L2IDXE *)TRMlidxp(1))->info2;
#if LIND
info3=((L2IDXE *)TRMlidxp(1))->info3info4.info3;
#endif
}
else {
info1=((L1IDXE *)TRMlidxp(0))->info1;
info2=((L1IDXE *)TRMlidxp(0))->info2;
#if LIND
info3=((L1IDXE *)TRMlidxp(0))->info3info4.info3;
#endif
}
#if SAMTRACE
printf("posthdr1 - info1=%"P_OFF_T" info2=%"_LD_" info3=%"P_OFF_T"\n",(LONG_LONG)info1,info2,(LONG_LONG)info3);
#endif
#if LIND
TRMyaddr=info1;
TRMypsts=info2;
if (info3 < 0) {
TRMycase=BITSTRING;
TRMysize=1; /* one byte */
TRMydocs=info2;
TRMydisk= -info3;
}