static CONDITION_HANDLER(dir_ch)
{
int dummy1, dummy2;
error_def(ERR_ASSERT);
error_def(ERR_GTMASSERT);
error_def(ERR_GTMCHECK);
error_def(ERR_STACKOFLOW);
START_CH;
if (DUMP)
{
NEXTCH;
}
op_kill(zsrch_dir1);
op_kill(zsrch_dir2);
op_kill(ind_var);
ind_var = op_putindx(VARLSTCNT(2) zsrch_var, &ind_val);
ind_var->v.mvtype = MV_STR;
ind_var->v.str.len = 0;
UNWIND(dummy1, dummy2);
}
int op_fnzsearch (mval *file, mint indx, mval *ret)
{
struct stat statbuf;
int stat_res;
parse_blk pblk;
plength *plen, pret;
char buf1[MAX_FBUFF + 1]; /* buffer to hold translated name */
mval sub;
mstr tn;
lv_val *ind_tmp;
error_def(ERR_INVSTRLEN);
MV_FORCE_STR(file);
if (file->str.len > MAX_FBUFF)
rts_error(VARLSTCNT(4) ERR_INVSTRLEN, 2, file->str.len, MAX_FBUFF);
MV_FORCE_MVAL(&ind_val, indx);
ind_var = op_srchindx(VARLSTCNT(2) zsrch_var, &ind_val);
if (ind_var)
{
assert(ind_var->v.mvtype & MV_STR);
if (file->str.len != ind_var->v.str.len || memcmp(file->str.addr, ind_var->v.str.addr, file->str.len))
{
op_kill(ind_var);
ind_var = (lv_val*) 0;
}
}
if (ind_var)
{
for (;;)
{
pret.p.pint = pop_top(ind_var, ret); /* get next element off the top */
if (!ret->str.len)
break;
memcpy(buf1, ret->str.addr, ret->str.len);
buf1[ret->str.len] = 0;
STAT_FILE(buf1, &statbuf, stat_res);
if (-1 == stat_res)
{
if (errno == ENOENT)
continue;
rts_error(VARLSTCNT(1) errno);
}
break;
}
} else
{
memset(&pblk, 0, sizeof(pblk));
pblk.buffer = buf1;
pblk.buff_size = MAX_FBUFF;
if (!(parse_file(&file->str, &pblk) & 1))
{
ret->mvtype = MV_STR;
ret->str.len = 0;
} else
{
assert(!ind_var);
buf1[pblk.b_esl] = 0;
/* establish new search context */
ind_var = op_putindx(VARLSTCNT(2) zsrch_var, &ind_val);
ind_var->v = *file; /* zsrch_var(indx)=original spec */
if (!(pblk.fnb & F_WILD))
{
sub.mvtype = MV_STR;
sub.str.len = pblk.b_esl;
sub.str.addr = buf1;
s2pool(&sub.str);
ind_tmp = op_putindx(VARLSTCNT(2) ind_var, &sub);
ind_tmp->v.mvtype = MV_STR; ind_tmp->v.str.len = 0;
plen = (plength *)&ind_tmp->v.m[1];
plen->p.pblk.b_esl = pblk.b_esl;
plen->p.pblk.b_dir = pblk.b_dir;
plen->p.pblk.b_name = pblk.b_name;
plen->p.pblk.b_ext = pblk.b_ext;
} else
dir_srch(&pblk);
for (;;)
{
pret.p.pint = pop_top(ind_var, ret); /* get next element off the top */
if (!ret->str.len)
break;
memcpy(buf1, ret->str.addr, ret->str.len);
buf1[ret->str.len] = 0;
STAT_FILE(buf1, &statbuf, stat_res);
if (-1 == stat_res)
{
if (errno == ENOENT)
continue;
rts_error(VARLSTCNT(1) errno);
}
break;
}
}
}
assert(pret.p.pblk.b_esl == ret->str.len);
return pret.p.pint;
}
void dir_srch (parse_blk *pfil)
{
struct stat statbuf;
int stat_res;
lv_val *dir1, *dir2, *tmp;
mstr tn;
short p2_len;
char filb[MAX_FBUFF + 1], patb[sizeof(ptstr)], *c, *lastd, *top, *p2, *c1, ch;
mval pat_mval, sub, compare;
bool wildname, seen_wd;
struct dirent *dent;
DIR *dp;
plength *plen;
int closedir_res;
op_kill(zsrch_dir1);
op_kill(zsrch_dir2);
if (!pfil->b_name)
return; /* nothing to search for */
ESTABLISH(dir_ch);
pat_mval.mvtype = MV_STR;
pat_mval.str.addr = patb; /* patb should be sizeof(ptstr.buff) but instead is sizeof(ptstr) since the C compiler
* complains about the former and the latter is just 4 bytes more */
pat_mval.str.len = 0;
sub.mvtype = MV_STR;
sub.str.len = 0;
compare.mvtype = MV_STR;
compare.str.len = 0;
wildname = (pfil->fnb & F_WILD_NAME) != 0;
dir1 = zsrch_dir1;
dir2 = zsrch_dir2;
if (pfil->fnb & F_WILD_DIR)
{
seen_wd = FALSE;
for (c = pfil->l_dir, lastd = c, top = c + pfil->b_dir; c < top;)
{
ch = *c++;
if (ch == '/') /* note the start of each directory segment */
{
if (seen_wd)
break;
lastd = c;
}
if (ch == '?' || ch == '*')
seen_wd = TRUE;
}
assert(c <= top);
sub.str.addr = pfil->l_dir;
sub.str.len = lastd - sub.str.addr;
tmp = op_putindx(VARLSTCNT(2) dir1, &sub);
tmp->v.mvtype = MV_STR; tmp->v.str.len = 0;
for(;;)
{
tn.addr = lastd; /* wildcard segment */
tn.len = c - lastd - 1;
lastd = c;
genpat(&tn, &pat_mval);
seen_wd = FALSE;
p2 = c - 1;
for (; c < top;)
{
ch = *c++;
if (ch == '/') /* note the start of each directory segment */
{
if (seen_wd)
break;
lastd = c;
}
if (ch == '?' || ch == '*')
seen_wd = TRUE;
}
p2_len = lastd - p2; /* length of non-wild segment after wild section */
for (;;)
{
pop_top(dir1, &sub); /* get next item off the top */
if (!sub.str.len)
break;
memcpy(filb, sub.str.addr, sub.str.len);
filb[sub.str.len] = 0;
sub.str.addr = filb;
dp = OPENDIR(filb);
if (!dp)
continue;
while(READDIR(dp, dent))
{
compare.str.addr = &dent->d_name[0];
compare.str.len = strlen(&dent->d_name[0]);
assert(compare.str.len);
if ( dent->d_name[0] == '.'
&& (compare.str.len == 1 || (compare.str.len == 2 && dent->d_name[1] == '.')) )
{
continue; /* don't want to read . and .. */
}
if (compare.str.len + sub.str.len + p2_len > MAX_FBUFF)
continue;
if (do_pattern(&compare, &pat_mval))
{ /* got a hit */
if (stringpool.free + compare.str.len + sub.str.len + p2_len + 1 > stringpool.top)
stp_gcol(compare.str.len + sub.str.len + p2_len + 1);
/* concatenate directory and name */
c1 = (char *)stringpool.free;
tn = sub.str;
s2pool(&tn);
tn = compare.str;
s2pool(&tn);
tn.addr = p2;
tn.len = p2_len;
s2pool(&tn);
*stringpool.free++ = 0;
compare.str.addr = c1;
compare.str.len += sub.str.len + p2_len;
STAT_FILE(compare.str.addr, &statbuf, stat_res);
if (-1 == stat_res)
continue;
if (!(statbuf.st_mode & S_IFDIR))
continue;
/* put in results tree */
tmp = op_putindx(VARLSTCNT(2) dir2, &compare);
tmp->v.mvtype = MV_STR;
tmp->v.str.len = 0;
}
}
CLOSEDIR(dp, closedir_res);
}
tmp = dir1; dir1 = dir2; dir2 = tmp;
if (c >= top)
break;
}
} else
{
sub.str.addr = pfil->l_dir;
sub.str.len = pfil->b_dir;
tmp = op_putindx(VARLSTCNT(2) dir1, &sub);
tmp->v.mvtype = MV_STR; tmp->v.str.len = 0;
}
if (wildname)
{
tn.addr = pfil->l_name;
tn.len = pfil->b_name + pfil->b_ext;
genpat(&tn, &pat_mval);
}
for (;;)
{
pop_top(dir1, &sub); /* get next item off the top */
if (!sub.str.len)
break;
if (wildname)
{
memcpy(filb, sub.str.addr, sub.str.len);
filb[sub.str.len] = 0;
sub.str.addr = filb;
dp = OPENDIR(filb);
if (!dp)
continue;
while(READDIR(dp, dent))
{
compare.str.addr = &dent->d_name[0];
compare.str.len = strlen(&dent->d_name[0]);
if ( dent->d_name[0] == '.'
&& (compare.str.len == 1 || (compare.str.len == 2 && dent->d_name[1] == '.')))
{
continue; /* don't want to read . and .. */
}
if (compare.str.len + sub.str.len > MAX_FBUFF)
continue;
if (do_pattern(&compare, &pat_mval))
{ /* got a hit */
if (stringpool.free + compare.str.len + sub.str.len > stringpool.top)
stp_gcol(compare.str.len + sub.str.len);
/* concatenate directory and name */
c = (char *)stringpool.free;
tn = sub.str;
s2pool(&tn);
tn = compare.str;
s2pool(&tn);
compare.str.addr = c;
compare.str.len += sub.str.len;
/* put in results tree */
tmp = op_putindx(VARLSTCNT(2) ind_var, &compare);
tmp->v.mvtype = MV_STR;
tmp->v.str.len = 0;
plen = (plength *)&tmp->v.m[1];
plen->p.pblk.b_esl = compare.str.len;
plen->p.pblk.b_dir = sub.str.len;
for (c = &compare.str.addr[sub.str.len], c1 = top = &compare.str.addr[compare.str.len];
c < top;
)
{
if (*c++ != '.')
break;
}
for (; c < top;)
{
if (*c++ == '.')
c1 = c - 1;
}
plen->p.pblk.b_ext = top - c1;
plen->p.pblk.b_name = plen->p.pblk.b_esl - plen->p.pblk.b_dir - plen->p.pblk.b_ext;
}
}
CLOSEDIR(dp, closedir_res);
} else
{
assert(pfil->fnb & F_WILD_DIR);
compare.str.addr = pfil->l_name;
compare.str.len = pfil->b_name + pfil->b_ext;
if (compare.str.len + sub.str.len > MAX_FBUFF)
continue;
memcpy(filb, sub.str.addr, sub.str.len);
filb[sub.str.len] = 0;
sub.str.addr = filb;
if (stringpool.free + compare.str.len + sub.str.len > stringpool.top)
stp_gcol(compare.str.len + sub.str.len);
/* concatenate directory and name */
c1 = (char *)stringpool.free;
tn = sub.str;
s2pool(&tn);
tn = compare.str;
s2pool(&tn);
compare.str.addr = c1;
compare.str.len += sub.str.len;
/* put in results tree */
tmp = op_putindx(VARLSTCNT(2) ind_var, &compare);
tmp->v.mvtype = MV_STR; tmp->v.str.len = 0;
plen = (plength *)&tmp->v.m[1];
plen->p.pblk.b_esl = compare.str.len;
plen->p.pblk.b_dir = sub.str.len;
plen->p.pblk.b_name = pfil->b_name;
plen->p.pblk.b_ext = pfil->b_ext;
}
}
op_kill(zsrch_dir1);
op_kill(zsrch_dir2);
REVERT;
}
int op_fnzsearch(mval *file, mint indx, mval *ret)
{
struct stat statbuf;
int stat_res;
parse_blk pblk;
plength *plen, pret;
char buf1[MAX_FBUFF + 1]; /* buffer to hold translated name */
mval sub;
mstr tn;
lv_val *ind_tmp;
DCL_THREADGBL_ACCESS;
SETUP_THREADGBL_ACCESS;
ESTABLISH_RET(fnzsrch_ch, -1);
TREF(fnzsearch_nullsubs_sav) = TREF(lv_null_subs);
TREF(lv_null_subs) = LVNULLSUBS_OK; /* $ZSearch processing depends on this */
MV_FORCE_STR(file);
if (file->str.len > MAX_FBUFF)
rts_error(VARLSTCNT(4) ERR_INVSTRLEN, 2, file->str.len, MAX_FBUFF);
MV_FORCE_MVAL(((mval *)TADR(fnzsearch_sub_mval)), indx);
TREF(fnzsearch_lv_vars) = op_srchindx(VARLSTCNT(2) TREF(zsearch_var), (mval *)TADR(fnzsearch_sub_mval));
if (TREF(fnzsearch_lv_vars))
{
assert((TREF(fnzsearch_lv_vars))->v.mvtype & MV_STR);
if ((file->str.len != (TREF(fnzsearch_lv_vars))->v.str.len)
|| memcmp(file->str.addr, (TREF(fnzsearch_lv_vars))->v.str.addr, file->str.len))
{
op_kill(TREF(fnzsearch_lv_vars));
TREF(fnzsearch_lv_vars) = NULL;
}
}
if (TREF(fnzsearch_lv_vars))
{
for (;;)
{
pret.p.pint = pop_top(TREF(fnzsearch_lv_vars), ret); /* get next element off the top */
if (!ret->str.len)
break;
memcpy(buf1, ret->str.addr, ret->str.len);
buf1[ret->str.len] = 0;
STAT_FILE(buf1, &statbuf, stat_res);
if (-1 == stat_res)
{
if (errno == ENOENT)
continue;
rts_error(VARLSTCNT(1) errno);
}
break;
}
} else
{
memset(&pblk, 0, SIZEOF(pblk));
pblk.buffer = buf1;
pblk.buff_size = MAX_FBUFF;
if (!(parse_file(&file->str, &pblk) & 1))
{
ret->mvtype = MV_STR;
ret->str.len = 0;
} else
{
assert(!TREF(fnzsearch_lv_vars));
buf1[pblk.b_esl] = 0;
/* establish new search context */
TREF(fnzsearch_lv_vars) = op_putindx(VARLSTCNT(2) TREF(zsearch_var), TADR(fnzsearch_sub_mval));
(TREF(fnzsearch_lv_vars))->v = *file; /* zsearch_var(indx)=original spec */
if (!(pblk.fnb & F_WILD))
{
sub.mvtype = MV_STR;
sub.str.len = pblk.b_esl;
sub.str.addr = buf1;
s2pool(&sub.str);
ind_tmp = op_putindx(VARLSTCNT(2) TREF(fnzsearch_lv_vars), &sub);
ind_tmp->v.mvtype = MV_STR; ind_tmp->v.str.len = 0;
plen = (plength *)&ind_tmp->v.m[1];
plen->p.pblk.b_esl = pblk.b_esl;
plen->p.pblk.b_dir = pblk.b_dir;
plen->p.pblk.b_name = pblk.b_name;
plen->p.pblk.b_ext = pblk.b_ext;
} else
dir_srch(&pblk);
for (;;)
{
pret.p.pint = pop_top(TREF(fnzsearch_lv_vars), ret); /* get next element off the top */
if (!ret->str.len)
break;
memcpy(buf1, ret->str.addr, ret->str.len);
buf1[ret->str.len] = 0;
STAT_FILE(buf1, &statbuf, stat_res);
if (-1 == stat_res)
{
if (errno == ENOENT)
continue;
rts_error(VARLSTCNT(1) errno);
}
break;
}
}
}
assert((0 == ret->str.len) || (pret.p.pblk.b_esl == ret->str.len));
TREF(lv_null_subs) = TREF(fnzsearch_nullsubs_sav);
REVERT;
return pret.p.pint;
}
void dir_srch(parse_blk *pfil)
{
struct stat statbuf;
int stat_res;
lv_val *dir1, *dir2, *tmp;
mstr tn;
short p2_len;
char filb[MAX_FBUFF + 1], patb[SIZEOF(ptstr)], *c, *lastd, *top, *p2, *c1, ch;
mval pat_mval, sub, compare;
boolean_t wildname, seen_wd;
struct dirent *dent;
DIR *dp;
plength *plen;
int closedir_res;
DCL_THREADGBL_ACCESS;
SETUP_THREADGBL_ACCESS;
op_kill(TREF(zsearch_dir1));
op_kill(TREF(zsearch_dir2));
if (!pfil->b_name)
return; /* nothing to search for */
ESTABLISH(dir_ch);
pat_mval.mvtype = MV_STR;
pat_mval.str.addr = patb; /* patb should be SIZEOF(ptstr.buff) but instead is SIZEOF(ptstr) since the C compiler
* complains about the former and the latter is just 4 bytes more */
pat_mval.str.len = 0;
sub.mvtype = MV_STR;
sub.str.len = 0;
compare.mvtype = MV_STR;
compare.str.len = 0;
wildname = (pfil->fnb & F_WILD_NAME) != 0;
dir1 = TREF(zsearch_dir1);
dir2 = TREF(zsearch_dir2);
if (pfil->fnb & F_WILD_DIR)
{
seen_wd = FALSE;
for (c = pfil->l_dir, lastd = c, top = c + pfil->b_dir; c < top;)
{
ch = *c++;
if (ch == '/') /* note the start of each directory segment */
{
if (seen_wd)
break;
lastd = c;
}
if (ch == '?' || ch == '*')
seen_wd = TRUE;
}
assert(c <= top);
sub.str.addr = pfil->l_dir;
sub.str.len = INTCAST(lastd - sub.str.addr);
tmp = op_putindx(VARLSTCNT(2) dir1, &sub);
tmp->v.mvtype = MV_STR; tmp->v.str.len = 0;
for (;;)
{
tn.addr = lastd; /* wildcard segment */
tn.len = INTCAST(c - lastd - 1);
lastd = c;
genpat(&tn, &pat_mval);
seen_wd = FALSE;
p2 = c - 1;
for (; c < top;)
{
ch = *c++;
if (ch == '/') /* note the start of each directory segment */
{
if (seen_wd)
break;
lastd = c;
}
if (ch == '?' || ch == '*')
seen_wd = TRUE;
}
p2_len = lastd - p2; /* length of non-wild segment after wild section */
for (;;)
{
pop_top(dir1, &sub); /* get next item off the top */
if (!sub.str.len)
break;
memcpy(filb, sub.str.addr, sub.str.len);
filb[sub.str.len] = 0;
sub.str.addr = filb;
dp = OPENDIR(filb);
if (!dp)
continue;
while (READDIR(dp, dent))
{
compare.str.addr = &dent->d_name[0];
compare.str.len = STRLEN(&dent->d_name[0]);
UNICODE_ONLY(
if (gtm_utf8_mode)
compare.mvtype &= ~MV_UTF_LEN; /* to force "char_len" to be recomputed
* in do_pattern */
)
assert(compare.str.len);
if (('.' == dent->d_name[0])
&& ((1 == compare.str.len) || ((2 == compare.str.len) && ('.' == dent->d_name[1]))))
continue; /* don't want to read . and .. */
if (compare.str.len + sub.str.len + p2_len > MAX_FBUFF)
continue;
if (do_pattern(&compare, &pat_mval))
{ /* got a hit */
ENSURE_STP_FREE_SPACE(compare.str.len + sub.str.len + p2_len + 1);
/* concatenate directory and name */
c1 = (char *)stringpool.free;
tn = sub.str;
s2pool(&tn);
tn = compare.str;
s2pool(&tn);
tn.addr = p2;
tn.len = p2_len;
s2pool(&tn);
*stringpool.free++ = 0;
compare.str.addr = c1;
compare.str.len += sub.str.len + p2_len;
STAT_FILE(compare.str.addr, &statbuf, stat_res);
if (-1 == stat_res)
continue;
if (!(statbuf.st_mode & S_IFDIR))
continue;
/* put in results tree */
tmp = op_putindx(VARLSTCNT(2) dir2, &compare);
tmp->v.mvtype = MV_STR;
tmp->v.str.len = 0;
}
}
CLOSEDIR(dp, closedir_res);
}
tmp = dir1; dir1 = dir2; dir2 = tmp;
if (c >= top)
break;
}
void op_merge(void)
{
boolean_t found, check_for_null_subs, is_base_var;
lv_val *dst_lv;
mval *mkey, *value, *subsc;
int org_glvn1_keysz, org_glvn2_keysz, delta2, dollardata_src, dollardata_dst, sbs_depth;
unsigned char *ptr, *ptr2;
unsigned char buff[MAX_ZWR_KEY_SZ];
unsigned char nullcoll_src, nullcoll_dst;
zshow_out output;
DCL_THREADGBL_ACCESS;
SETUP_THREADGBL_ACCESS;
assert(MAX_STRLEN >= MAX_ZWR_KEY_SZ);
assert ((merge_args == (MARG1_LCL | MARG2_LCL)) ||
(merge_args == (MARG1_LCL | MARG2_GBL)) ||
(merge_args == (MARG1_GBL | MARG2_LCL)) ||
(merge_args == (MARG1_GBL | MARG2_GBL)));
assert(!lvzwrite_block || 0 == lvzwrite_block->curr_subsc);
/* Need to protect value from stpgcol */
PUSH_MV_STENT(MVST_MVAL);
value = &mv_chain->mv_st_cont.mvs_mval;
value->mvtype = 0; /* initialize mval in the M-stack in case stp_gcol gets called before value gets initialized below */
if (MARG2_IS_GBL(merge_args))
{ /* Need to protect mkey returned from gvcst_queryget from stpgcol */
PUSH_MV_STENT(MVST_MVAL);
mkey = &mv_chain->mv_st_cont.mvs_mval;
mkey->mvtype = 0; /* initialize mval in M-stack in case stp_gcol gets called before mkey gets initialized below */
gvname_env_restore(mglvnp->gblp[IND2]);
/* now $DATA will be done for gvn2. op_gvdata input parameters are set in the form of some GBLREF */
op_gvdata(value);
dollardata_src = MV_FORCE_INT(value);
if (0 == dollardata_src)
{ /* nothing in source global */
UNDO_ACTIVE_LV;
POP_MV_STENT(); /* value */
POP_MV_STENT(); /* mkey */
if (MARG1_IS_GBL(merge_args))
gvname_env_restore(mglvnp->gblp[IND1]); /* store destination as naked indicator in gv_currkey */
merge_args = 0; /* Must reset to zero to reuse the Global */
return;
}
if (NULL == TREF(gv_mergekey2))
{ /* We need to initialize gvn2 (right hand side). */
GVKEY_INIT(TREF(gv_mergekey2), DBKEYSIZE(MAX_KEY_SZ));
}
org_glvn1_keysz = mglvnp->gblp[IND1]->s_gv_currkey->end + 1;
org_glvn2_keysz = gv_currkey->end + 1;
(TREF(gv_mergekey2))->end = gv_currkey->end;
(TREF(gv_mergekey2))->prev = gv_currkey->prev;
memcpy((TREF(gv_mergekey2))->base, gv_currkey->base, gv_currkey->end + 1);
if (MARG1_IS_GBL(merge_args))
{ /*==================== MERGE ^gvn1=^gvn2 =====================*/
if (mglvnp->gblp[IND2]->s_gv_target->nct != mglvnp->gblp[IND1]->s_gv_target->nct)
rts_error(VARLSTCNT(1) ERR_NCTCOLLDIFF);
/* if self merge then NOOP*/
if (!merge_desc_check()) /* will not proceed if one is descendant of another */
{
gvname_env_restore(mglvnp->gblp[IND1]); /* store destination as naked indicator in gv_currkey */
POP_MV_STENT(); /* value */
merge_args = 0; /* Must reset to zero to reuse the Global */
return;
}
nullcoll_src = mglvnp->gblp[IND2]->s_gv_cur_region->std_null_coll;
nullcoll_dst = mglvnp->gblp[IND1]->s_gv_cur_region->std_null_coll;
if (1 == dollardata_src || 11 == dollardata_src)
{
found = op_gvget(value); /* value of ^glvn2 */
if (found)
{ /* SET ^gvn1=^gvn2 */
gvname_env_restore(mglvnp->gblp[IND1]);
op_gvput(value);
/* Note: If ^gvn1's null_sub=ALLOWEXISTING and say ^gvn1("")=^gvn,
* this will give NULL_SUBC error
*/
}
}
check_for_null_subs = (NEVER != mglvnp->gblp[IND2]->s_gv_cur_region->null_subs) &&
(ALWAYS != mglvnp->gblp[IND1]->s_gv_cur_region->null_subs);
/* Traverse descendant of ^gvn2 and copy into ^gvn1 */
for (; ;)
{
if (outofband)
{
gvname_env_restore(mglvnp->gblp[IND1]); /* naked indicator is restored into gv_currkey */
outofband_action(FALSE);
}
/* Restore last key under ^gvn2 we worked */
gvname_env_restore(mglvnp->gblp[IND2]);
assert(0 == gv_currkey->base[gv_currkey->end - 1] && 0 == gv_currkey->base[gv_currkey->end]);
/* following is an attempt to find immidiate right sibling */
gv_currkey->base[gv_currkey->end] = 1;
gv_currkey->base[gv_currkey->end + 1] = 0;
gv_currkey->base[gv_currkey->end + 2] = 0;
gv_currkey->end += 2;
/* Do atomic $QUERY and $GET of current glvn2:
* mkey is a mstr which contains $QUERY result in database format (So no conversion necessary)
* value is a mstr which contains $GET result
*/
if (!op_gvqueryget(mkey, value))
break;
assert(MV_IS_STRING(mkey));
if (mkey->str.len < org_glvn2_keysz)
break;
if (0 != *((unsigned char *)mkey->str.addr + (TREF(gv_mergekey2))->end - 1) ||
memcmp(mkey->str.addr, (TREF(gv_mergekey2))->base, (TREF(gv_mergekey2))->end - 1))
break; /* mkey is not under the sub-tree */
delta2 = mkey->str.len - org_glvn2_keysz; /* length increase of source key */
assert (0 < delta2);
/* Save the new source key for next iteration */
memcpy(mglvnp->gblp[IND2]->s_gv_currkey->base + org_glvn2_keysz - 2,
mkey->str.addr + org_glvn2_keysz - 2, delta2 + 2);
mglvnp->gblp[IND2]->s_gv_currkey->end = mkey->str.len - 1;
/* Create the destination key for this iteration (under ^glvn1) */
gvname_env_restore(mglvnp->gblp[IND1]);
if (gv_cur_region->max_key_size < org_glvn1_keysz + delta2)
ISSUE_GVSUBOFLOW_ERROR(gv_currkey);
assert(gv_currkey->end == org_glvn1_keysz - 1);
memcpy(gv_currkey->base + org_glvn1_keysz - 2,
mkey->str.addr + org_glvn2_keysz - 2, delta2 + 2);
gv_currkey->end = org_glvn1_keysz + delta2 - 1;
if (nullcoll_src != nullcoll_dst)
{
if (0 == nullcoll_dst)
{ /* Standard to GTM null subscript conversion*/
STD2GTMNULLCOLL((unsigned char *)gv_currkey->base + org_glvn1_keysz - 1,
delta2 - 1);
} else
{ /* GTM to standard null subscript conversion */
GTM2STDNULLCOLL((unsigned char *)gv_currkey->base + org_glvn1_keysz - 1,
delta2 - 1);
}
}
/* check null subscripts in destination key, note that we have already restored, destination global
* and curresponding region, key information
*/
if (check_for_null_subs)
{
ptr2 = gv_currkey->base + gv_currkey->end - 1;
for (ptr = gv_currkey->base + org_glvn1_keysz - 2; ptr < ptr2; )
{
if (KEY_DELIMITER == *ptr++ && KEY_DELIMITER == *(ptr + 1) &&
(0 == gv_cur_region->std_null_coll ? (STR_SUB_PREFIX == *ptr) :
(SUBSCRIPT_STDCOL_NULL == *ptr)))
/* Note: For sgnl_gvnulsubsc/rts_error
* we do not restore proper naked indicator.
* The standard states that the effect of a MERGE command
* on the naked indicator is that the naked indicator will be changed
* as if a specific SET command would have been executed.
* The standard also states that the effect on the naked indicator
* will only take be visible after the MERGE command has completed.
* So, if there is an error during the execution of a MERGE command,
* the standard allows the naked indicator to reflect any intermediate
* state. This provision was made intentionally, otherwise it would
* have become nearly impossible to create a fully standard
* implementation. : From Ed de Moel : 2/1/2
*/
sgnl_gvnulsubsc();
}
}
/* Now put value of ^glvn2 descendant into corresponding descendant under ^glvn1 */
op_gvput(value);
}
gvname_env_restore(mglvnp->gblp[IND1]); /* store destination as naked indicator in gv_currkey */
} else
{ /*==================== MERGE lvn1=^gvn2 =====================*/
assert(MARG1_IS_LCL(merge_args));
assert(mglvnp->lclp[IND1]);
/* Need to protect subsc created from global variable subscripts from stpgcol */
PUSH_MV_STENT(MVST_MVAL);
subsc = &mv_chain->mv_st_cont.mvs_mval;
/* Restore ^gvn2 we will work */
gvname_env_save(mglvnp->gblp[IND2]);
if (1 == dollardata_src || 11 == dollardata_src)
{ /* SET lvn1=^gvn2 */
found = op_gvget(value);
if (found)
mglvnp->lclp[IND1]->v = *value;
}
for (; ;)
{
if (outofband)
{
gvname_env_restore(mglvnp->gblp[IND2]); /* naked indicator is restored into gv_currkey */
outofband_action(FALSE);
}
assert(0 == gv_currkey->base[gv_currkey->end - 1] && 0 == gv_currkey->base[gv_currkey->end]);
/* following is an attempt to find immidiate right sibling */
gv_currkey->base[gv_currkey->end] = 1;
gv_currkey->base[gv_currkey->end + 1] = 0;
gv_currkey->base[gv_currkey->end + 2] = 0;
gv_currkey->end += 2;
/* Do $QUERY and $GET of current glvn2. Result will be in mkey and value respectively.
* mkey->str contains data as database format. So no conversion necessary
*/
if (!op_gvqueryget(mkey, value))
break;
if (mkey->str.len < (TREF(gv_mergekey2))->end + 1)
break;
ptr = (unsigned char *)mkey->str.addr + (TREF(gv_mergekey2))->end - 1;
if (0 != *ptr || memcmp(mkey->str.addr, (TREF(gv_mergekey2))->base, (TREF(gv_mergekey2))->end - 1))
break;
assert(MV_IS_STRING(mkey));
delta2 = mkey->str.len - org_glvn2_keysz; /* length increase of key */
assert (0 < delta2);
/* Create next key for ^glvn2 */
memcpy(gv_currkey->base + org_glvn2_keysz - 2, mkey->str.addr + org_glvn2_keysz - 2, delta2 + 2);
gv_currkey->end = mkey->str.len - 1;
/* Now add subscripts to create the entire key */
dst_lv = mglvnp->lclp[IND1];
is_base_var = LV_IS_BASE_VAR(dst_lv);
ptr = (unsigned char *)gv_currkey->base + org_glvn2_keysz - 1;
assert(*ptr);
do
{
LV_SBS_DEPTH(dst_lv, is_base_var, sbs_depth);
if (MAX_LVSUBSCRIPTS <= sbs_depth)
rts_error(VARLSTCNT(3) ERR_MERGEINCOMPL, 0, ERR_MAXNRSUBSCRIPTS);
ptr2 = gvsub2str(ptr, buff, FALSE);
subsc->mvtype = MV_STR;
subsc->str.addr = (char *)buff;
subsc->str.len = INTCAST(ptr2 - buff);
s2pool(&subsc->str);
dst_lv = op_putindx(VARLSTCNT(2) dst_lv, subsc);
while (*ptr++); /* skip to start of next subscript */
is_base_var = FALSE;
} while (*ptr);
/* We created the key. Pre-process the node in case a container is being replaced,
* then assign the value directly. Note there is no need to worry about MV_ALIASCONT
* propagation since the source in this case is a global var.
*/
DECR_AC_REF(dst_lv, TRUE);
dst_lv->v = *value;
}
gvname_env_restore(mglvnp->gblp[IND2]); /* naked indicator is restored into gv_currkey */
POP_MV_STENT(); /* subsc */
}
POP_MV_STENT(); /* mkey */
} else
{ /* source is local */
op_fndata(mglvnp->lclp[IND2], value);
dollardata_src = MV_FORCE_INT(value);
if (0 == dollardata_src)
{
UNDO_ACTIVE_LV;
POP_MV_STENT(); /* value */
if (MARG1_IS_GBL(merge_args))
gvname_env_restore(mglvnp->gblp[IND1]); /* store destination as naked indicator in gv_currkey */
merge_args = 0; /* Must reset to zero to reuse the Global */
return;
}
/* not memsetting output to 0 here can cause garbage value of output.out_var.lv.child which in turn can
* cause a premature return from lvzwr_var resulting in op_merge() returning without having done the merge.
*/
memset(&output, 0, SIZEOF(output));
if (MARG1_IS_LCL(merge_args))
{ /*==================== MERGE lvn1=lvn2 =====================*/
assert(mglvnp->lclp[IND1]);
/* if self merge then NOOP */
if (!merge_desc_check()) /* will not proceed if one is descendant of another */
{
POP_MV_STENT(); /* value */
merge_args = 0; /* Must reset to zero to reuse the Global */
return;
}
output.buff = (char *)buff;
output.ptr = output.buff;
output.out_var.lv.lvar = mglvnp->lclp[IND1];
zwr_output = &output;
lvzwr_init(zwr_patrn_mident, &mglvnp->lclp[IND2]->v);
lvzwr_arg(ZWRITE_ASTERISK, 0, 0);
lvzwr_var(mglvnp->lclp[IND2], 0);
/* assert that destination got all data of the source and its descendants */
DEBUG_ONLY(op_fndata(mglvnp->lclp[IND1], value));
DEBUG_ONLY(dollardata_dst = MV_FORCE_INT(value));
assert((dollardata_src & dollardata_dst) == dollardata_src);
} else
{ /*==================== MERGE ^gvn1=lvn2 =====================*/
assert(MARG1_IS_GBL(merge_args) && MARG2_IS_LCL(merge_args));
gvname_env_save(mglvnp->gblp[IND1]);
output.buff = (char *)buff;
output.ptr = output.buff;
output.out_var.gv.end = gv_currkey->end;
output.out_var.gv.prev = gv_currkey->prev;
zwr_output = &output;
lvzwr_init(zwr_patrn_mident, &mglvnp->lclp[IND2]->v);
lvzwr_arg(ZWRITE_ASTERISK, 0, 0);
lvzwr_var(mglvnp->lclp[IND2], 0);
gvname_env_restore(mglvnp->gblp[IND1]); /* store destination as naked indicator in gv_currkey */
}
}
POP_MV_STENT(); /* value */
merge_args = 0; /* Must reset to zero to reuse the Global */
}
