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plpgsql_dstring_append was broken for long strings.

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This commit is contained in:
Tom Lane 2002-05-05 17:38:26 +00:00
parent 846429e3d6
commit c0e9dc1229
1 changed files with 8 additions and 3 deletions
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11
src/pl/plpgsql/src/pl_funcs.c
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@ -3,7 +3,7 @@
* procedural language
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/pl/plpgsql/src/pl_funcs.c,v 1.17 2001/11/15 23:31:09 tgl Exp $
* $Header: /cvsroot/pgsql/src/pl/plpgsql/src/pl_funcs.c,v 1.18 2002/05/05 17:38:26 tgl Exp $
*
* This software is copyrighted by Jan Wieck - Hamburg.
*
@ -64,6 +64,7 @@ plpgsql_dstring_init(PLpgSQL_dstring * ds)
{
ds->value = palloc(ds->alloc = 512);
ds->used = 0;
ds->value[0] = '\0';
}
@ -86,10 +87,14 @@ void
plpgsql_dstring_append(PLpgSQL_dstring * ds, char *str)
{
int len = strlen(str);
int needed = ds->used + len + 1;
if (ds->used + len + 1 > ds->alloc)
if (needed > ds->alloc)
{
ds->alloc *= 2;
/* might have to double more than once, if len is large */
do {
ds->alloc *= 2;
} while (needed > ds->alloc);
ds->value = repalloc(ds->value, ds->alloc);
}