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Prevent memory leak if cql_parse is called repeatedly
[yaz-moved-to-github.git]
/
cql
/
cql.y
diff --git
a/cql/cql.y
b/cql/cql.y
index
582be81
..
e0a2265
100644
(file)
--- a/
cql/cql.y
+++ b/
cql/cql.y
@@
-1,4
+1,4
@@
-/* $Id: cql.y,v 1.3 2003-02-14 18:49:23 adam Exp $
+/* $Id: cql.y,v 1.5 2003-06-04 09:44:05 adam Exp $
Copyright (C) 2002-2003
Index Data Aps
Copyright (C) 2002-2003
Index Data Aps
@@
-13,14
+13,15
@@
See the file LICENSE.
#include <stdlib.h>
#include <string.h>
#include <ctype.h>
#include <stdlib.h>
#include <string.h>
#include <ctype.h>
+#include <yaz/nmem.h>
#include <yaz/cql.h>
typedef struct {
struct cql_node *rel;
struct cql_node *cql;
#include <yaz/cql.h>
typedef struct {
struct cql_node *rel;
struct cql_node *cql;
- char buf[80];
+ char *buf;
size_t len;
size_t len;
- size_t max;
+ size_t size;
} token;
struct cql_parser {
} token;
struct cql_parser {
@@
-30,6
+31,7
@@
See the file LICENSE.
int last_error;
int last_pos;
struct cql_node *top;
int last_error;
int last_pos;
struct cql_node *top;
+ NMEM nmem;
};
#define YYSTYPE token
};
#define YYSTYPE token
@@
-242,6
+244,8
@@
int cql_parser_stream(CQL_parser cp,
cp->getbyte = getbyte;
cp->ungetbyte = ungetbyte;
cp->client_data = client_data;
cp->getbyte = getbyte;
cp->ungetbyte = ungetbyte;
cp->client_data = client_data;
+ if (cp->top)
+ cql_node_destroy(cp->top);
cql_parse(cp);
if (cp->top)
return 0;
cql_parse(cp);
if (cp->top)
return 0;
@@
-252,12
+256,20
@@
CQL_parser cql_parser_create(void)
{
CQL_parser cp = (CQL_parser) malloc (sizeof(*cp));
{
CQL_parser cp = (CQL_parser) malloc (sizeof(*cp));
+ cp->top = 0;
+ cp->getbyte = 0;
+ cp->ungetbyte = 0;
+ cp->client_data = 0;
+ cp->last_error = 0;
+ cp->last_pos = 0;
+ cp->nmem = nmem_create();
return cp;
}
void cql_parser_destroy(CQL_parser cp)
{
cql_node_destroy(cp->top);
return cp;
}
void cql_parser_destroy(CQL_parser cp)
{
cql_node_destroy(cp->top);
+ nmem_destroy(cp->nmem);
free (cp);
}
free (cp);
}