v1-0005-seg-Use-palloc-instead-of-malloc-for-flex.patch
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Filename: v1-0005-seg-Use-palloc-instead-of-malloc-for-flex.patch
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Part: 4
Patch
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Format: format-patch
Series: patch v1-0005
Subject: seg: Use palloc() instead of malloc() for flex
| File | + | − |
|---|---|---|
| contrib/seg/segscan.l | 30 | 0 |
From 4bae9413f75ab9d12dd5fedfccc633e7efce7e42 Mon Sep 17 00:00:00 2001
From: Peter Eisentraut <peter@eisentraut.org>
Date: Mon, 2 Dec 2024 10:35:37 +0100
Subject: [PATCH v1 05/19] seg: Use palloc() instead of malloc() for flex
---
contrib/seg/segscan.l | 30 ++++++++++++++++++++++++++++++
1 file changed, 30 insertions(+)
diff --git a/contrib/seg/segscan.l b/contrib/seg/segscan.l
index 35c3a11ac14..004ac07fae2 100644
--- a/contrib/seg/segscan.l
+++ b/contrib/seg/segscan.l
@@ -38,6 +38,9 @@ static char *scanbuf; // FIXME
%option noinput
%option nounput
%option noyywrap
+%option noyyalloc
+%option noyyrealloc
+%option noyyfree
%option warn
%option prefix="seg_yy"
@@ -124,3 +127,30 @@ seg_scanner_finish(yyscan_t yyscanner)
yylex_destroy(yyscanner);
pfree(scanbuf);
}
+
+/*
+ * Interface functions to make flex use palloc() instead of malloc().
+ * It'd be better to make these static, but flex insists otherwise.
+ */
+
+void *
+yyalloc(yy_size_t size, yyscan_t yyscanner)
+{
+ return palloc(size);
+}
+
+void *
+yyrealloc(void *ptr, yy_size_t size, yyscan_t yyscanner)
+{
+ if (ptr)
+ return repalloc(ptr, size);
+ else
+ return palloc(size);
+}
+
+void
+yyfree(void *ptr, yyscan_t yyscanner)
+{
+ if (ptr)
+ pfree(ptr);
+}
--
2.47.1