From 5996477a5e96086501fd9140aa877c08d65edc3c Mon Sep 17 00:00:00 2001
From: "Sven M. Hallberg" <pesco@khjk.org>
Date: Mon, 30 Nov 2015 17:50:29 +0100
Subject: [PATCH] out-of-memory handling in packrat backend
---
src/backends/packrat.c | 9 +++++++++
1 file changed, 9 insertions(+)
diff --git a/src/backends/packrat.c b/src/backends/packrat.c
index abb198b0..b7e47aef 100644
--- a/src/backends/packrat.c
+++ b/src/backends/packrat.c
@@ -254,6 +254,15 @@ static bool pos_equal(const void* key1, const void* key2) {
HParseResult *h_packrat_parse(HAllocator* mm__, const HParser* parser, HInputStream *input_stream) {
HArena * arena = h_new_arena(mm__, 0);
+
+ // out-of-memory handling
+ jmp_buf except;
+ h_arena_set_except(arena, &except);
+ if(setjmp(except)) {
+ h_delete_arena(arena);
+ return NULL;
+ }
+
HParseState *parse_state = a_new_(arena, HParseState, 1);
parse_state->cache = h_hashtable_new(arena, cache_key_equal, // key_equal_func
cache_key_hash); // hash_func
--
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