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Johan Fylling
34349c5a6c
Fixing possible memory leak where caches grow uncontrollably when large amounts of regexes or globs are generated or originate from the input document. Fixes: #6828 Signed-off-by: Johan Fylling <johan.dev@fylling.se>
29 lines
714 B
C++
29 lines
714 B
C++
#include <unordered_map>
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#include "malloc.h"
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#include "regex.h"
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#include "test.h"
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WASM_EXPORT(test_regex_cache)
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extern "C"
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void test_regex_cache(void)
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{
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// Reset the cache
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opa_builtin_cache_set(0, NULL);
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for (int i = 0; i < 100; i++)
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{
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char pattern[20];
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snprintf(pattern, sizeof(pattern), "foo%d.*", i);
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opa_regex_match(opa_string_terminated(pattern), opa_string_terminated("foobar"));
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}
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std::unordered_map<void*, void*>* c = static_cast<std::unordered_map<void*, void*>*>(opa_builtin_cache_get(0));
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test("regex cache size", c->size() == 100);
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opa_regex_match(opa_string_terminated("bar.*"), opa_string_terminated("barbaz"));
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test("regex cache size doesn't surpass max", c->size() == 100);
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} |