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Allow no scratch for stream reset API calls

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Bring hs_reset_stream(), hs_reset_and_copy_stream()'s functionality into
line with hs_close_stream() by accepting a NULL scratch if and only if
the match callback is also NULL, indicating that no matches should be
delivered.
This commit is contained in:
Justin Viiret
2015-10-23 15:32:55 +11:00
committed by Matthew Barr
parent b59491d0db
commit 9ff1303cd8
4 changed files with 60 additions and 18 deletions
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41
unit/hyperscan/arg_checks.cpp
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@@ -740,7 +740,9 @@ TEST(HyperscanArgChecks, ResetAndCopyStreamSameToId) {
hs_free_database(db);
}
TEST(HyperscanArgChecks, ResetAndCopyStreamNoScratch) {
// hs_reset_and_copy_stream: You're allowed to reset and copy a stream with no
// scratch and no callback.
TEST(HyperscanArgChecks, ResetAndCopyStreamNoCallbackOrScratch) {
hs_stream_t *stream = nullptr;
hs_stream_t *stream_to = nullptr;
hs_database_t *db = nullptr;
@@ -760,6 +762,37 @@ TEST(HyperscanArgChecks, ResetAndCopyStreamNoScratch) {
ASSERT_EQ(HS_SUCCESS, err);
err = hs_reset_and_copy_stream(stream_to, stream, nullptr, nullptr, nullptr);
ASSERT_EQ(HS_SUCCESS, err);
hs_close_stream(stream_to, scratch, nullptr, nullptr);
hs_close_stream(stream, scratch, nullptr, nullptr);
hs_free_scratch(scratch);
hs_free_database(db);
}
// hs_reset_and_copy_stream: If you specify a callback, you must provide
// scratch.
TEST(HyperscanArgChecks, ResetAndCopyStreamNoScratch) {
hs_stream_t *stream = nullptr;
hs_stream_t *stream_to = nullptr;
hs_database_t *db = nullptr;
hs_compile_error_t *compile_err = nullptr;
hs_error_t err = hs_compile("foobar", 0, HS_MODE_STREAM, nullptr, &db,
&compile_err);
ASSERT_EQ(HS_SUCCESS, err);
hs_scratch_t *scratch = nullptr;
err = hs_alloc_scratch(db, &scratch);
ASSERT_EQ(HS_SUCCESS, err);
err = hs_open_stream(db, 0, &stream);
ASSERT_EQ(HS_SUCCESS, err);
err = hs_open_stream(db, 0, &stream_to);
ASSERT_EQ(HS_SUCCESS, err);
err = hs_reset_and_copy_stream(stream_to, stream, nullptr, dummy_cb,
nullptr);
ASSERT_EQ(HS_INVALID, err);
hs_close_stream(stream_to, scratch, nullptr, nullptr);
@@ -793,7 +826,8 @@ TEST(HyperscanArgChecks, ResetAndCopyStreamDiffDb) {
err = hs_open_stream(db2, 0, &stream_to);
ASSERT_EQ(HS_SUCCESS, err);
err = hs_reset_and_copy_stream(stream_to, stream, scratch, nullptr, nullptr);
err = hs_reset_and_copy_stream(stream_to, stream, scratch, nullptr,
nullptr);
ASSERT_EQ(HS_INVALID, err);
hs_close_stream(stream_to, scratch, nullptr, nullptr);
@@ -2009,6 +2043,7 @@ TEST(HyperscanArgChecks, ScanStreamBadScratch) {
free(local_garbage);
}
// hs_reset_stream: bad scratch arg
TEST(HyperscanArgChecks, ResetStreamBadScratch) {
hs_database_t *db = nullptr;
hs_compile_error_t *compile_err = nullptr;
@@ -2025,7 +2060,7 @@ TEST(HyperscanArgChecks, ResetStreamBadScratch) {
ASSERT_EQ(HS_SUCCESS, err);
ASSERT_TRUE(stream != nullptr);
err = hs_reset_stream(stream, 0, scratch, nullptr, nullptr);
err = hs_reset_stream(stream, 0, scratch, dummy_cb, nullptr);
EXPECT_NE(HS_SUCCESS, err);
EXPECT_NE(HS_SCAN_TERMINATED, err);