Initial commit of Hyperscan

src/smallwrite/smallwrite_dump.cpp

@@ -0,0 +1,90 @@
+/*
+ * Copyright (c) 2015, Intel Corporation
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ *  * Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ *  * Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *  * Neither the name of Intel Corporation nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "config.h"
+
+#include "smallwrite_dump.h"
+#include "smallwrite_internal.h"
+#include "ue2common.h"
+#include "nfa/nfa_build_util.h"
+#include "nfa/nfa_dump_api.h"
+#include "nfa/nfa_internal.h"
+
+#include <cstdio>
+#include <string>
+
+#ifndef DUMP_SUPPORT
+#error No dump support!
+#endif
+
+using namespace std;
+
+namespace ue2 {
+
+void smwrDumpText(const SmallWriteEngine *smwr, FILE *f) {
+    if (!smwr) {
+        fprintf(f, "<< no smallwrite >>\n");
+        return;
+    }
+
+    const struct NFA *n = getSmwrNfa(smwr);
+
+    fprintf(f, "SmallWrite:\n\n");
+    fprintf(f, "%s\n", describe(*n).c_str());
+    fprintf(f, "States: %u\n", n->nPositions);
+    fprintf(f, "Length: %u\n", n->length);
+    fprintf(f, "Largest Short Buffer: %u\n", smwr->largestBuffer);
+    fprintf(f, "Start Offset: %u\n", smwr->start_offset);
+}
+
+void smwrDumpNFA(const SmallWriteEngine *smwr, bool dump_raw,
+                 const string &base) {
+    if (!smwr) {
+        DEBUG_PRINTF("no smallwrite\n");
+        return;
+    }
+
+    const struct NFA *n = getSmwrNfa(smwr);
+    FILE *f;
+
+    f = fopen((base + "smallwrite_nfa.dot").c_str(), "w");
+    nfaDumpDot(n, f);
+    fclose(f);
+
+    f = fopen((base + "smallwrite_nfa.txt").c_str(), "w");
+    nfaDumpText(n, f);
+    fclose(f);
+
+    if (dump_raw) {
+        f = fopen((base + "smallwrite_nfa.raw").c_str(), "w");
+        fwrite(n, 1, n->length, f);
+        fclose(f);
+    }
+}
+
+} // namespace ue2