Initial commit of Hyperscan

src/state.h

@@ -0,0 +1,69 @@
+/*
+ * 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.
+ */
+
+/** \file
+ * \brief Stream state data structures.
+ */
+
+#ifndef STATE_H
+#define STATE_H
+
+#include "hs_runtime.h" /* match_event_handler */
+#include "ue2common.h"
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+struct RoseEngine;
+
+/** \brief Stream context: allocated for each stream.
+ *
+ * struct hs_stream is followed in memory by the main Rose state: history,
+ * exhaustion, individual states, etc. The RoseEngine has the offsets required
+ * to correctly index into the main state structure. The offsets used by the
+ * RoseEngine are based on the end of the hs_stream struct as its size may
+ * vary from platform to platform.
+ */
+struct hs_stream {
+    /** \brief The RoseEngine that this stream is matching against. */
+    const struct RoseEngine *rose;
+
+    /** \brief The current stream offset. */
+    u64a offset;
+};
+
+#define getMultiState(hs_s)      ((char *)(hs_s) + sizeof(*(hs_s)))
+#define getMultiStateConst(hs_s) ((const char *)(hs_s) + sizeof(*(hs_s)))
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif