chimera: hybrid of Hyperscan and PCRE

chimera/ch_alloc.h

@@ -0,0 +1,65 @@
+/*
+ * Copyright (c) 2018, 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.
+ */
+
+#ifndef CH_ALLOC_H
+#define CH_ALLOC_H
+
+#include "hs_common.h"
+#include "ue2common.h"
+#include "ch_common.h"
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+extern hs_alloc_t ch_database_alloc;
+extern hs_alloc_t ch_misc_alloc;
+extern hs_alloc_t ch_scratch_alloc;
+
+extern hs_free_t ch_database_free;
+extern hs_free_t ch_misc_free;
+extern hs_free_t ch_scratch_free;
+#ifdef __cplusplus
+} /* extern C */
+#endif
+/** \brief Check the results of an alloc done with hs_alloc for alignment.
+ *
+ * If we have incorrect alignment, return an error. Caller should free the
+ * offending block. */
+static really_inline
+ch_error_t ch_check_alloc(const void *mem) {
+    ch_error_t ret = CH_SUCCESS;
+    if (!mem) {
+        ret = CH_NOMEM;
+    } else if (!ISALIGNED_N(mem, alignof(unsigned long long))) {
+        ret = CH_BAD_ALLOC;
+    }
+    return ret;
+}
+
+#endif