united the static fat runtime dispatcher with the BSD support.

README.md

@@ -173,9 +173,14 @@ export CC="/usr/local/bin/gcc12"
 export CXX="/usr/local/bin/g++12"
 ```
 
-
 Then continue with the build as below. 
 
+A note about running in FreeBSD: if you built a dynamically linked binary
+with an alternative compiler, the libraries specific to the compiler that
+built the binary will probably not be found and the base distro libraries
+in /lib will be found instead. Adjust LD_LIBRARY_PATH appropriately. For
+example, with gcc12 installed from pkg, one would want to use
+```export LD_LIBRARY_PATH=/usr/local/lib/gcc12/``` 
 
 ## Configure & build
 

cmake/build_wrapper.sh

@@ -15,13 +15,21 @@ SYMSFILE=$(mktemp -p /tmp ${PREFIX}_rename.syms.XXXXX)
 KEEPSYMS=$(mktemp -p /tmp keep.syms.XXXXX)
 # find the libc used by gcc
 LIBC_SO=$("$@" --print-file-name=libc.so.6)
+NM_FLAG="-f"
+if [ `uname` = "FreeBSD" ]; then
+    # for freebsd, we will specify the name, 
+    # we will leave it work as is in linux
+    LIBC_SO=/lib/libc.so.7
+    # also, in BSD, the nm flag -F corresponds to the -f flag in linux.
+    NM_FLAG="-F"
+fi
 cp ${KEEPSYMS_IN} ${KEEPSYMS}
 # get all symbols from libc and turn them into patterns
-nm -f p -g -D ${LIBC_SO} | sed -s 's/\([^ @]*\).*/^\1$/' >> ${KEEPSYMS}
+nm ${NM_FLAG} p -g -D ${LIBC_SO} | sed 's/\([^ @]*\).*/^\1$/' >> ${KEEPSYMS}
 # build the object
 "$@"
 # rename the symbols in the object
-nm -f p -g ${OUT} | cut -f1 -d' ' | grep -v -f ${KEEPSYMS} | sed -e "s/\(.*\)/\1\ ${PREFIX}_\1/" >> ${SYMSFILE}
+nm ${NM_FLAG} p -g ${OUT} | cut -f1 -d' ' | grep -v -f ${KEEPSYMS} | sed -e "s/\(.*\)/\1\ ${PREFIX}_\1/" >> ${SYMSFILE}
 if test -s ${SYMSFILE}
 then
     objcopy --redefine-syms=${SYMSFILE} ${OUT}

cmake/osdetection.cmake

@@ -4,14 +4,13 @@ endif(CMAKE_SYSTEM_NAME MATCHES "Linux")
 
 if(CMAKE_SYSTEM_NAME MATCHES "FreeBSD")
     set(FREEBSD true)
-    set(CMAKE_INSTALL_RPATH_USE_LINK_PATH true)
 endif(CMAKE_SYSTEM_NAME MATCHES "FreeBSD")
 
 if(CMAKE_SYSTEM_NAME MATCHES "NetBSD")
     set(NETBSD true)
 endif(CMAKE_SYSTEM_NAME MATCHES "NetBSD")
 
-if (LINUX AND (ARCH_IA32 OR ARCH_X86_64))
+if (ARCH_IA32 OR ARCH_X86_64)
   option(FAT_RUNTIME "Build a library that supports multiple microarchitectures" ON)
 else()
   option(FAT_RUNTIME "Build a library that supports multiple microarchitectures" OFF)
@@ -19,26 +18,22 @@ endif()
 
 if (FAT_RUNTIME)
     message("Checking Fat Runtime Requirements...")
-    if (NOT LINUX)
+    if (USE_CPU_NATIVE AND FAT_RUNTIME)
-        message(FATAL_ERROR "Fat runtime is only supported on Linux OS")
+        message(FATAL_ERROR "Fat runtime is not compatible with Native CPU detection")
-    else()
+    endif()
-        if (USE_CPU_NATIVE AND FAT_RUNTIME)
-            message(FATAL_ERROR "Fat runtime is not compatible with Native CPU detection")
-        endif()
 
-        if (NOT (ARCH_IA32 OR ARCH_X86_64 OR ARCH_AARCH64))
+    if (NOT (ARCH_IA32 OR ARCH_X86_64 OR ARCH_AARCH64))
-            message(FATAL_ERROR "Fat runtime is only supported on Intel and Aarch64 architectures")
+        message(FATAL_ERROR "Fat runtime is only supported on Intel and Aarch64 architectures")
+    else()
+        message(STATUS "Building Fat runtime for multiple microarchitectures")
+        message(STATUS "generator is ${CMAKE_GENERATOR}")
+        if (NOT (CMAKE_GENERATOR MATCHES "Unix Makefiles" OR
+            (CMAKE_VERSION VERSION_GREATER "3.0" AND CMAKE_GENERATOR MATCHES "Ninja")))
+            message (FATAL_ERROR "Building the fat runtime requires the Unix Makefiles generator, or Ninja with CMake v3.0 or higher")
         else()
-            message(STATUS "Building Fat runtime for multiple microarchitectures")
+            include (${CMAKE_MODULE_PATH}/attrib.cmake)
-            message(STATUS "generator is ${CMAKE_GENERATOR}")
+            if (NOT HAS_C_ATTR_IFUNC)
-            if (NOT (CMAKE_GENERATOR MATCHES "Unix Makefiles" OR
+                message(FATAL_ERROR "Compiler does not support ifunc attribute, cannot build fat runtime")
-                (CMAKE_VERSION VERSION_GREATER "3.0" AND CMAKE_GENERATOR MATCHES "Ninja")))
-                message (FATAL_ERROR "Building the fat runtime requires the Unix Makefiles generator, or Ninja with CMake v3.0 or higher")
-            else()
-                include (${CMAKE_MODULE_PATH}/attrib.cmake)
-                if (NOT HAS_C_ATTR_IFUNC)
-                    message(FATAL_ERROR "Compiler does not support ifunc attribute, cannot build fat runtime")
-                endif()
             endif()
         endif()
     endif()

src/dispatcher.c

@@ -1,5 +1,6 @@
 /*
  * Copyright (c) 2016-2020, Intel Corporation
+ * Copyright (c) 2024, VectorCamp PC
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are met:
@@ -30,6 +31,39 @@
 #include "hs_common.h"
 #include "hs_runtime.h"
 #include "ue2common.h"
+
+/* streamlining the dispatch to eliminate runtime checking/branching:
+ * what we want to do is, first call to the function will run the resolve
+ * code and set the static resolved/dispatch pointer to point to the
+ * correct function. Subsequent calls to the function will go directly to
+ * the resolved ptr. The simplest way to accomplish this is, to
+ * initially set the pointer to the resolve function.
+ * To accomplish this in a manner invisible to the user,
+ * we do involve some rather ugly/confusing macros in here.
+ * There are four macros that assemble the code for each function
+ * we want to dispatch in this manner:
+ * CREATE_DISPATCH
+ * this generates the declarations for the candidate target functions,
+ * for the fat_dispatch function pointer, for the resolve_ function,
+ * points the function pointer to the resolve function, and contains
+ * most of the definition of the resolve function. The very end of the
+ * resolve function is completed by the next macro, because in the
+ * CREATE_DISPATCH macro we have the argument list with the arg declarations,
+ * which is needed to generate correct function signatures, but we
+ * can't generate from this, in a macro, a _call_ to one of those functions.
+ * CONNECT_ARGS_1
+ * this macro fills in the actual call at the end of the resolve function,
+ * with the correct arg list. hence the name connect args.
+ * CONNECT_DISPATCH_2
+ * this macro likewise gives up the beginning of the definition of the
+ * actual entry point function (the 'real name' that's called by the user)
+ * but again in the pass-through call, cannot invoke the target without
+ * getting the arg list , which is supplied by the final macro,
+ * CONNECT_ARGS_3
+ *
+ */
+
+
 #if defined(ARCH_IA32) || defined(ARCH_X86_64)
 #include "util/arch/x86/cpuid_inline.h"
 #include "util/join.h"
@@ -57,30 +91,38 @@
         return (RTYPE)HS_ARCH_ERROR;                                           \
     }                                                                          \
                                                                                \
-    /* resolver */                                                             \
+    /* dispatch routing pointer for this function */                           \
-    static RTYPE (*JOIN(resolve_, NAME)(void))(__VA_ARGS__) {                  \
+    /* initially point it at the resolve function */                           \
-        if (check_avx512vbmi()) {                                              \
+    static RTYPE JOIN(resolve_, NAME)(__VA_ARGS__);                            \
-            return JOIN(avx512vbmi_, NAME);                                    \
+    static RTYPE (* JOIN(fat_dispatch_, NAME))(__VA_ARGS__) =                  \
-        }                                                                      \
+        &JOIN(resolve_, NAME);                                                 \
-        if (check_avx512()) {                                                  \
-            return JOIN(avx512_, NAME);                                        \
-        }                                                                      \
-        if (check_avx2()) {                                                    \
-            return JOIN(avx2_, NAME);                                          \
-        }                                                                      \
-        if (check_sse42() && check_popcnt()) {                                 \
-            return JOIN(corei7_, NAME);                                        \
-        }                                                                      \
-        if (check_ssse3()) {                                                   \
-            return JOIN(core2_, NAME);                                         \
-        }                                                                      \
-        /* anything else is fail */                                            \
-        return JOIN(error_, NAME);                                             \
-    }                                                                          \
                                                                                \
-    /* function */                                                             \
+    /* resolver */                                                             \
-    HS_PUBLIC_API                                                              \
+    static RTYPE JOIN(resolve_, NAME)(__VA_ARGS__) {                           \
-    RTYPE NAME(__VA_ARGS__) __attribute__((ifunc("resolve_" #NAME)))
+        if (check_avx512vbmi()) {                                              \
+            fat_dispatch_ ## NAME = &JOIN(avx512vbmi_, NAME);                  \
+        }                                                                      \
+        else if (check_avx512()) {                                             \
+            fat_dispatch_ ## NAME = &JOIN(avx512_, NAME);                      \
+        }                                                                      \
+        else if (check_avx2()) {                                               \
+            fat_dispatch_ ## NAME = &JOIN(avx2_, NAME);                        \
+        }                                                                      \
+        else if (check_sse42() && check_popcnt()) {                            \
+            fat_dispatch_ ## NAME = &JOIN(corei7_, NAME);                      \
+        }                                                                      \
+        else if (check_ssse3()) {                                              \
+            fat_dispatch_ ## NAME = &JOIN(core2_, NAME);                       \
+        } else {                                                               \
+            /* anything else is fail */                                        \
+            fat_dispatch_ ## NAME = &JOIN(error_, NAME);                       \
+        }                                                                      \
+
+
+
+/* the rest of the function is completed in the CONNECT_ARGS_1 macro. */
+
+
 
 #elif defined(ARCH_AARCH64)
 #include "util/arch/arm/cpuid_inline.h"
@@ -97,99 +139,226 @@
         return (RTYPE)HS_ARCH_ERROR;                                           \
     }                                                                          \
                                                                                \
-    /* resolver */                                                             \
+    /* dispatch routing pointer for this function */                           \
-    static RTYPE (*JOIN(resolve_, NAME)(void))(__VA_ARGS__) {                  \
+    /* initially point it at the resolve function */                           \
-        if (check_sve2()) {                                                    \
+    static RTYPE JOIN(resolve_, NAME)(__VA_ARGS__);                            \
-            return JOIN(sve2_, NAME);                                          \
+    static RTYPE (* JOIN(fat_dispatch_, NAME))(__VA_ARGS__) =                  \
-        }                                                                      \
+        &JOIN(resolve_, NAME);                                                 \
-        if (check_sve()) {                                                     \
-            return JOIN(sve_, NAME);                                           \
-        }                                                                      \
-        if (check_neon()) {                                                    \
-            return JOIN(neon_, NAME);                                          \
-        }                                                                      \
-        /* anything else is fail */                                            \
-        return JOIN(error_, NAME);                                             \
-    }                                                                          \
                                                                                \
-    /* function */                                                             \
+    /* resolver */                                                             \
-    HS_PUBLIC_API                                                              \
+    static RTYPE JOIN(resolve_, NAME)(__VA_ARGS__) {                           \
-    RTYPE NAME(__VA_ARGS__) __attribute__((ifunc("resolve_" #NAME)))
+        if (check_sve2()) {                                                    \
+            fat_dispatch_ ## NAME = &JOIN(sve2_, NAME);                        \
+        }                                                                      \
+        else if (check_sve()) {                                                \
+            fat_dispatch_ ## NAME = &JOIN(sve_, NAME);                         \
+        }                                                                      \
+        else if (check_neon()) {                                               \
+            fat_dispatch_ ## NAME = &JOIN(neon_, NAME);                        \
+        } else {                                                               \
+            /* anything else is fail */                                        \
+            fat_dispatch_ ## NAME = &JOIN(error_, NAME);                       \
+        }                                                                      \
+
+
+/* the rest of the function is completed in the CONNECT_ARGS_1 macro. */
+
 
 #endif
 
+
+#define CONNECT_ARGS_1(RTYPE, NAME, ...)                                       \
+        return (*fat_dispatch_ ## NAME)(__VA_ARGS__);                          \
+    }                                                                          \
+
+
+#define CONNECT_DISPATCH_2(RTYPE, NAME, ...)                                   \
+    /* new function */                                                         \
+    HS_PUBLIC_API                                                              \
+    RTYPE NAME(__VA_ARGS__) {                                                  \
+
+
+#define CONNECT_ARGS_3(RTYPE, NAME, ...)                                       \
+        return (*fat_dispatch_ ## NAME)(__VA_ARGS__);                          \
+    }                                                                          \
+
+
 #pragma GCC diagnostic push
 #pragma GCC diagnostic ignored "-Wunused-parameter"
 #pragma GCC diagnostic push
 #pragma GCC diagnostic ignored "-Wunused-function"
+
+/* this gets a bit ugly to compose the static redirect functions,
+ * as we necessarily need first the typed arg list and then just the arg
+ * names, twice in a row, to define the redirect function and the
+ * dispatch function call */
+
 CREATE_DISPATCH(hs_error_t, hs_scan, const hs_database_t *db, const char *data,
                 unsigned length, unsigned flags, hs_scratch_t *scratch,
                 match_event_handler onEvent, void *userCtx);
+CONNECT_ARGS_1(hs_error_t, hs_scan, db, data, length, flags, scratch, onEvent, userCtx);
+CONNECT_DISPATCH_2(hs_error_t, hs_scan, const hs_database_t *db, const char *data,
+                unsigned length, unsigned flags, hs_scratch_t *scratch,
+                match_event_handler onEvent, void *userCtx);
+CONNECT_ARGS_3(hs_error_t, hs_scan, db, data, length, flags, scratch, onEvent, userCtx);
 
 CREATE_DISPATCH(hs_error_t, hs_stream_size, const hs_database_t *database,
                 size_t *stream_size);
+CONNECT_ARGS_1(hs_error_t, hs_stream_size, database, stream_size);
+CONNECT_DISPATCH_2(hs_error_t, hs_stream_size, const hs_database_t *database,
+                size_t *stream_size);
+CONNECT_ARGS_3(hs_error_t, hs_stream_size, database, stream_size);
 
 CREATE_DISPATCH(hs_error_t, hs_database_size, const hs_database_t *db,
                 size_t *size);
+CONNECT_ARGS_1(hs_error_t, hs_database_size, db, size);
+CONNECT_DISPATCH_2(hs_error_t, hs_database_size, const hs_database_t *db,
+                size_t *size);
+CONNECT_ARGS_3(hs_error_t, hs_database_size, db, size);
+
 CREATE_DISPATCH(hs_error_t, dbIsValid, const hs_database_t *db);
+CONNECT_ARGS_1(hs_error_t, dbIsValid, db);
+CONNECT_DISPATCH_2(hs_error_t, dbIsValid, const hs_database_t *db);
+CONNECT_ARGS_3(hs_error_t, dbIsValid, db);
+
 CREATE_DISPATCH(hs_error_t, hs_free_database, hs_database_t *db);
+CONNECT_ARGS_1(hs_error_t, hs_free_database, db);
+CONNECT_DISPATCH_2(hs_error_t, hs_free_database, hs_database_t *db);
+CONNECT_ARGS_3(hs_error_t, hs_free_database, db);
 
 CREATE_DISPATCH(hs_error_t, hs_open_stream, const hs_database_t *db,
                 unsigned int flags, hs_stream_t **stream);
+CONNECT_ARGS_1(hs_error_t, hs_open_stream, db, flags, stream);
+CONNECT_DISPATCH_2(hs_error_t, hs_open_stream, const hs_database_t *db,
+                unsigned int flags, hs_stream_t **stream);
+CONNECT_ARGS_3(hs_error_t, hs_open_stream, db, flags, stream);
 
 CREATE_DISPATCH(hs_error_t, hs_scan_stream, hs_stream_t *id, const char *data,
                 unsigned int length, unsigned int flags, hs_scratch_t *scratch,
                 match_event_handler onEvent, void *ctxt);
+CONNECT_ARGS_1(hs_error_t, hs_scan_stream, id, data, length, flags, scratch, onEvent, ctxt);
+CONNECT_DISPATCH_2(hs_error_t, hs_scan_stream, hs_stream_t *id, const char *data,
+                unsigned int length, unsigned int flags, hs_scratch_t *scratch,
+                match_event_handler onEvent, void *ctxt);
+CONNECT_ARGS_3(hs_error_t, hs_scan_stream, id, data, length, flags, scratch, onEvent, ctxt);
 
 CREATE_DISPATCH(hs_error_t, hs_close_stream, hs_stream_t *id,
                 hs_scratch_t *scratch, match_event_handler onEvent, void *ctxt);
+CONNECT_ARGS_1(hs_error_t, hs_close_stream, id, scratch, onEvent, ctxt);
+CONNECT_DISPATCH_2(hs_error_t, hs_close_stream, hs_stream_t *id,
+                hs_scratch_t *scratch, match_event_handler onEvent, void *ctxt);
+CONNECT_ARGS_3(hs_error_t, hs_close_stream, id, scratch, onEvent, ctxt);
 
 CREATE_DISPATCH(hs_error_t, hs_scan_vector, const hs_database_t *db,
                 const char *const *data, const unsigned int *length,
                 unsigned int count, unsigned int flags, hs_scratch_t *scratch,
                 match_event_handler onevent, void *context);
+CONNECT_ARGS_1(hs_error_t, hs_scan_vector, db, data, length, count, flags, scratch, onevent, context);
+CONNECT_DISPATCH_2(hs_error_t, hs_scan_vector, const hs_database_t *db,
+                const char *const *data, const unsigned int *length,
+                unsigned int count, unsigned int flags, hs_scratch_t *scratch,
+                match_event_handler onevent, void *context);
+CONNECT_ARGS_3(hs_error_t, hs_scan_vector, db, data, length, count, flags, scratch, onevent, context);
 
 CREATE_DISPATCH(hs_error_t, hs_database_info, const hs_database_t *db, char **info);
+CONNECT_ARGS_1(hs_error_t, hs_database_info, db, info);
+CONNECT_DISPATCH_2(hs_error_t, hs_database_info, const hs_database_t *db, char **info);
+CONNECT_ARGS_3(hs_error_t, hs_database_info, db, info);
 
 CREATE_DISPATCH(hs_error_t, hs_copy_stream, hs_stream_t **to_id,
                 const hs_stream_t *from_id);
+CONNECT_ARGS_1(hs_error_t, hs_copy_stream, to_id, from_id);
+CONNECT_DISPATCH_2(hs_error_t, hs_copy_stream, hs_stream_t **to_id,
+                const hs_stream_t *from_id);
+CONNECT_ARGS_3(hs_error_t, hs_copy_stream, to_id, from_id);
 
 CREATE_DISPATCH(hs_error_t, hs_reset_stream, hs_stream_t *id,
                 unsigned int flags, hs_scratch_t *scratch,
                 match_event_handler onEvent, void *context);
+CONNECT_ARGS_1(hs_error_t, hs_reset_stream, id, flags, scratch, onEvent, context);
+CONNECT_DISPATCH_2(hs_error_t, hs_reset_stream, hs_stream_t *id,
+                unsigned int flags, hs_scratch_t *scratch,
+                match_event_handler onEvent, void *context);
+CONNECT_ARGS_3(hs_error_t, hs_reset_stream, id, flags, scratch, onEvent, context);
 
 CREATE_DISPATCH(hs_error_t, hs_reset_and_copy_stream, hs_stream_t *to_id,
                 const hs_stream_t *from_id, hs_scratch_t *scratch,
                 match_event_handler onEvent, void *context);
+CONNECT_ARGS_1(hs_error_t, hs_reset_and_copy_stream, to_id, from_id, scratch, onEvent, context);
+CONNECT_DISPATCH_2(hs_error_t, hs_reset_and_copy_stream, hs_stream_t *to_id,
+                const hs_stream_t *from_id, hs_scratch_t *scratch,
+                match_event_handler onEvent, void *context);
+CONNECT_ARGS_3(hs_error_t, hs_reset_and_copy_stream, to_id, from_id, scratch, onEvent, context);
 
 CREATE_DISPATCH(hs_error_t, hs_serialize_database, const hs_database_t *db,
                 char **bytes, size_t *length);
+CONNECT_ARGS_1(hs_error_t, hs_serialize_database, db, bytes, length);
+CONNECT_DISPATCH_2(hs_error_t, hs_serialize_database, const hs_database_t *db,
+                char **bytes, size_t *length);
+CONNECT_ARGS_3(hs_error_t, hs_serialize_database, db, bytes, length);
 
 CREATE_DISPATCH(hs_error_t, hs_deserialize_database, const char *bytes,
                 const size_t length, hs_database_t **db);
+CONNECT_ARGS_1(hs_error_t, hs_deserialize_database, bytes, length, db);
+CONNECT_DISPATCH_2(hs_error_t, hs_deserialize_database, const char *bytes,
+                const size_t length, hs_database_t **db);
+CONNECT_ARGS_3(hs_error_t, hs_deserialize_database, bytes, length, db);
 
 CREATE_DISPATCH(hs_error_t, hs_deserialize_database_at, const char *bytes,
                 const size_t length, hs_database_t *db);
+CONNECT_ARGS_1(hs_error_t, hs_deserialize_database_at, bytes, length, db);
+CONNECT_DISPATCH_2(hs_error_t, hs_deserialize_database_at, const char *bytes,
+                const size_t length, hs_database_t *db);
+CONNECT_ARGS_3(hs_error_t, hs_deserialize_database_at, bytes, length, db);
 
 CREATE_DISPATCH(hs_error_t, hs_serialized_database_info, const char *bytes,
                 size_t length, char **info);
+CONNECT_ARGS_1(hs_error_t, hs_serialized_database_info, bytes, length, info);
+CONNECT_DISPATCH_2(hs_error_t, hs_serialized_database_info, const char *bytes,
+                size_t length, char **info);
+CONNECT_ARGS_3(hs_error_t, hs_serialized_database_info, bytes, length, info);
 
 CREATE_DISPATCH(hs_error_t, hs_serialized_database_size, const char *bytes,
                 const size_t length, size_t *deserialized_size);
+CONNECT_ARGS_1(hs_error_t, hs_serialized_database_size, bytes, length, deserialized_size);
+CONNECT_DISPATCH_2(hs_error_t, hs_serialized_database_size, const char *bytes,
+                const size_t length, size_t *deserialized_size);
+CONNECT_ARGS_3(hs_error_t, hs_serialized_database_size, bytes, length, deserialized_size);
 
 CREATE_DISPATCH(hs_error_t, hs_compress_stream, const hs_stream_t *stream,
                 char *buf, size_t buf_space, size_t *used_space);
+CONNECT_ARGS_1(hs_error_t, hs_compress_stream, stream,
+                buf, buf_space, used_space);
+CONNECT_DISPATCH_2(hs_error_t, hs_compress_stream, const hs_stream_t *stream,
+                char *buf, size_t buf_space, size_t *used_space);
+CONNECT_ARGS_3(hs_error_t, hs_compress_stream, stream,
+                buf, buf_space, used_space);
 
 CREATE_DISPATCH(hs_error_t, hs_expand_stream, const hs_database_t *db,
                 hs_stream_t **stream, const char *buf,size_t buf_size);
+CONNECT_ARGS_1(hs_error_t, hs_expand_stream, db, stream, buf,buf_size);
+CONNECT_DISPATCH_2(hs_error_t, hs_expand_stream, const hs_database_t *db,
+                hs_stream_t **stream, const char *buf,size_t buf_size);
+CONNECT_ARGS_3(hs_error_t, hs_expand_stream, db, stream, buf,buf_size);
 
 CREATE_DISPATCH(hs_error_t, hs_reset_and_expand_stream, hs_stream_t *to_stream,
                 const char *buf, size_t buf_size, hs_scratch_t *scratch,
                 match_event_handler onEvent, void *context);
+CONNECT_ARGS_1(hs_error_t, hs_reset_and_expand_stream, to_stream,
+                buf, buf_size, scratch, onEvent, context);
+CONNECT_DISPATCH_2(hs_error_t, hs_reset_and_expand_stream, hs_stream_t *to_stream,
+                const char *buf, size_t buf_size, hs_scratch_t *scratch,
+                match_event_handler onEvent, void *context);
+CONNECT_ARGS_3(hs_error_t, hs_reset_and_expand_stream, to_stream,
+                buf, buf_size, scratch, onEvent, context);
 
 /** INTERNALS **/
 
 CREATE_DISPATCH(u32, Crc32c_ComputeBuf, u32 inCrc32, const void *buf, size_t bufLen);
+CONNECT_ARGS_1(u32, Crc32c_ComputeBuf, inCrc32, buf, bufLen);
+CONNECT_DISPATCH_2(u32, Crc32c_ComputeBuf, u32 inCrc32, const void *buf, size_t bufLen);
+CONNECT_ARGS_3(u32, Crc32c_ComputeBuf, inCrc32, buf, bufLen);
 
 #pragma GCC diagnostic pop
 #pragma GCC diagnostic pop
+