1 files changed, 97 insertions, 0 deletions
diff --git a/libsn/sn-util.h b/libsn/sn-util.h
new file mode 100644
index 0000000..4da3c1e
--- /dev/null
+++ b/libsn/sn-util.h
@@ -0,0 +1,97 @@
+/* 
+ * Copyright (C) 2002 Red Hat, Inc.
+ * 
+ * Permission is hereby granted, free of charge, to any person
+ * obtaining a copy of this software and associated documentation
+ * files (the "Software"), to deal in the Software without
+ * restriction, including without limitation the rights to use, copy,
+ * modify, merge, publish, distribute, sublicense, and/or sell copies
+ * of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ * 
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ * 
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+
+#ifndef __LF_UTIL_H__
+#define __LF_UTIL_H__
+
+/* Guard C code in headers, while including them from C++ */
+#ifdef  __cplusplus
+# define LF_BEGIN_DECLS  extern "C" {
+# define LF_END_DECLS    }
+#else
+# define LF_BEGIN_DECLS
+# define LF_END_DECLS
+#endif
+
+LF_BEGIN_DECLS
+
+typedef unsigned long lf_size_t;
+typedef int           lf_bool_t;
+
+/* Padding in vtables */
+typedef void (* LfPaddingFunc) (void);
+/* Free data */
+typedef void (* LfFreeFunc)    (void *data);
+
+void* lf_malloc      (lf_size_t  n_bytes);
+void* lf_malloc0     (lf_size_t  n_bytes);
+void* lf_realloc     (void      *mem,
+                      lf_size_t  n_bytes);
+void  lf_free        (void      *mem);
+void* lf_try_malloc  (lf_size_t  n_bytes);
+void* lf_try_realloc (void      *mem,
+                      lf_size_t  n_bytes);
+
+/* Convenience memory allocators
+ */
+#define lf_new(struct_type, n_structs)		\
+    ((struct_type *) lf_malloc (((lf_size_t) sizeof (struct_type)) * ((lf_size_t) (n_structs))))
+#define lf_new0(struct_type, n_structs)		\
+    ((struct_type *) lf_malloc0 (((lf_size_t) sizeof (struct_type)) * ((lf_size_t) (n_structs))))
+#define lf_renew(struct_type, mem, n_structs)	\
+    ((struct_type *) lf_realloc ((mem), ((lf_size_t) sizeof (struct_type)) * ((lf_size_t) (n_structs))))
+
+
+/* Memory allocation virtualization, so you can override memory
+ * allocation behavior.  lf_mem_set_vtable() has to be the very first
+ * liblf function called if being used
+ */
+typedef struct
+{
+  void* (*malloc)      (lf_size_t    n_bytes);
+  void* (*realloc)     (void        *mem,
+                        lf_size_t    n_bytes);
+  void  (*free)        (void        *mem);
+  /* optional */
+  void* (*calloc)      (lf_size_t    n_blocks,
+                        lf_size_t    n_block_bytes);
+  void* (*try_malloc)  (lf_size_t    n_bytes);
+  void* (*try_realloc) (void        *mem,
+                        lf_size_t    n_bytes);
+  LfPaddingFunc        padding1;
+  LfPaddingFunc        padding2;
+} LfMemVTable;
+
+void      lf_mem_set_vtable       (LfMemVTable *vtable);
+lf_bool_t lf_mem_is_system_malloc (void);
+
+typedef lf_bool_t (* LfUtf8ValidateFunc) (const char *str,
+                                          int         max_len);
+
+void lf_set_utf8_validator (LfUtf8ValidateFunc validate_func);
+
+LF_END_DECLS
+
+#endif /* __LF_UTIL_H__ */