ofp-util: Work on decoding OF1.1 flow_mods.

[openvswitch] / lib / dynamic-string.h

diff --git a/lib/dynamic-string.h b/lib/dynamic-string.h
index eebbdbfe872b36c9e0603ae77bcfcaa204bf7b5c..098caafe72e713b4acddb9a0366a1167634b4045 100644 (file)
--- a/lib/dynamic-string.h
+++ b/lib/dynamic-string.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2008, 2009, 2010 Nicira Networks.
+ * Copyright (c) 2008, 2009, 2010, 2011, 2012 Nicira, Inc.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -26,6 +26,13 @@
 
 struct tm;
 
+/* A "dynamic string", that is, a buffer that can be used to construct a
+ * string across a series of operations that extend or modify it.
+ *
+ * The 'string' member does not always point to a null-terminated string.
+ * Initially it is NULL, and even when it is nonnull, some operations do not
+ * ensure that it is null-terminated.  Use ds_cstr() to ensure that memory is
+ * allocated for the string and that it is null-terminated. */
 struct ds {
     char *string;       /* Null-terminated string. */
     size_t length;      /* Bytes used, not including null terminator. */
@@ -39,7 +46,7 @@ void ds_clear(struct ds *);
 void ds_truncate(struct ds *, size_t new_length);
 void ds_reserve(struct ds *, size_t min_length);
 char *ds_put_uninit(struct ds *, size_t n);
-void ds_put_char(struct ds *, char);
+static inline void ds_put_char(struct ds *, char);
 void ds_put_utf8(struct ds *, int uc);
 void ds_put_char_multiple(struct ds *, char, size_t n);
 void ds_put_buffer(struct ds *, const char *, size_t n);
@@ -49,11 +56,13 @@ void ds_put_format(struct ds *, const char *, ...) PRINTF_FORMAT(2, 3);
 void ds_put_format_valist(struct ds *, const char *, va_list)
     PRINTF_FORMAT(2, 0);
 void ds_put_printable(struct ds *, const char *, size_t);
-void ds_put_strftime(struct ds *, const char *, const struct tm *)
+void ds_put_strftime(struct ds *, const char *, bool utc)
     STRFTIME_FORMAT(2);
 void ds_put_hex_dump(struct ds *ds, const void *buf_, size_t size,
                      uintptr_t ofs, bool ascii);
 int ds_get_line(struct ds *, FILE *);
+int ds_get_preprocessed_line(struct ds *, FILE *);
+int ds_get_test_line(struct ds *, FILE *);
 
 char *ds_cstr(struct ds *);
 const char *ds_cstr_ro(const struct ds *);
@@ -63,5 +72,20 @@ void ds_swap(struct ds *, struct ds *);
 
 int ds_last(const struct ds *);
 void ds_chomp(struct ds *, int c);
+\f
+/* Inline functions. */
+
+void ds_put_char__(struct ds *, char);
+
+static inline void
+ds_put_char(struct ds *ds, char c)
+{
+    if (ds->length < ds->allocated) {
+        ds->string[ds->length++] = c;
+        ds->string[ds->length] = '\0';
+    } else {
+        ds_put_char__(ds, c);
+    }
+}
 
 #endif /* dynamic-string.h */