1 files changed, 104 insertions, 0 deletions
diff --git a/src/util/string_buffer.h b/src/util/string_buffer.h
new file mode 100644
index 00000000000..eaaf5f33dfd
--- /dev/null
+++ b/src/util/string_buffer.h
@@ -0,0 +1,104 @@
+/*
+ * Copyright © 2017 Thomas Helland
+ *
+ * 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 (including the next
+ * paragraph) 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 _STRING_BUFFER_H
+#define _STRING_BUFFER_H
+
+#include "ralloc.h"
+#include "u_string.h"
+#include <stdbool.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <string.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+struct _mesa_string_buffer {
+   char *buf;
+   uint32_t length;
+   uint32_t capacity;
+};
+
+struct _mesa_string_buffer *
+_mesa_string_buffer_create(void *mem_ctx, uint32_t initial_capacity);
+
+static inline void
+_mesa_string_buffer_destroy(struct _mesa_string_buffer *str)
+{
+   ralloc_free(str);
+}
+
+bool
+_mesa_string_buffer_append_all(struct _mesa_string_buffer *str,
+                               uint32_t num_args, ...);
+bool
+_mesa_string_buffer_append_len(struct _mesa_string_buffer *str,
+                               const char *c, uint32_t len);
+
+static inline bool
+_mesa_string_buffer_append_char(struct _mesa_string_buffer *str, char c)
+{
+   return _mesa_string_buffer_append_len(str, &c, 1);
+}
+
+static inline bool
+_mesa_string_buffer_append(struct _mesa_string_buffer *str, const char *c)
+{
+   return _mesa_string_buffer_append_len(str, c, strlen(c));
+}
+
+static inline void
+_mesa_string_buffer_clear(struct _mesa_string_buffer *str)
+{
+   str->length = 0;
+   str->buf[str->length] = '\0';
+}
+
+static inline void
+_mesa_string_buffer_crimp_to_fit(struct _mesa_string_buffer *str)
+{
+    char *crimped =
+       (char *) reralloc_array_size(str, str->buf, sizeof(char),
+                                    str->capacity);
+    if (!crimped)
+       return;
+
+    str->capacity = str->length + 1;
+    str->buf = crimped;
+}
+
+bool
+_mesa_string_buffer_vprintf(struct _mesa_string_buffer *str,
+                            const char *format, va_list args);
+
+bool
+_mesa_string_buffer_printf(struct _mesa_string_buffer *str,
+                            const char *format, ...);
+
+#ifdef __cplusplus
+} /* extern "C" */
+#endif
+
+#endif /* _STRING_BUFFER_H */