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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-04 17:31:02 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-04 17:31:02 +0000
commitbb12c1fd00eb51118749bbbc69c5596835fcbd3b (patch)
tree88038a98bd31c1b765f3390767a2ec12e37c79ec /deps/lua/src/strbuf.h
parentInitial commit. (diff)
downloadredis-upstream.tar.xz
redis-upstream.zip
Adding upstream version 5:7.0.15.upstream/5%7.0.15upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'deps/lua/src/strbuf.h')
-rw-r--r--deps/lua/src/strbuf.h146
1 files changed, 146 insertions, 0 deletions
diff --git a/deps/lua/src/strbuf.h b/deps/lua/src/strbuf.h
new file mode 100644
index 0000000..c10f83f
--- /dev/null
+++ b/deps/lua/src/strbuf.h
@@ -0,0 +1,146 @@
+/* strbuf - String buffer routines
+ *
+ * Copyright (c) 2010-2012 Mark Pulford <mark@kyne.com.au>
+ *
+ * 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.
+ */
+
+#include <stdlib.h>
+#include <stdarg.h>
+
+/* Size: Total bytes allocated to *buf
+ * Length: String length, excluding optional NULL terminator.
+ * Dynamic: True if created via strbuf_new()
+ */
+
+typedef struct {
+ char *buf;
+ size_t size;
+ size_t length;
+ int dynamic;
+ int reallocs;
+ int debug;
+} strbuf_t;
+
+#ifndef STRBUF_DEFAULT_SIZE
+#define STRBUF_DEFAULT_SIZE 1023
+#endif
+
+/* Initialise */
+extern strbuf_t *strbuf_new(size_t len);
+extern void strbuf_init(strbuf_t *s, size_t len);
+
+/* Release */
+extern void strbuf_free(strbuf_t *s);
+extern char *strbuf_free_to_string(strbuf_t *s, size_t *len);
+
+/* Management */
+extern void strbuf_resize(strbuf_t *s, size_t len);
+static size_t strbuf_empty_length(strbuf_t *s);
+static size_t strbuf_length(strbuf_t *s);
+static char *strbuf_string(strbuf_t *s, size_t *len);
+static void strbuf_ensure_empty_length(strbuf_t *s, size_t len);
+static char *strbuf_empty_ptr(strbuf_t *s);
+static void strbuf_extend_length(strbuf_t *s, size_t len);
+
+/* Update */
+static void strbuf_append_mem(strbuf_t *s, const char *c, size_t len);
+extern void strbuf_append_string(strbuf_t *s, const char *str);
+static void strbuf_append_char(strbuf_t *s, const char c);
+static void strbuf_ensure_null(strbuf_t *s);
+
+/* Reset string for before use */
+static inline void strbuf_reset(strbuf_t *s)
+{
+ s->length = 0;
+}
+
+static inline int strbuf_allocated(strbuf_t *s)
+{
+ return s->buf != NULL;
+}
+
+/* Return bytes remaining in the string buffer
+ * Ensure there is space for a NULL terminator. */
+static inline size_t strbuf_empty_length(strbuf_t *s)
+{
+ return s->size - s->length - 1;
+}
+
+static inline void strbuf_ensure_empty_length(strbuf_t *s, size_t len)
+{
+ if (len > strbuf_empty_length(s))
+ strbuf_resize(s, s->length + len);
+}
+
+static inline char *strbuf_empty_ptr(strbuf_t *s)
+{
+ return s->buf + s->length;
+}
+
+static inline void strbuf_extend_length(strbuf_t *s, size_t len)
+{
+ s->length += len;
+}
+
+static inline size_t strbuf_length(strbuf_t *s)
+{
+ return s->length;
+}
+
+static inline void strbuf_append_char(strbuf_t *s, const char c)
+{
+ strbuf_ensure_empty_length(s, 1);
+ s->buf[s->length++] = c;
+}
+
+static inline void strbuf_append_char_unsafe(strbuf_t *s, const char c)
+{
+ s->buf[s->length++] = c;
+}
+
+static inline void strbuf_append_mem(strbuf_t *s, const char *c, size_t len)
+{
+ strbuf_ensure_empty_length(s, len);
+ memcpy(s->buf + s->length, c, len);
+ s->length += len;
+}
+
+static inline void strbuf_append_mem_unsafe(strbuf_t *s, const char *c, size_t len)
+{
+ memcpy(s->buf + s->length, c, len);
+ s->length += len;
+}
+
+static inline void strbuf_ensure_null(strbuf_t *s)
+{
+ s->buf[s->length] = 0;
+}
+
+static inline char *strbuf_string(strbuf_t *s, size_t *len)
+{
+ if (len)
+ *len = s->length;
+
+ return s->buf;
+}
+
+/* vi:ai et sw=4 ts=4:
+ */