Streams: 12 commits squashed into the initial Streams implementation.

1 files changed, 61 insertions, 0 deletions

diff --git a/src/listpack.h b/src/listpack.h
new file mode 100644
index 000000000..af67b4b41
--- /dev/null
+++ b/src/listpack.h
@@ -0,0 +1,61 @@
+/* Listpack -- A lists of strings serialization format
+ *
+ * This file implements the specification you can find at:
+ *
+ *  https://github.com/antirez/listpack
+ *
+ * Copyright (c) 2017, Salvatore Sanfilippo <antirez at gmail dot com>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ *   * Redistributions of source code must retain the above copyright notice,
+ *     this list of conditions and the following disclaimer.
+ *   * Redistributions in binary form must reproduce the above copyright
+ *     notice, this list of conditions and the following disclaimer in the
+ *     documentation and/or other materials provided with the distribution.
+ *   * Neither the name of Redis nor the names of its contributors may be used
+ *     to endorse or promote products derived from this software without
+ *     specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef __LISTPACK_H
+#define __LISTPACK_H
+
+#include <stdint.h>
+
+#define LP_INTBUF_SIZE 21 /* 20 digits of -2^63 + 1 null term = 21. */
+
+/* lpInsert() where argument possible values: */
+#define LP_BEFORE 0
+#define LP_AFTER 1
+#define LP_REPLACE 2
+
+unsigned char *lpNew(void);
+void lpFree(unsigned char *lp);
+unsigned char *lpInsert(unsigned char *lp, unsigned char *ele, uint32_t size, unsigned char *p, int where, unsigned char **newp);
+unsigned char *lpAppend(unsigned char *lp, unsigned char *ele, uint32_t size);
+unsigned char *lpDelete(unsigned char *lp, unsigned char *p, unsigned char **newp);
+uint32_t lpLength(unsigned char *lp);
+unsigned char *lpGet(unsigned char *p, int64_t *count, unsigned char *intbuf);
+unsigned char *lpFirst(unsigned char *lp);
+unsigned char *lpLast(unsigned char *lp);
+unsigned char *lpNext(unsigned char *lp, unsigned char *p);
+unsigned char *lpPrev(unsigned char *lp, unsigned char *p);
+uint32_t lpBytes(unsigned char *lp);
+unsigned char *lpSeek(unsigned char *lp, long index);
+
+#endif