SERVER-15953: add wiredtiger to third_party

1 files changed, 133 insertions, 0 deletions

diff --git a/src/third_party/wiredtiger/src/include/buf.i b/src/third_party/wiredtiger/src/include/buf.i
new file mode 100644
index 00000000000..09bee9ff831
--- /dev/null
+++ b/src/third_party/wiredtiger/src/include/buf.i
@@ -0,0 +1,133 @@
+/*-
+ * Copyright (c) 2008-2014 WiredTiger, Inc.
+ *	All rights reserved.
+ *
+ * See the file LICENSE for redistribution information.
+ */
+
+/*
+ * __wt_buf_grow --
+ *	Grow a buffer that may be in-use, and ensure that all data is local to
+ * the buffer.
+ */
+static inline int
+__wt_buf_grow(WT_SESSION_IMPL *session, WT_ITEM *buf, size_t size)
+{
+	return (size > buf->memsize || !WT_DATA_IN_ITEM(buf) ?
+	    __wt_buf_grow_worker(session, buf, size) : 0);
+}
+
+/*
+ * __wt_buf_extend --
+ *	Grow a buffer that's currently in-use.
+ */
+static inline int
+__wt_buf_extend(WT_SESSION_IMPL *session, WT_ITEM *buf, size_t size)
+{
+	/*
+	 * The difference between __wt_buf_grow and __wt_buf_extend is that the
+	 * latter is expected to be called repeatedly for the same buffer, and
+	 * so grows the buffer exponentially to avoid repeated costly calls to
+	 * realloc.
+	 */
+	return (size > buf->memsize ?
+	    __wt_buf_grow(session, buf, WT_MAX(size, 2 * buf->memsize)) : 0);
+}
+
+/*
+ * __wt_buf_init --
+ *	Initialize a buffer at a specific size.
+ */
+static inline int
+__wt_buf_init(WT_SESSION_IMPL *session, WT_ITEM *buf, size_t size)
+{
+	buf->data = buf->mem;
+	buf->size = 0;				/* Clear existing data length */
+	WT_RET(__wt_buf_grow(session, buf, size));
+
+	return (0);
+}
+
+/*
+ * __wt_buf_initsize --
+ *	Initialize a buffer at a specific size, and set the data length.
+ */
+static inline int
+__wt_buf_initsize(WT_SESSION_IMPL *session, WT_ITEM *buf, size_t size)
+{
+	buf->data = buf->mem;
+	buf->size = 0;				/* Clear existing data length */
+	WT_RET(__wt_buf_grow(session, buf, size));
+	buf->size = size;			/* Set the data length. */
+
+	return (0);
+}
+
+/*
+ * __wt_buf_set --
+ *	Set the contents of the buffer.
+ */
+static inline int
+__wt_buf_set(
+    WT_SESSION_IMPL *session, WT_ITEM *buf, const void *data, size_t size)
+{
+	/* Ensure the buffer is large enough. */
+	WT_RET(__wt_buf_initsize(session, buf, size));
+
+	/* Copy the data, allowing for overlapping strings. */
+	memmove(buf->mem, data, size);
+
+	return (0);
+}
+
+/*
+ * __wt_buf_setstr --
+ *	Set the contents of the buffer to a NUL-terminated string.
+ */
+static inline int
+__wt_buf_setstr(WT_SESSION_IMPL *session, WT_ITEM *buf, const char *s)
+{
+	return (__wt_buf_set(session, buf, s, strlen(s) + 1));
+}
+
+/*
+ * __wt_buf_set_printable --
+ *	Set the contents of the buffer to a printable representation of a
+ * byte string.
+ */
+static inline int
+__wt_buf_set_printable(
+    WT_SESSION_IMPL *session, WT_ITEM *buf, const void *from_arg, size_t size)
+{
+	return (__wt_raw_to_esc_hex(session, from_arg, size, buf));
+}
+
+/*
+ * __wt_buf_free --
+ *	Free a buffer.
+ */
+static inline void
+__wt_buf_free(WT_SESSION_IMPL *session, WT_ITEM *buf)
+{
+	__wt_free(session, buf->mem);
+
+	memset(buf, 0, sizeof(WT_ITEM));
+}
+
+/*
+ * __wt_scr_free --
+ *	Release a scratch buffer.
+ */
+static inline void
+__wt_scr_free(WT_ITEM **bufp)
+{
+	WT_ITEM *buf;
+
+	if ((buf = *bufp) != NULL) {
+		*bufp = NULL;
+
+		buf->data = NULL;
+		buf->size = 0;
+		F_CLR(buf, WT_ITEM_INUSE);
+	}
+}