[CLEANUP] proxy: move last lb-specific bits to their respective files

The lbprm structure has moved to backend.h, where it should be, and
all algo-specific types and declarations have moved to their specific
files. The proxy struct is now much more readable.
diff --git a/include/types/lb_fwrr.h b/include/types/lb_fwrr.h
new file mode 100644
index 0000000..600a511
--- /dev/null
+++ b/include/types/lb_fwrr.h
@@ -0,0 +1,51 @@
+/*
+ * include/types/lb_fwrr.h
+ * Types for Fast Weighted Round Robin load balancing algorithm.
+ *
+ * Copyright (C) 2000-2009 Willy Tarreau - w@1wt.eu
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation, version 2.1
+ * exclusively.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+ */
+
+#ifndef _TYPES_LB_FWRR_H
+#define _TYPES_LB_FWRR_H
+
+#include <common/config.h>
+#include <common/ebtree.h>
+
+/* This structure is used to apply fast weighted round robin on a server group */
+struct fwrr_group {
+	struct eb_root curr;    /* tree for servers in "current" time range */
+	struct eb_root t0, t1;  /* "init" and "next" servers */
+	struct eb_root *init;   /* servers waiting to be placed */
+	struct eb_root *next;   /* servers to be placed at next run */
+	int curr_pos;           /* current position in the tree */
+	int curr_weight;        /* total weight of the current time range */
+	int next_weight;        /* total weight of the next time range */
+};
+
+struct lb_fwrr {
+	struct fwrr_group act;	/* weighted round robin on the active servers */
+	struct fwrr_group bck;	/* weighted round robin on the backup servers */
+};
+
+#endif /* _TYPES_LB_FWRR_H */
+
+/*
+ * Local variables:
+ *  c-indent-level: 8
+ *  c-basic-offset: 8
+ * End:
+ */