1 files changed, 89 insertions, 0 deletions
diff --git a/scheduler/alu/src/alu.h b/scheduler/alu/src/alu.h
new file mode 100644
index 00000000000..a958bb4d298
--- /dev/null
+++ b/scheduler/alu/src/alu.h
@@ -0,0 +1,89 @@
+/*
+   Copyright (c) 2006, 2007, 2008 Z RESEARCH, Inc. <http://www.zresearch.com>
+   This file is part of GlusterFS.
+
+   GlusterFS is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published
+   by the Free Software Foundation; either version 3 of the License,
+   or (at your option) any later version.
+
+   GlusterFS 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
+   General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see
+   <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef _ALU_H
+#define _ALU_H
+
+#ifndef _CONFIG_H
+#define _CONFIG_H
+#include "config.h"
+#endif
+
+#include "scheduler.h"
+
+struct alu_sched;
+
+struct alu_sched_struct {
+  xlator_t *xl;
+  struct xlator_stats stats;
+  unsigned char eligible;
+};
+
+// Write better name for these functions
+struct alu_limits {
+  struct alu_limits *next;
+  int64_t (*max_value) (struct xlator_stats *); /* Max limit, specified by the user */
+  int64_t (*min_value) (struct xlator_stats *); /* Min limit, specified by the user */
+  int64_t (*cur_value) (struct xlator_stats *); /* Current values of variables got from stats call */
+};
+
+struct alu_threshold {
+  struct alu_threshold *next;
+  int64_t (*diff_value) (struct xlator_stats *max, struct xlator_stats *min); /* Diff b/w max and min */
+  int64_t (*entry_value) (struct xlator_stats *); /* Limit specified user */
+  int64_t (*exit_value) (struct xlator_stats *); /* Exit point for the limit */
+  int64_t (*sched_value) (struct xlator_stats *); /* This will return the index of the child area */
+};
+
+struct alu_sched_node {
+  struct alu_sched_node *next;
+  int32_t index;
+};
+
+struct alu_sched {
+  struct alu_limits *limits_fn;
+  struct alu_threshold *threshold_fn;
+  struct alu_sched_struct *array;
+  struct alu_sched_node *sched_node;
+  struct alu_threshold *sched_method;
+  struct xlator_stats max_limit;
+  struct xlator_stats min_limit;
+  struct xlator_stats entry_limit;
+  struct xlator_stats exit_limit;
+  struct xlator_stats spec_limit;     /* User given limit */
+
+  pthread_mutex_t alu_mutex;
+  struct timeval last_stat_fetch;
+  uint32_t refresh_interval;      /* in seconds */
+  uint32_t refresh_create_count;  /* num-file-create */
+
+  int32_t sched_nodes_pending;
+
+  int32_t sched_index;  /* used for round robin scheduling in case of many nodes getting the criteria match. */
+  int32_t child_count;
+
+};
+
+struct _alu_local_t {
+  int32_t call_count;
+};
+
+typedef struct _alu_local_t alu_local_t;
+
+#endif /* _ALU_H */