bin: move memaslap to contrib

[awesomized/libmemcached] / src / bin / contrib / memaslap / ms_task.h

diff --git a/src/bin/contrib/memaslap/ms_task.h b/src/bin/contrib/memaslap/ms_task.h
new file mode 100644 (file)
index 0000000..add33f4
--- /dev/null
+++ b/src/bin/contrib/memaslap/ms_task.h
@@ -0,0 +1,93 @@
+/*
+    +--------------------------------------------------------------------+
+    | libmemcached - C/C++ Client Library for memcached                  |
+    +--------------------------------------------------------------------+
+    | Redistribution and use in source and binary forms, with or without |
+    | modification, are permitted under the terms of the BSD license.    |
+    | You should have received a copy of the license in a bundled file   |
+    | named LICENSE; in case you did not receive a copy you can review   |
+    | the terms online at: https://opensource.org/licenses/BSD-3-Clause  |
+    +--------------------------------------------------------------------+
+    | Copyright (c) 2006-2014 Brian Aker   https://datadifferential.com/ |
+    | Copyright (c) 2020 Michael Wallner   <mike@php.net>                |
+    +--------------------------------------------------------------------+
+*/
+
+#ifndef MS_TASK_H
+#define MS_TASK_H
+
+#include <sys/types.h>
+#include <stdint.h>
+#if !defined(__cplusplus)
+#  include <stdbool.h>
+#endif
+#include <time.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#define UNIT_ITEMS_COUNT  1024               /* each window unit has 1024 items */
+#define KEY_PREFIX_SIZE   (sizeof(uint64_t)) /* key prefix length: 8 bytes */
+#define INVALID_OFFSET    (-1)               /* invalid offset in the character table */
+#define FIXED_EXPIRE_TIME 60                 /* default expire time is 60s */
+#define EXPIRE_TIME_ERROR 5                  /* default expire time error is 5s */
+
+/* information of a task item(object) */
+typedef struct task_item {
+  uint64_t key_prefix;   /* prefix of the key, 8 bytes, binary */
+  int key_size;          /* key size */
+  int key_suffix_offset; /* suffix offset in the global character table */
+
+  int value_size;   /* data size */
+  int value_offset; /* data offset in the global character table */
+
+  time_t client_time; /* the current client time */
+  int exp_time;       /* expire time */
+} ms_task_item_t;
+
+/* task item for multi-get */
+typedef struct mlget_task_item {
+  ms_task_item_t *item; /* task item */
+  bool verify;          /* whether verify data or not */
+  bool finish_verify;   /* whether finish data verify or not */
+  bool get_miss;        /* whether get miss or not */
+} ms_mlget_task_item_t;
+
+/* information of multi-get task */
+typedef struct mlget_task {
+  ms_mlget_task_item_t *mlget_item; /* multi-get task array */
+  int mlget_num;                    /* how many tasks in mlget_task array */
+  int value_index;                  /* the nth value received by the connect, for multi-get */
+} ms_mlget_task_t;
+
+/* structure used to store the state of the running task */
+typedef struct task {
+  int cmd;              /* command name */
+  bool verify;          /* whether verify data or not */
+  bool finish_verify;   /* whether finish data verify or not */
+  bool get_miss;        /* whether get miss or not */
+  ms_task_item_t *item; /* task item */
+
+  /* counter for command distribution adjustment */
+  uint64_t get_opt;       /* number of total get operations */
+  uint64_t set_opt;       /* number of total set operations, no including warmup set count */
+  int cycle_undo_get;     /* number of undo get in an adjustment cycle */
+  int cycle_undo_set;     /* number of undo set in an adjustment cycle */
+  uint64_t verified_get;  /* number of total verified get operations */
+  uint64_t overwrite_set; /* number of total overwrite set operations */
+} ms_task_t;
+
+struct conn;
+
+/* the state machine call the function to execute task.*/
+int ms_exec_task(struct conn *c);
+
+/* calculate the difference value of two time points */
+int64_t ms_time_diff(struct timeval *start_time, struct timeval *end_time);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* end of MS_TASK_H */