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A RW lock has been added to the vars structure to protect each list of variables. And a global RW lock is used to protect registered names. When a varibable is fetched, we duplicate sample data because the variable could be modified by another thread.
38 lines
668 B
C
38 lines
668 B
C
#ifndef _TYPES_VARS_H
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#define _TYPES_VARS_H
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#include <common/mini-clist.h>
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#include <common/hathreads.h>
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#include <types/sample.h>
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enum vars_scope {
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SCOPE_SESS = 0,
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SCOPE_TXN,
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SCOPE_REQ,
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SCOPE_RES,
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SCOPE_PROC,
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};
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struct vars {
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struct list head;
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enum vars_scope scope;
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unsigned int size;
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#ifdef USE_THREAD
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HA_RWLOCK_T rwlock;
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#endif
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};
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/* This struct describes a variable. */
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struct var_desc {
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const char *name; /* Contains the normalized variable name. */
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enum vars_scope scope;
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};
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struct var {
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struct list l; /* Used for chaining vars. */
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const char *name; /* Contains the variable name. */
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struct sample_data data; /* data storage. */
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};
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#endif
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