55 lines
1.6 KiB
C
55 lines
1.6 KiB
C
/*-------------------------------------------------------------------------
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*
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* timeout.h
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* Routines to multiplex SIGALRM interrupts for multiple timeout reasons.
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*
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*
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* Portions Copyright (c) 1996-2012, PostgreSQL Global Development Group
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* Portions Copyright (c) 1994, Regents of the University of California
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*
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* src/include/utils/timeout.h
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*
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*-------------------------------------------------------------------------
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*/
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#ifndef TIMEOUT_H
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#define TIMEOUT_H
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#include "datatype/timestamp.h"
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/*
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* Identifiers for timeout reasons. Note that in case multiple timeouts
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* trigger at the same time, they are serviced in the order of this enum.
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*/
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typedef enum TimeoutId
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{
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/* Predefined timeout reasons */
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STARTUP_PACKET_TIMEOUT,
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DEADLOCK_TIMEOUT,
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STATEMENT_TIMEOUT,
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STANDBY_DEADLOCK_TIMEOUT,
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STANDBY_TIMEOUT,
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/* First user-definable timeout reason */
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USER_TIMEOUT,
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/* Maximum number of timeout reasons */
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MAX_TIMEOUTS = 16
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} TimeoutId;
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/* callback function signature */
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typedef void (*timeout_handler) (void);
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/* timeout setup */
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extern void InitializeTimeouts(void);
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extern TimeoutId RegisterTimeout(TimeoutId id, timeout_handler handler);
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/* timeout operation */
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extern void enable_timeout_after(TimeoutId id, int delay_ms);
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extern void enable_timeout_at(TimeoutId id, TimestampTz fin_time);
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extern void disable_timeout(TimeoutId id, bool keep_indicator);
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extern void disable_all_timeouts(bool keep_indicators);
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/* accessors */
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extern bool get_timeout_indicator(TimeoutId id);
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extern TimestampTz get_timeout_start_time(TimeoutId id);
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#endif /* TIMEOUT_H */
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