rwlock.h File Reference

#include <isc/condition.h>
#include <isc/lang.h>
#include <isc/platform.h>
#include <isc/types.h>

Go to the source code of this file.

Data Structures
struct	isc_rwlock
Defines
#define	ISC_RWLOCK_H   1
Enumerations
enum	isc_rwlocktype_t { isc_rwlocktype_none = 0, isc_rwlocktype_read, isc_rwlocktype_write }
Functions
isc_result_t	isc_rwlock_init (isc_rwlock_t *rwl, unsigned int read_quota, unsigned int write_quota)
isc_result_t	isc_rwlock_lock (isc_rwlock_t *rwl, isc_rwlocktype_t type)
isc_result_t	isc_rwlock_trylock (isc_rwlock_t *rwl, isc_rwlocktype_t type)
isc_result_t	isc_rwlock_unlock (isc_rwlock_t *rwl, isc_rwlocktype_t type)
isc_result_t	isc_rwlock_tryupgrade (isc_rwlock_t *rwl)
void	isc_rwlock_downgrade (isc_rwlock_t *rwl)
void	isc_rwlock_destroy (isc_rwlock_t *rwl)

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Detailed Description

Definition in file rwlock.h.

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Define Documentation

#define ISC_RWLOCK_H   1

Definition at line 21 of file rwlock.h.

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Enumeration Type Documentation

enum isc_rwlocktype_t

Enumerator:

isc_rwlocktype_none
isc_rwlocktype_read
isc_rwlocktype_write

Definition at line 32 of file rwlock.h.

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Function Documentation

isc_result_t isc_rwlock_init	(	isc_rwlock_t *	rwl,
		unsigned int	read_quota,
		unsigned int	write_quota
	)

Definition at line 724 of file rwlock.c.

References isc_rwlock::active, ISC_R_SUCCESS, isc_rwlocktype_read, isc_rwlock::magic, REQUIRE, RWLOCK_MAGIC, isc_rwlock::type, and UNUSED.

Referenced by create_stats(), dns_dbtable_create(), dns_fwdtable_create(), dns_keytable_create(), dns_ntatable_create(), dns_rbtdb_create(), dns_resolver_create(), dns_tsigkeyring_create(), dns_zonemgr_create(), dns_zt_create(), ISC_LIST(), and main().

isc_result_t isc_rwlock_lock	(	isc_rwlock_t *	rwl,
		isc_rwlocktype_t	type
	)

Definition at line 740 of file rwlock.c.

References isc_rwlock::active, ISC_R_LOCKBUSY, ISC_R_SUCCESS, isc_rwlocktype_read, isc_rwlocktype_write, REQUIRE, isc_rwlock::type, and VALID_RWLOCK.

Referenced by copy_counters(), decrementcounter(), incrementcounter(), isc_rwlock_trylock(), isc_stats_set(), and keythatsigned().

isc_result_t isc_rwlock_trylock	(	isc_rwlock_t *	rwl,
		isc_rwlocktype_t	type
	)

Definition at line 758 of file rwlock.c.

References isc_rwlock_lock().

Referenced by decrement_reference().

isc_result_t isc_rwlock_unlock	(	isc_rwlock_t *	rwl,
		isc_rwlocktype_t	type
	)

Definition at line 789 of file rwlock.c.

References isc_rwlock::active, INSIST, ISC_R_SUCCESS, REQUIRE, isc_rwlock::type, UNUSED, and VALID_RWLOCK.

Referenced by copy_counters(), decrementcounter(), incrementcounter(), isc_stats_set(), and keythatsigned().

isc_result_t isc_rwlock_tryupgrade

(

isc_rwlock_t *

rwl

)

Definition at line 763 of file rwlock.c.

References isc_rwlock::active, ISC_R_LOCKBUSY, ISC_R_SUCCESS, isc_rwlocktype_read, isc_rwlocktype_write, REQUIRE, isc_rwlock::type, and VALID_RWLOCK.

Referenced by decrement_reference().

void isc_rwlock_downgrade

(

isc_rwlock_t *

rwl

)

Definition at line 779 of file rwlock.c.

References isc_rwlock::active, isc_rwlocktype_read, isc_rwlocktype_write, REQUIRE, isc_rwlock::type, and VALID_RWLOCK.

Referenced by decrement_reference().

void isc_rwlock_destroy

(

isc_rwlock_t *

rwl

)

Definition at line 802 of file rwlock.c.

References isc_rwlock::active, isc_rwlock::magic, and REQUIRE.

Referenced by dbtable_free(), destroy(), destroyring(), dns_fwdtable_destroy(), dns_keytable_detach(), dns_ntatable_detach(), dns_rbtdb_create(), dns_resolver_create(), dns_tsigkeyring_create(), dns_zonemgr_create(), free_rbtdb(), isc_stats_detach(), zonemgr_free(), and zt_destroy().

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