The management of the IP stats per machines. More...

#include "HashData.h"
#include "HashTable.h"
#include "log.h"
#include "nfs_core.h"
#include "nfs_exports.h"
#include "config_parsing.h"
#include "nfs_ip_stats.h"
#include <stdlib.h>
#include <string.h>

Functions
uint32_t	ip_stats_value_hash_func (hash_parameter_t p_hparam, hash_buffer_t buffclef)
uint64_t	ip_stats_rbt_hash_func (hash_parameter_t p_hparam, hash_buffer_t buffclef)
int	compare_ip_stats (hash_buffer_t buff1, hash_buffer_t buff2)
int	display_ip_stats_key (hash_buffer_t pbuff, char str)
int	display_ip_stats_val (hash_buffer_t pbuff, char str)
int	nfs_ip_stats_add (hash_table_t ht_ip_stats, sockaddr_t ipaddr, pool_t *ip_stats_pool)
int	nfs_ip_stats_incr (hash_table_t ht_ip_stats, sockaddr_t ipaddr, unsigned int nfs_prog, unsigned int mnt_prog, struct svc_req *ptr_req)
int	nfs_ip_stats_get (hash_table_t ht_ip_stats, sockaddr_t ipaddr, nfs_ip_stats_t **g)
int	nfs_ip_stats_remove (hash_table_t ht_ip_stats, sockaddr_t ipaddr, pool_t *ip_stats_pool)
hash_table_t *	nfs_Init_ip_stats (nfs_ip_stats_parameter_t param)
void	nfs_ip_stats_dump (hash_table_t *ht_ip_stats, unsigned int nb_worker, char path_stat)

Detailed Description

The management of the IP stats per machines.

Author:

Author:: leibovic

Date:

Date:: 2006/01/24 13:49:12

Version:

Revision:: 1.4

nfs_ip_stats.c : The management of the IP stats per machines.

Header:: /cea/S/home/cvs/cvs/SHERPA/BaseCvs/GANESHA/src/support/nfs_ip_stats.c,v 1.4 2006/01/24 13:49:12 leibovic Exp

Log:: nfs_ip_stats.c,v

Revision 1.4 2006/01/24 13:49:12 leibovic Adding missing includes.

Revision 1.3 2006/01/20 07:39:23 leibovic Back to the previous version.

Revision 1.1 2005/11/30 09:28:42 deniel IP/stats cache per thread (no bottleneck) is complete

Definition in file nfs_ip_stats.c.

Function Documentation

int compare_ip_stats	(	hash_buffer_t *	buff1,
		hash_buffer_t *	buff2
	)

compare_ip_stats: compares the ip address stored in the key buffers.

compare the ip address stored in the key buffers. This function is to be used as 'compare_key' field in the hashtable storing the nfs duplicated requests.

Parameters:

buff1	[IN] first key
buff2	[IN] second key

Returns:: 0 if keys are identifical, 1 if they are different.

Definition at line 123 of file nfs_ip_stats.c.

int display_ip_stats_key	(	hash_buffer_t *	pbuff,
		char *	str
	)

display_ip_stats_key: displays the ip_stats stored in the buffer.

displays the ip_stats key stored in the buffer. This function is to be used as 'key_to_str' field.

Parameters:

buff1	[IN] buffer to display
buff2	[OUT] output string

Returns:: number of character written.

Definition at line 140 of file nfs_ip_stats.c.

int display_ip_stats_val	(	hash_buffer_t *	pbuff,
		char *	str
	)

display_ip_stats_val: displays the ip_stats stored in the buffer.

displays the ip_stats stored in the buffer. This function is to be used as 'val_to_str' field.

Parameters:

buff1	[IN] buffer to display
buff2	[OUT] output string

Returns:: number of character written.

Definition at line 160 of file nfs_ip_stats.c.

uint64_t ip_stats_rbt_hash_func	(	hash_parameter_t *	p_hparam,
		hash_buffer_t *	buffclef
	)

ip_stats_rbt_hash_func: computes the rbt value for the entry in IP stats cache.

Computes the rbt value for the entry in IP stats cache. This function is called internal in the HasTable_* function

Parameters:

hparam	[IN] hash table parameter.
buffcleff[in]	pointer to the hash key buffer

Returns:: the computed rbt value.

See also:: HashTable_Init

Definition at line 104 of file nfs_ip_stats.c.

uint32_t ip_stats_value_hash_func	(	hash_parameter_t *	p_hparam,
		hash_buffer_t *	buffclef
	)

ip_stats_rbt_hash_func: computes the hash value for the entry in IP stats cache.

Computes the hash value for the entry in IP stats cache. This function is called internal in the HasTable_* function

Parameters:

hparam	[IN] hash table parameter.
buffcleff[in]	pointer to the hash key buffer

Returns:: the computed hash value.

See also:: HashTable_Init

Definition at line 83 of file nfs_ip_stats.c.

hash_table_t* nfs_Init_ip_stats ( nfs_ip_stats_parameter_t param )

nfs_Init_ip_stats: Init the hashtable for IP stats cache.

Perform all the required initialization for hashtable IP stats cache

Parameters:

param [IN] parameter used to init the duplicate request cache

Returns:: 0 if successful, -1 otherwise

Definition at line 410 of file nfs_ip_stats.c.

int nfs_ip_stats_add	(	hash_table_t *	ht_ip_stats,
		sockaddr_t *	ipaddr,
		pool_t *	ip_stats_pool
	)

nfs_ip_stats_add: adds an entry in the duplicate requests cache.

Adds an entry in the duplicate requests cache.

Parameters:

ipaddr	[IN] the ipaddr to be used as key
ip_stats_pool	[INOUT] values pool for hash table

Returns:: IP_STATS_SUCCESS if successfull
.; IP_STATS_INSERT_MALLOC_ERROR if an error occured during the insertion process; IP_STATS_NETDB_ERROR if an error occured during the netdb query (via gethostbyaddr).

Definition at line 189 of file nfs_ip_stats.c.

void nfs_ip_stats_dump	(	hash_table_t **	ht_ip_stats,
		unsigned int	nb_worker,
		char *	path_stat
	)

nfs_ip_stats_dump: Dumps the IP Stats for each client to a file per client

Parameters:

ht_ip_stats	[IN] hash table to be dumped
path_stat	[IN] pattern used to build path used for dumping stats

Returns:: nothing (void function).

Definition at line 433 of file nfs_ip_stats.c.

int nfs_ip_stats_get	(	hash_table_t *	ht_ip_stats,
		sockaddr_t *	ipaddr,
		nfs_ip_stats_t **	g
	)

nfs_ip_stats_get: gets the stats value.

gets the stats value.

Parameters:

ipaddr [IN] the ip address requested

Returns:: the computed number of call for this ipaddr. Negative value is a failure

Definition at line 332 of file nfs_ip_stats.c.

int nfs_ip_stats_incr	(	hash_table_t *	ht_ip_stats,
		sockaddr_t *	ipaddr,
		unsigned int	nfs_prog,
		unsigned int	mnt_prog,
		struct svc_req *	ptr_req
	)

nfs_ip_stats_incr: increments the stats value.

increments the stats value.

Parameters:

ipaddr [IN] the ip address requested

Returns:: the computed number of call for this ipaddr. Negative value is a failure

Definition at line 254 of file nfs_ip_stats.c.

int nfs_ip_stats_remove	(	hash_table_t *	ht_ip_stats,
		sockaddr_t *	ipaddr,
		pool_t *	ip_stats_pool
	)

nfs_ip_stats_remove: Tries to remove an entry for ip_stats cache

Tries to remove an entry for ip_stats cache.

Parameters:

ipaddr	[IN] the ip address to be uncached.
ip_stats_pool	[INOUT] values pool for hash table

Returns:: the result previously set if *pstatus == IP_STATS_SUCCESS

Definition at line 371 of file nfs_ip_stats.c.

nfs_ip_stats.c File Reference

Functions

Detailed Description

Function Documentation