packets/packet_cache.c File Reference

#include "packet_cache.h"
#include "packet.h"
#include <stdio.h>
#include <string.h>
#include <unistd.h>
#include <stdlib.h>

Go to the source code of this file.

Defines
#define	DEBUGLOCKS
Functions
int	InitCache ()
unsigned short	HashKey (char *Key, int KeyLen)
void	FreeSaved (int SaveID)
void	FreeSaveQuery (SaveQuery *q)
void	TimeoutSavedPackets (long CurTime)
int	GetFreeSaved ()
int	SavePacket (int PacketSlot, char *Key, int KeyLen, int Timeout)
SaveQuery *	GetAndLockSavedPackets (char *Key, int KeyLen)
void	UnlockSavedQuery (SaveQuery *q)
Variables
pthread_mutex_t	SavedMutex
int	SaveLockID
SaveRec	Saves [MAX_SAVES]
SaveBin	SBins [65536]
int	SaveTimeHead
int	SaveTimeTail
GlobalVars	Globals

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Define Documentation

#define DEBUGLOCKS

Definition at line 17 of file packet_cache.c.

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Function Documentation

void FreeSaved

(

int

SaveID

)

Definition at line 65 of file packet_cache.c.

References FALSE, Globals, HashKey(), hlbr_mutex_unlock(), save_rec::InUse, save_rec::Key, save_rec::KeyLen, packet_rec::Mutex, save_rec::NextTime, NULL, save_bin::NumInBin, global_vars::Packets, save_rec::PacketSlot, save_rec::PrevTime, ReturnEmptyPacket(), packet_rec::SaveCount, global_vars::SavedCount, Saves, SaveTimeHead, SaveTimeTail, and SBins.

Referenced by FreeSaveQuery(), and TimeoutSavedPackets().

void FreeSaveQuery

(

SaveQuery *

q

)

Definition at line 123 of file packet_cache.c.

References FREE_SAVED_1, FreeSaved(), hlbr_mutex_lock(), hlbr_mutex_unlock(), save_query::NumResults, SavedMutex, SaveLockID, and save_query::Saves.

SaveQuery* GetAndLockSavedPackets	(	char *	Key,
		int	KeyLen
	)

Definition at line 260 of file packet_cache.c.

References DEBUG, GET_SAVED_1, GET_SAVED_2, GET_SAVED_3, Globals, HashKey(), hlbr_mutex_lock(), hlbr_mutex_unlock(), save_bin::Items, save_rec::Key, save_rec::KeyLen, save_rec::LockID, packet_rec::LockID, MAX_QUERY_RESULTS, save_rec::Mutex, packet_rec::Mutex, save_bin::NumInBin, save_query::NumResults, global_vars::Packets, save_query::Packets, save_rec::PacketSlot, SavedMutex, SaveLockID, Saves, save_query::Saves, and SBins.

int GetFreeSaved

(

)

Definition at line 183 of file packet_cache.c.

References MAX_SAVES, and Saves.

Referenced by SavePacket().

unsigned short HashKey	(	char *	Key,
		int	KeyLen
	)

Definition at line 39 of file packet_cache.c.

Referenced by FreeSaved(), GetAndLockSavedPackets(), and SavePacket().

int InitCache

(

)

Definition at line 24 of file packet_cache.c.

References MAX_SAVES, Saves, SBins, and TRUE.

int SavePacket	(	int	PacketSlot,
		char *	Key,
		int	KeyLen,
		int	Timeout
	)

Definition at line 198 of file packet_cache.c.

References FALSE, GetFreeSaved(), Globals, HashKey(), hlbr_mutex_lock(), hlbr_mutex_unlock(), save_rec::InUse, save_bin::Items, save_rec::Key, save_rec::KeyLen, packet_rec::LockID, MAX_SAVES_PER_BIN, packet_rec::Mutex, save_rec::NextTime, save_bin::NumInBin, global_vars::Packets, save_rec::PacketSlot, SAVE_PACKET_1, SAVE_PACKET_2, packet_rec::SaveCount, SavedMutex, SaveLockID, Saves, SaveTimeHead, SaveTimeTail, SBins, save_rec::Timeout, TimeoutSavedPackets(), TRUE, and packet_rec::tv.

void TimeoutSavedPackets

(

long

CurTime

)

Definition at line 148 of file packet_cache.c.

References FreeSaved(), Globals, hlbr_mutex_lock(), hlbr_mutex_unlock(), global_vars::SavedCount, Saves, SaveTimeHead, and TIMEOUT_SAVED_1.

Referenced by SavePacket().

void UnlockSavedQuery

(

SaveQuery *

q

)

Definition at line 314 of file packet_cache.c.

References Globals, hlbr_mutex_lock(), hlbr_mutex_unlock(), packet_rec::Mutex, save_rec::Mutex, save_query::NumResults, global_vars::Packets, save_rec::PacketSlot, SavedMutex, SaveLockID, Saves, save_query::Saves, and UNLOCK_SAVED_1.

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Variable Documentation

GlobalVars Globals

Definition at line 41 of file hlbr.c.

pthread_mutex_t SavedMutex

Definition at line 8 of file packet_cache.c.

Referenced by FreeSaveQuery(), GetAndLockSavedPackets(), SavePacket(), and UnlockSavedQuery().

int SaveLockID

Definition at line 9 of file packet_cache.c.

Referenced by FreeSaveQuery(), GetAndLockSavedPackets(), SavePacket(), and UnlockSavedQuery().

SaveRec Saves[MAX_SAVES]

Definition at line 10 of file packet_cache.c.

Referenced by FreeSaved(), GetAndLockSavedPackets(), GetFreeSaved(), InitCache(), SavePacket(), TimeoutSavedPackets(), and UnlockSavedQuery().

int SaveTimeHead

Definition at line 13 of file packet_cache.c.

Referenced by FreeSaved(), SavePacket(), and TimeoutSavedPackets().

int SaveTimeTail

Definition at line 14 of file packet_cache.c.

Referenced by FreeSaved(), and SavePacket().

SaveBin SBins[65536]

Definition at line 11 of file packet_cache.c.

Referenced by FreeSaved(), GetAndLockSavedPackets(), InitCache(), and SavePacket().

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