icache.h
/*
* Copyright 2011 Red Hat Inc., Durham, North Carolina.
* All Rights Reserved.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* Authors:
* Daniel Kopecek <dkopecek@redhat.com>
*/
#ifndef ICACHE_H
#define ICACHE_H
#include <stddef.h>
#include <sexp.h>
#include "../SEAP/generic/rbt/rbt.h"
#ifndef PROBE_IQUEUE_CAPACITY
#define PROBE_IQUEUE_CAPACITY 1024
#endif
typedef struct {
SEXP_t *cobj;
union {
SEXP_t *item;
pthread_cond_t *cond;
} p;
} probe_iqpair_t;
typedef struct {
rbt_t *tree; /* XXX: rewrite to extensible or linear hashing */
pthread_t thid;
pthread_mutex_t queue_mutex;
pthread_cond_t queue_notempty;
pthread_cond_t queue_notfull;
probe_iqpair_t queue[PROBE_IQUEUE_CAPACITY];
uint16_t queue_beg;
uint16_t queue_end;
uint16_t queue_cnt;
uint16_t queue_max;
} probe_icache_t;
typedef struct {
SEXP_t **item;
uint16_t count;
} probe_citem_t;
probe_icache_t *probe_icache_new(void);
int probe_icache_add(probe_icache_t *cache, SEXP_t *cobj, SEXP_t *item);
int probe_icache_nop(probe_icache_t *cache);
void probe_icache_free(probe_icache_t *cache);
#endif /* ICACHE_H */