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/*
Copyright (c) 2008-2012 Red Hat, Inc. <http://www.redhat.com>
This file is part of GlusterFS.
This file is licensed to you under your choice of the GNU Lesser
General Public License, version 3 or any later version (LGPLv3 or
later), or the GNU General Public License, version 2 (GPLv2), in all
cases as published by the Free Software Foundation.
*/
#include "event-history.h"
eh_t *
eh_new (size_t buffer_size, gf_boolean_t use_buffer_once,
void (*destroy_buffer_data) (void *data))
{
eh_t *history = NULL;
buffer_t *buffer = NULL;
history = GF_CALLOC (1, sizeof (eh_t), gf_common_mt_eh_t);
if (!history) {
gf_log ("", GF_LOG_ERROR, "allocating history failed.");
goto out;
}
buffer = cb_buffer_new (buffer_size, use_buffer_once,
destroy_buffer_data);
if (!buffer) {
gf_log ("", GF_LOG_ERROR, "allocating circular buffer failed");
GF_FREE (history);
history = NULL;
goto out;
}
history->buffer = buffer;
pthread_mutex_init (&history->lock, NULL);
out:
return history;
}
void
eh_dump (eh_t *history, void *data,
int (dump_fn) (circular_buffer_t *buffer, void *data))
{
if (!history) {
gf_log ("", GF_LOG_DEBUG, "history is NULL");
goto out;
}
cb_buffer_dump (history->buffer, data, dump_fn);
out:
return;
}
int
eh_save_history (eh_t *history, void *data)
{
int ret = -1;
ret = cb_add_entry_buffer (history->buffer, data);
return ret;
}
int
eh_destroy (eh_t *history)
{
if (!history) {
gf_log ("", GF_LOG_INFO, "history for the xlator is "
"NULL");
return -1;
}
cb_buffer_destroy (history->buffer);
history->buffer = NULL;
pthread_mutex_destroy (&history->lock);
GF_FREE (history);
return 0;
}
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