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#include "conf.h"
#include "cdb.h"
#include "log.h"
#include "memdb.h"
#include "mysqldb.h"
#include "thread.h"
#include "periodic.h"
#include <errno.h>
#include <stdlib.h>
#include <string.h>
#include <sys/time.h>
RCSID("$Id: periodic.c,v 1.9 2000/05/17 21:52:34 shmit Exp $");
struct _per_thread_t {
cond_t *cond;
thread_t *tid;
};
typedef struct _per_thread_t per_thread_t;
static void *
periodic_looper(void *arg)
{
per_thread_t *self;
int count;
self = (per_thread_t *)arg;
pthread_detach(pthread_self());
count = 0;
for (;;) {
struct timeval tv;
struct timespec ts;
gettimeofday(&tv, NULL);
memset(&ts, 0, sizeof(ts));
ts.tv_sec = tv.tv_sec + 1;
(void)cond_timedwait(self->cond, &ts);
count++;
if (count == PERIODICITY) {
cdb_periodic();
count = 0;
}
cdb_collate();
mysqldb_collate();
memdb_collate();
}
return NULL;
}
void
periodic_delete(per_thread_t *thr)
{
if (thr == NULL)
return;
if (thr->cond) {
cond_destroy(thr->cond);
free(thr->cond);
thr->cond = NULL;
}
if (thr->tid) {
free(thr->tid);
thr->tid = NULL;
}
free(thr);
}
int
periodic_new()
{
per_thread_t *per_thread;
int rc;
per_thread = malloc(sizeof(per_thread_t));
if (per_thread == NULL) {
log_err("Couldn't allocate periodic thread: %s.",
strerror(errno));
return -1;
}
per_thread->cond = NULL;
per_thread->tid = NULL;
per_thread->cond = malloc(sizeof(cond_t));
if (per_thread->cond == NULL) {
log_err("Couldn't allocate periodic condition: %s.",
strerror(errno));
periodic_delete(per_thread);
return -1;
}
rc = cond_new(per_thread->cond);
if (rc) {
log_err("Couldn't initialise periodic condition: %s.",
strerror(rc));
periodic_delete(per_thread);
return -1;
}
per_thread->tid = malloc(sizeof(thread_t));
if (per_thread->tid == NULL) {
log_err("Couldn't allocate periodic thread: %s.",
strerror(rc));
periodic_delete(per_thread);
return -1;
}
rc = thread_new(per_thread->tid, periodic_looper, per_thread);
if (rc) {
log_err("Couldn't start periodic thread: %s.",
strerror(rc));
periodic_delete(per_thread);
return -1;
}
return 0;
}
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