/* 构建定时器对象, 包括分配内存、初始化触发列表集、初始化锁并将当前时间 time 置为 0.
* 此函数返回初始化好的定时器对象. */
static struct timer *
timer_create_timer() {
struct timer *r=(struct timer *)skynet_malloc(sizeof(struct timer));
/* 将 time 初始化为 0 */
memset(r,0,sizeof(*r));
int i,j;
/* 初始化最近的触发列表集 */
for (i=0;i<TIME_NEAR;i++) {
link_clear(&r->near[i]);
}
/* 初始化 4 级触发时间较远的触发列表集 */
for (i=0;i<4;i++) {
for (j=0;j<TIME_LEVEL;j++) {
link_clear(&r->t[i][j]);
}
}
SPIN_INIT(r)
/* current 以及除了 time 以外的其它时间字段还会进一步初始化 */
r->current = 0;
return r;
}
static int grtm_init3(struct drvmgr_dev *dev)
{
struct grtm_priv *priv;
char prefix[32];
rtems_status_code status;
priv = dev->priv;
/* Do initialization */
if ( grtm_driver_io_registered == 0) {
/* Register the I/O driver only once for all cores */
if ( grtm_register_io(&grtm_driver_io_major) ) {
/* Failed to register I/O driver */
dev->priv = NULL;
return DRVMGR_FAIL;
}
grtm_driver_io_registered = 1;
}
/* I/O system registered and initialized
* Now we take care of device initialization.
*/
if ( grtm_device_init(priv) ) {
return DRVMGR_FAIL;
}
/* Get Filesystem name prefix */
prefix[0] = '\0';
if ( drvmgr_get_dev_prefix(dev, prefix) ) {
/* Failed to get prefix, make sure of a unique FS name
* by using the driver minor.
*/
sprintf(priv->devName, "/dev/grtm%d", dev->minor_drv);
} else {
/* Got special prefix, this means we have a bus prefix
* And we should use our "bus minor"
*/
sprintf(priv->devName, "/dev/%sgrtm%d", prefix, dev->minor_bus);
}
SPIN_INIT(&priv->devlock, priv->devName);
/* Register Device */
status = rtems_io_register_name(priv->devName, grtm_driver_io_major, dev->minor_drv);
if (status != RTEMS_SUCCESSFUL) {
return DRVMGR_FAIL;
}
return DRVMGR_OK;
}
static struct timer *
timer_create_timer() {
struct timer *r=(struct timer *)skynet_malloc(sizeof(struct timer));
memset(r,0,sizeof(*r));
int i,j;
for (i=0;i<TIME_NEAR;i++) {
link_clear(&r->near[i]);
}
for (i=0;i<4;i++) {
for (j=0;j<TIME_LEVEL;j++) {
link_clear(&r->t[i][j]);
}
}
SPIN_INIT(r)
r->current = 0;
return r;
}
