int dm_event_unregister_handler(const struct dm_event_handler *dmevh)
{
int ret = 1, err;
const char *uuid;
struct dm_task *dmt;
struct dm_event_daemon_message msg = { 0, 0, NULL };
if (!(dmt = _get_device_info(dmevh))) {
stack;
return 0;
}
uuid = dm_task_get_uuid(dmt);
if ((err = _do_event(DM_EVENT_CMD_UNREGISTER_FOR_EVENT, dmevh->dmeventd_path, &msg,
dmevh->dso, uuid, dmevh->mask, dmevh->timeout)) < 0) {
log_error("%s: event deregistration failed: %s",
dm_task_get_name(dmt),
msg.data ? msg.data : strerror(-err));
ret = 0;
}
dm_free(msg.data);
dm_task_destroy(dmt);
return ret;
}
int get_free_flash() {
char *n;
int *x1, *flash;
int ret;
if (dodebug) {
printf("get_free_flash:\n");
}
ret = _get_device_info((char **)&n, (int *)&x1, (int *)&flash);
if (n) free(n);
if (ret == -1) return(-1);
return((int)flash);
}
/* this always seems to be zero for some reason */
int get_bluetooth_signal_strength() {
char *n;
int *bs, *x2;
int ret;
if (dodebug) {
printf("get_bluetooth_signal_strength:\n");
}
ret = _get_device_info((char **)&n, (int *)&bs, (int *)&x2);
if (n) free(n);
if (ret == -1) return(-1);
return((int)bs);
}
char *get_brick_name() {
char *name;
int *x1, *x2;
if (dodebug) {
printf("get_brick_name:\n");
}
_get_device_info((char **)&name, (int *) &x1, (int *)&x2);
if (dodebug) {
printf("got name %s\n", name);
}
return(name);
}
/*
* Returns 0 if handler found; error (-ENOMEM, -ENOENT) otherwise.
*/
int dm_event_get_registered_device(struct dm_event_handler *dmevh, int next)
{
int ret = 0;
const char *uuid = NULL;
char *reply_dso = NULL, *reply_uuid = NULL;
enum dm_event_mask reply_mask = 0;
struct dm_task *dmt = NULL;
struct dm_event_daemon_message msg = { 0, 0, NULL };
struct dm_info info;
if (!(dmt = _get_device_info(dmevh))) {
stack;
return 0;
}
uuid = dm_task_get_uuid(dmt);
if (!(ret = _do_event(next ? DM_EVENT_CMD_GET_NEXT_REGISTERED_DEVICE :
DM_EVENT_CMD_GET_REGISTERED_DEVICE, dmevh->dmeventd_path,
&msg, dmevh->dso, uuid, dmevh->mask, 0))) {
/* FIXME this will probably horribly break if we get
ill-formatted reply */
ret = _parse_message(&msg, &reply_dso, &reply_uuid, &reply_mask);
} else {
ret = -ENOENT;
goto fail;
}
dm_task_destroy(dmt);
dmt = NULL;
dm_free(msg.data);
msg.data = NULL;
_dm_event_handler_clear_dev_info(dmevh);
dmevh->uuid = dm_strdup(reply_uuid);
if (!dmevh->uuid) {
ret = -ENOMEM;
goto fail;
}
if (!(dmt = _get_device_info(dmevh))) {
ret = -ENXIO; /* dmeventd probably gave us bogus uuid back */
goto fail;
}
dm_event_handler_set_dso(dmevh, reply_dso);
dm_event_handler_set_event_mask(dmevh, reply_mask);
dm_free(reply_dso);
reply_dso = NULL;
dm_free(reply_uuid);
reply_uuid = NULL;
dmevh->dev_name = dm_strdup(dm_task_get_name(dmt));
if (!dmevh->dev_name) {
ret = -ENOMEM;
goto fail;
}
if (!dm_task_get_info(dmt, &info)) {
ret = -1;
goto fail;
}
dmevh->major = info.major;
dmevh->minor = info.minor;
dm_task_destroy(dmt);
return ret;
fail:
dm_free(msg.data);
dm_free(reply_dso);
dm_free(reply_uuid);
_dm_event_handler_clear_dev_info(dmevh);
if (dmt)
dm_task_destroy(dmt);
return ret;
}
