void *platform_tls_get(PLATFORM_TLS_T tls)
{
void *ret;
if (!process_attached)
/* TODO: this isn't thread safe */
{
vcos_log_trace("Attaching process");
client_process_attach();
process_attached = true;
tls = client_tls;
vc_vchi_khronos_init();
}
ret = vcos_tls_get(tls);
if (!ret)
{
/* The problem here is that on VCFW, the first notification we get that a thread
* exists at all is when it calls an arbitrary EGL function. We need to detect this
* case and initiliase the per-thread state.
*
* On Windows this gets done in DllMain.
*/
client_thread_attach();
vcos_thread_at_exit(client_thread_detach, NULL);
ret = vcos_tls_get(tls);
}
return ret;
}
/* wait for a specific message, on the secondary interface
* FIXME: does this need to do the nasty waking-up-and-walking-the-queue trick?
*/
VCOS_MSG_T * vcos_msg_wait_specific(VCOS_MSGQUEUE_T *queue, VCOS_MSG_T *msg)
{
VCOS_MSG_ENDPOINT_T *self = (VCOS_MSG_ENDPOINT_T *)vcos_tls_get(tls_key);
VCOS_MSG_T *reply;
(void)queue;
vcos_assert(self);
reply = vcos_msg_wait_helper(&self->secondary);
vcos_assert(reply == msg); /* if this fires, someone is playing fast and loose with sendwait */
(void)msg;
return reply;
}
/* send on to the target queue, then wait on our secondary queue for the reply */
void vcos_msg_sendwait(VCOS_MSGQUEUE_T *dest, uint32_t code, VCOS_MSG_T *msg)
{
VCOS_MSG_ENDPOINT_T *self = (VCOS_MSG_ENDPOINT_T *)vcos_tls_get(tls_key);
VCOS_MSG_T *reply;
vcos_assert(self);
vcos_msg_send_helper(&self->secondary, dest, code, msg);
reply = vcos_msg_wait_helper(&self->secondary);
/* If this fires, then the caller is sending and waiting for multiple things at the same time,
* somehow. In that case you need a state machine.
*/
vcos_assert(reply == msg);
(void)reply;
}
/** Peek for a message
*/
VCOS_MSG_T *vcos_msg_peek(void)
{
VCOS_MSG_ENDPOINT_T *self = (VCOS_MSG_ENDPOINT_T *)vcos_tls_get(tls_key);
vcos_assert(self);
return vcos_msg_peek_helper(&self->primary);
}
void *platform_tls_get_check(PLATFORM_TLS_T tls)
{
return vcos_tls_get(tls);
}