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[zion] Create a message queue to be shared between the port and channel

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Drew Galbraith 2023-06-20 15:29:32 -07:00
parent 1edd5023ce
commit fe1641ac38
7 changed files with 138 additions and 94 deletions
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26
zion/syscall/port.cpp
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@ -18,13 +18,7 @@ z_err_t PortSend(ZPortSendReq* req) {
auto port = port_cap->obj<Port>();
RET_IF_NULL(port);
ZMessage message{
.num_bytes = req->num_bytes,
.data = const_cast<void*>(req->data),
.num_caps = req->num_caps,
.caps = req->caps,
};
return port->Write(message);
return port->Write(req->num_bytes, req->data, req->num_caps, req->caps);
}
z_err_t PortRecv(ZPortRecvReq* req) {
@ -40,10 +34,7 @@ z_err_t PortRecv(ZPortRecvReq* req) {
.num_caps = *req->num_caps,
.caps = req->caps,
};
RET_ERR(port->Read(message));
*req->num_bytes = message.num_bytes;
*req->num_caps = message.num_caps;
return Z_OK;
return port->Read(req->num_bytes, req->data, req->num_caps, req->caps);
}
z_err_t PortPoll(ZPortPollReq* req) {
@ -53,19 +44,12 @@ z_err_t PortPoll(ZPortPollReq* req) {
auto port = port_cap->obj<Port>();
RET_IF_NULL(port);
// FIXME: Race condition here where this call could block if the last message
// is removed between this check and the port read.
if (!port->HasMessages()) {
return Z_ERR_EMPTY;
}
ZMessage message{
.num_bytes = *req->num_bytes,
.data = const_cast<void*>(req->data),
.num_caps = *req->num_caps,
.caps = req->caps,
};
RET_ERR(port->Read(message));
*req->num_bytes = message.num_bytes;
*req->num_caps = message.num_caps;
return Z_OK;
return port->Read(req->num_bytes, req->data, req->num_caps, req->caps);
}
z_err_t IrqRegister(ZIrqRegisterReq* req) {