drew/acadia
1
0
Fork 0
Code Issues 6 Pull requests Projects Releases Packages Wiki Activity Actions

Add a Port poll operation

Browse source
This commit is contained in:
Drew Galbraith 2023-06-16 23:15:28 -07:00
parent 21b73b5b92
commit 35f24e7c77
6 changed files with 49 additions and 0 deletions
Download patch file Download diff file Expand all files Collapse all files

15
zion/syscall/syscall.cpp
View file

@ -208,6 +208,19 @@ z_err_t PortRecv(ZPortRecvReq* req) {
return port->Read(req->message);
}
z_err_t PortPoll(ZPortRecvReq* req) {
auto& proc = gScheduler->CurrentProcess();
auto port_cap = proc.GetCapability(req->port_cap);
RET_ERR(ValidateCap(port_cap, ZC_READ));
auto port = port_cap->obj<Port>();
RET_IF_NULL(port);
if (!port->HasMessages()) {
return Z_ERR_EMPTY;
}
return port->Read(req->message);
}
z_err_t IrqRegister(ZIrqRegisterReq* req, ZIrqRegisterResp* resp) {
auto& proc = gScheduler->CurrentProcess();
if (req->irq_num != Z_IRQ_PCI_BASE) {
@ -264,6 +277,8 @@ extern "C" z_err_t SyscallHandler(uint64_t call_id, void* req, void* resp) {
return ChannelRecv(reinterpret_cast<ZChannelRecvReq*>(req));
case Z_PORT_RECV:
return PortRecv(reinterpret_cast<ZPortRecvReq*>(req));
case Z_PORT_POLL:
return PortPoll(reinterpret_cast<ZPortRecvReq*>(req));
case Z_IRQ_REGISTER:
return IrqRegister(reinterpret_cast<ZIrqRegisterReq*>(req),
reinterpret_cast<ZIrqRegisterResp*>(resp));