53 lines
1.4 KiB
C++
53 lines
1.4 KiB
C++
#include "syscall/channel.h"
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#include "scheduler/scheduler.h"
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#include "syscall/syscall.h"
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z_err_t ChannelCreate(ZChannelCreateReq* req) {
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auto& proc = gScheduler->CurrentProcess();
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auto chan_pair = Channel::CreateChannelPair();
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*req->channel1 = proc.AddNewCapability(chan_pair.first(), ZC_WRITE | ZC_READ);
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*req->channel2 =
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proc.AddNewCapability(chan_pair.second(), ZC_WRITE | ZC_READ);
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return Z_OK;
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}
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z_err_t ChannelSend(ZChannelSendReq* req) {
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auto& proc = gScheduler->CurrentProcess();
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auto chan_cap = proc.GetCapability(req->chan_cap);
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RET_ERR(ValidateCap(chan_cap, ZC_WRITE));
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auto chan = chan_cap->obj<Channel>();
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RET_IF_NULL(chan);
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// FIXME: Get rid of this hack.
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ZMessage message{
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.num_bytes = req->num_bytes,
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.data = const_cast<void*>(req->data),
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.num_caps = req->num_caps,
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.caps = req->caps,
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};
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return chan->Write(message);
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}
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z_err_t ChannelRecv(ZChannelRecvReq* req) {
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auto& proc = gScheduler->CurrentProcess();
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auto chan_cap = proc.GetCapability(req->chan_cap);
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RET_ERR(ValidateCap(chan_cap, ZC_READ));
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auto chan = chan_cap->obj<Channel>();
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RET_IF_NULL(chan);
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// FIXME: Get rid of this hack.
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ZMessage message{
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.num_bytes = *req->num_bytes,
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.data = const_cast<void*>(req->data),
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.num_caps = *req->num_caps,
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.caps = req->caps,
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};
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RET_ERR(chan->Read(message));
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*req->num_bytes = message.num_bytes;
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*req->num_caps = message.num_caps;
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return Z_OK;
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}
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