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#include "SyncTimeline.hpp"
#include "../../defines.hpp"
#include "../../managers/eventLoop/EventLoopManager.hpp"
#include "../../Compositor.hpp"
#include <xf86drm.h>
#include <sys/eventfd.h>
using namespace Hyprutils::OS;
SP<CSyncTimeline> CSyncTimeline::create(int drmFD_) {
if (!g_pCompositor->supportsDrmSyncobjTimeline())
return nullptr;
auto timeline = SP<CSyncTimeline>(new CSyncTimeline);
timeline->m_drmFD = drmFD_;
timeline->m_self = timeline;
if (drmSyncobjCreate(drmFD_, 0, &timeline->m_handle)) {
Log::logger->log(Log::ERR, "CSyncTimeline: failed to create a drm syncobj??");
return nullptr;
}
return timeline;
}
SP<CSyncTimeline> CSyncTimeline::create(int drmFD_, CFileDescriptor&& drmSyncobjFD) {
if (!g_pCompositor->supportsDrmSyncobjTimeline())
return nullptr;
auto timeline = SP<CSyncTimeline>(new CSyncTimeline);
timeline->m_drmFD = drmFD_;
timeline->m_syncobjFD = std::move(drmSyncobjFD);
timeline->m_self = timeline;
if (drmSyncobjFDToHandle(drmFD_, timeline->m_syncobjFD.get(), &timeline->m_handle)) {
Log::logger->log(Log::ERR, "CSyncTimeline: failed to create a drm syncobj from fd??");
return nullptr;
}
return timeline;
}
CSyncTimeline::~CSyncTimeline() {
if (m_handle == 0)
return;
drmSyncobjDestroy(m_drmFD, m_handle);
}
std::optional<bool> CSyncTimeline::check(uint64_t point, uint32_t flags) {
#ifdef __FreeBSD__
constexpr int ETIME_ERR = ETIMEDOUT;
#else
constexpr int ETIME_ERR = ETIME;
#endif
uint32_t signaled = 0;
int ret = drmSyncobjTimelineWait(m_drmFD, &m_handle, &point, 1, 0, flags, &signaled);
if (ret != 0 && ret != -ETIME_ERR) {
Log::logger->log(Log::ERR, "CSyncTimeline::check: drmSyncobjTimelineWait failed");
return std::nullopt;
}
return ret == 0;
}
bool CSyncTimeline::addWaiter(std::function<void()>&& waiter, uint64_t point, uint32_t flags) {
auto eventFd = CFileDescriptor(eventfd(0, EFD_CLOEXEC));
if (!eventFd.isValid()) {
Log::logger->log(Log::ERR, "CSyncTimeline::addWaiter: failed to acquire an eventfd");
return false;
}
if (drmSyncobjEventfd(m_drmFD, m_handle, point, eventFd.get(), flags)) {
Log::logger->log(Log::ERR, "CSyncTimeline::addWaiter: drmSyncobjEventfd failed");
return false;
}
g_pEventLoopManager->doOnReadable(std::move(eventFd), std::move(waiter));
return true;
}
CFileDescriptor CSyncTimeline::exportAsSyncFileFD(uint64_t src) {
int sync = -1;
uint32_t syncHandle = 0;
if (drmSyncobjCreate(m_drmFD, 0, &syncHandle)) {
Log::logger->log(Log::ERR, "exportAsSyncFileFD: drmSyncobjCreate failed");
return {};
}
if (drmSyncobjTransfer(m_drmFD, syncHandle, 0, m_handle, src, 0)) {
Log::logger->log(Log::ERR, "exportAsSyncFileFD: drmSyncobjTransfer failed");
drmSyncobjDestroy(m_drmFD, syncHandle);
return {};
}
if (drmSyncobjExportSyncFile(m_drmFD, syncHandle, &sync)) {
Log::logger->log(Log::ERR, "exportAsSyncFileFD: drmSyncobjExportSyncFile failed");
drmSyncobjDestroy(m_drmFD, syncHandle);
return {};
}
drmSyncobjDestroy(m_drmFD, syncHandle);
return CFileDescriptor{sync};
}
bool CSyncTimeline::importFromSyncFileFD(uint64_t dst, CFileDescriptor& fd) {
uint32_t syncHandle = 0;
if (drmSyncobjCreate(m_drmFD, 0, &syncHandle)) {
Log::logger->log(Log::ERR, "importFromSyncFileFD: drmSyncobjCreate failed");
return false;
}
if (drmSyncobjImportSyncFile(m_drmFD, syncHandle, fd.get())) {
Log::logger->log(Log::ERR, "importFromSyncFileFD: drmSyncobjImportSyncFile failed");
drmSyncobjDestroy(m_drmFD, syncHandle);
return false;
}
if (drmSyncobjTransfer(m_drmFD, m_handle, dst, syncHandle, 0, 0)) {
Log::logger->log(Log::ERR, "importFromSyncFileFD: drmSyncobjTransfer failed");
drmSyncobjDestroy(m_drmFD, syncHandle);
return false;
}
drmSyncobjDestroy(m_drmFD, syncHandle);
return true;
}
bool CSyncTimeline::transfer(SP<CSyncTimeline> from, uint64_t fromPoint, uint64_t toPoint) {
if (m_drmFD != from->m_drmFD) {
Log::logger->log(Log::ERR, "CSyncTimeline::transfer: cannot transfer timelines between gpus, {} -> {}", from->m_drmFD, m_drmFD);
return false;
}
if (drmSyncobjTransfer(m_drmFD, m_handle, toPoint, from->m_handle, fromPoint, 0)) {
Log::logger->log(Log::ERR, "CSyncTimeline::transfer: drmSyncobjTransfer failed");
return false;
}
return true;
}
void CSyncTimeline::signal(uint64_t point) {
if (drmSyncobjTimelineSignal(m_drmFD, &m_handle, &point, 1))
Log::logger->log(Log::ERR, "CSyncTimeline::signal: drmSyncobjTimelineSignal failed");
}
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