void ReadWriteLock_ReleaseWrite(
_Inout_ ReadWriteLock* self)
{
volatile LockFields* lock = (LockFields*)self;
size_t state, key;
state = Atomic_Add(LockState(lock), -OWN_EXCLUSIVE);
if (state != 0)
{
/* There is a queue.
* Threads may be blocked waiting for us to leave. */
key = (size_t)lock ^ LockExit(state);
CondLock_Broadcast(key);
//if (((LockEntry(state) - LockExit(state)) & (FIELD_SIZE - 1)) == 2 &&
if (LockEntry(state) - LockExit(state) >= 2 &&
((CurrentTick() - LockUnfair(state)) & 14) == 0)
{
/* Under certain conditions, encourage the last group of threads in
* line to stop spinning and acquire unfairly. */
if (LockEntry(state) == LockWriter(state))
key = (size_t)lock ^ (LockEntry(state) - 1);
else
key = (size_t)lock ^ LockWriter(state);
CondLock_BroadcastSpinners(key);
}
}
}
void cParamServer::UpdateNet(const tInputInfo& in_info, tOutputInfo& out_info)
{
int id = in_info.mID;
cNeuralNet* grad_net = in_info.mGradNet;
auto& entry = mPool[id];
auto& net = mPool[id].mNet;
LockEntry(id);
net->CopyGrad(*grad_net);
net->StepSolver(1);
if (in_info.mIncIter)
{
++entry.mIter;
}
out_info.mIter = entry.mIter;
if (out_info.mSyncNet != nullptr)
{
out_info.mSyncNet->CopyModel(*net);
}
UnlockEntry(id);
}
/*!
\fn svn::InfoEntry::init()
*/
void svn::InfoEntry::init()
{
m_name = "";
m_last_changed_date=0;
m_text_time = 0;
m_prop_time = 0;
m_hasWc = false;
m_Lock = LockEntry();
m_checksum = "";
m_conflict_new = "";
m_conflict_old = "";
m_conflict_wrk = "";
m_copyfrom_url = "";
m_last_author = "";
m_prejfile = "";
m_repos_root = "";
m_url = "";
m_pUrl = "";
m_UUID = "";
m_kind = svn_node_none;
m_copy_from_rev = SVN_INVALID_REVNUM;
m_last_changed_rev = SVN_INVALID_REVNUM;
m_revision = SVN_INVALID_REVNUM;
m_schedule = svn_wc_schedule_normal;
m_size = m_working_size = SVNQT_SIZE_UNKNOWN;
m_changeList=QByteArray();
m_depth = DepthUnknown;
}
/*!
\fn svn::InfoEntry::init()
*/
void svn::InfoEntry::init()
{
m_name.clear();
m_last_changed_date = DateTime();
m_text_time = DateTime();
m_prop_time = DateTime();
m_hasWc = false;
m_Lock = LockEntry();
m_checksum.clear();
#if SVN_API_VERSION >= SVN_VERSION_CHECK(1,7,0)
#else
m_conflict_new.clear();
m_conflict_old.clear();
m_conflict_wrk.clear();
#endif
m_copyfrom_url.clear();
m_last_author.clear();
m_prejfile.clear();
m_repos_root.clear();
m_url.clear();
m_UUID.clear();
m_kind = svn_node_none;
m_copy_from_rev = SVN_INVALID_REVNUM;
m_last_changed_rev = SVN_INVALID_REVNUM;
m_revision = SVN_INVALID_REVNUM;
m_schedule = svn_wc_schedule_normal;
m_size = m_working_size = SVNQT_SIZE_UNKNOWN;
m_changeList.clear();
m_depth = DepthUnknown;
}
int cParamServer::GetIter(int id)
{
auto& entry = mPool[id];
LockEntry(id);
int iter = entry.mIter;
UnlockEntry(id);
return iter;
}
void cParamServer::SyncNet(int id, cNeuralNet& out_net)
{
auto& entry = mPool[id];
auto& net = mPool[id].mNet;
LockEntry(id);
out_net.CopyModel(*net);
UnlockEntry(id);
}
void cParamServer::UpdateInputOffsetScale(int id, const Eigen::VectorXd& offset, const Eigen::VectorXd& scale)
{
auto& entry = mPool[id];
auto& net = mPool[id].mNet;
int& count = entry.mScaleUpdateCount;
LockEntry(id);
Eigen::VectorXd curr_offset = net->GetInputOffset();
Eigen::VectorXd curr_scale = net->GetInputScale();
curr_offset = (count * curr_offset + offset) / (count + 1);
curr_scale = (count * curr_scale + scale) / (count + 1);
net->SetInputOffsetScale(curr_offset, curr_scale);
++count;
UnlockEntry(id);
}
static void QueueAcquireWrite(
_Inout_ ReadWriteLock* self
)
{
volatile LockFields* lock = (LockFields*)self;
size_t oldState, state, swapState, preQueuedState;
size_t waitFor, key, spinState, spinCount;
for (;;)
{
oldState = ReadLockState(lock);
state = oldState;
/* If there is no queue, we are the first one to wait;
* allow unfairness for the current timer tick. */
if (state <= OWN_EXCLUSIVE)
LockUnfair(state) = CurrentTick();
/* Wait for the most recent thread to enter the queue. */
waitFor = LockEntry(state);
if (++LockEntry(state) == LockExit(state))
{
/* The queue arithmetic will wrap if we continue. */
Thread_Yield();
continue;
}
/* Make reader threads coming in wait for us. */
LockWriter(state) = LockEntry(state);
swapState = Atomic_CompareAndSwap(LockState(lock), oldState, state);
if (swapState == oldState)
break;
}
/* This thread now has a place in the queue.
* Threads behind us may be depending on us to wake them up. */
preQueuedState = oldState;
key = (size_t)lock ^ waitFor;
spinState = LockSpin(oldState);
for (;;)
{
/* Avoid write prefetching since we expect to wait. */
oldState = *(ptrdiff_t*)lock;
if (LockExit(oldState) != waitFor || LockOwners(oldState) != 0)
{
/* The thread ahead of us still hasn't acquired,
* or some reader or writer owns the lock right now. */
if (((CurrentTick() - LockUnfair(oldState)) & 14) == 0 &&
LockEntry(oldState) - LockExit(oldState) >= 2 &&
LockEntry(oldState) == LockEntry(preQueuedState) + 1 &&
LockOwners(oldState) == 0)
{
/* Under certain conditions, we can acquire immediately if we
* are the last thread in line and undo joining the queue. */
if (preQueuedState <= OWN_EXCLUSIVE)
state = OWN_EXCLUSIVE;
else
{
state = oldState + OWN_EXCLUSIVE;
LockEntry(state) = LockEntry(preQueuedState);
LockWriter(state) = LockWriter(preQueuedState);
}
/* Atomically de-queue and acquire unfairly. */
swapState = Atomic_CompareAndSwap(LockState(lock), oldState, state);
if (swapState == oldState)
return;
continue;
}
/* spinState being low means spinning usually works.
* Use a high count if it has been working recently. */
spinCount = (spinState & SPIN_SIGN) ?
CONDLOCK_LOW_SPINCOUNT :
CONDLOCK_HIGH_SPINCOUNT;
/* Spin and/or block until something changes.
* Adjust the spin field based on whether spinning worked. */
if (CondLock_Wait(key, (ptrdiff_t*)lock, oldState, spinCount))
spinState = (spinState > 2) ? (spinState - 2) : 0;
else
spinState = (spinState < SPIN_MAX) ? (spinState + 1) : spinState;
continue;
}
state = oldState + OWN_EXCLUSIVE;
/* Bump the exit ticket number. We're leaving the queue. */
LockExit(state)++;
/* Zero the top 4 fields if the queue is now empty. */
if (LockExit(state) == LockEntry(state))
state = LockOwners(state);
else
{
/* Not empty, but we just acquired fairly.
* Allow unfairness for a while. */
LockUnfair(state) = CurrentTick();
LockSpin(state) = spinState;
}
/* Ready to take exclusive ownership. */
swapState = Atomic_CompareAndSwap(LockState(lock), oldState, state);
if (swapState == oldState)
return;
}
}
static void QueueAcquireRead(
_Inout_ ReadWriteLock* self
)
{
volatile LockFields* lock = (LockFields*)self;
size_t oldState, state, swapState, preQueuedState;
size_t waitFor, diff, key, spinState, spinCount;
for (;;)
{
oldState = ReadLockState(lock);
state = oldState;
/* If there is no queue, we are the first one to wait;
* allow unfairness for the current timer tick. */
if (state <= OWN_EXCLUSIVE)
LockUnfair(state) = CurrentTick();
/* Insert a barrier every half revolution.
* This stops writer arithmetic from wrapping. */
if ((LockEntry(state) & ~FIELD_SIGN) == 0)
LockWriter(state) = LockEntry(state);
if (++LockEntry(state) == LockExit(state))
{
/* The queue arithmetic will wrap if we continue. */
Thread_Yield();
continue;
}
swapState = Atomic_CompareAndSwap(LockState(lock), oldState, state);
if (swapState == oldState)
break;
}
/* This thread now has a place in the queue.
* Threads behind us may be depending on us to wake them up. */
/* Wait for the most recent writer to enter the queue. */
waitFor = LockWriter(state);
key = (size_t)lock ^ waitFor;
preQueuedState = oldState;
spinState = LockSpin(oldState);
for (;;)
{
/* Avoid write prefetching since we expect to wait. */
oldState = *(ptrdiff_t*)lock;
diff = LockExit(oldState) - waitFor;
if ((diff & FIELD_SIGN) == 0)
{
/* The writer ahead of us in line already acquired.
* Someone could have beat us unfairly.
* Just wait for the current owner. */
waitFor = LockExit(oldState);
key = (size_t)lock ^ waitFor;
}
if ((diff & FIELD_SIGN) != 0 || (LockOwners(oldState) == OWN_EXCLUSIVE))
{
/* The writer ahead of us still hasn't acquired,
* or someone owns the lock exclusively right now. */
if (((CurrentTick() - LockUnfair(oldState)) & 14) == 0 &&
LockEntry(oldState) - LockExit(oldState) >= 2 &&
LockEntry(oldState) == LockEntry(preQueuedState) + 1 &&
(LockOwners(oldState) < OWN_MAXSHARED))
{
/* Under certain conditions, we can acquire immediately if we
* are the last thread in line and undo joining the queue. */
if (preQueuedState <= OWN_EXCLUSIVE)
state = LockOwners(oldState) + 1;
else
{
state = oldState + 1;
LockEntry(state) = LockEntry(preQueuedState);
LockWriter(state) = LockWriter(preQueuedState);
}
/* Atomically de-queue and acquire unfairly. */
swapState = Atomic_CompareAndSwap(LockState(lock), oldState, state);
if (swapState == oldState)
return;
continue;
}
/* spinState being low means spinning usually works.
* Use a high count if it has been working recently. */
spinCount = (spinState & SPIN_SIGN) ?
CONDLOCK_LOW_SPINCOUNT :
CONDLOCK_HIGH_SPINCOUNT;
/* Spin and/or block until something changes.
* Adjust the spin field based on whether spinning worked. */
if (CondLock_Wait(key, (ptrdiff_t*)lock, oldState, spinCount))
spinState = (spinState > 2) ? (spinState - 2) : 0;
else
spinState = (spinState < SPIN_MAX) ? (spinState + 1) : spinState;
continue;
}
if (LockOwners(oldState) == OWN_MAXSHARED)
{
/* The owner arithmetic will overflow if we continue. */
Thread_Yield();
continue;
}
state = oldState + 1;
/* Bump the exit ticket number. We're leaving the queue. */
LockExit(state)++;
/* Zero the top 4 fields if the queue is now empty. */
if (LockExit(state) == LockEntry(state))
state = LockOwners(state);
else
{
/* Not empty, but we just acquired fairly.
* Allow unfairness for a while. */
LockUnfair(state) = CurrentTick();
LockSpin(state) = spinState;
}
/* Ready to take shared ownership. */
swapState = Atomic_CompareAndSwap(LockState(lock), oldState, state);
if (swapState == oldState)
break;
}
if ((LockExit(state) & ~FIELD_SIGN) == 0)
{
/* Wakes those waiting on the artificial barrier inserted each half
* revolution (see above). */
key = (size_t)lock ^ LockExit(state);
CondLock_Broadcast(key);
}
}
/*!
\fn svn::InfoEntry::init(const svn_info_t*)
*/
void svn::InfoEntry::init(const svn_info_t*item,const QString&path)
{
if (!item) {
init();
return;
}
m_name = path;
m_last_changed_date=item->last_changed_date;
m_text_time = item->text_time;
m_prop_time = item->prop_time;
if (item->lock) {
m_Lock.init(item->lock);
} else {
m_Lock = LockEntry();
}
m_checksum = QString::fromUtf8(item->checksum);
m_conflict_new = QString::fromUtf8(item->conflict_new);
m_conflict_old = QString::fromUtf8(item->conflict_old);
m_conflict_wrk = QString::fromUtf8(item->conflict_wrk);
m_copyfrom_url = QString::fromUtf8(item->copyfrom_url);
m_last_author = QString::fromUtf8(item->last_changed_author);
m_prejfile = QString::fromUtf8(item->prejfile);
m_repos_root = QString::fromUtf8(item->repos_root_URL);
m_url = QString::fromUtf8(item->URL);
m_pUrl = prettyUrl(item->URL);
m_UUID = QString::fromUtf8(item->repos_UUID);
m_kind = item->kind;
m_copy_from_rev = item->copyfrom_rev;
m_last_changed_rev = item->last_changed_rev;
m_revision = item->rev;
m_hasWc = item->has_wc_info;
m_schedule = item->schedule;
#if ((SVN_VER_MAJOR == 1) && (SVN_VER_MINOR >= 6)) || (SVN_VER_MAJOR > 1)
m_size = item->size64!=SVN_INVALID_FILESIZE?qlonglong(item->size64):SVNQT_SIZE_UNKNOWN;
m_working_size = item->working_size64!=SVN_INVALID_FILESIZE?qlonglong(item->working_size64):SVNQT_SIZE_UNKNOWN;
if (m_working_size == SVNQT_SIZE_UNKNOWN) {
m_working_size = item->working_size!=SVN_INFO_SIZE_UNKNOWN?qlonglong(item->working_size):SVNQT_SIZE_UNKNOWN;
}
#elif (SVN_VER_MINOR == 5)
m_size = item->size!=SVN_INFO_SIZE_UNKNOWN?qlonglong(item->size):SVNQT_SIZE_UNKNOWN;
m_working_size = item->working_size!=SVN_INFO_SIZE_UNKNOWN?qlonglong(item->working_size):SVNQT_SIZE_UNKNOWN;
#endif
#if ((SVN_VER_MAJOR == 1) && (SVN_VER_MINOR >= 5)) || (SVN_VER_MAJOR > 1)
if (item->changelist) {
m_changeList = QByteArray(item->changelist,strlen(item->changelist));
} else {
m_changeList=QByteArray();
}
switch (item->depth) {
case svn_depth_exclude:
m_depth=DepthExclude;
break;
case svn_depth_empty:
m_depth=DepthEmpty;
break;
case svn_depth_files:
m_depth=DepthFiles;
break;
case svn_depth_immediates:
m_depth=DepthImmediates;
break;
case svn_depth_infinity:
m_depth=DepthInfinity;
break;
case svn_depth_unknown:
default:
m_depth=DepthUnknown;
break;
}
#else
m_size = SVNQT_SIZE_UNKNOWN;
m_working_size = SVNQT_SIZE_UNKNOWN;
m_changeList=QByteArray();
m_depth = DepthUnknown;
#endif
}
void svn::InfoEntry::init(const svn_client_info2_t *item, const QString &path)
{
if (!item) {
init();
return;
}
m_name = path;
m_last_changed_date = DateTime(item->last_changed_date);
if (item->lock) {
m_Lock.init(item->lock);
} else {
m_Lock = LockEntry();
}
m_size = item->size != SVN_INVALID_FILESIZE ? qlonglong(item->size) : SVNQT_SIZE_UNKNOWN;
m_repos_root = QUrl::fromEncoded(item->repos_root_URL);
m_url = QUrl::fromEncoded(item->URL);
m_UUID = QString::fromUtf8(item->repos_UUID);
m_kind = item->kind;
m_revision = item->rev;
m_last_changed_rev = item->last_changed_rev;
m_last_author = QString::fromUtf8(item->last_changed_author);
if (item->wc_info != 0) {
m_hasWc = true;
m_schedule = item->wc_info->schedule;
if (item->wc_info->copyfrom_url)
m_copyfrom_url = QUrl::fromEncoded(item->wc_info->copyfrom_url);
else
m_copyfrom_url.clear();
m_copy_from_rev = item->wc_info->copyfrom_rev;
if (item->wc_info->changelist) {
m_changeList = QByteArray(item->wc_info->changelist, strlen(item->wc_info->changelist));
} else {
m_changeList = QByteArray();
}
if (item->wc_info->conflicts != 0) {
for (int j = 0; j < item->wc_info->conflicts->nelts; ++j) {
svn_wc_conflict_description2_t *_desc = ((svn_wc_conflict_description2_t **)item->wc_info->conflicts->elts)[j];
m_conflicts.push_back(ConflictDescriptionP(new ConflictDescription(_desc)));
}
}
switch (item->wc_info->depth) {
case svn_depth_exclude:
m_depth = DepthExclude;
break;
case svn_depth_empty:
m_depth = DepthEmpty;
break;
case svn_depth_files:
m_depth = DepthFiles;
break;
case svn_depth_immediates:
m_depth = DepthImmediates;
break;
case svn_depth_infinity:
m_depth = DepthInfinity;
break;
case svn_depth_unknown:
default:
m_depth = DepthUnknown;
break;
}
} else {
m_hasWc = false;
}
}
