/** this starts the worker threads and then waits for their results.
*/
private static List <string> _Get_egs_branches_threaded(Changeset cs,
ChangeTypeToConsiderDelegate op)
{
System.Threading.Thread[] threads;
_args args = new _args();
{
int cnt = FIND_THREAD_COUNT;
if (cnt < 1)
{
cnt = Environment.ProcessorCount;
if (cnt < 1)
{
cnt = 2;
}
}
threads = new System.Threading.Thread[cnt];
}
args.itemBranches = new List <string>();
args.rwlock = new System.Threading.ReaderWriterLock();
args.changesLen = cs.Changes.Length;
args.changes = cs.Changes;
args.op = op;
for (int i = 0; i < threads.Length; ++i)
{
threads[i] = new System.Threading.Thread(new System.Threading.ParameterizedThreadStart(_egsbranches_worker));
threads[i].Priority = System.Threading.ThreadPriority.Lowest;
threads[i].Start(args);
}
for (int i = 0; i < threads.Length; ++i)
{
threads[i].Join();
}
return(args.itemBranches);
}
/** this starts the worker threads and then waits for their results.
*/
private static List <string> _get_egs_branches_threaded(Changeset cs)
{
System.Threading.Thread[] threads = new System.Threading.Thread[8];
_args args = new _args();
args.itemBranches = new List <string>();
args.rwlock = new System.Threading.ReaderWriterLock();
args.changesLen = cs.Changes.Length;
args.changes = cs.Changes;
for (int i = 0; i < threads.Length; ++i)
{
threads[i] = new System.Threading.Thread(new System.Threading.ParameterizedThreadStart(_egsbranches_worker));
threads[i].Priority = System.Threading.ThreadPriority.Lowest;
threads[i].Start(args);
}
for (int i = 0; i < threads.Length; ++i)
{
threads[i].Join();
}
return(args.itemBranches);
}
set => SetProperty(ref _args, value);
private static void _egsbranches_worker(object o)
{
_args args = o as _args;
bool done = false;
int res = System.Threading.Interlocked.Increment(ref args.ptr);
done = res >= args.changesLen;
while (!done)
{
string itemPath = args.changes[res].Path;
bool found = false;
int idx = 0;
int itemCount = 0;
try {
try {
args.rwlock.AcquireReaderLock(10 * 1000); /* 10 second timeout. */
itemCount = args.itemBranches.Count;
for (int j = 0; j < args.itemBranches.Count; ++j)
{
/* the stupid branches are not case sensitive. */
idx = itemPath.IndexOf(args.itemBranches[j],
StringComparison.InvariantCultureIgnoreCase);
if (idx == 0)
{
found = true; break;
}
}
}
finally
{
args.rwlock.ReleaseReaderLock();
}
} catch (ApplicationException) { /* we lost the lock. */ }
if (!found)
{
/* yeah steve, '/EGS8.2' sucks now doesn't it... */
string str = "/EGS/";
/* the stupid branches are not case sensitive. */
idx = itemPath.IndexOf(str, StringComparison.InvariantCultureIgnoreCase);
if (idx > 0)
{
itemPath = itemPath.Substring(0, idx + str.Length);
#if DEBUG
if (itemPath.IndexOf("$/IGT_0803/") == 0)
{
#endif
try {
try {
bool reallyFound = false;
args.rwlock.AcquireWriterLock(60 * 1000); /* 1 minute timeout. */
if (itemCount != args.itemBranches.Count)
{
/* look again. */
for (int j = 0; j < args.itemBranches.Count; ++j)
{
idx = itemPath.IndexOf(args.itemBranches[j],
StringComparison.InvariantCultureIgnoreCase);
if (idx == 0)
{
reallyFound = true; break;
}
}
}
if (!reallyFound)
{
args.itemBranches.Add(itemPath);
}
}
finally { args.rwlock.ReleaseWriterLock(); }
}
catch (ApplicationException) { /* we lost the lock. */ }
#if DEBUG
}
else
{
Console.Error.WriteLine("'{0}' turned into '{1}'!",
args.changes[res].Path,
itemPath);
}
#endif
}
}
/* setup for the next loop. */
res = System.Threading.Interlocked.Increment(ref args.ptr);
done = res >= args.changesLen;
}
}
private static void _egsbranches_worker(object o)
{
_args args = o as _args;
bool done = false;
int res = System.Threading.Interlocked.Increment(ref args.ptr);
done = res >= args.changesLen;
while (!done)
{
string itemPath = args.changes[res].Item.ServerItem;
bool found = false;
int idx = 0;
int itemCount = 0;
/* skip all non-merge changesets. */
if (args.op(args.changes[res]))
{
/* this section compares the given path to the set we already have. */
try {
try {
args.rwlock.AcquireReaderLock(10 * 1000); /* 10 second timeout. */
/* we use this count later on to 'detect'
* whether or not a sister branch added a branch to the list
* if one did, we need to re-check the list
* (they could have added the branch we're going to add
*/
itemCount = args.itemBranches.Count;
for (int j = 0; j < args.itemBranches.Count; ++j)
{
/* the stupid branches are not case sensitive. */
idx = itemPath.IndexOf(args.itemBranches[j],
StringComparison.InvariantCultureIgnoreCase);
if (idx == 0)
{
found = true; break;
}
}
}
finally
{
args.rwlock.ReleaseReaderLock();
}
} catch (ApplicationException) { /* we lost the lock. */ }
if (!found)
{
/* yeah steve, '/EGS8.2' sucks now doesn't it... */
string str = "/EGS/";
/* the stupid branches are not case sensitive. */
idx = itemPath.IndexOf(str, StringComparison.InvariantCultureIgnoreCase);
if (idx > 0)
{
itemPath = itemPath.Substring(0, idx + str.Length);
#if DEBUG
if (itemPath.IndexOf("$/IGT_0803/") == 0)
{
#endif
try {
try {
bool reallyFound = false;
/* 1 minute timeout. */
args.rwlock.AcquireWriterLock(60 * 1000);
if (itemCount != args.itemBranches.Count)
{
/* so one of our sister threads added a branch.
* we have to look again.
*/
for (int j = 0; j < args.itemBranches.Count; ++j)
{
idx = itemPath.IndexOf(args.itemBranches[j],
StringComparison.InvariantCultureIgnoreCase);
if (idx == 0)
{
reallyFound = true; break;
}
}
}
if (!reallyFound)
{
Logger.logger.DebugFormat("branch={0}", itemPath);
args.itemBranches.Add(itemPath);
}
}
finally
{
/* i think this call can throw the ApplicationException
* which is why there are 2 trys, but only one catch.
* this finally is here to protect the rwlock.
* we want to ensure that it will always get released
* if feces contacts a fan...
*/
args.rwlock.ReleaseWriterLock();
}
}
catch (ApplicationException) { /* we lost the lock. */ }
#if DEBUG
}
else
{
Console.Error.WriteLine("'{0}' turned into '{1}'!",
args.changes[res].Item.ServerItem,
itemPath);
}
#endif
}
}
}
/* setup for the next loop. */
res = System.Threading.Interlocked.Increment(ref args.ptr);
done = res >= args.changesLen;
}
}
