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authorBenoit Foucher <benoit@zeroc.com>2009-03-24 11:45:18 +0100
committerBenoit Foucher <benoit@zeroc.com>2009-03-24 11:45:18 +0100
commit06a08ecf28e205277336a97a6173db7ccbed1adc (patch)
treea369a5044a63f8cdba9e7c0a461e24ae344486b4 /cpp/src/Ice/ThreadPool.cpp
parentMerge branch 'R3_3_branch' (diff)
parentBug 3924: slice2py missing from VC60 installer (diff)
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Merge commit 'origin/R3_3_branch'
Conflicts: CHANGES cpp/demo/Freeze/backup/.depend cpp/demo/Freeze/bench/.depend cpp/demo/Freeze/casino/.depend cpp/demo/Freeze/customEvictor/.depend cpp/demo/Freeze/library/.depend cpp/demo/Freeze/phonebook/.depend cpp/demo/Freeze/transform/.depend cpp/demo/Glacier2/callback/.depend cpp/demo/Glacier2/chat/.depend cpp/demo/Ice/async/.depend cpp/demo/Ice/bidir/.depend cpp/demo/Ice/callback/.depend cpp/demo/Ice/converter/.depend cpp/demo/Ice/hello/.depend cpp/demo/Ice/invoke/.depend cpp/demo/Ice/latency/.depend cpp/demo/Ice/minimal/.depend cpp/demo/Ice/multicast/.depend cpp/demo/Ice/nested/.depend cpp/demo/Ice/nrvo/.depend cpp/demo/Ice/session/.depend cpp/demo/Ice/throughput/.depend cpp/demo/Ice/value/.depend cpp/demo/IceBox/hello/.depend cpp/demo/IceGrid/allocate/.depend cpp/demo/IceGrid/icebox/.depend cpp/demo/IceGrid/replication/.depend cpp/demo/IceGrid/sessionActivation/.depend cpp/demo/IceGrid/simple/.depend cpp/demo/IceStorm/clock/.depend cpp/demo/IceStorm/counter/.depend cpp/demo/IceStorm/replicated/.depend cpp/demo/IceStorm/replicated2/.depend cpp/demo/book/freeze_filesystem/.depend cpp/demo/book/lifecycle/.depend cpp/demo/book/printer/.depend cpp/demo/book/simple_filesystem/.depend cpp/src/Freeze/.depend cpp/src/FreezeScript/.depend cpp/src/Ice/.depend cpp/src/Ice/UdpTransceiver.cpp cpp/src/Ice/UdpTransceiver.h cpp/src/IceBox/.depend cpp/src/IceGrid/.depend cpp/src/IceGridLib/.depend cpp/src/IcePatch2/.depend cpp/src/IceStorm/.depend cpp/src/slice2freeze/.depend cpp/test/Freeze/complex/.depend cpp/test/Freeze/dbmap/.depend cpp/test/Freeze/evictor/.depend cpp/test/Freeze/oldevictor/.depend cpp/test/FreezeScript/dbmap/.depend cpp/test/FreezeScript/evictor/.depend cpp/test/Glacier2/attack/.depend cpp/test/Glacier2/dynamicFiltering/.depend cpp/test/Glacier2/router/.depend cpp/test/Glacier2/sessionControl/.depend cpp/test/Glacier2/ssl/.depend cpp/test/Glacier2/staticFiltering/.depend cpp/test/Ice/adapterDeactivation/.depend cpp/test/Ice/background/.depend cpp/test/Ice/binding/.depend cpp/test/Ice/checksum/.depend cpp/test/Ice/checksum/server/.depend cpp/test/Ice/custom/.depend cpp/test/Ice/exceptions/.depend cpp/test/Ice/facets/.depend cpp/test/Ice/faultTolerance/.depend cpp/test/Ice/gc/.depend cpp/test/Ice/hold/.depend cpp/test/Ice/inheritance/.depend cpp/test/Ice/interceptor/.depend cpp/test/Ice/location/.depend cpp/test/Ice/objects/.depend cpp/test/Ice/operations/.depend cpp/test/Ice/proxy/.depend cpp/test/Ice/retry/.depend cpp/test/Ice/servantLocator/.depend cpp/test/Ice/slicing/exceptions/.depend cpp/test/Ice/slicing/objects/.depend cpp/test/Ice/stream/.depend cpp/test/Ice/stringConverter/.depend cpp/test/Ice/timeout/.depend cpp/test/Ice/udp/.depend cpp/test/IceBox/configuration/.depend cpp/test/IceGrid/activation/.depend cpp/test/IceGrid/allocation/.depend cpp/test/IceGrid/deployer/.depend cpp/test/IceGrid/distribution/.depend cpp/test/IceGrid/replicaGroup/.depend cpp/test/IceGrid/replication/.depend cpp/test/IceGrid/session/.depend cpp/test/IceGrid/simple/.depend cpp/test/IceGrid/update/.depend cpp/test/IceSSL/configuration/.depend cpp/test/IceStorm/federation/.depend cpp/test/IceStorm/federation2/.depend cpp/test/IceStorm/rep1/.depend cpp/test/IceStorm/repgrid/.depend cpp/test/IceStorm/repstress/.depend cpp/test/IceStorm/single/.depend cpp/test/IceStorm/stress/.depend cpp/test/Slice/keyword/.depend cs/src/Ice/Instance.cs cs/src/IceSSL/ConnectorI.cs java/demo/book/simple_filesystem/Filesystem/DirectoryI.java java/demo/book/simple_filesystem/Filesystem/FileI.java java/src/IceInternal/TcpConnector.java java/src/IceSSL/ConnectorI.java py/modules/IcePy/.depend rb/src/IceRuby/.depend
Diffstat (limited to 'cpp/src/Ice/ThreadPool.cpp')
-rw-r--r--cpp/src/Ice/ThreadPool.cpp114
1 files changed, 62 insertions, 52 deletions
diff --git a/cpp/src/Ice/ThreadPool.cpp b/cpp/src/Ice/ThreadPool.cpp
index ab41198104c..63fc22a7f11 100644
--- a/cpp/src/Ice/ThreadPool.cpp
+++ b/cpp/src/Ice/ThreadPool.cpp
@@ -554,74 +554,84 @@ IceInternal::ThreadPool::run()
handler->_serializing = false;
}
- //
- // First we reap threads that have been destroyed before.
- //
- int sz = static_cast<int>(_threads.size());
- assert(_running <= sz);
- if(_running < sz)
+ if(_size < _sizeMax) // Dynamic thread pool
{
- vector<IceUtil::ThreadPtr>::iterator start =
- partition(_threads.begin(), _threads.end(), IceUtil::constMemFun(&IceUtil::Thread::isAlive));
-
- for(vector<IceUtil::ThreadPtr>::iterator p = start; p != _threads.end(); ++p)
+ //
+ // First we reap threads that have been destroyed before.
+ //
+ int sz = static_cast<int>(_threads.size());
+ assert(_running <= sz);
+ if(_running < sz)
{
- (*p)->getThreadControl().join();
- }
+ vector<IceUtil::ThreadPtr>::iterator start =
+ partition(_threads.begin(), _threads.end(),
+ IceUtil::constMemFun(&IceUtil::Thread::isAlive));
- _threads.erase(start, _threads.end());
- }
-
- //
- // Now we check if this thread can be destroyed, based
- // on a load factor.
- //
+ for(vector<IceUtil::ThreadPtr>::iterator p = start; p != _threads.end(); ++p)
+ {
+ (*p)->getThreadControl().join();
+ }
- //
- // The load factor jumps immediately to the number of
- // threads that are currently in use, but decays
- // exponentially if the number of threads in use is
- // smaller than the load factor. This reflects that we
- // create threads immediately when they are needed,
- // but want the number of threads to slowly decline to
- // the configured minimum.
- //
- double inUse = static_cast<double>(_inUse);
- if(_load < inUse)
- {
- _load = inUse;
- }
- else
- {
- const double loadFactor = 0.05; // TODO: Configurable?
- const double oneMinusLoadFactor = 1 - loadFactor;
- _load = _load * oneMinusLoadFactor + inUse * loadFactor;
- }
+ _threads.erase(start, _threads.end());
+ }
- if(_running > _size)
- {
- int load = static_cast<int>(_load + 0.5);
+ //
+ // Now we check if this thread can be destroyed, based
+ // on a load factor.
+ //
//
- // We add one to the load factor because on
- // additional thread is needed for select().
+ // The load factor jumps immediately to the number of
+ // threads that are currently in use, but decays
+ // exponentially if the number of threads in use is
+ // smaller than the load factor. This reflects that we
+ // create threads immediately when they are needed,
+ // but want the number of threads to slowly decline to
+ // the configured minimum.
//
- if(load + 1 < _running)
+ double inUse = static_cast<double>(_inUse);
+ if(_load < inUse)
+ {
+ _load = inUse;
+ }
+ else
{
- assert(_inUse > 0);
- --_inUse;
+ const double loadFactor = 0.05; // TODO: Configurable?
+ const double oneMinusLoadFactor = 1 - loadFactor;
+ _load = _load * oneMinusLoadFactor + inUse * loadFactor;
+ }
+
+ if(_running > _size)
+ {
+ int load = static_cast<int>(_load + 0.5);
+
+ //
+ // We add one to the load factor because on
+ // additional thread is needed for select().
+ //
+ if(load + 1 < _running)
+ {
+ assert(_inUse > 0);
+ --_inUse;
- assert(_running > 0);
- --_running;
+ assert(_running > 0);
+ --_running;
- return false;
+ return false;
+ }
}
}
-
+
assert(_inUse > 0);
--_inUse;
}
-
+
+ //
+ // Do not wait to be promoted again to release these objects.
+ //
+ handler = 0;
+ workItem = 0;
+
while(!_promote)
{
wait();