/// Start all io_service objects, default with non-bocked mode.
void start(bool blocked = false)
{
if (!threads_.empty())
return;
{
// Lock for synchronize access to data.
scoped_lock_t lock(mutex_);
blocked_ = blocked;
// Create additional io_service pool.
for (size_t i = io_services_.size(); i < pool_init_size_; ++i)
io_services_.push_back(io_service_ptr(new boost::asio::io_service));
// Release redundant io_service pool.
for (size_t i = io_services_.size(); i > pool_init_size_; --i)
io_services_.pop_back();
// The pool is still idle now, set to true.
idle_ = true;
// Start all io_service.
for (size_t i = io_services_.size(); i > 0 ; --i)
start_one(io_services_[i - 1]);
}
// If in block mode, wait for all threads to exit.
if (blocked_)
wait();
}
ServicePool::ServicePool(size_t servicesCount)
: servicesCount(servicesCount)
{
for (size_t i = 0; i < servicesCount; ++i) {
services.push_back(io_service_ptr(new asio::io_service()));
serviceWorks.push_back(asio::io_service::work(*services.back()));
}
}
/// Constructor.
io_service_pool(size_t pool_init_size = BAS_IO_SERVICE_POOL_INIT_SIZE,
size_t pool_high_watermark = BAS_IO_SERVICE_POOL_HIGH_WATERMARK,
size_t pool_thread_load = BAS_IO_SERVICE_POOL_THREAD_LOAD)
: mutex_(),
io_services_(),
threads_(),
work_(),
pool_init_size_(pool_init_size),
pool_high_watermark_(pool_high_watermark),
pool_thread_load_(pool_thread_load),
next_io_service_(0),
blocked_(false),
idle_(true)
{
BOOST_ASSERT(pool_init_size_ != 0);
BOOST_ASSERT(pool_high_watermark_ >= pool_init_size_);
BOOST_ASSERT(pool_thread_load_ != 0);
// Create io_service pool.
for (size_t i = 0; i < pool_init_size_; ++i)
io_services_.push_back(io_service_ptr(new boost::asio::io_service));
}