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// Copyright Vespa.ai. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
#pragma once
#include "threadstackexecutorbase.h"
namespace vespalib {
/**
* An executor service that executes tasks in multiple threads.
**/
class BlockingThreadStackExecutor : public ThreadStackExecutorBase
{
public:
bool acceptNewTask(unique_lock & guard, std::condition_variable & cond) override;
void wakeup(unique_lock & guard, std::condition_variable &) override;
/**
* Create a new blocking thread stack executor. The task limit specifies
* the maximum number of tasks that are currently handled by this
* executor. Trying to execute more tasks will block.
*
* @param threads number of worker threads (concurrent tasks)
* @param taskLimit upper limit on accepted tasks
**/
BlockingThreadStackExecutor(uint32_t threads, uint32_t taskLimit);
// same as above, but enables you to specify a custom function
// used to wrap the main loop of all worker threads
BlockingThreadStackExecutor(uint32_t threads, uint32_t taskLimit, init_fun_t init_function);
~BlockingThreadStackExecutor() override;
};
} // namespace vespalib
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