further work done for simultaneous rekeying/delete
still some cases which cause trouble
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@@ -1,8 +1,8 @@
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/**
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* @file thread_pool.c
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*
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*
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* @brief Implementation of thread_pool_t.
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*
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*
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*/
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/*
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@@ -57,12 +57,7 @@ struct private_thread_pool_t {
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/**
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* Logger of the thread pool.
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*/
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logger_t *pool_logger;
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/**
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* Logger of the worker threads.
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*/
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logger_t *worker_logger;
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logger_t *logger;
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} ;
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/**
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@@ -76,7 +71,9 @@ static void process_jobs(private_thread_pool_t *this)
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/* cancellation disabled by default */
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pthread_setcancelstate(PTHREAD_CANCEL_DISABLE, NULL);
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this->worker_logger->log(this->worker_logger, CONTROL, "worker thread running, thread_ID: %06u", (int)pthread_self());
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this->logger->log(this->logger, CONTROL,
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"worker thread running, thread_ID: %06u",
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(int)pthread_self());
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while (TRUE)
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{
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@@ -107,7 +104,8 @@ static void destroy(private_thread_pool_t *this)
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int current;
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/* flag thread for termination */
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for (current = 0; current < this->pool_size; current++) {
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this->pool_logger->log(this->pool_logger, CONTROL, "cancelling worker thread #%d", current+1);
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this->logger->log(this->logger, CONTROL,
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"cancelling worker thread #%d", current+1);
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pthread_cancel(this->threads[current]);
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}
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@@ -115,11 +113,13 @@ static void destroy(private_thread_pool_t *this)
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for (current = 0; current < this->pool_size; current++) {
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if (pthread_join(this->threads[current], NULL) == 0)
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{
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this->pool_logger->log(this->pool_logger, CONTROL, "worker thread #%d terminated", current+1);
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this->logger->log(this->logger, CONTROL,
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"worker thread #%d terminated", current+1);
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}
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else
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{
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this->pool_logger->log(this->pool_logger, ERROR, "could not terminate worker thread #%d", current+1);
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this->logger->log(this->logger, ERROR,
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"could not terminate worker thread #%d", current+1);
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}
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}
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@@ -143,32 +143,35 @@ thread_pool_t *thread_pool_create(size_t pool_size)
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/* initialize member */
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this->pool_size = pool_size;
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this->threads = malloc(sizeof(pthread_t) * pool_size);
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this->pool_logger = logger_manager->get_logger(logger_manager, THREAD_POOL);
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this->worker_logger = logger_manager->get_logger(logger_manager, WORKER);
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this->logger = logger_manager->get_logger(logger_manager, THREAD_POOL);
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/* try to create as many threads as possible, up to pool_size */
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for (current = 0; current < pool_size; current++)
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{
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if (pthread_create(&(this->threads[current]), NULL, (void*(*)(void*))process_jobs, this) == 0)
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if (pthread_create(&(this->threads[current]), NULL,
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(void*(*)(void*))process_jobs, this) == 0)
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{
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this->pool_logger->log(this->pool_logger, CONTROL, "created worker thread #%d", current+1);
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this->logger->log(this->logger, CONTROL,
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"created worker thread #%d", current+1);
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}
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else
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{
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/* creation failed, is it the first one? */
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if (current == 0)
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{
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this->pool_logger->log(this->pool_logger, ERROR, "Could not create any thread");
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this->logger->log(this->logger, ERROR, "Could not create any thread");
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free(this->threads);
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free(this);
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return NULL;
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}
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/* not all threads could be created, but at least one :-/ */
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this->pool_logger->log(this->pool_logger, ERROR, "Could only create %d from requested %d threads!", current, pool_size);
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this->logger->log(this->logger, ERROR,
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"Could only create %d from requested %d threads!",
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current, pool_size);
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this->pool_size = current;
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return (thread_pool_t*)this;
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}
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}
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}
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return (thread_pool_t*)this;
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}
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