Moved scheduler and thread pool to libstrongswan.

1 files changed, 94 insertions, 0 deletions

diff --git a/src/libstrongswan/processing/processor.h b/src/libstrongswan/processing/processor.h
new file mode 100644
index 000000000..bebbe3a15
--- /dev/null
+++ b/src/libstrongswan/processing/processor.h
@@ -0,0 +1,94 @@
+/*
+ * Copyright (C) 2005-2007 Martin Willi
+ * Copyright (C) 2005 Jan Hutter
+ * Hochschule fuer Technik Rapperswil
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.  See <http://www.fsf.org/copyleft/gpl.txt>.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ * or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * for more details.
+ */
+
+/**
+ * @defgroup processor processor
+ * @{ @ingroup processing
+ */
+
+#ifndef PROCESSOR_H_
+#define PROCESSOR_H_
+
+typedef struct processor_t processor_t;
+
+#include <stdlib.h>
+
+#include <library.h>
+#include <processing/jobs/job.h>
+
+/**
+ * The processor uses threads to process queued jobs.
+ */
+struct processor_t {
+
+	/**
+	 * Get the total number of threads used by the processor.
+	 *
+	 * @return				size of thread pool
+	 */
+	u_int (*get_total_threads) (processor_t *this);
+
+	/**
+	 * Get the number of threads currently waiting.
+	 *
+	 * @return				number of idle threads
+	 */
+	u_int (*get_idle_threads) (processor_t *this);
+
+	/**
+	 * Get the number of queued jobs.
+	 *
+	 * @return				number of items in queue
+	 */
+	u_int (*get_job_load) (processor_t *this);
+
+	/**
+	 * Adds a job to the queue.
+	 *
+	 * This function is non blocking and adds a job_t to the queue.
+	 *
+	 * @param job			job to add to the queue
+	 */
+	void (*queue_job) (processor_t *this, job_t *job);
+
+	/**
+	 * Set the number of threads to use in the processor.
+	 *
+	 * If the number of threads is smaller than number of currently running
+	 * threads, thread count is decreased. Use 0 to disable the processor.
+	 * This call blocks if it decreases thread count until threads have
+	 * terminated, so make sure there are not too many blocking jobs.
+	 *
+	 * @param count			number of threads to allocate
+	 */
+	void (*set_threads)(processor_t *this, u_int count);
+
+	/**
+	 * Destroy a processor object.
+	 */
+	void (*destroy) (processor_t *processor);
+};
+
+/**
+ * Create the thread pool without any threads.
+ *
+ * Use the set_threads method to start processing jobs.
+ *
+ * @return					processor_t object
+ */
+processor_t *processor_create();
+
+#endif /** PROCESSOR_H_ @}*/