Add thread pool

Included if pthreads are found, can be disabled with --enable-pthreadpool=no

Tim, Steven, I haven't yet seen comments from you. You have been asking for
such a thing at SambaXP. Do you like this? :-)

1 files changed, 42 insertions, 0 deletions

diff --git a/source3/include/pthreadpool.h b/source3/include/pthreadpool.h
new file mode 100644
index 0000000000..7ef7ddf419
--- /dev/null
+++ b/source3/include/pthreadpool.h
@@ -0,0 +1,42 @@
+/*
+ * Unix SMB/CIFS implementation.
+ * threadpool implementation based on pthreads
+ * Copyright (C) Volker Lendecke 2009
+ *
+ * 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 3 of the License, or
+ * (at your option) any later version.
+ *
+ * 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.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef __PTHREADPOOL_H__
+#define __PTHREADPOOL_H__
+
+struct pthreadpool;
+
+int pthreadpool_init(unsigned max_threads, struct pthreadpool **presult);
+int pthreadpool_destroy(struct pthreadpool *pool);
+
+/*
+ * Add a job to a pthreadpool.
+ */
+int pthreadpool_add_job(struct pthreadpool *pool, int job_id,
+			void (*fn)(void *private_data), void *private_data);
+
+/*
+ * Get the signalling fd out of a thread pool. This fd will become readable
+ * when a job is finished. The job that finished can be retrieved via
+ * pthreadpool_finished_job().
+ */
+int pthreadpool_sig_fd(struct pthreadpool *pool);
+int pthreadpool_finished_job(struct pthreadpool *pool);
+
+#endif