Attachment 11918 Details for Bug 11771 – Patch for 4.2 backported from master

[patch] Patch for 4.2 backported from master

v42-tevent.patch (text/plain), 69.83 KB, created by Ralph Böhme on 2016-03-14 14:28:48 UTC

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Creator: Ralph Böhme

Created: 2016-03-14 14:28:48 UTC

Size: 69.83 KB

patch

obsolete

>From ad1255569ffdc533b426b84026e552844123c73d Mon Sep 17 00:00:00 2001
>From: Jeremy Allison <jra@samba.org>
>Date: Thu, 23 Jul 2015 15:23:50 -0700
>Subject: [PATCH 01/13] lib: tevent: Initial checkin of threaded tevent context
> calling code.
>
>Adds 2 new functions:
>
>struct tevent_thread_proxy *tevent_thread_proxy_create(
>                struct tevent_context *dest_ev_ctx);
>
>void tevent_thread_proxy_schedule(struct tevent_thread_proxy *tp,
>		struct tevent_immediate **pp_im,
>		tevent_immediate_handler_t handler,
>		void *pp_private_data);
>
>Brief doc included. Tests, docs and tutorial to follow.
>
>Bug: https://bugzilla.samba.org/show_bug.cgi?id=11771
>
>Signed-off-by: Jeremy Allison <jra@samba.org>
>Signed-off-by: Ralph Boehme <slow@samba.org>
>Reviewed-by: Stefan Metzmacher <metze@samba.org>
>(cherry picked from commit 49bddd8e4756ef52b05b850aec4864749fcf31cb)
>---
> lib/tevent/tevent.h         |  52 +++++++
> lib/tevent/tevent_threads.c | 370 ++++++++++++++++++++++++++++++++++++++++++++
> lib/tevent/wscript          |   2 +-
> 3 files changed, 423 insertions(+), 1 deletion(-)
> create mode 100644 lib/tevent/tevent_threads.c
>
>diff --git a/lib/tevent/tevent.h b/lib/tevent/tevent.h
>index b6c39d1..cb95507 100644
>--- a/lib/tevent/tevent.h
>+++ b/lib/tevent/tevent.h
>@@ -39,6 +39,7 @@ struct tevent_fd;
> struct tevent_timer;
> struct tevent_immediate;
> struct tevent_signal;
>+struct tevent_thread_proxy;
> 
> /**
>  * @defgroup tevent The tevent API
>@@ -1698,6 +1699,57 @@ typedef int (*tevent_nesting_hook)(struct tevent_context *ev,
> 				   bool begin,
> 				   void *stack_ptr,
> 				   const char *location);
>+
>+/**
>+ * @brief Create a tevent_thread_proxy for message passing between threads.
>+ *
>+ * The tevent_context must have been allocated on the NULL
>+ * talloc context, and talloc_disable_null_tracking() must
>+ * have been called.
>+ *
>+ * @param[in]  dest_ev_ctx      The tevent_context to receive events.
>+ *
>+ * @return              An allocated tevent_thread_proxy, NULL on error.
>+ *                      If tevent was compiled without PTHREAD support
>+ *                      NULL is always returned and errno set to ENOSYS.
>+ *
>+ * @see tevent_thread_proxy_schedule()
>+ */
>+struct tevent_thread_proxy *tevent_thread_proxy_create(
>+                struct tevent_context *dest_ev_ctx);
>+
>+/**
>+ * @brief Schedule an immediate event on an event context from another thread.
>+ *
>+ * Causes dest_ev_ctx, being run by another thread, to receive an
>+ * immediate event calling the handler with the *pp_private parameter.
>+ *
>+ * *pp_im must be a pointer to an immediate event talloced on a context owned
>+ * by the calling thread, or the NULL context. Ownership will
>+ * be transferred to the tevent_thread_proxy and *pp_im will be returned as NULL.
>+ *
>+ * *pp_private_data must be a talloced area of memory with no destructors.
>+ * Ownership of this memory will be transferred to the tevent library and
>+ * *pp_private_data will be set to NULL on successful completion of
>+ * the call. Set pp_private to NULL if no parameter transfer
>+ * needed (a pure callback). This is an asynchronous request, caller
>+ * does not wait for callback to be completed before returning.
>+ *
>+ * @param[in]  tp               The tevent_thread_proxy to use.
>+ *
>+ * @param[in]  pp_im            Pointer to immediate event pointer.
>+ *
>+ * @param[in]  handler          The function that will be called.
>+ *
>+ * @param[in]  pp_private_data  The talloced memory to transfer.
>+ *
>+ * @see tevent_thread_proxy_create()
>+ */
>+void tevent_thread_proxy_schedule(struct tevent_thread_proxy *tp,
>+				  struct tevent_immediate **pp_im,
>+				  tevent_immediate_handler_t handler,
>+				  void *pp_private_data);
>+
> #ifdef TEVENT_DEPRECATED
> #ifndef _DEPRECATED_
> #if (__GNUC__ >= 3) && (__GNUC_MINOR__ >= 1 )
>diff --git a/lib/tevent/tevent_threads.c b/lib/tevent/tevent_threads.c
>new file mode 100644
>index 0000000..8d44e4f
>--- /dev/null
>+++ b/lib/tevent/tevent_threads.c
>@@ -0,0 +1,370 @@
>+/*
>+   tevent event library.
>+
>+   Copyright (C) Jeremy Allison 2015
>+
>+     ** NOTE! The following LGPL license applies to the tevent
>+     ** library. This does NOT imply that all of Samba is released
>+     ** under the LGPL
>+
>+   This library is free software; you can redistribute it and/or
>+   modify it under the terms of the GNU Lesser General Public
>+   License as published by the Free Software Foundation; either
>+   version 3 of the License, or (at your option) any later version.
>+
>+   This library 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
>+   Lesser General Public License for more details.
>+
>+   You should have received a copy of the GNU Lesser General Public
>+   License along with this library; if not, see <http://www.gnu.org/licenses/>.
>+*/
>+
>+#include "replace.h"
>+#include "system/filesys.h"
>+#include "talloc.h"
>+#include "tevent.h"
>+#include "tevent_internal.h"
>+#include "tevent_util.h"
>+
>+#if defined(HAVE_PTHREAD)
>+#include <pthread.h>
>+
>+struct tevent_immediate_list {
>+	struct tevent_immediate_list *next, *prev;
>+	tevent_immediate_handler_t handler;
>+	struct tevent_immediate *im;
>+	void *private_ptr;
>+};
>+
>+struct tevent_thread_proxy {
>+	pthread_mutex_t mutex;
>+	struct tevent_context *dest_ev_ctx;
>+	int read_fd;
>+	int write_fd;
>+	struct tevent_fd *pipe_read_fde;
>+	/* Pending events list. */
>+	struct tevent_immediate_list *im_list;
>+	/* Completed events list. */
>+	struct tevent_immediate_list *tofree_im_list;
>+	struct tevent_immediate *free_im;
>+};
>+
>+static void free_im_list(struct tevent_immediate_list **pp_list_head)
>+{
>+	struct tevent_immediate_list *im_entry = NULL;
>+	struct tevent_immediate_list *im_next = NULL;
>+
>+	for (im_entry = *pp_list_head; im_entry; im_entry = im_next) {
>+		im_next = im_entry->next;
>+		DLIST_REMOVE(*pp_list_head, im_entry);
>+		TALLOC_FREE(im_entry);
>+	}
>+}
>+
>+static void free_list_handler(struct tevent_context *ev,
>+				struct tevent_immediate *im,
>+				void *private_ptr)
>+{
>+	struct tevent_thread_proxy *tp =
>+		talloc_get_type_abort(private_ptr, struct tevent_thread_proxy);
>+	int ret;
>+
>+	ret = pthread_mutex_lock(&tp->mutex);
>+	if (ret != 0) {
>+		abort();
>+		/* Notreached. */
>+		return;
>+	}
>+
>+	free_im_list(&tp->tofree_im_list);
>+
>+	ret = pthread_mutex_unlock(&tp->mutex);
>+	if (ret != 0) {
>+		abort();
>+		/* Notreached. */
>+		return;
>+	}
>+}
>+
>+static void schedule_immediate_functions(struct tevent_thread_proxy *tp)
>+{
>+	struct tevent_immediate_list *im_entry = NULL;
>+	struct tevent_immediate_list *im_next = NULL;
>+
>+	for (im_entry = tp->im_list; im_entry; im_entry = im_next) {
>+		im_next = im_entry->next;
>+		DLIST_REMOVE(tp->im_list, im_entry);
>+
>+		tevent_schedule_immediate(im_entry->im,
>+					tp->dest_ev_ctx,
>+					im_entry->handler,
>+					im_entry->private_ptr);
>+
>+		/* Move from pending list to free list. */
>+		DLIST_ADD(tp->tofree_im_list, im_entry);
>+	}
>+	if (tp->tofree_im_list != NULL) {
>+		/*
>+		 * Once the current immediate events
>+		 * are processed, we need to reshedule
>+		 * ourselves to free them. This works
>+		 * as tevent_schedule_immediate()
>+		 * always adds events to the *END* of
>+		 * the immediate events list.
>+		 */
>+		tevent_schedule_immediate(tp->free_im,
>+					tp->dest_ev_ctx,
>+					free_list_handler,
>+					tp);
>+	}
>+}
>+
>+static void pipe_read_handler(struct tevent_context *ev,
>+				struct tevent_fd *fde,
>+				uint16_t flags,
>+				void *private_ptr)
>+{
>+	struct tevent_thread_proxy *tp =
>+		talloc_get_type_abort(private_ptr, struct tevent_thread_proxy);
>+	ssize_t len = 64;
>+	int ret;
>+
>+	ret = pthread_mutex_lock(&tp->mutex);
>+	if (ret != 0) {
>+		abort();
>+		/* Notreached. */
>+		return;
>+	}
>+
>+	/*
>+	 * Clear out all data in the pipe. We
>+	 * don't really care if this returns -1.
>+	 */
>+	while (len == 64) {
>+		char buf[64];
>+		len = read(tp->read_fd, buf, 64);
>+	};
>+
>+	schedule_immediate_functions(tp);
>+
>+	ret = pthread_mutex_unlock(&tp->mutex);
>+	if (ret != 0) {
>+		abort();
>+		/* Notreached. */
>+		return;
>+	}
>+}
>+
>+static int tevent_thread_proxy_destructor(struct tevent_thread_proxy *tp)
>+{
>+	int ret;
>+
>+	ret = pthread_mutex_lock(&tp->mutex);
>+	if (ret != 0) {
>+		abort();
>+		/* Notreached. */
>+		return 0;
>+	}
>+
>+	TALLOC_FREE(tp->pipe_read_fde);
>+
>+	if (tp->read_fd != -1) {
>+		(void)close(tp->read_fd);
>+		tp->read_fd = -1;
>+	}
>+	if (tp->write_fd != -1) {
>+		(void)close(tp->write_fd);
>+		tp->write_fd = -1;
>+	}
>+
>+	/* Hmmm. It's probably an error if we get here with
>+	   any non-NULL immediate entries.. */
>+
>+	free_im_list(&tp->im_list);
>+	free_im_list(&tp->tofree_im_list);
>+
>+	TALLOC_FREE(tp->free_im);
>+
>+	ret = pthread_mutex_unlock(&tp->mutex);
>+	if (ret != 0) {
>+		abort();
>+		/* Notreached. */
>+		return 0;
>+	}
>+
>+	ret = pthread_mutex_destroy(&tp->mutex);
>+	if (ret != 0) {
>+		abort();
>+		/* Notreached. */
>+		return 0;
>+	}
>+
>+	return 0;
>+}
>+
>+/*
>+ * Create a struct that can be passed to other threads
>+ * to allow them to signal the struct tevent_context *
>+ * passed in.
>+ */
>+
>+struct tevent_thread_proxy *tevent_thread_proxy_create(
>+		struct tevent_context *dest_ev_ctx)
>+{
>+	int ret;
>+	int pipefds[2];
>+	struct tevent_thread_proxy *tp;
>+
>+	tp = talloc_zero(dest_ev_ctx, struct tevent_thread_proxy);
>+	if (tp == NULL) {
>+		return NULL;
>+	}
>+
>+	ret = pthread_mutex_init(&tp->mutex, NULL);
>+	if (ret != 0) {
>+		goto fail;
>+	}
>+
>+	tp->dest_ev_ctx = dest_ev_ctx;
>+	tp->read_fd = -1;
>+	tp->write_fd = -1;
>+
>+	talloc_set_destructor(tp, tevent_thread_proxy_destructor);
>+
>+	ret = pipe(pipefds);
>+	if (ret == -1) {
>+		goto fail;
>+	}
>+
>+	tp->read_fd = pipefds[0];
>+	tp->write_fd = pipefds[1];
>+
>+	ret = ev_set_blocking(pipefds[0], false);
>+	if (ret != 0) {
>+		goto fail;
>+	}
>+	ret = ev_set_blocking(pipefds[1], false);
>+	if (ret != 0) {
>+		goto fail;
>+	}
>+	if (!ev_set_close_on_exec(pipefds[0])) {
>+		goto fail;
>+	}
>+	if (!ev_set_close_on_exec(pipefds[1])) {
>+		goto fail;
>+	}
>+
>+	tp->pipe_read_fde = tevent_add_fd(dest_ev_ctx,
>+				tp,
>+				tp->read_fd,
>+				TEVENT_FD_READ,
>+				pipe_read_handler,
>+				tp);
>+	if (tp->pipe_read_fde == NULL) {
>+		goto fail;
>+	}
>+
>+	/*
>+	 * Create an immediate event to free
>+	 * completed lists.
>+	 */
>+	tp->free_im = tevent_create_immediate(tp);
>+	if (tp->free_im == NULL) {
>+		goto fail;
>+	}
>+
>+	return tp;
>+
>+  fail:
>+
>+	TALLOC_FREE(tp);
>+	return NULL;
>+}
>+
>+/*
>+ * This function schedules an immediate event to be called with argument
>+ * *pp_private in the thread context of dest_ev_ctx. Caller doesn't
>+ * wait for activation to take place, this is simply fire-and-forget.
>+ *
>+ * pp_im must be a pointer to an immediate event talloced on
>+ * a context owned by the calling thread, or the NULL context.
>+ * Ownership of *pp_im will be transfered to the tevent library.
>+ *
>+ * pp_private can be null, or contents of *pp_private must be
>+ * talloc'ed memory on a context owned by the calling thread
>+ * or the NULL context. If non-null, ownership of *pp_private will
>+ * be transfered to the tevent library.
>+ *
>+ * If you want to return a message, have the destination use the
>+ * same function call to send back to the caller.
>+ */
>+
>+
>+void tevent_thread_proxy_schedule(struct tevent_thread_proxy *tp,
>+				  struct tevent_immediate **pp_im,
>+				  tevent_immediate_handler_t handler,
>+				  void *pp_private_data)
>+{
>+	struct tevent_immediate_list *im_entry;
>+	int ret;
>+	char c;
>+
>+	ret = pthread_mutex_lock(&tp->mutex);
>+	if (ret != 0) {
>+		abort();
>+		/* Notreached. */
>+		return;
>+	}
>+
>+	if (tp->write_fd == -1) {
>+		/* In the process of being destroyed. Ignore. */
>+		goto end;
>+	}
>+
>+	/* Create a new immediate_list entry. MUST BE ON THE NULL CONTEXT */
>+	im_entry = talloc_zero(NULL, struct tevent_immediate_list);
>+	if (im_entry == NULL) {
>+		goto end;
>+	}
>+
>+	im_entry->handler = handler;
>+	im_entry->im = talloc_move(im_entry, pp_im);
>+
>+	if (pp_private_data != NULL) {
>+		void **pptr = (void **)pp_private_data;
>+		im_entry->private_ptr = talloc_move(im_entry, pptr);
>+	}
>+
>+	DLIST_ADD(tp->im_list, im_entry);
>+
>+	/* And notify the dest_ev_ctx to wake up. */
>+	c = '\0';
>+	(void)write(tp->write_fd, &c, 1);
>+
>+  end:
>+
>+	ret = pthread_mutex_unlock(&tp->mutex);
>+	if (ret != 0) {
>+		abort();
>+		/* Notreached. */
>+	}
>+}
>+#else
>+/* !HAVE_PTHREAD */
>+struct tevent_thread_proxy *tevent_thread_proxy_create(
>+		struct tevent_context *dest_ev_ctx)
>+{
>+	errno = ENOSYS;
>+	return NULL;
>+}
>+
>+void tevent_thread_proxy_schedule(struct tevent_thread_proxy *tp,
>+				  struct tevent_immediate **pp_im,
>+				  tevent_immediate_handler_t handler,
>+				  void *pp_private_data)
>+{
>+	;
>+}
>+#endif
>diff --git a/lib/tevent/wscript b/lib/tevent/wscript
>index 9abbd9b..b172d20 100755
>--- a/lib/tevent/wscript
>+++ b/lib/tevent/wscript
>@@ -83,7 +83,7 @@ def build(bld):
> 
>     SRC = '''tevent.c tevent_debug.c tevent_fd.c tevent_immediate.c
>              tevent_queue.c tevent_req.c tevent_select.c
>-             tevent_poll.c
>+             tevent_poll.c tevent_threads.c
>              tevent_signal.c tevent_standard.c tevent_timed.c tevent_util.c tevent_wakeup.c'''
> 
>     if bld.CONFIG_SET('HAVE_EPOLL'):
>-- 
>2.5.0
>
>
>From 275c9f802971c73b4fb25c8b26ef26662ff65a03 Mon Sep 17 00:00:00 2001
>From: Jeremy Allison <jra@samba.org>
>Date: Fri, 24 Jul 2015 08:50:31 -0700
>Subject: [PATCH 02/13] lib: tevent: Initial test of tevent threaded context
> code.
>
>Bug: https://bugzilla.samba.org/show_bug.cgi?id=11771
>
>Signed-off-by: Jeremy Allison <jra@samba.org>
>Signed-off-by: Ralph Boehme <slow@samba.org>
>(cherry picked from commit 187aebb25b970a3679a72109def8e8b85622722e)
>---
> lib/tevent/testsuite.c | 125 +++++++++++++++++++++++++++++++++++++++++++++++++
> 1 file changed, 125 insertions(+)
>
>diff --git a/lib/tevent/testsuite.c b/lib/tevent/testsuite.c
>index c63c878..f8f65f8 100644
>--- a/lib/tevent/testsuite.c
>+++ b/lib/tevent/testsuite.c
>@@ -808,6 +808,127 @@ static bool test_event_context_threaded(struct torture_context *test,
> 	return true;
> }
> 
>+#define NUM_TEVENT_THREADS 100
>+
>+/* Ugly, but needed for torture_comment... */
>+static struct torture_context *thread_test_ctx;
>+static pthread_t thread_map[NUM_TEVENT_THREADS];
>+static unsigned thread_counter;
>+
>+/* Called in master thread context */
>+static void callback_nowait(struct tevent_context *ev,
>+				struct tevent_immediate *im,
>+				void *private_ptr)
>+{
>+	pthread_t *thread_id_ptr =
>+		talloc_get_type_abort(private_ptr, pthread_t);
>+	unsigned i;
>+
>+	for (i = 0; i < NUM_TEVENT_THREADS; i++) {
>+		if (pthread_equal(*thread_id_ptr,
>+				thread_map[i])) {
>+			break;
>+		}
>+	}
>+	torture_comment(thread_test_ctx,
>+			"Callback %u from thread %u\n",
>+			thread_counter,
>+			i);
>+	thread_counter++;
>+}
>+
>+/* Blast the master tevent_context with a callback, no waiting. */
>+static void *thread_fn_nowait(void *private_ptr)
>+{
>+	struct tevent_thread_proxy *master_tp =
>+		talloc_get_type_abort(private_ptr, struct tevent_thread_proxy);
>+	struct tevent_immediate *im;
>+	pthread_t *thread_id_ptr;
>+
>+	im = tevent_create_immediate(NULL);
>+	if (im == NULL) {
>+		return NULL;
>+	}
>+	thread_id_ptr = talloc(NULL, pthread_t);
>+	if (thread_id_ptr == NULL) {
>+		return NULL;
>+	}
>+	*thread_id_ptr = pthread_self();
>+
>+	tevent_thread_proxy_schedule(master_tp,
>+				&im,
>+				callback_nowait,
>+				&thread_id_ptr);
>+	return NULL;
>+}
>+
>+static void timeout_fn(struct tevent_context *ev,
>+			struct tevent_timer *te,
>+			struct timeval tv, void *p)
>+{
>+	thread_counter = NUM_TEVENT_THREADS * 10;
>+}
>+
>+static bool test_multi_tevent_threaded(struct torture_context *test,
>+					const void *test_data)
>+{
>+	unsigned i;
>+	struct tevent_context *master_ev;
>+	struct tevent_thread_proxy *tp;
>+
>+	talloc_disable_null_tracking();
>+
>+	/* Ugly global stuff. */
>+	thread_test_ctx = test;
>+	thread_counter = 0;
>+
>+	master_ev = tevent_context_init(NULL);
>+	if (master_ev == NULL) {
>+		return false;
>+	}
>+	tevent_set_debug_stderr(master_ev);
>+
>+	tp = tevent_thread_proxy_create(master_ev);
>+	if (tp == NULL) {
>+		torture_fail(test,
>+			talloc_asprintf(test,
>+				"tevent_thread_proxy_create failed\n"));
>+		talloc_free(master_ev);
>+		return false;
>+	}
>+
>+	for (i = 0; i < NUM_TEVENT_THREADS; i++) {
>+		int ret = pthread_create(&thread_map[i],
>+				NULL,
>+				thread_fn_nowait,
>+				tp);
>+		if (ret != 0) {
>+			torture_fail(test,
>+				talloc_asprintf(test,
>+					"Failed to create thread %i, %d\n",
>+					i, ret));
>+			return false;
>+		}
>+	}
>+
>+	/* Ensure we don't wait more than 10 seconds. */
>+	tevent_add_timer(master_ev,
>+			master_ev,
>+			timeval_current_ofs(10,0),
>+			timeout_fn,
>+			NULL);
>+
>+	while (thread_counter < NUM_TEVENT_THREADS) {
>+		int ret = tevent_loop_once(master_ev);
>+		torture_assert(test, ret == 0, "tevent_loop_once failed");
>+	}
>+
>+	torture_assert(test, thread_counter == NUM_TEVENT_THREADS,
>+		"thread_counter fail\n");
>+
>+	talloc_free(master_ev);
>+	return true;
>+}
> #endif
> 
> struct torture_suite *torture_local_event(TALLOC_CTX *mem_ctx)
>@@ -841,6 +962,10 @@ struct torture_suite *torture_local_event(TALLOC_CTX *mem_ctx)
> 	torture_suite_add_simple_tcase_const(suite, "threaded_poll_mt",
> 					     test_event_context_threaded,
> 					     NULL);
>+
>+	torture_suite_add_simple_tcase_const(suite, "multi_tevent_threaded",
>+					     test_multi_tevent_threaded,
>+					     NULL);
> #endif
> 
> 	return suite;
>-- 
>2.5.0
>
>
>From 53dacd548e6f33beb1d8e3ea3c332021e6c437fa Mon Sep 17 00:00:00 2001
>From: Jeremy Allison <jra@samba.org>
>Date: Fri, 24 Jul 2015 09:27:21 -0700
>Subject: [PATCH 03/13] lib: tevent: tests: Add a second thread test that does
> request/reply.
>
>Both tests run cleanly with valgrind --tool=drd and
>valgrind --tool=helgrind
>
>Bug: https://bugzilla.samba.org/show_bug.cgi?id=11771
>
>Signed-off-by: Jeremy Allison <jra@samba.org>
>Signed-off-by: Ralph Boehme <slow@samba.org>
>(cherry picked from commit a132320b4c434ae9c2188377951d092f7309e63c)
>---
> lib/tevent/testsuite.c | 205 +++++++++++++++++++++++++++++++++++++++++++++++++
> 1 file changed, 205 insertions(+)
>
>diff --git a/lib/tevent/testsuite.c b/lib/tevent/testsuite.c
>index f8f65f8..bcd27fd 100644
>--- a/lib/tevent/testsuite.c
>+++ b/lib/tevent/testsuite.c
>@@ -929,6 +929,206 @@ static bool test_multi_tevent_threaded(struct torture_context *test,
> 	talloc_free(master_ev);
> 	return true;
> }
>+
>+struct reply_state {
>+	struct tevent_thread_proxy *reply_tp;
>+	pthread_t thread_id;
>+	int *p_finished;
>+};
>+
>+static void thread_timeout_fn(struct tevent_context *ev,
>+			struct tevent_timer *te,
>+			struct timeval tv, void *p)
>+{
>+	int *p_finished = (int *)p;
>+
>+	*p_finished = 2;
>+}
>+
>+/* Called in child-thread context */
>+static void thread_callback(struct tevent_context *ev,
>+				struct tevent_immediate *im,
>+				void *private_ptr)
>+{
>+	struct reply_state *rsp =
>+		talloc_get_type_abort(private_ptr, struct reply_state);
>+
>+	talloc_steal(ev, rsp);
>+	*rsp->p_finished = 1;
>+}
>+
>+/* Called in master thread context */
>+static void master_callback(struct tevent_context *ev,
>+				struct tevent_immediate *im,
>+				void *private_ptr)
>+{
>+	struct reply_state *rsp =
>+		talloc_get_type_abort(private_ptr, struct reply_state);
>+	unsigned i;
>+
>+	talloc_steal(ev, rsp);
>+
>+	for (i = 0; i < NUM_TEVENT_THREADS; i++) {
>+		if (pthread_equal(rsp->thread_id,
>+				thread_map[i])) {
>+			break;
>+		}
>+	}
>+	torture_comment(thread_test_ctx,
>+			"Callback %u from thread %u\n",
>+			thread_counter,
>+			i);
>+	/* Now reply to the thread ! */
>+	tevent_thread_proxy_schedule(rsp->reply_tp,
>+				&im,
>+				thread_callback,
>+				&rsp);
>+
>+	thread_counter++;
>+}
>+
>+static void *thread_fn_1(void *private_ptr)
>+{
>+	struct tevent_thread_proxy *master_tp =
>+		talloc_get_type_abort(private_ptr, struct tevent_thread_proxy);
>+	struct tevent_thread_proxy *tp;
>+	struct tevent_immediate *im;
>+	struct tevent_context *ev;
>+	struct reply_state *rsp;
>+	int finished = 0;
>+	int ret;
>+
>+	ev = tevent_context_init(NULL);
>+	if (ev == NULL) {
>+		return NULL;
>+	}
>+
>+	tp = tevent_thread_proxy_create(ev);
>+	if (tp == NULL) {
>+		talloc_free(ev);
>+		return NULL;
>+	}
>+
>+	im = tevent_create_immediate(ev);
>+	if (im == NULL) {
>+		talloc_free(ev);
>+		return NULL;
>+	}
>+
>+	rsp = talloc(ev, struct reply_state);
>+	if (rsp == NULL) {
>+		talloc_free(ev);
>+		return NULL;
>+	}
>+
>+	rsp->thread_id = pthread_self();
>+	rsp->reply_tp = tp;
>+	rsp->p_finished = &finished;
>+
>+	/* Introduce a little randomness into the mix.. */
>+	usleep(random() % 7000);
>+
>+	tevent_thread_proxy_schedule(master_tp,
>+				&im,
>+				master_callback,
>+				&rsp);
>+
>+	/* Ensure we don't wait more than 10 seconds. */
>+	tevent_add_timer(ev,
>+			ev,
>+			timeval_current_ofs(10,0),
>+			thread_timeout_fn,
>+			&finished);
>+
>+	while (finished == 0) {
>+		ret = tevent_loop_once(ev);
>+		assert(ret == 0);
>+	}
>+
>+	if (finished > 1) {
>+		/* Timeout ! */
>+		abort();
>+	}
>+
>+	/*
>+	 * NB. We should talloc_free(ev) here, but if we do
>+	 * we currently get hit by helgrind Fix #323432
>+	 * "When calling pthread_cond_destroy or pthread_mutex_destroy
>+	 * with initializers as argument Helgrind (incorrectly) reports errors."
>+	 *
>+	 * http://valgrind.10908.n7.nabble.com/Helgrind-3-9-0-false-positive-
>+	 * with-pthread-mutex-destroy-td47757.html
>+	 *
>+	 * Helgrind doesn't understand that the request/reply
>+	 * messages provide synchronization between the lock/unlock
>+	 * in tevent_thread_proxy_schedule(), and the pthread_destroy()
>+	 * when the struct tevent_thread_proxy object is talloc_free'd.
>+	 *
>+	 * As a work-around for now return ev for the parent thread to free.
>+	 */
>+	return ev;
>+}
>+
>+static bool test_multi_tevent_threaded_1(struct torture_context *test,
>+					const void *test_data)
>+{
>+	unsigned i;
>+	struct tevent_context *master_ev;
>+	struct tevent_thread_proxy *master_tp;
>+	int ret;
>+
>+	talloc_disable_null_tracking();
>+
>+	/* Ugly global stuff. */
>+	thread_test_ctx = test;
>+	thread_counter = 0;
>+
>+	master_ev = tevent_context_init(NULL);
>+	if (master_ev == NULL) {
>+		return false;
>+	}
>+	tevent_set_debug_stderr(master_ev);
>+
>+	master_tp = tevent_thread_proxy_create(master_ev);
>+	if (master_tp == NULL) {
>+		torture_fail(test,
>+			talloc_asprintf(test,
>+				"tevent_thread_proxy_create failed\n"));
>+		talloc_free(master_ev);
>+		return false;
>+	}
>+
>+	for (i = 0; i < NUM_TEVENT_THREADS; i++) {
>+		ret = pthread_create(&thread_map[i],
>+				NULL,
>+				thread_fn_1,
>+				master_tp);
>+		if (ret != 0) {
>+			torture_fail(test,
>+				talloc_asprintf(test,
>+					"Failed to create thread %i, %d\n",
>+					i, ret));
>+				return false;
>+		}
>+	}
>+
>+	while (thread_counter < NUM_TEVENT_THREADS) {
>+		ret = tevent_loop_once(master_ev);
>+		torture_assert(test, ret == 0, "tevent_loop_once failed");
>+	}
>+
>+	/* Wait for all the threads to finish - join 'em. */
>+	for (i = 0; i < NUM_TEVENT_THREADS; i++) {
>+		void *retval;
>+		ret = pthread_join(thread_map[i], &retval);
>+		torture_assert(test, ret == 0, "pthread_join failed");
>+		/* Free the child thread event context. */
>+		talloc_free(retval);
>+	}
>+
>+	talloc_free(master_ev);
>+	return true;
>+}
> #endif
> 
> struct torture_suite *torture_local_event(TALLOC_CTX *mem_ctx)
>@@ -966,6 +1166,11 @@ struct torture_suite *torture_local_event(TALLOC_CTX *mem_ctx)
> 	torture_suite_add_simple_tcase_const(suite, "multi_tevent_threaded",
> 					     test_multi_tevent_threaded,
> 					     NULL);
>+
>+	torture_suite_add_simple_tcase_const(suite, "multi_tevent_threaded_1",
>+					     test_multi_tevent_threaded_1,
>+					     NULL);
>+
> #endif
> 
> 	return suite;
>-- 
>2.5.0
>
>
>From dd316726ad7536f75bcf361af0731d3f05d345dc Mon Sep 17 00:00:00 2001
>From: Jeremy Allison <jra@samba.org>
>Date: Wed, 22 Jul 2015 11:52:06 -0700
>Subject: [PATCH 04/13] lib: tevent: docs: Add tutorial on thread usage.
>
>Bug: https://bugzilla.samba.org/show_bug.cgi?id=11771
>
>Signed-off-by: Jeremy Allison <jra@samba.org>
>Signed-off-by: Ralph Boehme <slow@samba.org>
>(cherry picked from commit 68077c617b0a456baea56349fbf502307318c487)
>---
> lib/tevent/doc/tevent_thread.dox   | 322 +++++++++++++++++++++++++++++++++++++
> lib/tevent/doc/tevent_tutorial.dox |   2 +
> 2 files changed, 324 insertions(+)
> create mode 100644 lib/tevent/doc/tevent_thread.dox
>
>diff --git a/lib/tevent/doc/tevent_thread.dox b/lib/tevent/doc/tevent_thread.dox
>new file mode 100644
>index 0000000..7b45820
>--- /dev/null
>+++ b/lib/tevent/doc/tevent_thread.dox
>@@ -0,0 +1,322 @@
>+/**
>+@page tevent_context Chapter 6: Tevent with threads
>+
>+@section context Tevent with threads
>+
>+In order to use tevent with threads, you must first understand
>+how to use the talloc library in threaded programs. For more
>+information about working with talloc, please visit <a
>+href="https://talloc.samba.org/">talloc website</a> where tutorial and
>+documentation are located.
>+
>+If a tevent context structure is talloced from a NULL, thread-safe talloc
>+context, then it can be safe to use in a threaded program. The function
>+<code>talloc_disable_null_tracking()</code> <b>must</b> be called from the initial
>+program thread before any talloc calls are made to ensure talloc is thread-safe.
>+
>+Each thread must create it's own tevent context structure as follows
>+<code>tevent_context_init(NULL)</code> and no talloc memory contexts
>+can be shared between threads.
>+
>+Separate threads using tevent in this way can communicate
>+by writing data into file descriptors that are being monitored
>+by a tevent context on another thread. For example (simplified
>+with no error handling):
>+
>+@code
>+Main thread:
>+
>+main()
>+{
>+	talloc_disable_null_tracking();
>+
>+	struct tevent_context *master_ev = tevent_context_init(NULL);
>+	void *mem_ctx = talloc_new(master_ev);
>+
>+	// Create file descriptor to monitor.
>+	int pipefds[2];
>+
>+	pipe(pipefds);
>+
>+	struct tevent_fd *fde = tevent_add_fd(master_ev,
>+				mem_ctx,
>+				pipefds[0], // read side of pipe
>+				TEVENT_FD_READ,
>+				pipe_read_handler, // callback function
>+				private_data_pointer);
>+
>+	// Create sub thread, pass pipefds[1] write side of pipe to it.
>+	// The above code not shown here..
>+
>+	// Process events.
>+	tevent_loop_wait(master_ev);
>+
>+	// Cleanup if loop exits.
>+	talloc_free(master_ev);
>+}
>+
>+@endcode
>+
>+When the subthread writes to pipefds[1], the function
>+<code>pipe_read_handler()</code> will be called in the main thread.
>+
>+@subsection More sophisticated use
>+
>+A popular way to use an event library within threaded programs
>+is to allow a sub-thread to asynchronously schedule a tevent_immediate
>+function call from the event loop of another thread. This can be built
>+out of the basic functions and isolation mechanisms of tevent,
>+but tevent also comes with some utility functions that make
>+this easier, so long as you understand the limitations that
>+using threads with talloc and tevent impose.
>+
>+To allow a tevent context to receive an asynchronous tevent_immediate
>+function callback from another thread, create a struct tevent_thread_proxy *
>+by calling @code
>+
>+struct tevent_thread_proxy *tevent_thread_proxy_create(
>+                struct tevent_context *dest_ev_ctx);
>+
>+@endcode
>+
>+This function allocates the internal data structures to
>+allow asynchronous callbacks as a talloc child of the
>+struct tevent_context *, and returns a struct tevent_thread_proxy *
>+that can be passed to another thread.
>+
>+When you have finished receiving asynchronous callbacks, simply
>+talloc_free the struct tevent_thread_proxy *, or talloc_free
>+the struct tevent_context *, which will deallocate the resources
>+used.
>+
>+To schedule an asynchronous tevent_immediate function call from one
>+thread on the tevent loop of another thread, use
>+@code
>+
>+void tevent_thread_proxy_schedule(struct tevent_thread_proxy *tp,
>+                                struct tevent_immediate **pp_im,
>+                                tevent_immediate_handler_t handler,
>+                                void **pp_private_data);
>+
>+@endcode
>+
>+This function causes the function <code>handler()</code>
>+to be invoked as a tevent_immediate callback from the event loop
>+of the thread that created the struct tevent_thread_proxy *
>+(so the owning <code>struct tevent_context *</code> should be
>+long-lived and not in the process of being torn down).
>+
>+The <code>struct tevent_thread_proxy</code> object being
>+used here is a child of the event context of the target
>+thread. So external synchronization mechanisms must be
>+used to ensure that the target object is still in use
>+at the time of the <code>tevent_thread_proxy_schedule()</code>
>+call. In the example below, the request/response nature
>+of the communication ensures this.
>+
>+The <code>struct tevent_immediate **pp_im</code> passed into this function
>+should be a struct tevent_immediate * allocated on a talloc context
>+local to this thread, and will be reparented via talloc_move
>+to be owned by <code>struct tevent_thread_proxy *tp</code>.
>+<code>*pp_im</code> will be set to NULL on successful scheduling
>+of the tevent_immediate call.
>+
>+<code>handler()</code> will be called as a normal tevent_immediate
>+callback from the <code>struct tevent_context *</code> of the destination
>+event loop that created the <code>struct tevent_thread_proxy *</code>
>+
>+Returning from this functions does not mean that the <code>handler</code>
>+has been invoked, merely that it has been scheduled to be called in the
>+destination event loop.
>+
>+Because the calling thread does not wait for the
>+callback to be scheduled and run on the destination
>+thread, this is a fire-and-forget call. If you wish
>+confirmation of the <code>handler()</code> being
>+successfully invoked, you must ensure it replies to the
>+caller in some way.
>+
>+Because of asynchronous nature of this call, the nature
>+of the parameter passed to the destination thread has some
>+restructions. If you don't need parameters, merely pass
>+<code>NULL</code> as the value of
>+<code>void **pp_private_data</code>.
>+
>+If you wish to pass a pointer to data between the threads,
>+it <b>MUST</b> be a pointer to a talloced pointer, which is
>+not part of a talloc-pool, and it must not have a destructor
>+attached. The ownership of the memory pointed to will
>+be passed from the calling thread to the tevent library,
>+and if the receiving thread does not talloc-reparent
>+it to its own contexts, it will be freed once the
>+<code>handler</code> is called.
>+
>+On success, <code>*pp_private</code> will be <code>NULL</code>
>+to signify the talloc memory ownership has been moved.
>+
>+In practice for message passing between threads in
>+event loops these restrictions are not very onerous.
>+
>+The easiest way to to a request-reply pair between
>+tevent loops on different threads is to pass the
>+parameter block of memory back and forth using
>+a reply <code>tevent_thread_proxy_schedule()</code>
>+call.
>+
>+Here is an example (without error checking for
>+simplicity):
>+
>+@code
>+------------------------------------------------
>+// Master thread.
>+
>+main()
>+{
>+	// Make talloc thread-safe.
>+
>+	talloc_disable_null_tracking();
>+
>+	// Create the master event context.
>+
>+	struct tevent_context *master_ev = tevent_context_init(NULL);
>+
>+	// Create the master thread proxy to allow it to receive
>+	// async callbacks from other threads.
>+
>+	struct tevent_thread_proxy *master_tp =
>+			tevent_thread_proxy_create(master_ev);
>+
>+	// Create sub-threads, passing master_tp in
>+	// some way to them.
>+	// This code not shown..
>+
>+	// Process events.
>+	// Function master_callback() below
>+	// will be invoked on this thread on
>+	// master_ev event context.
>+
>+	tevent_loop_wait(master_ev);
>+
>+	// Cleanup if loop exits.
>+
>+	talloc_free(master_ev);
>+}
>+
>+// Data passed between threads.
>+struct reply_state {
>+	struct tevent_thread_proxy *reply_tp;
>+	pthread_t thread_id;
>+	bool *p_finished;
>+};
>+
>+// Callback Called in child thread context.
>+
>+static void thread_callback(struct tevent_context *ev,
>+                                struct tevent_immediate *im,
>+                                void *private_ptr)
>+{
>+	// Move the ownership of what private_ptr
>+	// points to from the tevent library back to this thread.
>+
>+	struct reply_state *rsp =
>+		talloc_get_type_abort(private_ptr, struct reply_state);
>+
>+	talloc_steal(ev, rsp);
>+
>+	*rsp->p_finished = true;
>+
>+	// im will be talloc_freed on return from this call.
>+	// but rsp will not.
>+}
>+
>+// Callback Called in master thread context.
>+
>+static void master_callback(struct tevent_context *ev,
>+                                struct tevent_immediate *im,
>+                                void *private_ptr)
>+{
>+	// Move the ownership of what private_ptr
>+	// points to from the tevent library to this thread.
>+
>+	struct reply_state *rsp =
>+		talloc_get_type_abort(private_ptr, struct reply_state);
>+
>+	talloc_steal(ev, rsp);
>+
>+	printf("Callback from thread %s\n", thread_id_to_string(rsp->thread_id));
>+
>+	/* Now reply to the thread ! */
>+	tevent_thread_proxy_schedule(rsp->reply_tp,
>+				&im,
>+				thread_callback,
>+				&rsp);
>+
>+	// Note - rsp and im are now NULL as the tevent library
>+	// owns the memory.
>+}
>+
>+// Child thread.
>+
>+static void *thread_fn(void *private_ptr)
>+{
>+	struct tevent_thread_proxy *master_tp =
>+		talloc_get_type_abort(private_ptr, struct tevent_thread_proxy);
>+	bool finished = false;
>+	int ret;
>+
>+	// Create our own event context.
>+
>+	struct tevent_context *ev = tevent_context_init(NULL);
>+
>+	// Create the local thread proxy to allow us to receive
>+	// async callbacks from other threads.
>+
>+	struct tevent_thread_proxy *local_tp =
>+			tevent_thread_proxy_create(master_ev);
>+
>+	// Setup the data to send.
>+
>+	struct reply_state *rsp = talloc(ev, struct reply_state);
>+
>+	rsp->reply_tp = local_tp;
>+	rsp->thread_id = pthread_self();
>+	rsp->p_finished = &finished;
>+
>+	// Create the immediate event to use.
>+
>+	struct tevent_immediate *im = tevent_create_immediate(ev);
>+
>+	// Call the master thread.
>+
>+	tevent_thread_proxy_schedule(master_tp,
>+				&im,
>+				master_callback,
>+				&rsp);
>+
>+	// Note - rsp and im are now NULL as the tevent library
>+	// owns the memory.
>+
>+	// Wait for the reply.
>+
>+	while (!finished) {
>+		tevent_loop_once(ev);
>+	}
>+
>+	// Cleanup.
>+
>+	talloc_free(ev);
>+	return NULL;
>+}
>+
>+@endcode
>+
>+Note this doesn't have to be a master-subthread communication.
>+Any thread that has access to the <code>struct tevent_thread_proxy *</code>
>+pointer of another thread that has called <code>tevent_thread_proxy_create()
>+</code> can send an async tevent_immediate request.
>+
>+But remember the caveat that external synchronization must be used
>+to ensure the target <code>struct tevent_thread_proxy *</code> object
>+exists at the time of the <code>tevent_thread_proxy_schedule()</code>
>+call or unreproducible crashes will result.
>+*/
>diff --git a/lib/tevent/doc/tevent_tutorial.dox b/lib/tevent/doc/tevent_tutorial.dox
>index 9f01fa1..207a244 100644
>--- a/lib/tevent/doc/tevent_tutorial.dox
>+++ b/lib/tevent/doc/tevent_tutorial.dox
>@@ -17,4 +17,6 @@ Tutorial describing working with tevent library.
> 
> @subpage tevent_queue
> 
>+@subpage tevent_thread
>+
> */
>-- 
>2.5.0
>
>
>From 07f503435687a4a98b6c81d0a04e8ea63af9a6a2 Mon Sep 17 00:00:00 2001
>From: Stefan Metzmacher <metze@samba.org>
>Date: Mon, 24 Aug 2015 15:47:51 +0200
>Subject: [PATCH 05/13] tevent: version 0.9.26
>
>* New tevent_thread_proxy API
>* Minor build fixes
>
>Bug: https://bugzilla.samba.org/show_bug.cgi?id=11771
>
>Signed-off-by: Stefan Metzmacher <metze@samba.org>
>(cherry picked from commit 9884a8fa58ffc8ddff0977c069aedda3beb6415f)
>---
> lib/tevent/ABI/tevent-0.9.26.sigs | 90 +++++++++++++++++++++++++++++++++++++++
> lib/tevent/wscript                |  2 +-
> 2 files changed, 91 insertions(+), 1 deletion(-)
> create mode 100644 lib/tevent/ABI/tevent-0.9.26.sigs
>
>diff --git a/lib/tevent/ABI/tevent-0.9.26.sigs b/lib/tevent/ABI/tevent-0.9.26.sigs
>new file mode 100644
>index 0000000..1357751
>--- /dev/null
>+++ b/lib/tevent/ABI/tevent-0.9.26.sigs
>@@ -0,0 +1,90 @@
>+_tevent_add_fd: struct tevent_fd *(struct tevent_context *, TALLOC_CTX *, int, uint16_t, tevent_fd_handler_t, void *, const char *, const char *)
>+_tevent_add_signal: struct tevent_signal *(struct tevent_context *, TALLOC_CTX *, int, int, tevent_signal_handler_t, void *, const char *, const char *)
>+_tevent_add_timer: struct tevent_timer *(struct tevent_context *, TALLOC_CTX *, struct timeval, tevent_timer_handler_t, void *, const char *, const char *)
>+_tevent_create_immediate: struct tevent_immediate *(TALLOC_CTX *, const char *)
>+_tevent_loop_once: int (struct tevent_context *, const char *)
>+_tevent_loop_until: int (struct tevent_context *, bool (*)(void *), void *, const char *)
>+_tevent_loop_wait: int (struct tevent_context *, const char *)
>+_tevent_queue_create: struct tevent_queue *(TALLOC_CTX *, const char *, const char *)
>+_tevent_req_callback_data: void *(struct tevent_req *)
>+_tevent_req_cancel: bool (struct tevent_req *, const char *)
>+_tevent_req_create: struct tevent_req *(TALLOC_CTX *, void *, size_t, const char *, const char *)
>+_tevent_req_data: void *(struct tevent_req *)
>+_tevent_req_done: void (struct tevent_req *, const char *)
>+_tevent_req_error: bool (struct tevent_req *, uint64_t, const char *)
>+_tevent_req_nomem: bool (const void *, struct tevent_req *, const char *)
>+_tevent_req_notify_callback: void (struct tevent_req *, const char *)
>+_tevent_req_oom: void (struct tevent_req *, const char *)
>+_tevent_schedule_immediate: void (struct tevent_immediate *, struct tevent_context *, tevent_immediate_handler_t, void *, const char *, const char *)
>+tevent_backend_list: const char **(TALLOC_CTX *)
>+tevent_cleanup_pending_signal_handlers: void (struct tevent_signal *)
>+tevent_common_add_fd: struct tevent_fd *(struct tevent_context *, TALLOC_CTX *, int, uint16_t, tevent_fd_handler_t, void *, const char *, const char *)
>+tevent_common_add_signal: struct tevent_signal *(struct tevent_context *, TALLOC_CTX *, int, int, tevent_signal_handler_t, void *, const char *, const char *)
>+tevent_common_add_timer: struct tevent_timer *(struct tevent_context *, TALLOC_CTX *, struct timeval, tevent_timer_handler_t, void *, const char *, const char *)
>+tevent_common_add_timer_v2: struct tevent_timer *(struct tevent_context *, TALLOC_CTX *, struct timeval, tevent_timer_handler_t, void *, const char *, const char *)
>+tevent_common_check_signal: int (struct tevent_context *)
>+tevent_common_context_destructor: int (struct tevent_context *)
>+tevent_common_fd_destructor: int (struct tevent_fd *)
>+tevent_common_fd_get_flags: uint16_t (struct tevent_fd *)
>+tevent_common_fd_set_close_fn: void (struct tevent_fd *, tevent_fd_close_fn_t)
>+tevent_common_fd_set_flags: void (struct tevent_fd *, uint16_t)
>+tevent_common_loop_immediate: bool (struct tevent_context *)
>+tevent_common_loop_timer_delay: struct timeval (struct tevent_context *)
>+tevent_common_loop_wait: int (struct tevent_context *, const char *)
>+tevent_common_schedule_immediate: void (struct tevent_immediate *, struct tevent_context *, tevent_immediate_handler_t, void *, const char *, const char *)
>+tevent_context_init: struct tevent_context *(TALLOC_CTX *)
>+tevent_context_init_byname: struct tevent_context *(TALLOC_CTX *, const char *)
>+tevent_context_init_ops: struct tevent_context *(TALLOC_CTX *, const struct tevent_ops *, void *)
>+tevent_debug: void (struct tevent_context *, enum tevent_debug_level, const char *, ...)
>+tevent_fd_get_flags: uint16_t (struct tevent_fd *)
>+tevent_fd_set_auto_close: void (struct tevent_fd *)
>+tevent_fd_set_close_fn: void (struct tevent_fd *, tevent_fd_close_fn_t)
>+tevent_fd_set_flags: void (struct tevent_fd *, uint16_t)
>+tevent_get_trace_callback: void (struct tevent_context *, tevent_trace_callback_t *, void *)
>+tevent_loop_allow_nesting: void (struct tevent_context *)
>+tevent_loop_set_nesting_hook: void (struct tevent_context *, tevent_nesting_hook, void *)
>+tevent_num_signals: size_t (void)
>+tevent_queue_add: bool (struct tevent_queue *, struct tevent_context *, struct tevent_req *, tevent_queue_trigger_fn_t, void *)
>+tevent_queue_add_entry: struct tevent_queue_entry *(struct tevent_queue *, struct tevent_context *, struct tevent_req *, tevent_queue_trigger_fn_t, void *)
>+tevent_queue_add_optimize_empty: struct tevent_queue_entry *(struct tevent_queue *, struct tevent_context *, struct tevent_req *, tevent_queue_trigger_fn_t, void *)
>+tevent_queue_length: size_t (struct tevent_queue *)
>+tevent_queue_running: bool (struct tevent_queue *)
>+tevent_queue_start: void (struct tevent_queue *)
>+tevent_queue_stop: void (struct tevent_queue *)
>+tevent_queue_wait_recv: bool (struct tevent_req *)
>+tevent_queue_wait_send: struct tevent_req *(TALLOC_CTX *, struct tevent_context *, struct tevent_queue *)
>+tevent_re_initialise: int (struct tevent_context *)
>+tevent_register_backend: bool (const char *, const struct tevent_ops *)
>+tevent_req_default_print: char *(struct tevent_req *, TALLOC_CTX *)
>+tevent_req_defer_callback: void (struct tevent_req *, struct tevent_context *)
>+tevent_req_is_error: bool (struct tevent_req *, enum tevent_req_state *, uint64_t *)
>+tevent_req_is_in_progress: bool (struct tevent_req *)
>+tevent_req_poll: bool (struct tevent_req *, struct tevent_context *)
>+tevent_req_post: struct tevent_req *(struct tevent_req *, struct tevent_context *)
>+tevent_req_print: char *(TALLOC_CTX *, struct tevent_req *)
>+tevent_req_received: void (struct tevent_req *)
>+tevent_req_set_callback: void (struct tevent_req *, tevent_req_fn, void *)
>+tevent_req_set_cancel_fn: void (struct tevent_req *, tevent_req_cancel_fn)
>+tevent_req_set_cleanup_fn: void (struct tevent_req *, tevent_req_cleanup_fn)
>+tevent_req_set_endtime: bool (struct tevent_req *, struct tevent_context *, struct timeval)
>+tevent_req_set_print_fn: void (struct tevent_req *, tevent_req_print_fn)
>+tevent_sa_info_queue_count: size_t (void)
>+tevent_set_abort_fn: void (void (*)(const char *))
>+tevent_set_debug: int (struct tevent_context *, void (*)(void *, enum tevent_debug_level, const char *, va_list), void *)
>+tevent_set_debug_stderr: int (struct tevent_context *)
>+tevent_set_default_backend: void (const char *)
>+tevent_set_trace_callback: void (struct tevent_context *, tevent_trace_callback_t, void *)
>+tevent_signal_support: bool (struct tevent_context *)
>+tevent_thread_proxy_create: struct tevent_thread_proxy *(struct tevent_context *)
>+tevent_thread_proxy_schedule: void (struct tevent_thread_proxy *, struct tevent_immediate **, tevent_immediate_handler_t, void *)
>+tevent_timeval_add: struct timeval (const struct timeval *, uint32_t, uint32_t)
>+tevent_timeval_compare: int (const struct timeval *, const struct timeval *)
>+tevent_timeval_current: struct timeval (void)
>+tevent_timeval_current_ofs: struct timeval (uint32_t, uint32_t)
>+tevent_timeval_is_zero: bool (const struct timeval *)
>+tevent_timeval_set: struct timeval (uint32_t, uint32_t)
>+tevent_timeval_until: struct timeval (const struct timeval *, const struct timeval *)
>+tevent_timeval_zero: struct timeval (void)
>+tevent_trace_point_callback: void (struct tevent_context *, enum tevent_trace_point)
>+tevent_wakeup_recv: bool (struct tevent_req *)
>+tevent_wakeup_send: struct tevent_req *(TALLOC_CTX *, struct tevent_context *, struct timeval)
>diff --git a/lib/tevent/wscript b/lib/tevent/wscript
>index b172d20..ed36f2e 100755
>--- a/lib/tevent/wscript
>+++ b/lib/tevent/wscript
>@@ -1,7 +1,7 @@
> #!/usr/bin/env python
> 
> APPNAME = 'tevent'
>-VERSION = '0.9.25'
>+VERSION = '0.9.26'
> 
> blddir = 'bin'
> 
>-- 
>2.5.0
>
>
>From af539494ef7b3c01a855d628b6940ebd13f19455 Mon Sep 17 00:00:00 2001
>From: Jeremy Allison <jra@samba.org>
>Date: Tue, 17 Nov 2015 10:28:50 -0800
>Subject: [PATCH 06/13] lib: tevent: Fix bug in poll backend -
> poll_event_loop_poll()
>
>If the (pfd->revents & POLLNVAL) case is triggered,
>we do DLIST_REMOVE(ev->fd_events, fde); and then
>use fde->next in the loop above.
>
>Save off fde->next for loop interation before
>this so we can't use a deleted ->next value.
>
>Bug: https://bugzilla.samba.org/show_bug.cgi?id=11771
>
>Signed-off-by: Jeremy Allison <jra@samba.org>
>Reviewed-by: Volker Lendecke <vl@samba.org>
>(cherry picked from commit 2be3dd1407eabe3df360ede2eab178848e34733c)
>---
> lib/tevent/tevent_poll.c | 5 ++++-
> 1 file changed, 4 insertions(+), 1 deletion(-)
>
>diff --git a/lib/tevent/tevent_poll.c b/lib/tevent/tevent_poll.c
>index 573ba93..9b1781f 100644
>--- a/lib/tevent/tevent_poll.c
>+++ b/lib/tevent/tevent_poll.c
>@@ -498,6 +498,7 @@ static int poll_event_loop_poll(struct tevent_context *ev,
> 	int timeout = -1;
> 	int poll_errno;
> 	struct tevent_fd *fde = NULL;
>+	struct tevent_fd *next = NULL;
> 	unsigned i;
> 
> 	if (ev->signal_events && tevent_common_check_signal(ev)) {
>@@ -542,11 +543,13 @@ static int poll_event_loop_poll(struct tevent_context *ev,
> 	   which ones and call the handler, being careful to allow
> 	   the handler to remove itself when called */
> 
>-	for (fde = ev->fd_events; fde; fde = fde->next) {
>+	for (fde = ev->fd_events; fde; fde = next) {
> 		uint64_t idx = fde->additional_flags;
> 		struct pollfd *pfd;
> 		uint16_t flags = 0;
> 
>+		next = fde->next;
>+
> 		if (idx == UINT64_MAX) {
> 			continue;
> 		}
>-- 
>2.5.0
>
>
>From 6f01dca32c144c5451f07a02eefb12f9c90dd36f Mon Sep 17 00:00:00 2001
>From: Jeremy Allison <jra@samba.org>
>Date: Tue, 17 Nov 2015 09:13:41 -0800
>Subject: [PATCH 07/13] lib: tevent: Whitespace cleanup.
>
>Bug: https://bugzilla.samba.org/show_bug.cgi?id=11771
>
>Signed-off-by: Jeremy Allison <jra@samba.org>
>Reviewed-by: Volker Lendecke <vl@samba.org>
>
>Autobuild-User(master): Volker Lendecke <vl@samba.org>
>Autobuild-Date(master): Wed Nov 18 15:54:03 CET 2015 on sn-devel-104
>
>(cherry picked from commit 39d0a81ed87c58836335ec10af22b36c9961f91e)
>---
> lib/tevent/tevent_epoll.c | 6 +++---
> 1 file changed, 3 insertions(+), 3 deletions(-)
>
>diff --git a/lib/tevent/tevent_epoll.c b/lib/tevent/tevent_epoll.c
>index 01fcde6..507ea5c 100644
>--- a/lib/tevent/tevent_epoll.c
>+++ b/lib/tevent/tevent_epoll.c
>@@ -216,7 +216,7 @@ static void epoll_update_event(struct epoll_event_context *epoll_ev, struct teve
> 
> /*
>   reopen the epoll handle when our pid changes
>-  see http://junkcode.samba.org/ftp/unpacked/junkcode/epoll_fork.c for an 
>+  see http://junkcode.samba.org/ftp/unpacked/junkcode/epoll_fork.c for an
>   demonstration of why this is needed
>  */
> static void epoll_check_reopen(struct epoll_event_context *epoll_ev)
>@@ -661,7 +661,7 @@ static int epoll_event_loop(struct epoll_event_context *epoll_ev, struct timeval
> 	}
> 
> 	for (i=0;i<ret;i++) {
>-		struct tevent_fd *fde = talloc_get_type(events[i].data.ptr, 
>+		struct tevent_fd *fde = talloc_get_type(events[i].data.ptr,
> 						       struct tevent_fd);
> 		uint16_t flags = 0;
> 		struct tevent_fd *mpx_fde = NULL;
>@@ -888,7 +888,7 @@ static void epoll_event_set_fd_flags(struct tevent_fd *fde, uint16_t flags)
> }
> 
> /*
>-  do a single event loop using the events defined in ev 
>+  do a single event loop using the events defined in ev
> */
> static int epoll_event_loop_once(struct tevent_context *ev, const char *location)
> {
>-- 
>2.5.0
>
>
>From 2ce367cc4537ebee2e61104143de61a9f82e627c Mon Sep 17 00:00:00 2001
>From: =?UTF-8?q?Jelmer=20Vernoo=C4=B3?= <jelmer@jelmer.uk>
>Date: Sat, 9 Jan 2016 20:25:17 +0000
>Subject: [PATCH 08/13] Simplify handling of dependencies on external libraries
> in test_headers.
>MIME-Version: 1.0
>Content-Type: text/plain; charset=UTF-8
>Content-Transfer-Encoding: 8bit
>
>Signed-off-by: Jelmer VernooÄ³ <jelmer@jelmer.uk>
>(cherry picked from commit 3123e2c66a29aaabad7408107bcf4a0e841a93ec)
>---
> testsuite/headers/wscript_build | 13 ++-----------
> 1 file changed, 2 insertions(+), 11 deletions(-)
>
>diff --git a/testsuite/headers/wscript_build b/testsuite/headers/wscript_build
>index f612ad9..c41c384 100644
>--- a/testsuite/headers/wscript_build
>+++ b/testsuite/headers/wscript_build
>@@ -28,22 +28,13 @@ bld.SAMBA_GENERATOR('test_headers.h',
>                     source=public_headers,
>                     target='test_headers.h')
> 
>-cflags=''
>-for lib in ['talloc', 'tevent', 'tdb', 'ldb', 'popt' ]:
>-    ename = 'CPPPATH_%s' % lib.upper()
>-    for p in bld.env[ename]:
>-        cflags += bld.env.CPPPATH_ST % p + ' '
>-
>-if not bld.env.USING_SYSTEM_POPT:
>-    cflags += bld.env.CPPPATH_ST % '../third_party/popt'
>-
> if bld.env.DEVELOPER_MODE:
>     bld.SAMBA_BINARY('test_headers',
>                      source='test_headers.c',
>                      includes="#include/public",
>                      pyembed=True,
>-                     cflags=cflags,
>                      local_include=True,
>                      global_include=False,
>                      use_global_deps=False,
>-                     install=False)
>+                     install=False,
>+                     deps='talloc tdb ldb tevent popt')
>-- 
>2.5.0
>
>
>From 9c2c71efc782b4fbe9bb73eb3628c897cd530587 Mon Sep 17 00:00:00 2001
>From: =?UTF-8?q?Jelmer=20Vernoo=C4=B3?= <jelmer@jelmer.uk>
>Date: Mon, 4 Jan 2016 23:01:26 +0000
>Subject: [PATCH 09/13] tevent: Only set public headers field when installing
> as a public library.
>MIME-Version: 1.0
>Content-Type: text/plain; charset=UTF-8
>Content-Transfer-Encoding: 8bit
>
>Bug: https://bugzilla.samba.org/show_bug.cgi?id=11771
>
>Signed-off-by: Jelmer VernooÄ³ <jelmer@jelmer.uk>
>(cherry picked from commit 2cba4918dbe82fb9d0455c73d35aa551dccc924f)
>---
> lib/tevent/wscript | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
>diff --git a/lib/tevent/wscript b/lib/tevent/wscript
>index ed36f2e..e042e3d 100755
>--- a/lib/tevent/wscript
>+++ b/lib/tevent/wscript
>@@ -107,7 +107,7 @@ def build(bld):
>                           abi_directory='ABI',
>                           abi_match='tevent_* _tevent_*',
>                           vnum=VERSION,
>-                          public_headers='tevent.h',
>+                          public_headers=('' if private_library else 'tevent.h'),
>                           public_headers_install=not private_library,
>                           pc_files='tevent.pc',
>                           private_library=private_library)
>-- 
>2.5.0
>
>
>From aa1e30aeaedcb0249e6e10c5fe99e8fb433d390f Mon Sep 17 00:00:00 2001
>From: Nathan Huff <nhuff@acm.org>
>Date: Fri, 5 Feb 2016 13:35:07 -0700
>Subject: [PATCH 10/13] Fix ETIME handling for Solaris event ports.
>MIME-Version: 1.0
>Content-Type: text/plain; charset=UTF-8
>Content-Transfer-Encoding: 8bit
>
>It is possible for port_getn to return -1 with errno set to ETIME and
>still return events. If those events aren't processed the association is
>lost by samba since the kernel dissacociated them and samba never
>processed them so never reassociated them with the event port. The
>patch checks the nget return value in the case of ETIME and if it is non
>0 it doesn't return and goes through the event processing loop.
>
>Bug: https://bugzilla.samba.org/show_bug.cgi?id=11771
>
>Signed-off-by: Nathan Huff <nhuff@acm.org>
>Reviewed-by: Ralph Boehme <slow@samba.org>
>Reviewed-by: Jeremy Allison <jra@samba.org>
>
>Autobuild-User(master): Ralph BÃ¶hme <slow@samba.org>
>Autobuild-Date(master): Sun Feb  7 11:26:35 CET 2016 on sn-devel-144
>
>(cherry picked from commit 4953b1f73f8ec9387516be1058434d71937e1447)
>---
> lib/tevent/tevent_port.c | 22 ++++++++++++++++++----
> 1 file changed, 18 insertions(+), 4 deletions(-)
>
>diff --git a/lib/tevent/tevent_port.c b/lib/tevent/tevent_port.c
>index 5b487d7..4b524df 100644
>--- a/lib/tevent/tevent_port.c
>+++ b/lib/tevent/tevent_port.c
>@@ -496,10 +496,24 @@ static int port_event_loop(struct port_event_context *port_ev, struct timeval *t
> 		return 0;
> 	}
> 
>-	if (ret == -1 && port_errno == ETIME && tvalp) {
>-		/* we don't care about a possible delay here */
>-		tevent_common_loop_timer_delay(ev);
>-		return 0;
>+	if (ret == -1 && port_errno == ETIME) {
>+		/*
>+		 * If errno is set to ETIME it is possible that we still got an event.
>+		 * In that case we need to go through the processing loop so that we
>+		 * reassociate the received event with the port or the association will
>+		 * be lost so check the value of nget is 0 before returning.
>+		 */
>+		if (nget == 0) {
>+			/* we don't care about a possible delay here */
>+			tevent_common_loop_timer_delay(ev);
>+			return 0;
>+		}
>+		/*
>+		 * Set the return value to 0 since we do not actually have an error and we
>+		 * do have events that need to be processed.  This keeps us from getting
>+		 * caught in the generic error test.
>+		 */
>+		ret = 0;
> 	}
> 
> 	if (ret == -1) {
>-- 
>2.5.0
>
>
>From 691eadee687327ebb276cce531ef0cb11d4b17a4 Mon Sep 17 00:00:00 2001
>From: Stefan Metzmacher <metze@samba.org>
>Date: Mon, 15 Feb 2016 11:40:34 +0100
>Subject: [PATCH 11/13] tevent: version 0.9.27
>
>* Fix bug in poll backend - poll_event_loop_poll()
>  exits the for loop on POLLNVAL instead of
>  continuing to find an event that is ready.
>* Fix ETIME handling for Solaris event ports (bug #11728).
>
>Bug: https://bugzilla.samba.org/show_bug.cgi?id=11771
>
>Signed-off-by: Stefan Metzmacher <metze@samba.org>
>Reviewed-by: Michael Adam <obnox@samba.org>
>
>Autobuild-User(master): Michael Adam <obnox@samba.org>
>Autobuild-Date(master): Tue Feb 16 00:00:51 CET 2016 on sn-devel-144
>
>(cherry picked from commit 2267faddfa9863b205dfad580fbd45182916cb32)
>---
> lib/tevent/ABI/tevent-0.9.27.sigs | 90 +++++++++++++++++++++++++++++++++++++++
> lib/tevent/wscript                |  2 +-
> 2 files changed, 91 insertions(+), 1 deletion(-)
> create mode 100644 lib/tevent/ABI/tevent-0.9.27.sigs
>
>diff --git a/lib/tevent/ABI/tevent-0.9.27.sigs b/lib/tevent/ABI/tevent-0.9.27.sigs
>new file mode 100644
>index 0000000..1357751
>--- /dev/null
>+++ b/lib/tevent/ABI/tevent-0.9.27.sigs
>@@ -0,0 +1,90 @@
>+_tevent_add_fd: struct tevent_fd *(struct tevent_context *, TALLOC_CTX *, int, uint16_t, tevent_fd_handler_t, void *, const char *, const char *)
>+_tevent_add_signal: struct tevent_signal *(struct tevent_context *, TALLOC_CTX *, int, int, tevent_signal_handler_t, void *, const char *, const char *)
>+_tevent_add_timer: struct tevent_timer *(struct tevent_context *, TALLOC_CTX *, struct timeval, tevent_timer_handler_t, void *, const char *, const char *)
>+_tevent_create_immediate: struct tevent_immediate *(TALLOC_CTX *, const char *)
>+_tevent_loop_once: int (struct tevent_context *, const char *)
>+_tevent_loop_until: int (struct tevent_context *, bool (*)(void *), void *, const char *)
>+_tevent_loop_wait: int (struct tevent_context *, const char *)
>+_tevent_queue_create: struct tevent_queue *(TALLOC_CTX *, const char *, const char *)
>+_tevent_req_callback_data: void *(struct tevent_req *)
>+_tevent_req_cancel: bool (struct tevent_req *, const char *)
>+_tevent_req_create: struct tevent_req *(TALLOC_CTX *, void *, size_t, const char *, const char *)
>+_tevent_req_data: void *(struct tevent_req *)
>+_tevent_req_done: void (struct tevent_req *, const char *)
>+_tevent_req_error: bool (struct tevent_req *, uint64_t, const char *)
>+_tevent_req_nomem: bool (const void *, struct tevent_req *, const char *)
>+_tevent_req_notify_callback: void (struct tevent_req *, const char *)
>+_tevent_req_oom: void (struct tevent_req *, const char *)
>+_tevent_schedule_immediate: void (struct tevent_immediate *, struct tevent_context *, tevent_immediate_handler_t, void *, const char *, const char *)
>+tevent_backend_list: const char **(TALLOC_CTX *)
>+tevent_cleanup_pending_signal_handlers: void (struct tevent_signal *)
>+tevent_common_add_fd: struct tevent_fd *(struct tevent_context *, TALLOC_CTX *, int, uint16_t, tevent_fd_handler_t, void *, const char *, const char *)
>+tevent_common_add_signal: struct tevent_signal *(struct tevent_context *, TALLOC_CTX *, int, int, tevent_signal_handler_t, void *, const char *, const char *)
>+tevent_common_add_timer: struct tevent_timer *(struct tevent_context *, TALLOC_CTX *, struct timeval, tevent_timer_handler_t, void *, const char *, const char *)
>+tevent_common_add_timer_v2: struct tevent_timer *(struct tevent_context *, TALLOC_CTX *, struct timeval, tevent_timer_handler_t, void *, const char *, const char *)
>+tevent_common_check_signal: int (struct tevent_context *)
>+tevent_common_context_destructor: int (struct tevent_context *)
>+tevent_common_fd_destructor: int (struct tevent_fd *)
>+tevent_common_fd_get_flags: uint16_t (struct tevent_fd *)
>+tevent_common_fd_set_close_fn: void (struct tevent_fd *, tevent_fd_close_fn_t)
>+tevent_common_fd_set_flags: void (struct tevent_fd *, uint16_t)
>+tevent_common_loop_immediate: bool (struct tevent_context *)
>+tevent_common_loop_timer_delay: struct timeval (struct tevent_context *)
>+tevent_common_loop_wait: int (struct tevent_context *, const char *)
>+tevent_common_schedule_immediate: void (struct tevent_immediate *, struct tevent_context *, tevent_immediate_handler_t, void *, const char *, const char *)
>+tevent_context_init: struct tevent_context *(TALLOC_CTX *)
>+tevent_context_init_byname: struct tevent_context *(TALLOC_CTX *, const char *)
>+tevent_context_init_ops: struct tevent_context *(TALLOC_CTX *, const struct tevent_ops *, void *)
>+tevent_debug: void (struct tevent_context *, enum tevent_debug_level, const char *, ...)
>+tevent_fd_get_flags: uint16_t (struct tevent_fd *)
>+tevent_fd_set_auto_close: void (struct tevent_fd *)
>+tevent_fd_set_close_fn: void (struct tevent_fd *, tevent_fd_close_fn_t)
>+tevent_fd_set_flags: void (struct tevent_fd *, uint16_t)
>+tevent_get_trace_callback: void (struct tevent_context *, tevent_trace_callback_t *, void *)
>+tevent_loop_allow_nesting: void (struct tevent_context *)
>+tevent_loop_set_nesting_hook: void (struct tevent_context *, tevent_nesting_hook, void *)
>+tevent_num_signals: size_t (void)
>+tevent_queue_add: bool (struct tevent_queue *, struct tevent_context *, struct tevent_req *, tevent_queue_trigger_fn_t, void *)
>+tevent_queue_add_entry: struct tevent_queue_entry *(struct tevent_queue *, struct tevent_context *, struct tevent_req *, tevent_queue_trigger_fn_t, void *)
>+tevent_queue_add_optimize_empty: struct tevent_queue_entry *(struct tevent_queue *, struct tevent_context *, struct tevent_req *, tevent_queue_trigger_fn_t, void *)
>+tevent_queue_length: size_t (struct tevent_queue *)
>+tevent_queue_running: bool (struct tevent_queue *)
>+tevent_queue_start: void (struct tevent_queue *)
>+tevent_queue_stop: void (struct tevent_queue *)
>+tevent_queue_wait_recv: bool (struct tevent_req *)
>+tevent_queue_wait_send: struct tevent_req *(TALLOC_CTX *, struct tevent_context *, struct tevent_queue *)
>+tevent_re_initialise: int (struct tevent_context *)
>+tevent_register_backend: bool (const char *, const struct tevent_ops *)
>+tevent_req_default_print: char *(struct tevent_req *, TALLOC_CTX *)
>+tevent_req_defer_callback: void (struct tevent_req *, struct tevent_context *)
>+tevent_req_is_error: bool (struct tevent_req *, enum tevent_req_state *, uint64_t *)
>+tevent_req_is_in_progress: bool (struct tevent_req *)
>+tevent_req_poll: bool (struct tevent_req *, struct tevent_context *)
>+tevent_req_post: struct tevent_req *(struct tevent_req *, struct tevent_context *)
>+tevent_req_print: char *(TALLOC_CTX *, struct tevent_req *)
>+tevent_req_received: void (struct tevent_req *)
>+tevent_req_set_callback: void (struct tevent_req *, tevent_req_fn, void *)
>+tevent_req_set_cancel_fn: void (struct tevent_req *, tevent_req_cancel_fn)
>+tevent_req_set_cleanup_fn: void (struct tevent_req *, tevent_req_cleanup_fn)
>+tevent_req_set_endtime: bool (struct tevent_req *, struct tevent_context *, struct timeval)
>+tevent_req_set_print_fn: void (struct tevent_req *, tevent_req_print_fn)
>+tevent_sa_info_queue_count: size_t (void)
>+tevent_set_abort_fn: void (void (*)(const char *))
>+tevent_set_debug: int (struct tevent_context *, void (*)(void *, enum tevent_debug_level, const char *, va_list), void *)
>+tevent_set_debug_stderr: int (struct tevent_context *)
>+tevent_set_default_backend: void (const char *)
>+tevent_set_trace_callback: void (struct tevent_context *, tevent_trace_callback_t, void *)
>+tevent_signal_support: bool (struct tevent_context *)
>+tevent_thread_proxy_create: struct tevent_thread_proxy *(struct tevent_context *)
>+tevent_thread_proxy_schedule: void (struct tevent_thread_proxy *, struct tevent_immediate **, tevent_immediate_handler_t, void *)
>+tevent_timeval_add: struct timeval (const struct timeval *, uint32_t, uint32_t)
>+tevent_timeval_compare: int (const struct timeval *, const struct timeval *)
>+tevent_timeval_current: struct timeval (void)
>+tevent_timeval_current_ofs: struct timeval (uint32_t, uint32_t)
>+tevent_timeval_is_zero: bool (const struct timeval *)
>+tevent_timeval_set: struct timeval (uint32_t, uint32_t)
>+tevent_timeval_until: struct timeval (const struct timeval *, const struct timeval *)
>+tevent_timeval_zero: struct timeval (void)
>+tevent_trace_point_callback: void (struct tevent_context *, enum tevent_trace_point)
>+tevent_wakeup_recv: bool (struct tevent_req *)
>+tevent_wakeup_send: struct tevent_req *(TALLOC_CTX *, struct tevent_context *, struct timeval)
>diff --git a/lib/tevent/wscript b/lib/tevent/wscript
>index e042e3d..5ca8c39 100755
>--- a/lib/tevent/wscript
>+++ b/lib/tevent/wscript
>@@ -1,7 +1,7 @@
> #!/usr/bin/env python
> 
> APPNAME = 'tevent'
>-VERSION = '0.9.26'
>+VERSION = '0.9.27'
> 
> blddir = 'bin'
> 
>-- 
>2.5.0
>
>
>From 7ad8ab4db225eb744053a4fdad6d32e85c0efdfa Mon Sep 17 00:00:00 2001
>From: Jeremy Allison <jra@samba.org>
>Date: Tue, 16 Feb 2016 14:23:53 -0800
>Subject: [PATCH 12/13] =?UTF-8?q?lib:=20tevent:=20Fix=20memory=20leak=20re?=
> =?UTF-8?q?ported=20by=20Pavel=20B=C5=99ezina=20<pbrezina@redhat.com>=20wh?=
> =?UTF-8?q?en=20old=20signal=20action=20restored.?=
>MIME-Version: 1.0
>Content-Type: text/plain; charset=UTF-8
>Content-Transfer-Encoding: 8bit
>
>BUG: https://bugzilla.samba.org/show_bug.cgi?id=11742
>Bug: https://bugzilla.samba.org/show_bug.cgi?id=11771
>
>Signed-off-by: Jeremy Allison <jra@samba.org>
>Reviewed-by: Andreas Schneider <asn@samba.org>
>
>Autobuild-User(master): Andreas Schneider <asn@cryptomilk.org>
>Autobuild-Date(master): Thu Feb 18 01:42:50 CET 2016 on sn-devel-144
>
>(cherry picked from commit 833a2f474367624dd9980abb28227850e95fe976)
>---
> lib/tevent/tevent_signal.c | 4 ++++
> 1 file changed, 4 insertions(+)
>
>diff --git a/lib/tevent/tevent_signal.c b/lib/tevent/tevent_signal.c
>index 924dc05..9bc11ed 100644
>--- a/lib/tevent/tevent_signal.c
>+++ b/lib/tevent/tevent_signal.c
>@@ -212,6 +212,7 @@ static int tevent_signal_destructor(struct tevent_signal *se)
> 		/* restore old handler, if any */
> 		if (sig_state->oldact[se->signum]) {
> 			sigaction(se->signum, sig_state->oldact[se->signum], NULL);
>+			talloc_free(sig_state->oldact[se->signum]);
> 			sig_state->oldact[se->signum] = NULL;
> 		}
> #ifdef SA_SIGINFO
>@@ -342,6 +343,8 @@ struct tevent_signal *tevent_common_add_signal(struct tevent_context *ev,
> 			return NULL;
> 		}
> 		if (sigaction(signum, &act, sig_state->oldact[signum]) == -1) {
>+			talloc_free(sig_state->oldact[signum]);
>+			sig_state->oldact[signum] = NULL;
> 			talloc_free(se);
> 			return NULL;
> 		}
>@@ -505,6 +508,7 @@ void tevent_cleanup_pending_signal_handlers(struct tevent_signal *se)
> 	if (sig_state->sig_handlers[se->signum] == NULL) {
> 		if (sig_state->oldact[se->signum]) {
> 			sigaction(se->signum, sig_state->oldact[se->signum], NULL);
>+			talloc_free(sig_state->oldact[se->signum]);
> 			sig_state->oldact[se->signum] = NULL;
> 		}
> 	}
>-- 
>2.5.0
>
>
>From 1abd1954ac3d83537d49710cafa69e81e0a3db6d Mon Sep 17 00:00:00 2001
>From: Stefan Metzmacher <metze@samba.org>
>Date: Fri, 19 Feb 2016 11:46:03 +0100
>Subject: [PATCH 13/13] tevent: version 0.9.28
>
>* Fix memory leak when old signal action restored (bug #11742)
>
>Bug: https://bugzilla.samba.org/show_bug.cgi?id=11771
>
>Signed-off-by: Stefan Metzmacher <metze@samba.org>
>Reviewed-by: Andreas Schneider <asn@samba.org>
>
>Autobuild-User(master): Stefan Metzmacher <metze@samba.org>
>Autobuild-Date(master): Fri Feb 19 19:12:25 CET 2016 on sn-devel-144
>
>(cherry picked from commit da74d0c317be9ce67eb5d00d232167d466f68a1e)
>
>The last 12 patches addressed bug #11771:
>Backport tevent-0.9.28.
>---
> lib/tevent/ABI/tevent-0.9.28.sigs | 90 +++++++++++++++++++++++++++++++++++++++
> lib/tevent/wscript                |  2 +-
> 2 files changed, 91 insertions(+), 1 deletion(-)
> create mode 100644 lib/tevent/ABI/tevent-0.9.28.sigs
>
>diff --git a/lib/tevent/ABI/tevent-0.9.28.sigs b/lib/tevent/ABI/tevent-0.9.28.sigs
>new file mode 100644
>index 0000000..1357751
>--- /dev/null
>+++ b/lib/tevent/ABI/tevent-0.9.28.sigs
>@@ -0,0 +1,90 @@
>+_tevent_add_fd: struct tevent_fd *(struct tevent_context *, TALLOC_CTX *, int, uint16_t, tevent_fd_handler_t, void *, const char *, const char *)
>+_tevent_add_signal: struct tevent_signal *(struct tevent_context *, TALLOC_CTX *, int, int, tevent_signal_handler_t, void *, const char *, const char *)
>+_tevent_add_timer: struct tevent_timer *(struct tevent_context *, TALLOC_CTX *, struct timeval, tevent_timer_handler_t, void *, const char *, const char *)
>+_tevent_create_immediate: struct tevent_immediate *(TALLOC_CTX *, const char *)
>+_tevent_loop_once: int (struct tevent_context *, const char *)
>+_tevent_loop_until: int (struct tevent_context *, bool (*)(void *), void *, const char *)
>+_tevent_loop_wait: int (struct tevent_context *, const char *)
>+_tevent_queue_create: struct tevent_queue *(TALLOC_CTX *, const char *, const char *)
>+_tevent_req_callback_data: void *(struct tevent_req *)
>+_tevent_req_cancel: bool (struct tevent_req *, const char *)
>+_tevent_req_create: struct tevent_req *(TALLOC_CTX *, void *, size_t, const char *, const char *)
>+_tevent_req_data: void *(struct tevent_req *)
>+_tevent_req_done: void (struct tevent_req *, const char *)
>+_tevent_req_error: bool (struct tevent_req *, uint64_t, const char *)
>+_tevent_req_nomem: bool (const void *, struct tevent_req *, const char *)
>+_tevent_req_notify_callback: void (struct tevent_req *, const char *)
>+_tevent_req_oom: void (struct tevent_req *, const char *)
>+_tevent_schedule_immediate: void (struct tevent_immediate *, struct tevent_context *, tevent_immediate_handler_t, void *, const char *, const char *)
>+tevent_backend_list: const char **(TALLOC_CTX *)
>+tevent_cleanup_pending_signal_handlers: void (struct tevent_signal *)
>+tevent_common_add_fd: struct tevent_fd *(struct tevent_context *, TALLOC_CTX *, int, uint16_t, tevent_fd_handler_t, void *, const char *, const char *)
>+tevent_common_add_signal: struct tevent_signal *(struct tevent_context *, TALLOC_CTX *, int, int, tevent_signal_handler_t, void *, const char *, const char *)
>+tevent_common_add_timer: struct tevent_timer *(struct tevent_context *, TALLOC_CTX *, struct timeval, tevent_timer_handler_t, void *, const char *, const char *)
>+tevent_common_add_timer_v2: struct tevent_timer *(struct tevent_context *, TALLOC_CTX *, struct timeval, tevent_timer_handler_t, void *, const char *, const char *)
>+tevent_common_check_signal: int (struct tevent_context *)
>+tevent_common_context_destructor: int (struct tevent_context *)
>+tevent_common_fd_destructor: int (struct tevent_fd *)
>+tevent_common_fd_get_flags: uint16_t (struct tevent_fd *)
>+tevent_common_fd_set_close_fn: void (struct tevent_fd *, tevent_fd_close_fn_t)
>+tevent_common_fd_set_flags: void (struct tevent_fd *, uint16_t)
>+tevent_common_loop_immediate: bool (struct tevent_context *)
>+tevent_common_loop_timer_delay: struct timeval (struct tevent_context *)
>+tevent_common_loop_wait: int (struct tevent_context *, const char *)
>+tevent_common_schedule_immediate: void (struct tevent_immediate *, struct tevent_context *, tevent_immediate_handler_t, void *, const char *, const char *)
>+tevent_context_init: struct tevent_context *(TALLOC_CTX *)
>+tevent_context_init_byname: struct tevent_context *(TALLOC_CTX *, const char *)
>+tevent_context_init_ops: struct tevent_context *(TALLOC_CTX *, const struct tevent_ops *, void *)
>+tevent_debug: void (struct tevent_context *, enum tevent_debug_level, const char *, ...)
>+tevent_fd_get_flags: uint16_t (struct tevent_fd *)
>+tevent_fd_set_auto_close: void (struct tevent_fd *)
>+tevent_fd_set_close_fn: void (struct tevent_fd *, tevent_fd_close_fn_t)
>+tevent_fd_set_flags: void (struct tevent_fd *, uint16_t)
>+tevent_get_trace_callback: void (struct tevent_context *, tevent_trace_callback_t *, void *)
>+tevent_loop_allow_nesting: void (struct tevent_context *)
>+tevent_loop_set_nesting_hook: void (struct tevent_context *, tevent_nesting_hook, void *)
>+tevent_num_signals: size_t (void)
>+tevent_queue_add: bool (struct tevent_queue *, struct tevent_context *, struct tevent_req *, tevent_queue_trigger_fn_t, void *)
>+tevent_queue_add_entry: struct tevent_queue_entry *(struct tevent_queue *, struct tevent_context *, struct tevent_req *, tevent_queue_trigger_fn_t, void *)
>+tevent_queue_add_optimize_empty: struct tevent_queue_entry *(struct tevent_queue *, struct tevent_context *, struct tevent_req *, tevent_queue_trigger_fn_t, void *)
>+tevent_queue_length: size_t (struct tevent_queue *)
>+tevent_queue_running: bool (struct tevent_queue *)
>+tevent_queue_start: void (struct tevent_queue *)
>+tevent_queue_stop: void (struct tevent_queue *)
>+tevent_queue_wait_recv: bool (struct tevent_req *)
>+tevent_queue_wait_send: struct tevent_req *(TALLOC_CTX *, struct tevent_context *, struct tevent_queue *)
>+tevent_re_initialise: int (struct tevent_context *)
>+tevent_register_backend: bool (const char *, const struct tevent_ops *)
>+tevent_req_default_print: char *(struct tevent_req *, TALLOC_CTX *)
>+tevent_req_defer_callback: void (struct tevent_req *, struct tevent_context *)
>+tevent_req_is_error: bool (struct tevent_req *, enum tevent_req_state *, uint64_t *)
>+tevent_req_is_in_progress: bool (struct tevent_req *)
>+tevent_req_poll: bool (struct tevent_req *, struct tevent_context *)
>+tevent_req_post: struct tevent_req *(struct tevent_req *, struct tevent_context *)
>+tevent_req_print: char *(TALLOC_CTX *, struct tevent_req *)
>+tevent_req_received: void (struct tevent_req *)
>+tevent_req_set_callback: void (struct tevent_req *, tevent_req_fn, void *)
>+tevent_req_set_cancel_fn: void (struct tevent_req *, tevent_req_cancel_fn)
>+tevent_req_set_cleanup_fn: void (struct tevent_req *, tevent_req_cleanup_fn)
>+tevent_req_set_endtime: bool (struct tevent_req *, struct tevent_context *, struct timeval)
>+tevent_req_set_print_fn: void (struct tevent_req *, tevent_req_print_fn)
>+tevent_sa_info_queue_count: size_t (void)
>+tevent_set_abort_fn: void (void (*)(const char *))
>+tevent_set_debug: int (struct tevent_context *, void (*)(void *, enum tevent_debug_level, const char *, va_list), void *)
>+tevent_set_debug_stderr: int (struct tevent_context *)
>+tevent_set_default_backend: void (const char *)
>+tevent_set_trace_callback: void (struct tevent_context *, tevent_trace_callback_t, void *)
>+tevent_signal_support: bool (struct tevent_context *)
>+tevent_thread_proxy_create: struct tevent_thread_proxy *(struct tevent_context *)
>+tevent_thread_proxy_schedule: void (struct tevent_thread_proxy *, struct tevent_immediate **, tevent_immediate_handler_t, void *)
>+tevent_timeval_add: struct timeval (const struct timeval *, uint32_t, uint32_t)
>+tevent_timeval_compare: int (const struct timeval *, const struct timeval *)
>+tevent_timeval_current: struct timeval (void)
>+tevent_timeval_current_ofs: struct timeval (uint32_t, uint32_t)
>+tevent_timeval_is_zero: bool (const struct timeval *)
>+tevent_timeval_set: struct timeval (uint32_t, uint32_t)
>+tevent_timeval_until: struct timeval (const struct timeval *, const struct timeval *)
>+tevent_timeval_zero: struct timeval (void)
>+tevent_trace_point_callback: void (struct tevent_context *, enum tevent_trace_point)
>+tevent_wakeup_recv: bool (struct tevent_req *)
>+tevent_wakeup_send: struct tevent_req *(TALLOC_CTX *, struct tevent_context *, struct timeval)
>diff --git a/lib/tevent/wscript b/lib/tevent/wscript
>index 5ca8c39..82df064 100755
>--- a/lib/tevent/wscript
>+++ b/lib/tevent/wscript
>@@ -1,7 +1,7 @@
> #!/usr/bin/env python
> 
> APPNAME = 'tevent'
>-VERSION = '0.9.27'
>+VERSION = '0.9.28'
> 
> blddir = 'bin'
> 
>-- 
>2.5.0
>

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