From: Stefan Metzmacher <metze@samba.org>
Date: Mon, 5 Jan 2009 07:50:07 +0000 (+0100)
Subject: feature
X-Git-Url: http://git.samba.org/?p=metze%2Fsamba%2Fwip.git;a=commitdiff_plain;h=e6c324aaec89b6c561e19018b0ccbd5d9c0eea73

feature
---

diff --git a/lib/tevent/tevent.c b/lib/tevent/tevent.c
index 99cd074e655a..2cebe51939ae 100644
--- a/lib/tevent/tevent.c
+++ b/lib/tevent/tevent.c
@@ -409,6 +409,10 @@ struct tevent_context *tevent_context_init_ops(TALLOC_CTX *mem_ctx,
 	ev->ops = ops;
 	ev->additional_data = additional_data;
 
+	/* FD and TIMER events are always supported */
+	ev->features |= TEVENT_FEATURE_FD_SUPPORT;
+	ev->features |= TEVENT_FEATURE_TIMER_SUPPORT;
+
 	ret = ev->ops->context_init(ev);
 	if (ret != 0) {
 		talloc_free(ev);
diff --git a/lib/tevent/tevent.h b/lib/tevent/tevent.h
index 7de04d03896c..e004e42a37bb 100644
--- a/lib/tevent/tevent.h
+++ b/lib/tevent/tevent.h
@@ -29,6 +29,7 @@
 #define __TEVENT_H__
 
 #include <stdint.h>
+#include <stdbool.h>
 #include <talloc.h>
 #include <sys/time.h>
 #include <stdbool.h>
@@ -158,6 +159,13 @@ const char **tevent_backend_list(TALLOC_CTX *mem_ctx);
  */
 void tevent_set_default_backend(const char *backend);
 
+#define TEVENT_FEATURE_FD_SUPPORT	0x00000001
+#define TEVENT_FEATURE_TIMER_SUPPORT	0x00000002
+#define TEVENT_FEATURE_SIGNAL_SUPPORT	0x00000004
+#define TEVENT_FEATURE_AIO_SUPPORT	0x00000008
+
+bool tevent_have_features(struct tevent_context *ev, uint32_t features);
+
 #ifdef DOXYGEN
 /**
  * @brief Add a file descriptor based event.
diff --git a/lib/tevent/tevent_epoll.c b/lib/tevent/tevent_epoll.c
index 4147c67af2a0..0e47a018fd50 100644
--- a/lib/tevent/tevent_epoll.c
+++ b/lib/tevent/tevent_epoll.c
@@ -758,6 +758,7 @@ static int epoll_event_context_init(struct tevent_context *ev)
 		return ret;
 	}
 
+	ev->features |= TEVENT_FEATURE_SIGNAL_SUPPORT;
 	ev->additional_data = epoll_ev;
 	return 0;
 }
diff --git a/lib/tevent/tevent_internal.h b/lib/tevent/tevent_internal.h
index 6f0ecfdbe3f2..8d72ee5869f8 100644
--- a/lib/tevent/tevent_internal.h
+++ b/lib/tevent/tevent_internal.h
@@ -246,6 +246,8 @@ struct tevent_context {
 	/* the specific events implementation */
 	const struct tevent_ops *ops;
 
+	uint32_t features;
+
 	/*
 	 * The following three pointers are queried on every loop_once
 	 * in the order in which they appear here. Not measured, but
diff --git a/lib/tevent/tevent_select.c b/lib/tevent/tevent_select.c
index 55dd0b66f66c..9a1e36dd6176 100644
--- a/lib/tevent/tevent_select.c
+++ b/lib/tevent/tevent_select.c
@@ -54,6 +54,7 @@ static int select_event_context_init(struct tevent_context *ev)
 	if (!select_ev) return -1;
 	select_ev->ev = ev;
 
+	ev->features |= TEVENT_FEATURE_SIGNAL_SUPPORT;
 	ev->additional_data = select_ev;
 	return 0;
 }