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-rw-r--r--src/or/channel.h37
1 files changed, 36 insertions, 1 deletions
diff --git a/src/or/channel.h b/src/or/channel.h
index 5c2a1a35e2..ecc2a092e4 100644
--- a/src/or/channel.h
+++ b/src/or/channel.h
@@ -1,4 +1,4 @@
-/* * Copyright (c) 2012-2014, The Tor Project, Inc. */
+/* * Copyright (c) 2012-2015, The Tor Project, Inc. */
/* See LICENSE for licensing information */
/**
@@ -380,6 +380,8 @@ struct cell_queue_entry_s {
/* Cell queue functions for benefit of test suite */
STATIC int chan_cell_queue_len(const chan_cell_queue_t *queue);
+
+STATIC void cell_queue_entry_free(cell_queue_entry_t *q, int handed_off);
#endif
/* Channel operations for subclasses and internal use only */
@@ -503,6 +505,39 @@ channel_t * channel_find_by_remote_digest(const char *identity_digest);
channel_t * channel_next_with_digest(channel_t *chan);
/*
+ * Helper macros to lookup state of given channel.
+ */
+
+#define CHANNEL_IS_CLOSED(chan) (channel_is_in_state((chan), \
+ CHANNEL_STATE_CLOSED))
+#define CHANNEL_IS_OPENING(chan) (channel_is_in_state((chan), \
+ CHANNEL_STATE_OPENING))
+#define CHANNEL_IS_OPEN(chan) (channel_is_in_state((chan), \
+ CHANNEL_STATE_OPEN))
+#define CHANNEL_IS_MAINT(chan) (channel_is_in_state((chan), \
+ CHANNEL_STATE_MAINT))
+#define CHANNEL_IS_CLOSING(chan) (channel_is_in_state((chan), \
+ CHANNEL_STATE_CLOSING))
+#define CHANNEL_IS_ERROR(chan) (channel_is_in_state((chan), \
+ CHANNEL_STATE_ERROR))
+
+#define CHANNEL_FINISHED(chan) (CHANNEL_IS_CLOSED(chan) || \
+ CHANNEL_IS_ERROR(chan))
+
+#define CHANNEL_CONDEMNED(chan) (CHANNEL_IS_CLOSING(chan) || \
+ CHANNEL_FINISHED(chan))
+
+#define CHANNEL_CAN_HANDLE_CELLS(chan) (CHANNEL_IS_OPENING(chan) || \
+ CHANNEL_IS_OPEN(chan) || \
+ CHANNEL_IS_MAINT(chan))
+
+static INLINE int
+channel_is_in_state(channel_t *chan, channel_state_t state)
+{
+ return chan->state == state;
+}
+
+/*
* Metadata queries/updates
*/