REORG/MAJOR: session: rename the "session" entity to "stream"
With HTTP/2, we'll have to support multiplexed streams. A stream is in
fact the largest part of what we currently call a session, it has buffers,
logs, etc.
In order to catch any error, this commit removes any reference to the
struct session and tries to rename most "session" occurrences in function
names to "stream" and "sess" to "strm" when that's related to a session.
The files stream.{c,h} were added and session.{c,h} removed.
The session will be reintroduced later and a few parts of the stream
will progressively be moved overthere. It will more or less contain
only what we need in an embryonic session.
Sample fetch functions and converters will have to change a bit so
that they'll use an L5 (session) instead of what's currently called
"L4" which is in fact L6 for now.
Once all changes are completed, we should see approximately this :
L7 - http_txn
L6 - stream
L5 - session
L4 - connection | applet
There will be at most one http_txn per stream, and a same session will
possibly be referenced by multiple streams. A connection will point to
a session and to a stream. The session will hold all the information
we need to keep even when we don't yet have a stream.
Some more cleanup is needed because some code was already far from
being clean. The server queue management still refers to sessions at
many places while comments talk about connections. This will have to
be cleaned up once we have a server-side connection pool manager.
Stream flags "SN_*" still need to be renamed, it doesn't seem like
any of them will need to move to the session.
diff --git a/include/proto/sample.h b/include/proto/sample.h
index 91f4513..e9f9e25 100644
--- a/include/proto/sample.h
+++ b/include/proto/sample.h
@@ -30,10 +30,10 @@
struct sample_expr *sample_parse_expr(char **str, int *idx, const char *file, int line, char **err, struct arg_list *al);
struct sample_conv *find_sample_conv(const char *kw, int len);
-struct sample *sample_process(struct proxy *px, struct session *l4,
+struct sample *sample_process(struct proxy *px, struct stream *l4,
void *l7, unsigned int dir, struct sample_expr *expr,
struct sample *p);
-struct sample *sample_fetch_string(struct proxy *px, struct session *l4, void *l7,
+struct sample *sample_fetch_string(struct proxy *px, struct stream *l4, void *l7,
unsigned int opt, struct sample_expr *expr);
void sample_register_fetches(struct sample_fetch_kw_list *psl);
void sample_register_convs(struct sample_conv_kw_list *psl);