From 66df82496e8b5cf0e49e8fe4ddd57827bbd0e3c5 Mon Sep 17 00:00:00 2001
From: =?utf8?q?Jos=C3=A9=20Bollo?= <jose.bollo@iot.bzh>
Date: Thu, 15 Feb 2018 16:51:25 +0100
Subject: [PATCH] afb-session: Verbs for timeout and remining time
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Change-Id: Ia1922187aa78d8633835c4a77e8aa533fa5d5f7d
Signed-off-by: José Bollo <jose.bollo@iot.bzh>
---
 src/afb-session.c | 38 +++++++++++++++++++++++++++-----------
 src/afb-session.h |  2 ++
 2 files changed, 29 insertions(+), 11 deletions(-)

diff --git a/src/afb-session.c b/src/afb-session.c
index c312b46c..c63c6c46 100644
--- a/src/afb-session.c
+++ b/src/afb-session.c
@@ -22,6 +22,7 @@
 #include <pthread.h>
 #include <stdlib.h>
 #include <stdint.h>
+#include <limits.h>
 #include <string.h>
 #include <uuid/uuid.h>
 #include <errno.h>
@@ -227,21 +228,12 @@ static void session_destroy (struct afb_session *session)
 /* update expiration of 'session' according to 'now' */
 static void session_update_expiration(struct afb_session *session, time_t now)
 {
-	int timeout;
 	time_t expiration;
 
 	/* compute expiration */
-	timeout = session->timeout;
-	if (timeout == AFB_SESSION_TIMEOUT_INFINITE)
+	expiration = now + afb_session_timeout(session);
+	if (expiration < 0)
 		expiration = MAX_EXPIRATION;
-	else {
-		if (timeout == AFB_SESSION_TIMEOUT_DEFAULT)
-			expiration = now + sessions.timeout;
-		else
-			expiration = now + timeout;
-		if (expiration < 0)
-			expiration = MAX_EXPIRATION;
-	}
 
 	/* record the expiration */
 	session->expiration = expiration;
@@ -416,6 +408,30 @@ struct afb_session *afb_session_create (int timeout)
 	return afb_session_get(NULL, timeout, NULL);
 }
 
+/**
+ * Returns the timeout of 'session' in seconds
+ */
+int afb_session_timeout(struct afb_session *session)
+{
+	int timeout;
+
+	/* compute timeout */
+	timeout = session->timeout;
+	if (timeout == AFB_SESSION_TIMEOUT_DEFAULT)
+		timeout = sessions.timeout;
+	if (timeout < 0)
+		timeout = INT_MAX;
+	return timeout;
+}
+
+/**
+ * Returns the second remaining before expiration of 'session'
+ */
+int afb_session_what_remains(struct afb_session *session)
+{
+	return (int)(session->expiration - NOW);
+}
+
 /* This function will return exiting session or newly created session */
 struct afb_session *afb_session_get (const char *uuid, int timeout, int *created)
 {
diff --git a/src/afb-session.h b/src/afb-session.h
index c93db5c4..8e2ee3d6 100644
--- a/src/afb-session.h
+++ b/src/afb-session.h
@@ -43,6 +43,8 @@ extern int afb_session_is_closed (struct afb_session *session);
 extern int afb_session_check_token(struct afb_session *session, const char *token);
 extern void afb_session_new_token(struct afb_session *session);
 extern const char *afb_session_token(struct afb_session *session);
+extern int afb_session_timeout(struct afb_session *session);
+extern int afb_session_what_remains(struct afb_session *session);
 
 extern void *afb_session_get_cookie(struct afb_session *session, const void *key);
 extern void *afb_session_cookie(struct afb_session *session, const void *key, void *(*makecb)(void *closure), void (*freecb)(void *item), void *closure, int replace);
-- 
2.16.6