NMT: Add transaction handling

src/nmt/transaction.h

@@ -0,0 +1,32 @@
+
+/* info about subscriber */
+typedef struct nmt_subscriber {
+	/* NOTE: country must be followed by number, so both represent a string */
+	char			country;		/* country digit */
+	char			number[7];		/* phone suffix */
+	char			password[4];		/* phone's password + '\0' */
+	int			coinbox;		/* phone is a coinbox and accept tariff information */
+} nmt_subscriber_t;
+
+/* transaction node */
+typedef struct transaction {
+	struct transaction	*next;			/* pointer to next node in list */
+	nmt_t			*nmt;			/* pointer to nmt instance, if bound to a channel */
+	int			callref;		/* callref for transaction */
+	struct nmt_subscriber	subscriber;
+	struct timer		timer;
+	int			page_try;		/* number of paging try */
+
+	/* caller ID */
+	char			caller_id[33];		/* caller id digits */
+	enum number_type	caller_type;		/* caller id type */
+
+	/* SMS */
+	char			sms_string[256];	/* current string to deliver */
+} transaction_t;
+
+transaction_t *create_transaction(struct nmt_subscriber *subscriber);
+void destroy_transaction(transaction_t *trans);
+transaction_t *get_transaction_by_callref(int callref);
+transaction_t *get_transaction_by_number(struct nmt_subscriber *subscr);
+