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- #ifndef _sip_dialog_h_
- #define _sip_dialog_h_
-
- #include "sip-header.h"
- #include "sys/atomic.h"
- #include "cstring.h"
- #include "list.h"
- #include <stdint.h>
-
- #if defined(__cplusplus)
- extern "C" {
- #endif
-
- enum {
- DIALOG_ERALY = 0,
- DIALOG_CONFIRMED,
- DIALOG_TERMINATED,
- };
-
- struct sip_agent_t;
- struct sip_message_t;
- struct sip_dialog_t
- {
- int state; // DIALOG_ERALY/DIALOG_CONFIRMED
-
- struct cstring_t callid;
- struct
- {
- uint32_t id; // local/remote sequence number
- uint32_t rseq; // rfc3262 PRACK, [1, 2**31 - 1]
- struct sip_contact_t uri; // local/remote URI(From/To Field)
- struct sip_uri_t target; // local/remote target(Contact Field)
- } local, remote;
- int secure; // bool
-
- // route set(the list of URIs in the Record-Route header field from the request)
- struct sip_uris_t routers;
-
- // internal use only
- void* session; // user-defined session
- struct list_head link;
- char* ptr;
- int32_t ref;
- };
-
- struct sip_dialog_t* sip_dialog_create(void);
- int sip_dialog_release(struct sip_dialog_t* dialog);
- int sip_dialog_addref(struct sip_dialog_t* dialog);
-
- int sip_dialog_init_uac(struct sip_dialog_t* dialog, const struct sip_message_t* msg);
- int sip_dialog_init_uas(struct sip_dialog_t* dialog, const struct sip_message_t* msg);
-
- int sip_dialog_setlocaltag(struct sip_dialog_t* dialog, const struct cstring_t* tag);
- int sip_dialog_target_refresh(struct sip_dialog_t* dialog, const struct sip_message_t* msg);
- int sip_dialog_set_local_target(struct sip_dialog_t* dialog, const struct sip_message_t* msg);
-
- // dialog management
- int sip_dialog_add(struct sip_agent_t* sip, struct sip_dialog_t* dialog);
- int sip_dialog_remove(struct sip_agent_t* sip, struct sip_dialog_t* dialog);
-
- /// call sip_dialog_release
- struct sip_dialog_t* sip_dialog_fetch(struct sip_agent_t* sip, const struct cstring_t* callid, const struct cstring_t* local, const struct cstring_t* remote);
-
- #if defined(__cplusplus)
- }
- #endif
- #endif /* !_sip_dialog_h_ */
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