diff options
Diffstat (limited to 'src/llc.h')
| -rw-r--r-- | src/llc.h | 80 |
1 files changed, 40 insertions, 40 deletions
@@ -18,9 +18,13 @@ #pragma once +#ifdef __cplusplus extern "C" { +#endif #include <osmocom/core/linuxlist.h> +#ifdef __cplusplus } +#endif #include <stdint.h> #include <string.h> @@ -34,6 +38,8 @@ struct BTS; * I represent the LLC data to a MS */ struct gprs_llc { + +#ifdef __cplusplus static bool is_user_data_frame(uint8_t *data, size_t len); void init(); @@ -43,92 +49,86 @@ struct gprs_llc { void put_frame(const uint8_t *data, size_t len); void put_dummy_frame(size_t req_len); void append_frame(const uint8_t *data, size_t len); - - void consume(size_t len); - void consume(uint8_t *data, size_t len); - - uint16_t chunk_size() const; - uint16_t remaining_space() const; - uint16_t frame_length() const; - - bool fits_in_current_frame(uint8_t size) const; +#endif uint8_t frame[LLC_MAX_LEN]; /* current DL or UL frame */ uint16_t m_index; /* current write/read position of frame */ uint16_t m_length; /* len of current DL LLC_frame, 0 == no frame */ }; +struct MetaInfo { + struct timespec recv_time; + struct timespec expire_time; +}; /** * I store the LLC frames that come from the SGSN. */ struct gprs_llc_queue { - struct MetaInfo { - struct timespec recv_time; - struct timespec expire_time; - }; - +#ifdef __cplusplus static void calc_pdu_lifetime(BTS *bts, const uint16_t pdu_delay_csec, struct timespec *tv); static bool is_frame_expired(const struct timespec *now, const struct timespec *tv); static bool is_user_data_frame(uint8_t *data, size_t len); - void init(); - void enqueue(struct msgb *llc_msg, const struct timespec *expire_time); struct msgb *dequeue(const MetaInfo **info = 0); - void clear(BTS *bts); - void move_and_merge(gprs_llc_queue *o); - size_t size() const; - size_t octets() const; - -private: +#endif uint32_t m_avg_queue_delay; /* Average delay of data going through the queue */ size_t m_queue_size; size_t m_queue_octets; struct llist_head m_queue; /* queued LLC DL data */ - }; +#ifdef __cplusplus +extern "C" { +#endif +void llc_queue_init(struct gprs_llc_queue *q); +void llc_queue_clear(struct gprs_llc_queue *q, struct BTS *bts); +void llc_queue_move_and_merge(struct gprs_llc_queue *q, struct gprs_llc_queue *o); -inline uint16_t gprs_llc::chunk_size() const +static inline uint16_t llc_chunk_size(const struct gprs_llc *llc) { - return m_length - m_index; + return llc->m_length - llc->m_index; } -inline uint16_t gprs_llc::remaining_space() const +static inline uint16_t llc_remaining_space(const struct gprs_llc *llc) { - return LLC_MAX_LEN - m_length; + return LLC_MAX_LEN - llc->m_length; } -inline uint16_t gprs_llc::frame_length() const +static inline uint16_t llc_frame_length(const struct gprs_llc *llc) { - return m_length; + return llc->m_length; } -inline void gprs_llc::consume(size_t len) +static inline void llc_consume(struct gprs_llc *llc, size_t len) { - m_index += len; + llc->m_index += len; } -inline void gprs_llc::consume(uint8_t *data, size_t len) +static inline void llc_consume_data(struct gprs_llc *llc, uint8_t *data, size_t len) { /* copy and increment index */ - memcpy(data, frame + m_index, len); - consume(len); + memcpy(data, llc->frame + llc->m_index, len); + llc_consume(llc, len); } -inline bool gprs_llc::fits_in_current_frame(uint8_t chunk_size) const +static inline bool llc_fits_in_current_frame(const struct gprs_llc *llc, uint8_t chunk_size) { - return m_length + chunk_size <= LLC_MAX_LEN; + return llc->m_length + chunk_size <= LLC_MAX_LEN; } -inline size_t gprs_llc_queue::size() const +static inline size_t llc_queue_size(const struct gprs_llc_queue *q) { - return m_queue_size; + return q->m_queue_size; } -inline size_t gprs_llc_queue::octets() const +static inline size_t llc_queue_octets(const struct gprs_llc_queue *q) { - return m_queue_octets; + return q->m_queue_octets; +} + +#ifdef __cplusplus } +#endif |