78bcff79e1b1f0efce436b33bdd6da88745bfc8a |
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05-Dec-2015 |
Pavlin Radoslavov <pavlin@google.com> |
Refactor the Bluetooth timers * Updated the alarm API: - Existing API alarm_new() is modified to take an alarm name as an argument. - New API alarm_new_periodic() is used to create a periodic alarm. - Added new API alarm_is_scheduled() to test whether an alarm is scheduled. - Existing API alarm_set_periodic() is removed: a periodic alarm is created by alarm_new_periodic(). - Added new API alarm_set_on_queue() to set an alarm whose callback is executed on a specific queue. - Added new API alarm_register_processing_queue() and alarm_unregister_processing_queue() to register/unregister a queue and the corresponding thread for alarm processing. - Added corresponding unit tests. * Updated the alarm internals: - Added alarm_info_t for collecting alarm-related information and statistics. - Collect and store alarm-related statistics into alarm_info_t per alarm. - Include the alarm-related statistics and info into the native dumpsys output for Bluetooth. - Once an alarm expires, the alarm execution is scheduled for processing on another internal alarm-specific thread, not on the thread that is maintaining the alarms. - Implemented callback execution ordering guarantee among timers on the same thread with exactly same timeout values. * Refactor some of the usage of alarm_set() and simplify the code by using alarm_set_on_queue() instead. * Removed the non_repeating timers wrapper, and use directly the alarm mechanism / API. * Refactored all timer_entry_t timers and replaced them with alarm_t timers: - Replaced the btu_start_timer() / btu_stop_timer() / btu_start_quick_timer() / btu_stop_quick_timer() / btu_oneshot_alarm() mechanism with alarm_set_on_queue() and alarm_cancel() - Removed the whole mechanism around the BTU_TTYPE_* timers. * Fixed a bug when processing the GATT indication confirmation timer expiration (timer tGATT_TCB.conf_timer: b/26610829). * Renamed and/or split misc. timeout functions, fields, and timers * Renamed time-related constants and changed the values from seconds to milliseconds * Replaced timer tAVDT_CCB.timer_entry with three mutually exclusive timers: idle_ccb_timer, ret_ccb_timer, rsp_ccb_timer The reason we are using three timers, is because in the original code function avdt_ccb_chk_timer() used the timer type in its logic: it would stop the timer only if the type is "idle". * Removed btm_ble_timeout() and replaced it with multiple timeout callback functions (per timer) * Fix the actual value of the global constant BT_1SEC_TIMEOUT and rename it to BT_1SEC_TIMEOUT_MS * Removed btu_cb and associated timers and events, because they are never used. * Removed unused timers, functions, struct and declarations that are not used / needed. Bug: 26611369 Bug: 26610829 Change-Id: I812c8c31710a5daefc58b01fcf35c353768f390f
/system/bt/bta/hf_client/bta_hf_client_at.h
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