ARMmbed
/
mbed-os
mirror of https://github.com/ARMmbed/mbed-os.git
1
0
Fork 0
Code Issues Projects Releases Wiki Activity

Fix ticker_read_us() race condition.

pull/9186/head
Thomas Kemmer 2018-12-21 20:41:47 +01:00
parent ac361d6a4b
commit b0a18b32a0
1 changed files with 4 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
hal/mbed_ticker_api.c
View File

@ -416,13 +416,16 @@ timestamp_t ticker_read(const ticker_data_t *const ticker)
us_timestamp_t ticker_read_us(const ticker_data_t *const ticker)
{
us_timestamp_t ret;
initialize(ticker);
core_util_critical_section_enter();
update_present_time(ticker);
ret = ticker->queue->present_time;
core_util_critical_section_exit();
return ticker->queue->present_time;
return ret;
}
int ticker_get_next_timestamp(const ticker_data_t *const data, timestamp_t *timestamp)