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Dependents: TYBLE16_simple_data_logger TYBLE16_MP3_Air
timing.h File Reference
Portable interface to timeouts and to the CPU cycle counter. More...
Go to the source code of this file.
Data Structures | |
| struct | mbedtls_timing_hr_time |
| timer structure More... | |
| struct | mbedtls_timing_delay_context |
| Context for mbedtls_timing_set/get_delay() More... | |
Typedefs | |
| typedef struct mbedtls_timing_delay_context | mbedtls_timing_delay_context |
| Context for mbedtls_timing_set/get_delay() | |
Functions | |
| unsigned long | mbedtls_timing_hardclock (void) |
| Return the CPU cycle counter value. | |
| unsigned long | mbedtls_timing_get_timer (struct mbedtls_timing_hr_time *val, int reset) |
| Return the elapsed time in milliseconds. | |
| void | mbedtls_set_alarm (int seconds) |
| Setup an alarm clock. | |
| void | mbedtls_timing_set_delay (void *data, uint32_t int_ms, uint32_t fin_ms) |
Set a pair of delays to watch (See mbedtls_timing_get_delay().) | |
| int | mbedtls_timing_get_delay (void *data) |
| Get the status of delays (Memory helper: number of delays passed.) | |
| int | mbedtls_timing_self_test (int verbose) |
| Checkup routine. | |
Detailed Description
Portable interface to timeouts and to the CPU cycle counter.
Definition in file timing.h.
Typedef Documentation
| typedef struct mbedtls_timing_delay_context mbedtls_timing_delay_context |
Context for mbedtls_timing_set/get_delay()
Function Documentation
| void mbedtls_set_alarm | ( | int | seconds ) |
| int mbedtls_timing_get_delay | ( | void * | data ) |
Get the status of delays (Memory helper: number of delays passed.)
- Parameters:
-
data Pointer to timing data Must point to a valid mbedtls_timing_delay_contextstruct.
- Returns:
- -1 if cancelled (fin_ms = 0), 0 if none of the delays are passed, 1 if only the intermediate delay is passed, 2 if the final delay is passed.
| unsigned long mbedtls_timing_get_timer | ( | struct mbedtls_timing_hr_time * | val, |
| int | reset | ||
| ) |
Return the elapsed time in milliseconds.
- Parameters:
-
val points to a timer structure reset If 0, query the elapsed time. Otherwise (re)start the timer.
- Returns:
- Elapsed time since the previous reset in ms. When restarting, this is always 0.
- Note:
- To initialize a timer, call this function with reset=1.
Determining the elapsed time and resetting the timer is not atomic on all platforms, so after the sequence `{ get_timer(1); ...; time1 = get_timer(1); ...; time2 = get_timer(0) }` the value time1+time2 is only approximately the delay since the first reset.
| unsigned long mbedtls_timing_hardclock | ( | void | ) |
| int mbedtls_timing_self_test | ( | int | verbose ) |
| void mbedtls_timing_set_delay | ( | void * | data, |
| uint32_t | int_ms, | ||
| uint32_t | fin_ms | ||
| ) |
Set a pair of delays to watch (See mbedtls_timing_get_delay().)
- Parameters:
-
data Pointer to timing data. Must point to a valid mbedtls_timing_delay_contextstruct.int_ms First (intermediate) delay in milliseconds. The effect if int_ms > fin_ms is unspecified. fin_ms Second (final) delay in milliseconds. Pass 0 to cancel the current delay.
- Note:
- To set a single delay, either use
mbedtls_timing_set_timerdirectly or use this function with int_ms == fin_ms.
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