Statistics
| Branch: | Tag: | Revision:

amiro-os / core / src / aos_thread.c @ 1678f270

History | View | Annotate | Download (2.35 KB)

1
/*
2
AMiRo-OS is an operating system designed for the Autonomous Mini Robot (AMiRo) platform.
3
Copyright (C) 2016..2019  Thomas Schöpping et al.
4

5
This program is free software: you can redistribute it and/or modify
6
it under the terms of the GNU General Public License as published by
7
the Free Software Foundation, either version 3 of the License, or
8
(at your option) any later version.
9

10
This program is distributed in the hope that it will be useful,
11
but WITHOUT ANY WARRANTY; without even the implied warranty of
12
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
13
GNU General Public License for more details.
14

15
You should have received a copy of the GNU General Public License
16
along with this program.  If not, see <http://www.gnu.org/licenses/>.
17
*/
18

    
19
/**
20
 * @file    aos_thread.c
21
 * @brief   Thread code.
22
 *
23
 * @addtogroup aos_threads
24
 * @{
25
 */
26

    
27
#include <aos_thread.h>
28

    
29
/**
30
 * @brief   Lets the calling thread sleep until the specifide system uptime.
31
 *
32
 * @param[in] t     Deadline until the thread will sleep.
33
 */
34
void aosThdSleepUntilS(const aos_timestamp_t* t)
35
{
36
  aosDbgCheck(t != NULL);
37

    
38
  aos_timestamp_t uptime;
39

    
40
  // get the current system uptime
41
  aosSysGetUptimeX(&uptime);
42

    
43
  // while the remaining time is too long, it must be split into multiple sleeps
44
  while ( (*t > uptime) && ((*t - uptime) > AOS_THD_MAX_SLEEP_US) ) {
45
    chThdSleepS(chTimeUS2I(AOS_THD_MAX_SLEEP_US));
46
    aosSysGetUptimeX(&uptime);
47
  }
48

    
49
  // sleep the remaining time
50
  if (*t > uptime) {
51
    sysinterval_t rest = chTimeUS2I(*t - uptime);
52
    if (rest > TIME_IMMEDIATE) {
53
      chThdSleepS(rest);
54
    }
55
  }
56

    
57
  return;
58
}
59

    
60
#if ((AMIROOS_CFG_DBG == true) && (CH_DBG_FILL_THREADS == TRUE)) || defined(__DOXYGEN__)
61
/**
62
 * @brief   Calculate the peak stack utilization for a specific thread so far in bytes.
63
 *
64
 * @param[in] thread    Thread to calculate the stack utilization for.
65
 *
66
 * @return  Absolute peak stack utilization in bytes.
67
 */
68
size_t aosThdGetStackPeakUtilization(thread_t* thread)
69
{
70
  aosDbgCheck(thread != NULL);
71

    
72
  size_t util;
73
  uint8_t* ptr = (uint8_t*)thread->wabase;
74

    
75
  chSysLock();
76
  while (*ptr == CH_DBG_STACK_FILL_VALUE && ptr < (uint8_t*)thread->wabase + aosThdGetStacksize(thread)) {
77
    ++ptr;
78
  }
79
  util = aosThdGetStacksize(thread) - (ptr - (uint8_t*)thread->wabase);
80
  chSysUnlock();
81

    
82
  return util;
83
}
84
#endif /* (AMIROOS_CFG_DBG == true) && (CH_DBG_FILL_THREADS == TRUE) */
85

    
86
/** @} */