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333 Commits

Author SHA1 Message Date
Oleg Hahm
828839316b core: renamed crash.h to panic.h 2015-05-09 18:44:10 +02:00
Joakim Gebart
215ccc1213 core: Introduce atomic counters 
- Move generic implementation of atomic_set_return to core/atomic.c
 - Generic implementation of atomic compare and swap in core/atomic.c
 - atomic_cas is used to implement atomic counters in core/include/atomic.h
 - atomic_int_t is an atomic integer type
 - ATOMIC_INIT can be used as an initializer for atomic_int_t
 - ATOMIC_VALUE gets a reference to the value of an atomic integer
 2015-05-07 18:52:13 +02:00
Oleg Hahm
89e871e7e3 doc: fixes doxygen warnings in core 2015-04-21 18:53:36 +02:00
Martine Lenders
5214e14e66 Revert "debug.h: check stacksize fixed" 2015-03-31 22:38:04 +02:00
Simon Brummer
b495c24609 debug.h: check stacksize fixed 2015-03-31 13:26:21 +02:00
altairpearl
a409191b71 core: Updated include guards to remove leading underscores 2015-03-30 06:10:58 +05:30
Ludwig Ortmann
d701cefd5e Revert "core: limit message queue size" 2015-03-27 22:46:40 +01:00
Darredevil
d5542beb91 core/include/cib: repaired file include guards 2015-03-24 22:38:29 +02:00
Alexandru Caciulescu
a53e06a772 core: limit message queue size 2015-03-24 22:19:38 +02:00
Oleg Hahm
70c014d698 doc: additional hint for msg_send_receive() 2015-03-18 14:26:03 +01:00
Kaspar Schleiser
2acd216d5a Merge pull request #2589 from kushalsingh007/isr 
Core: doc: add note advising against creation of threads from within ISR
 2015-03-17 10:58:26 +01:00
kushalsingh007
3b7e54b441 Core: Change in description of thread_create function. 
- Fixes #2136
- Adds warning about creating threads from within an ISR.
 2015-03-13 19:55:08 +05:30
Oleg Hahm
4fec8fd31e doc: improvement to IPC documentation 
Per default, doxygen will take only the part until the first dot into
account for the brief description. In this case this leads to an
ambiguous overview over the IPC send functions.
 2015-03-13 10:15:41 +01:00
Ludwig Ortmann
0b8271a08a Merge pull request #2429 from authmillenon/all/doc/enable-helper-macros 
doc: enable helper macros for doxygen
 2015-03-07 11:32:04 +01:00
Oleg Hahm
e75d9505ae core: added missing semicolon in header 2015-03-05 17:08:52 +01:00
Oleg Hahm
b441cdfb3a core: documentation: document msg_reply_int() 2015-03-05 16:03:08 +01:00
Oleg Hahm
460dcdf8bb core: documentation: msg_reply returns -1 on error 2015-03-05 15:54:43 +01:00
Martine Lenders
21dd2eb21d doc: enable helper macros for doxygen 2015-03-03 17:53:32 +01:00
Ludwig Ortmann
cec87139a5 core, cpu, drivers, tests: remove trailing space 2015-02-18 13:52:48 +01:00
Martine Lenders
ffe9678bd1 core: expand documentation of thread_create() 
Adds specific documentation for the error return values of
thread_create().
 2015-02-13 21:34:33 +01:00
Martine Lenders
29c3fe9830 [SQUASH ME] fix typo 2015-02-12 14:30:36 +01:00
Martine Lenders
da10435a61 debug: Make DEBUGF more platform-independent 2015-02-12 12:57:21 +01:00
Martine Lenders
0eb2d78dda doc: use my real name 2015-02-08 18:52:16 +01:00
BytesGalore
714ee38355 boards: core: cpu: drivers: sys: added missing header guards 2015-01-27 19:10:57 +01:00
René Kijewski
5f29fed076 core: introduce msg_sent_by_int() 
msg_send_int() sets `m->sender_pid = target_pid`. This was used to flag a
message as having been sent by an ISR.

This PR introduces a static inline function `msg_sent_by_int()` and a
specific define for this purpose.
 2014-12-18 23:04:03 +01:00
Ludwig Ortmann
ad14b60fe7 Merge pull request #1958 from Kijewski/sched_switch-on-run-queue 
core: `sched_switch()` switch if not on runqueue
 2014-12-16 11:41:39 +01:00
Ludwig Ortmann
093085b4ff native: workaround for missing __builtin_bswap16 
Implements a workaround for
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=52624

This is present in current versions of ubuntu 12.04 and debian 7.7 (stable).
 2014-12-15 09:27:40 +01:00
René Kijewski
370f926bad core: sched_switch() switch if not on runqueue 
Fixes #1935.

`sched_switch()` should not only switch if the other priority is higher,
but also if the current thread was moved from the runqueue.
 2014-12-11 17:39:17 +01:00
Ludwig Ortmann
6c9e892927 Merge pull request #2139 from OlegHahm/doxygen_fix_core_warnings 
doc: core: sched: add some references
 2014-12-05 16:56:53 +01:00
Oleg Hahm
07fe5bcc9f Merge pull request #1709 from benpicco/hwtimer_fix 
allow HWTIMER_SPEED > 1000000
 2014-12-04 19:00:38 +01:00
Oleg Hahm
000450c894 Merge pull request #2117 from OlegHahm/doxygen_eliminate_warnings 
Doxygen eliminate warnings pt. 2
 2014-12-04 17:18:42 +01:00
Oleg Hahm
0ccf1043de doc: fixed broken doxygen references 2014-12-04 17:16:57 +01:00
Oleg Hahm
5adb43cc75 doc: add some references 2014-12-04 16:50:21 +01:00
Oleg Hahm
6310927ed7 doc: document internal cib init macro 2014-12-04 15:11:42 +01:00
Oleg Hahm
e9426ef9ab core: undefining ENABLE_DEBUG is no longer required 2014-12-03 22:56:15 +01:00
Ludwig Ortmann
e6c808d5fa Merge pull request #1970 from Kijewski/optimize-cib 
core: inline `cib.c`
 2014-12-03 17:12:48 +01:00
Oleg Hahm
d92e9af91c doc: fixed broken param descriptions 2014-11-30 22:34:50 +01:00
Ludwig Ortmann
68e1db938c core/hwtimer: fix HWTIMER_SPIN_BARRIER doc 2014-11-28 13:53:23 +01:00
René Kijewski
8a9220a85c core: cib size must not exceed MAXINT/2 2014-11-26 18:04:54 +01:00
Hauke Petersen
2220a9fab0 core/cpu/boards: removed fw_puts from RIOT 2014-11-21 13:09:02 +01:00
Oleg Hahm
459f550be5 Merge pull request #2042 from Kijewski/restrict 
c++: `s/restrict/__restrict/`
 2014-11-19 15:29:23 +01:00
Oleg Hahm
771b3a4506 Merge pull request #1984 from Kijewski/net_help-is-odd 
core: move NTOHL and friends into byteorder.h
 2014-11-19 15:11:43 +01:00
René Kijewski
f89e1f4a3d c++: s/restrict/__restrict/ 
`restrict` is not a keyword in C++, but `__restrict` is understood by
GCC-ish compilers.
 2014-11-19 14:27:19 +01:00
Kaspar Schleiser
9ce0b676b4 core: sys: move ringbuffer to core 2014-11-19 14:18:39 +01:00
René Kijewski
2c370862b7 core: allow inclusion of byteorder.h in C++ code 2014-11-19 00:47:25 +01:00
René Kijewski
434d6a1f65 core: move NTOHL and friends into byteorder.h 2014-11-19 00:46:41 +01:00
René Kijewski
a07b44781d C++ -_- 2014-11-11 21:07:40 +01:00
René Kijewski
ab545f83b0 core: inline cib.c 
The functions in `cib.h` are only used in `msg.c`. They are very small,
and proper function calls have a bigger overhead than inlining these
functions.

The difference in .text size (worst to best):

```
+104 native
+69  qemu-i386
+32  mbed_lpc1768
+28  samr21-xpro

-54  chronos
-54  z1
-56  iot-lab_M3
-56  msb-430
-56  msb-430h
-56  msba2
-56  openmote
-56  spark-core
-56  telosb
-56  wsn430-v1_3b
-56  wsn430-v1_4
-58  arduino-mega2560
-60  airfy-beacon
-60  arduino-due
-60  f4vi1
-60  msbiot
-60  pca10000
-60  pca10005
-60  stm32f0discovery
-60  stm32f3discovery
-60  stm32f4discovery
-60  udoo
-60  yunjia-nrf51822
-72  avsextrem
-72  pttu
-120 redbee-econotag
```
 2014-11-11 17:40:18 +01:00
René Kijewski
23177e5326 Remove special case for atmega in kernel_types.h 2014-11-11 11:42:44 +01:00
Kaspar Schleiser
feb550f17a Merge pull request #1885 from OlegHahm/thread_yield_higher_cleanup 
core: thread_yield_higher cleanup
 2014-10-30 23:22:27 +01:00
Oleg Hahm
6b39ce9650 config: moved from core to sys 
There's no need to run config_load from core directly, can be done by
auto_init.
 2014-10-30 22:27:11 +01:00
Oleg Hahm
09f225f6ed config: use radio_address_t 2014-10-30 22:27:11 +01:00
René Kijewski
9ddbf57709 core: refactor sched_run 
`sched_run()` was cluttered. Many individual changes were done without a
proper refactoring.
 2014-10-30 21:00:09 +01:00
Oleg Hahm
9a61d8cf1c core: move optional tcb members to DEVELHELP 2014-10-30 16:37:10 +01:00
Oleg Hahm
4885690874 core: update irq_arch documentation 2014-10-30 16:11:11 +01:00
Oleg Hahm
93ac114bc3 core: move thread_yield*() to thread.[ch] 
Although it might conceptionally rather belong to the scheduler, the
yield functions are prefixed with thread_ and thus, belong there.
 2014-10-28 00:56:37 +01:00
Oleg Hahm
6f53cd484d core: make sched_runqueue public 
Reverting b604832, because thread_yield() needs to access this
information.
 2014-10-28 00:56:14 +01:00
Oleg Hahm
c33e1b5dad Merge pull request #1844 from OlegHahm/doxygen_cleanup 
Doxygen cleanup
 2014-10-24 16:04:01 +02:00
Oleg Hahm
9b819c4dd6 Merge pull request #1836 from Kijewski/yield-less 
core: introduce sched_yield(), yield less
 2014-10-24 10:05:37 +02:00
René Kijewski
677d690e2b core: introduce thread_yield_higher(), yield less 
Fixes #1708.

Currently involuntary preemption causes the current thread not only to
yield for a higher prioritized thread, but all other threads of its own
priority class, too.

This PR adds the function `thread_yield_higher()`, which will yield the
current thread in favor of higher prioritized functions, but not for
threads of its own priority class.

Boards now need to implement `thread_yield_higher()` instead of
`thread_yield()`, but `COREIF_NG` boards are not affected in any way.

`thread_yield()` retains its old meaning: yield for every thread that
has the same or a higher priority.

This PR does not touch the occurrences of `thread_yield()` in the periph
drivers, because the author of this PR did not look into the logic of
the various driver implementations.
 2014-10-24 00:09:56 +02:00
Oleg Hahm
206b75933e doc: fixed remaining doxygen warnings in core 
Only one warning remains and will be fixed in a separate commit.
 2014-10-23 18:30:09 +02:00
Oleg Hahm
db8f3d2650 cpu: use typed function pointer for thread_arch_init 2014-10-23 18:26:21 +02:00
Oleg Hahm
18381661dc doc: fix documentation for hwtimer 
@verbatim was used incorrectly and a closing html tag was missing
 2014-10-23 17:29:25 +02:00
René Kijewski
b604832777 core: make sched_runqueues static 
PR #1000 overlooked to rename `runqueues` into `sched_runqueues` in
 `sched.h`. This shows that the variable is not used outside of
 `sched.c`.

 As the list should not be accessed outside of the scheduler, so it
 can be `static`.
 2014-10-22 16:55:50 +02:00
Kaspar Schleiser
bdcac07faa core: msg: introduce msg_try_send 2014-10-22 12:37:33 +02:00
DangNhat Pham-Huu
e6c7414357 Merge pull request #1805 from BytesGalore/extern_C_in_headers_core_unguard_includes 
core: moved `#include`s outside the `extern "C"` guards
 2014-10-22 07:09:57 +07:00
Martine Lenders
a7ed27130d byteorder: silence warnings in clang 2014-10-21 19:50:37 +02:00
BytesGalore
74161f0f2d core: moved #includes outside the extern "C" guards 2014-10-21 13:46:04 +02:00
René Kijewski
862000b715 core: align stack on a 32bit boundary 
Fixes #1267.
 2014-10-17 18:22:37 +02:00
Ludwig Ortmann
ab418faa34 core: add doxygen header for kernel_types 2014-10-13 19:44:35 +02:00
Ludwig Ortmann
2fe2a39602 core: refactor check for valid pid 
move into header and remove redundant condition
 2014-10-13 19:44:35 +02:00
Martine Lenders
42f96b0d60 Merge pull request #1699 from Kijewski/issue-1586 
core: Provide functions for different byte orders
 2014-10-10 07:38:57 +02:00
Pham Huu Dang Nhat
2ded32dee7 c++: core: add extern C in header files 2014-10-09 06:18:16 +07:00
Benjamin Valentin
d6ca7c44c2 prevent rounding 0 if HWTIMER_SPEED > 1000000L 
The current macros in hwtimer.h expect HWTIMER_SPEED to be < 1000000L, otherwise integer arithmetic will round the result down to 0.
Add a case to prevent that.
 2014-10-06 22:13:48 +02:00
Ludwig Ortmann
f677f70836 core/hwtimer: add HWTIMER_WAIT_OVERHEAD 2014-10-01 19:53:43 +02:00
Ludwig Ortmann
0a8be81526 core/hwtimer: clean up header 
- break/shorten overlong lines
- improve grammar
 2014-10-01 19:53:42 +02:00
Ludwig Ortmann
da550bc913 introduce HWTIMER_SPIN_BARRIER (API change) 
Boards should define HWTIMER_SPIN_BARRIER that is used to decide
whether it makes sense to set a timer and yield or call hwtimer_spin
instead.
Used by `core/hwtimer.c` and `sys/vtimer/vtimer.c`.
A default value is provided and a warning is printed when it is used.
 2014-10-01 19:53:42 +02:00
René Kijewski
749db8d0dd core: Provide functions for different byte orders 
Rationale: see #1586.
 2014-09-29 21:07:02 +02:00
René Kijewski
4e50d74272 core: Provide ssize_t in a common place 
Now you can include `kernel_types.h` if you need the `ssize_t`, without
 facing problems due to the terrible MSP toolchain.
 2014-09-26 14:04:30 +02:00
Ludwig Ortmann
289c4c0ee4 doc: add license headers to some .h files 2014-09-18 17:45:11 +02:00
Martine Lenders
1cc82b6aa7 core: priority_queue: simplify inheritance 2014-09-05 18:17:12 +02:00
Ludwig Ortmann
b7992922ce fix license headers in non-.c files 2014-08-23 16:16:26 +02:00
Kaspar Schleiser
003dd1969c Merge pull request #1566 from Kijewski/undef_is_null 
core: let PIDs begin with 1
 2014-08-22 00:43:04 +02:00
René Kijewski
a5c9d4572d core: clist without explicit thread 
Right now the core component `clist` is a generic cyclic doubly-linked list.
In the core it is used in `tcb_t::rq_entry`.
Further it is used `net_if.c`.

This commit removes the member `clist_node_t::data` which stored the
pointer to the `tcb_t` instance of which the clist is already a member.
The needless member added `sizeof (int)` bytes to every instance of
`tcb_t`.

In `net_if.c` the clist was used in a type-punned way, so that the
change won't affect it.
 2014-08-21 21:10:04 +02:00
Kaspar Schleiser
8538670e12 Merge pull request #1583 from Kijewski/issue-1399 
core: SCHED_PRIO_LEVELS==16 for every board
 2014-08-21 20:04:57 +02:00
René Kijewski
b4f105f178 core: SCHED_PRIO_LEVELS==16 for every board 
Closes #1399.

> Using a different value for SCHED_PRIO_LEVELS for 16 and 32 bit
platforms hurts portability, one thing that we heavily advertise about
RIOT. if you want to write a portable application, then you have to
assume the lower value.

This PR defaults `SCHED_PRIO_LEVELS` to 16 for every board.
 2014-08-18 10:43:41 +02:00
René Kijewski
2cb4166c3e all over the place: use sched_active_pid 
In many places we needlessly use `sched_active_thread->pid` whilst we
already have `sched_active_pid` with the same value, and one less
indirection.

`thread_getpid()` is made `static inline` so that there is no penalty in
using this function over accessing `sched_active_pid` directly.
 2014-08-17 21:04:25 +02:00
René Kijewski
427a5fbaef core: let valid PIDs start with 1 2014-08-17 19:51:03 +02:00
René Kijewski
b31e5a8675 core: introduce KERNEL_PID_FIRST and KERNEL_PID_LAST 2014-08-17 19:50:34 +02:00
René Kijewski
a7e5157fd9 core: add thread_get() 
Remove PID check duplication in `thread_getstatus()` and
`thread_getname()`.
 2014-08-15 01:16:13 +02:00
Oleg Hahm
c2b0423918 core: renamed KERNEL_PID_NULL to KERNEL_PID_UNDEF 
As @authmillenon pointed out the "null" in the old name is somewhat
misleading, since the actual value is -1.
 2014-08-07 16:31:27 +02:00
Oleg Hahm
0836cd0b18 core: moved definition of KERNEL_PID_NULL 
kernel_pid_t is defined in kernel_types.h, thus it makes sense to move
the macro for an invalid kernel pid there, too.
 2014-08-07 16:31:27 +02:00
René Kijewski
a5fe9078c8 Merge pull request #1293 from Kijewski/issue-1287 
core: only store the stack size for DEVELHELP (implementation)
 2014-08-05 18:56:29 +02:00
Ludwig Ortmann
1efdf99dfe core/priority_queue: add dynamic initializers 
- priority_queue_init
- priority_queue_node_init
 2014-08-05 17:57:45 +02:00
Ludwig Ortmann
c2b2e4554b core/queue: queue -> priority_queue 
Rename queue to priority queue, because that's what it is.
 2014-08-05 17:57:45 +02:00
Ludwig Ortmann
2e190d21ed doc: fix spelling in core/include 2014-08-05 17:08:53 +02:00
René Kijewski
f7bdc7e4fe core: thread_measure_stack_free() is only useful for DEVELHELP 2014-08-02 00:35:41 +02:00
René Kijewski
9e3830a72b core: only store the stack size for DEVELHELP 
`tcp_t::stack_size` is only examined by the shell command `ps` and
`DEBUG_PRINT`. For the latter one only if `DEVELHELP` was enabled.

This PR guards the member `tcp_t::stack_size` in `#ifdef DEVELHELP`.
Only if DEVELHELP was activated its value get printed by `ps`.

Closes #1287.
 2014-08-02 00:35:41 +02:00
Ludwig Ortmann
c216d2870f doc: add detailed scheduler documentation 2014-08-01 18:57:31 +02:00
Oleg Hahm
983d056c75 core: harmonizes the data type for the process ID 
Instead of using differing integer types use kernel_pid_t for process
identifier. This type is introduced in a new header file to avoid
circular dependencies.
 2014-08-01 12:02:54 +02:00