Commit Graph

6 Commits

Author SHA1 Message Date
Benjamin Walsh
b017986347 kernel/poll: add missing poll_event runtime init
It was in the static initializers, but was missing from the object
runtime init functions.

Change-Id: I10d519760eabdbe640a19cc5cfa9241c1356b070
Signed-off-by: Benjamin Walsh <walsh.benj@gmail.com>
2017-02-03 13:54:00 +00:00
Johan Hedberg
1387effa86 kernel: Fix k_poll support for k_fifo_put_list
With the recently added k_poll feature, k_fifo_put_list was forgotten
about. Add the necessary code to wake up a k_poll call when
k_fifo_put_list is called.

Change-Id: Ib9baef5ee2bd00620e2eea5afdd81accc4518bd5
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
2017-02-02 15:12:36 +00:00
Benjamin Walsh
acc68c1e59 kernel: add k_poll() API
k_poll() is similar to the POSIX poll() API in spirit in that it allows
a single thread to monitor multiple events without actively polling
them, but rather pending for one or more to become ready. Such events
can be a direct event, or kernel objects (currently only semaphores and
fifos).

When a kernel object being polled on is ready, it is not "given" to the
poller: the poller must then acquire it via the regular API for the
object (e.g. k_sem_take()). Only one thread can poll on a particular
object at one time. These restrictions mean that k_poll() is most
effective when a single thread monitors multiple events that are not
subject for contention. For example, being the sole reader on multiple
fifos, or the only thread being signalled by multiple semaphores, or a
combination of both.

Change-Id: I7035a9baf4aa016fb87afc5f5c0f5f8cb216480f
Signed-off-by: Benjamin Walsh <walsh.benj@gmail.com>
2017-02-02 00:30:00 +00:00
David B. Kinder
ac74d8b652 license: Replace Apache boilerplate with SPDX tag
Replace the existing Apache 2.0 boilerplate header with an SPDX tag
throughout the zephyr code tree. This patch was generated via a
script run over the master branch.

Also updated doc/porting/application.rst that had a dependency on
line numbers in a literal include.

Manually updated subsys/logging/sys_log.c that had a malformed
header in the original file.  Also cleanup several cases that already
had a SPDX tag and we either got a duplicate or missed updating.

Jira: ZEP-1457

Change-Id: I6131a1d4ee0e58f5b938300c2d2fc77d2e69572c
Signed-off-by: David B. Kinder <david.b.kinder@intel.com>
Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
2017-01-19 03:50:58 +00:00
Anas Nashif
2f203c2f92 tracing: rename CONFIG_DEBUG_TRACING_KERNEL_OBJECTS
Use a short name for this option CONFIG_OBJECT_TRACING.

Change-Id: Id27de7ef9ca299492b6b7d2324d9f5bcf8059a31
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2016-12-19 14:59:35 -05:00
Anas Nashif
d687a95611 kernel: move kernel code to kernel/ directly
Also remove mentions of unified kernel in various places in the kernel,
samples and documentation.

Change-Id: Ice43bc73badbe7e14bae40fd6f2a302f6528a77d
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
2016-12-19 14:59:35 -05:00