This patch introduces a k_sem that will block until:
- data is received, or
- the user-provided timeout expires
This change allows us to simplify our previous DNS client
implementation.
This change is related to ZEP-1357 because we are refactoring the
DNS client API removing the continuous update of the net_context_recv
routine that seems to be causing issues after the kernel's update.
Jira: ZEP-1357
Change-Id: If01c9274ac8f096f0095a2872f86be2e007212ee
Signed-off-by: Flavio Santes <flavio.santes@intel.com>
This commit updates some DNS client private routines to simplify
function signatures and reduce stack usage. Updated routines now
use the dns_context structure.
Change-Id: Ic0d347ea9d610e85eed4179aee08955cf2302436
Signed-off-by: Flavio Santes <flavio.santes@intel.com>
This commit introduces the dns_context structure.
This new structure will reduce stack overhead due to
the simplication of the dns_resolve routine signature.
Furthermore, the timeout parameter is now int32_t
instead of uint32_t.
The dns sample application is also updated.
Change-Id: I5d789656bacbd23c4654edce5d116a88dc42c354
Signed-off-by: Flavio Santes <flavio.santes@intel.com>
In order to keep the initialization process light-weight, remove
net_buf_pool_init() and instead perform the initialization of the pool
and buffers in a "lazy" manner. This means storing more information
in the pool, and removing any 'const' members from net_buf. Since
there are no more const members in net_buf the buffer array can be
declared with __noinit, which further reduces initialization overhead.
Change-Id: Ia126af101c2727c130651b697dcba99d159a1c76
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Until now it has been necessary to separately define a k_fifo and
an array of buffers when creating net_buf pools. This has been a bit
of an inconvenience as well as blurred the line of what exactly
constitutes the "pool".
This patch removes the NET_BUF_POOL() macro and replaces it with a
NET_BUF_POOL_DEFINE() macro that internally expands into the buffer
array and new net_buf_pool struct with a given name:
NET_BUF_POOL_DEFINE(pool_name, ...);
Having a dedicated context struct for the pool has the added benefit
that we can start moving there net_buf members that have the same
value for all buffers from the same pool. The first such member that
gets moved is the destroy callback, thus shrinking net_buf by four
bytes. Another potential candidate is the user_data_size, however
right not that's left out since it would just leave 2 bytes of padding
in net_buf (i.e. not influence its size). Another common value is
buf->size, however that one is also used by net_buf_simple and can
therefore not be moved.
This patch also splits getting buffers from a FIFO and allocating a
new buffer from a pool into two separate APIs: net_buf_get and
net_buf_alloc, thus simplifying the APIs and their usage. There is no
separate 'reserve_head' parameter anymore when allocating, rather the
user is expected to call net_buf_reserve() afterwards if something
else than 0 headroom is desired.
Change-Id: Id91b1e5c2be2deb1274dde47f5edebfe29af383a
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Current net_nbuf_write() api just appends data to last fragment. And
doesn't write data based on offset. That's why renaming this api.
New net_nbuf_write() apis based on offset will be coming soon.
Change-Id: Ie8e13e5f6091a279b62b6d8b0b3928a5187e75b0
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
Signed-off-by: Ravi kumar Veeramally <ravikumar.veeramally@linux.intel.com>
This commit adds the '+' operator that keeps symmetry with the line
below.
Change-Id: Icb2a5f22b5202597e3e0cc252436b422ce7b44a2
Signed-off-by: Flavio Santes <flavio.santes@intel.com>
This commit adds support the DNS client API on top of the new
native IP stack. Some features of this implementation are:
- Support for IPv4 and IPv6
- Support for multiple concurrent queries. A net_buf structure is
required per context. See the DNS_RESOLVER_ADDITIONAL_BUF_CTR
configuration variable
Origin: Original
Jira: ZEP-793
Jira: ZEP-855
Jira: ZEP-975
Change-Id: I351a636462a1b78a412c9bce1ef3cd0fa6223a52
Signed-off-by: Flavio Santes <flavio.santes@intel.com>
Flavio Santes