Mempool is a type of memory allocator that allows to
free all allocated elements at once.
Removed unnecessary string and state operations.
Licensed under LGPL, same as lists and heap.

Change-Id: I8b8f84f41dcc321f37e51894b5c121f463c4f111

Default is libc malloc/free.
This will be used to supply to functions where a memory is allocated
in some context (f.e. when building packet) so the API stays the same
and we could switch the allocator as we see fit.

Change-Id: Ia5956b6da38d9feb01c5bfb0a4cd4e9393db0589

Change-Id: I39d236a0d6594692597f2e66624f0b0d56928c34

Change-Id: Ia8388c541fec44a17f284fc0e4c2aa83afa9b74f

Change-Id: I436236bc78c45f576dfee3ff251ba7ca9c95d1b0

Change-Id: Ie3e7fab14198c6add9055c9f24eece9c7c123bd1

refs #2137

Change-Id: I83a723cb07f482b886c588e6ec0f8910c2f97964

refs #2137

Change-Id: I42c905d94858e90d87136117e7aaaaaf415854b1

Coverity scan #1019150

Change-Id: I09e97249299856612bec953eb79f33b978d23580

Coverity scan #1019149

Change-Id: I3beb8efced13d2bf5a5316ae02835739ffa54263

Change-Id: If0df4f7947110b84b7c45dc909b3fbd5c5f048a6

Getaddrinfo result for remote server is stored in net_t structure. This allows
to query each resolved address via net_t.srv. It is important for example if
the server has associated AAAA and A records, but listens on IPv4 address only.

refs #2137

Change-Id: Iadd2b011a25a8d9e13f05b239a78f42f8d69b5de

Change-Id: Ica5b201351cf9c0d9bb69c052796c2ed38873e6a

Change-Id: I8d128c3408a794f0ad183e15e20a3afa31989e88

Change-Id: I0f9c1bf7eee52c22550dcb5d9946fba4ecf91ad5

Actual macro has dest and src switched.

Change-Id: I4a8e0f32fb85f4efece0b325c8ceea22cf1b42aa

General idea is regular search with keeping node stack.
If node is found, then return current node.
If node is htable, search for suffixes in htable.
If anything fails, walk up the visited nodes and check if
any visited node has value. If yes, then it is a prefix.

f.e. searching for 'abcd'
visited nodes: root -a-> {1:trie} -b-> {2:htable}
1. search htable for 'cd', 'c'
2. retrace to node {1}, does it have value?
3. yes, node1 is prefix 'ab' for 'abcd'

Change-Id: I622adbe9a127d8317b933af4bf56e1411e2d915f

Previous with full dname copy and chopping was really inefficient.
Yields approx. 20% lower relative cost, 6% throughput increase.

Change-Id: Icaa49572f75769739ae61f48d2ca958e38db6104

Change-Id: I3cfa7f07a71b1d8b9e77f93ef16b683c15f9fe24

Change-Id: I571cc82f393d526e43ba17ade19f57ce067b5c52

Coccinelle patch used to perform this cleanup is included.

Change-Id: Ia367764245c845839fd22034b2b5f58b93bd54e8

Change-Id: Ib942dde21c1a386cbde98ab422608abc2f1b35cc

Change-Id: If7b7a325ed20432d8fc3da73e931e0fa44a37add

Change-Id: I6dd8a10278383e8c97e399562fec3562cbb848d8

Change-Id: I4eedcaf1e9fef0e43494314e16c68b0bbb2d3107

Change-Id: Id352f59b8ef9011e0379455bc485072d9b67b029

Change-Id: I2683becadd439cc55de64e6eea96a9e2a47667b0

Change-Id: I80c06b6d17a532d3185c73b17da1177646f3b64c

Change-Id: I777d3986ac9197ec438b0b7c00b2098ba60d9437

This allows creating of multiple signatures without reloading the key
every time when a new signature is needed.

refs #2413

Change-Id: I1392a6a697e9a599eaceee21dbe4410ae01c6f46

Change-Id: I4e314b414f0ce94ff691f00a461653350b10370e

Handler destructor was called only if handler was brought down
while the server was running. Also it didn't free the context struct.

Change-Id: I8e71f4abc2bb314528416eeba063b48f2fb79773

Previously it was set to maximum size and msg_namelen was never
reset, which could cause problems with mixed IPv6/IPv4.

Change-Id: I2b4c58c33324fbe702a5b2aa74db2b530119c4ab

refs #2137

Change-Id: Ibccdf2203e79fd2b9f24e75d54bfedc1eed605c0

refs #2137

Change-Id: I983291e35d76531cd82c7feb7467cd8fbe0cbbf7

refs #2137

Change-Id: I3cf4a2d379846f06656cbbc15a2e793c1f1fbc53

Change-Id: I415c5e449f5f2f046ce8970a72341ba13543bb05

Change-Id: I7d4597e875a42805c307b2c1ed75ed309bf3b37a

Fixed missing RCU unlock in early exit.
Expire event synchronized RCU before marking event as finished,
this could result in deadlocking threads holding RCU read lock while
waiting for event cancellation.
Transfer requests usually hold zone reference, so no RCU locking is
required.

Change-Id: I05caf7feb789c78d253b25812666c639f76ffb96

- Better warning messages.
- Small fixes.

Change-Id: Ief9b250c9203b716a07223b34063c4d840521bee