These internal iteration macros will make implementing reverse
iteration simpler.  For now, reimplement existing list_for_each_off
and list_for_each_safe_off macros on top of these macros to
prove they pass existing tests.
Signed-off-by: Eric Wong <normalperson@yhbt.net>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>

This allows deleting and re-inserting an element in place
of the deleted element without branching.
Signed-off-by: Eric Wong <normalperson@yhbt.net>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>

These make it easy to add a new element before or after an
existing element in the middle of the list.

The existing list_add and list_add_tail functions are trivially
reimplemented on top of these new functions.
Signed-off-by: Eric Wong <normalperson@yhbt.net>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>

It's a test dependency, not a core one, so it belongs under "testdepends".
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>

Commit 9e2c88b5 added an extra return (with an unconditional byteswap)
in cpu_to_be64. This breaks on big-endian, where we shouldn't be
byteswapping.
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>

This is a small couple of functions for joining lists of strings
together.  The lists can either be varadic arguments or arrays, and
delimiters are optional.

This patch incorporates some advice from David Gibson on the original
module.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>

Mainly include path fixes.

Also Samba's unit tests were enhanced to detect the prefixes
helpapi and helprun to indicate an object was to be linked against
only api/run tests.  We hack around that by #including the helper
code instead.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>

It was missing dependency information, and a description of ntdb.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>

The other option would be to require Python.h, which seems overkill.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>

The Authors entries were added based on source file copyright
statements. Full details can be found via the upstream Samba Git
repository.
Signed-off-by: David Disseldorp <ddiss@suse.de>

Signed-off-by: David Disseldorp <ddiss@suse.de>

As part of Samba, ntdb was built using the Waf build system. As part of
ccan, convert this to a simple Makefile, and add a static config.h.

The Makefile only builds core ntdb components for now - libntdb and
tools.
Signed-off-by: David Disseldorp <ddiss@suse.de>

ntdb is a partial rewrite of Samba's Trivial Database, providing > 4GB
database scalability and an improved API.
Obtained from the Samba repository at git://git.samba.org/samba.git, as
of bd13405e8570e9a5942165a8c52a2bc3fdc9d96e.

See Samba's Git changelog for authorship details.
Signed-off-by: David Disseldorp <ddiss@suse.de>

Kalle shows the superiority of 3 (as does the paper for > 50 buckets).

https://github.com/kallerosenbaum/bitcoin-iblt/wiki/Diff-count-VS-failure-probabilitySigned-off-by: Rusty Russell <rusty@rustcorp.com.au>

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>

This lets you annotate your headers with notes for cdump.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>

We can now parse array sizes properly: comments and extra [] pairs
will no longer confuse us.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>

This was found because ccanlint now looks for examples here too.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>

pushpull module doesn't have examples in pushpull.h.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>

Reported-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>

This catches duplicate timer_add() calls, as well as meaning we don't
need to track if the timer is active before calling timer_del().
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>

The linked list method was problematic, especially if timers delete
other expired timers (eg. the next one in the expired list: the timer_del
will delete it from expired, but that's a bit unexpected).
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>

The BYTESTRING macro is constant, since it's designed to take a string
literal, but it doesn't count as constant since it involves an (inlined)
function call.  That means it can't be used in a static storage duration
initializer.

Unfortunately, I can't see a portable way to make something which can be
used as an initializer, but which can also be used in other contexts where
BYTESTRING() can be used, so this patch introduces BYTESTRING_INIT() which
is similar to BYTESTRING() but produces an initializer.
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>

The bytestring() constructor function satisfies the constraints of
CONST_FUNCTION, so mark it as such.
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>

This introduces the functions bytestring_splitstr_first() and
bytestring_splitstr_next() which can be used to iterate through substrings
of a bytestring separated by a specified substring.
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>