tree 77443a6323fd8518c6c98e8cff764e18d395b95d
parent 96898a25ccfde6e87737991000a41695ed6b3812
author Chris Dickens <christopher.a.dickens@gmail.com> 1597111302 -0700
committer Chris Dickens <christopher.a.dickens@gmail.com> 1597111302 -0700

core: Introduce list iteration helpers

The syntax for traversing over lists is somewhat cluttered. It could be
made much better with the use of the 'typeof' keyword, but unfortunately
this is not universally supported by all compilers. We can, however,
improve the situation by introducing some macros for the common cases.
To that end, this commit introduces a number of 'for_each' macros that
iterate over a specific linked list.

Current syntax:

  list_for_each_entry(itransfer, &ctx->flying_transfers, list, struct usbi_transfer)

New syntax:

  for_each_transfer(ctx, itransfer)

Signed-off-by: Chris Dickens <christopher.a.dickens@gmail.com>