Mostly, several functions that take pointers as arguments, almost
always char * pointers, had those pointers qualified with "const".
Those that returned pointers to previously const-qualified arguments
had their return values qualified as const. Some structure members
were qualified as const to retain that attribute from the variables
from which they were assigned.
The macro DE_CONST was added to isc/util.h to deal with a handful of very
special places where something is qualified as const but really needs to have
its const qualifier removed.
Also cleaned up a few places where variable names clashed with reserved
identifiers. (Which mostly works fine, but strictly speaking is undefined
by the standard.)
Minor other ISC style cleanups.
dns_dispatch_create() no longer exists. dns_dispatch_createtcp()
and dns_dispatch_getudp() are the replacements. _createtcp() takes
a bound, connected TCP socket, while _getudp() will search for
a sharable UDP socket, and if found, attach to it and return a
pointer to it. If one is not found, it will create a udp socket,
bind it to a supplied local address, and create a new dispatcher
around it.
dns_dispatch_remove{request,response}() no longer take the dispatch
as an argument.
query-source can now be set per view.
The dispatch manager holds onto three memory pools, one for
allocating dispatchers from, one for events, and one for
requests/replies. The free list on these pools is hard-coded,
but set to 1024. This keeps us from having to dig into the
isc_mem_t the pools draw from as often.
dns_resolver_create() and dns_view_createresolver() require that
valid dispatchers be passed in; dispatchers are no longer created
for the caller.
line 356: remark(1174): parameter "dev" was declared but never referenced
This is true when ISC_NET_BSD44MSGHDR is not defined. UNUSED()s were added.
line 1580: remark(1552): variable "task" was set but never used
line 1670: remark(1552): variable "task" was set but never used
I removed the stack variable and its assignment in each case.
line 2915: remark(1552): variable "ret" was set but never used
It was apparent that the variable was meant to be the return value
of isc_socket_getsockname, so the return statement was changed to use it.
Also ...
Changed function declarations to ISC coding style.
Wrapped two lines that were wider than column 79.
Removed two UNUSED() macros for variables that were no longer unused.
