ObjFW  History of src/OFDNSResolver.m of cbc09c6e26895717

On game consoles, initializing sockets takes a significant amount of
time. When not delaying socket initializing, that time is spent during
startup even when the application might never use sockets.

Worse yet, on Amiga, sockets might not be available at all and the
application will fail to start up, even when the application might never
use sockets. file: [d30e19048e] check-in: [7460d2ccd8] user: js, branch: trunk, size: 37266 [annotate] [blame] [check-ins using] [diff]

This avoids problems when comparing them. file: [1f222a13ca] check-in: [ce2b268163] user: js, branch: trunk, size: 32863 [annotate] [blame] [check-ins using] [diff]

Some platforms just don't support non-blocking UDP sockets, but it
should still be possible to resolve DNS names on those. file: [6722a88381] check-in: [ec07db28ed] user: js, branch: trunk, size: 32743 [annotate] [blame] [check-ins using] [diff]

This is only migrating some places, others will be migrated as they are
touched. file: [46f2a3f0a5] check-in: [a0fd103a0b] user: js, branch: trunk, size: 32793 [annotate] [blame] [check-ins using] [diff]

The new names should be more accurate. file: [2df523d351] check-in: [627511b032] user: js, branch: trunk, size: 32897 [annotate] [blame] [check-ins using] [diff]

Since C guarantees minimum sizes for char, short, int, long and long
long, these can be used instead. file: [abd3a40827] check-in: [25c985fec1] user: js, branch: trunk, size: 32902 [annotate] [blame] [check-ins using] [diff]

This is a new superclass for OFTCPSocket to allow sharing code with
other IP stream socket types, namely SCTP. file: [6dace51fe8] check-in: [3dfe642dd3] user: js, branch: trunk, size: 32920 [annotate] [blame] [check-ins using] [diff]

This functionality was temporarily removed by the refactor. file: [14032f9f21] check-in: [355da9743c] user: js, branch: trunk, size: 27980 [annotate] [blame] [check-ins using] [diff]

These are different enough that it makes no sense to have them in one.
Having them in one means all methods are @optional and typos cannot be
caught by the compiler. file: [fbee61aa4a] check-in: [e3c911c7f5] user: js, branch: trunk, size: 27938 [annotate] [blame] [check-ins using] [diff]

This temporarily doesn't use the search domains anymore and makes CNAMEs
slightly more inefficient. The next commits will fix both. file: [4b225df12f] check-in: [ee592cf603] user: js, branch: trunk, size: 27897 [annotate] [blame] [check-ins using] [diff]

This is now in alignment with the terminology of the RFC. file: [d5d7184bab] check-in: [d69f7bc1ff] user: js, branch: trunk, size: 44991 [annotate] [blame] [check-ins using] [diff]

This makes it easier to attach them to a query. file: [f3fddc6663] check-in: [4fd5a7086c] user: js, branch: trunk, size: 45160 [annotate] [blame] [check-ins using] [diff]

It's not very useful and is a problem for the Foundation bridge, as
NSEnumerator does not have it. file: [088c1eb5e1] check-in: [7214a2c7af] user: js, branch: trunk, size: 61758 [annotate] [blame] [check-ins using] [diff]

Because there is usually only one resolver per thread, having the
delegate as a property on the resolver would not work. It is therefore
passed as an argument.

This only changes the public API so far. Internally, the old target /
selector / context pattern is still being used. This will be changed
later. file: [2001e1cd19] check-in: [0afb04d93c] user: js, branch: trunk, size: 61695 [annotate] [blame] [check-ins using] [diff]

This avoids the entire problem of keeping the buffer alive until the
send finished. file: [411a1eb381] check-in: [0f3ae90eef] user: js, branch: trunk, size: 60148 [annotate] [blame] [check-ins using] [diff]

Otherwise, there would be two methods for every operation: One for
success and one for failure. It also makes it easy to forget about
handling failure, so it's better to always pass an optional exception. file: [15c765674a] check-in: [064dbe5127] user: js, branch: trunk, size: 60197 [annotate] [blame] [check-ins using] [diff]

Instead, OFDNSResolver is used for everything now. file: [f094c42133] check-in: [6e9ee122eb] user: js, branch: trunk, size: 59067 [annotate] [blame] [check-ins using] [diff]

This only resolves them when they have been included in the answer.
Sending another query when they are not is the next step. file: [9407cece68] check-in: [25b05b7bce] user: js, branch: trunk, size: 50908 [annotate] [blame] [check-ins using] [diff]

This provides more convenience when the goal is to connect a socket and
provides functionality similar to getaddrinfo().

No support for resolving CNAMEs yet - this will be the next step. file: [8914dd7f51] check-in: [8555d64ee6] user: js, branch: trunk, size: 48894 [annotate] [blame] [check-ins using] [diff]

It's in the headers, but the symbol is missing. file: [fc33672140] check-in: [40bf53792d] user: js, branch: trunk, size: 41668 [annotate] [blame] [check-ins using] [diff]

This allows easily passing around all settings rather than passing each
one individually. file: [3f193a223c] check-in: [4162178e50] user: js, branch: trunk, size: 39045 [annotate] [blame] [check-ins using] [diff]

This means the buffer automatically gets cleaned up when the query is
deallocated. file: [24a25534b2] check-in: [1e6bb58863] user: js, branch: trunk, size: 35580 [annotate] [blame] [check-ins using] [diff]

This avoids unnecessary string construction and parsing and removes
duplicate code to convert an address into a string. file: [9632f6597d] check-in: [75d2d3ba01] user: js, branch: trunk, size: 32496 [annotate] [blame] [check-ins using] [diff]

Instead of containing a struct sockaddr_storage - which does not exist
on all supported platforms - it now contains a union of all struct
sockaddr_* types.

Additionally, if struct sockaddr_in6 does not exist, it is defined so
that an IPv6 can be stored even if the system does not support IPv6. file: [bcc41be191] check-in: [8f810ecb7e] user: js, branch: trunk, size: 33389 [annotate] [blame] [check-ins using] [diff]

Instead, just release them. The reason for this is that -[close]
immediately closes the file descriptor, meaning the next run loop
iteration fails to remove them, as the file descriptor is no longer
valid. file: [5d4867eed8] check-in: [97ccd4a3e4] user: js, branch: trunk, size: 33788 [annotate] [blame] [check-ins using] [diff]

This has always been wrong. file: [bad70f4110] check-in: [e36455441d] user: js, branch: trunk, size: 29145 [annotate] [blame] [check-ins using] [diff]

This does nothing more than parse /etc/hosts and /etc/resolv.conf so
far. file: [54daba6e99] check-in: [dd375b6d4e] user: js, branch: trunk, size: 6764 [annotate] [blame] [check-ins using]