I hadn't done this for the "fun" code, yet. Also, we should include
system headers after our own headers.
"In general, a module should be implemented by one or more .cpp files.
Each of these .cpp files should include the header that defines their
interface first. This ensures that all of the dependences of the module
header have been properly added to the module header itself, and are not
implicit. System headers should be included after user headers for a
translation unit."
-- http://llvm.org/docs/CodingStandards.html#a-public-header-file-is-a-module
- Any non-externally-visible declarations should be `static`.
- Casting away the `const` qualifier from pointers-to-const is
dangerous. All but one instance of this are now correct. The one
instance where we can't keep `const` is one where toxav code actually
writes to a chunk of memory marked as `const`. This code also assumes
4 byte alignment of data packets. I don't know whether that is a valid
assumption, but it's likely unportable, and *not* obviously correct.
- Replaced empty parameter lists with `(void)` to avoid passing
parameters to it. Empty parameter lists are old style declarations for
unknown number and type of arguments.
- Commented out (as `#if DHT_HARDENING` block) the hardening code that
was never executed.
- Minor style fix: don't use `default` in enum-switches unless the number
of enumerators in the default case is very large. In this case, it was
2, so we want to list them both explicitly to be warned about missing
one if we add one in the future.
- Removed the only two function declarations from nTox.h and put them
into nTox.c. They are not used outside and nTox is not a library.
- Don't cast between object and function pointers.
- Use standard compliant `__VA_ARGS__` in macros.
- Add explicit `__extension__` on unnamed union in struct (it's a GNU
extension).
- Remove ; after function definitions.
- Replace `const T foo = 3;` for integral types `T` with `enum { foo = 3 };`.
Folding integral constants like that as compile time constants is a GNU
extension. Arrays allocated with `foo` as dimension are VLAs on strictly
compliant C99 compilers.
- Replace empty initialiser list `{}` with zero-initialiser-list `{0}`.
The former is a GNU extension meaning the latter.
- Cast `T*` (where `T != void`) to `void *` in format arguments. While any
object pointer can be implicitly converted to and from `void *`, this
conversion does not happen in variadic function calls.
- Replace arithmetic on `void *` with arithmetic on `char *`. The former
is non-compliant.
- Replace non-`int`-derived types (like `uint16_t`, which is
`short`-derived) in bit fields with `int`-derived types. Using any type
other than `int` or `unsigned int` (or any of their aliases) in bit
fields is a GNU extension.
This removes the global logger (which by the way was deleted when the first tox
was killed, so other toxes would then stop logging). Various bits of the code
now carry a logger or pass it around. It's a bit less transparent now, but now
there is no need to have a global logger, and clients can decide what to log and
where.
Apparently when no tty is attached, which is the case for Docker, the
buffer size for stdout increases to the point that only half of the
entire log might be written.
bootstrap_node_packets.c was giving an error as it was being included
twice and there were no include guards, so part of it was split into
bootstrap_node_packets.h.
Useful for things like a Docker container or just running it in the
terminal.
Complements the stdout logging option. This is actually why the stdout
logging was added in the first place -- to be used in the foreground
mode, though nothing stops one from using stdout in the background
mode, which one could redirect to a file.
Passing Logger object into every function isn't fun. See for yourself:
something as simple as a public key printing function turns from
>void print_public_key(const uint8_t *public_key)
to
>void print_public_key(Logger *logger, const uint8_t *public_key)
Some of them were set incorrectly, e.g. something that caused the
daemon to exit was marked as just a warning, instead of an error.
Removed debug level as it was hard to decide whether something should
go into info or debug. This is mostly because the use of the debug level
wasn't well defined. Debug should be used for information that could
help a user to debug an issue, but messages marked as debug were by the
most part the "success" log messages, which could go into info level
instead.
@arthurtiteica has pointed out that systemd has more suitable facilities for
creating a temporary directory for a PID file rather than calling ExecStartPre,
which requires an absolute path to coreutils executables we used for creating a
directory and changing its owner, paths of which are are not universal across
distributions. Systemd can take care of it for us without need to provide
absolute paths, which is what we use here.
