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Compiling as C++ changes nothing semantically, but ensures that we don't
break C++ compatibility while also retaining C compatibility.
C++ compatibility is useful for tooling and additional diagnostics and
analyses.
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In a next step, we will remove tests from each file to have a per-binary
split of tests. This will help identify which tests fail most often on
Travis CI.
In another future step, we will split the large one_test into several
auto tests, which will make testing quite a bit slower (adding about 10
seconds setup time to each), but hopefully a lot more stable ("Tox went
offline" should not happen as much anymore).
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Cleanups:
- Fix header guards to not use reserved names.
- Avoid name shadowing.
- Removed an unused variable found by avoiding name shadowing.
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It is still C code, so still compatible with C compilers as well. This
change lets us see more clearly where implicit conversions occur by
making them explicit.
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- All global variables should be static unless they have an explicit
extern declaration in a header file.
- `to_compare` was not used in encryptsave and toxav tests.
- `break` in switch cases is not required directly after `return`,
`goto`, or a noreturn function like `abort`.
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We should aim to make as many structures module-private as possible.
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This reverts commit 21f8db12c45bd56293262cd4abfb73cd9abec821.
It is currently broken. Incoming call callbacks are not invoked, and
instead the client goes offline immediately.
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In the future, all TODOs added either need a bug number (TODO(#NN)) or a
person's github user name. By default, I made irungentoo the owner of
all toxcore TODOs, mannol the owner of toxav TODOs, and myself the owner
of API TODOs.
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This header is a requirement for the public API, therefore is assumed to
exist. It is a C99 standard library header, and _Bool is not intended to
be used directly, except in legacy code that defines bool (and
true/false) itself. We don't use or depend on such code. None of our
client code uses or depends on such code. There is no reason to not use
bool.
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It now enforces a bit more formatting. In particular, padding inside
parentheses is removed. I would like it to remove padding after unary
operators, but there seems to be no option for that.
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Check to ensure that all 3 tox instances are up rather than
just one.
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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
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- 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.
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- 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.
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Messenger is slightly twisty when it comes to sending connection status
callbacks It will very likely need at the very least a partial refactor to
clean it up a bit. Toxcore shouldn't need void *userdata as deep as is
currently does.
(amend 1) Because of the nature of toxcore connection callbacks, I decided to
change this commit from statelessness for connections changes to statelessness
for friend requests. It's simpler this was and doesn't include doing anything
foolish in the time between commits.
group fixup because grayhatter doesn't want to do it
"arguably correct" is not how you write security sensitive code
Clear a compiler warning about types within a function.
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A race condition that happens on machines with heavily used network interfaces
causes tests to fail. Packets sent don't arrive on time. This sleep gives it 100
extra milliseconds. The real fix would be to wait for the event to occur and
then continue, but with a "once-loop" that is tox_iterate, it's not feasible at
this time.
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They don't seem to be a lot less stable than the rest. Either way we regularly
need to restart builds to make timeouts go away.
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http://llvm.org/docs/CodingStandards.html#use-early-exits-and-continue-to-simplify-code
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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.
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OS X and Windows have small thread stacks by default. Allocating audio and video
frames (about 962KB total) on the stack overflows it.
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Once every new moon, the assoc_test would fail because the key is 0. It
can be anything but 0 to succeed, so I made it 1.
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10x timeouts forces travis to kill our build without offering anything helpful
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Moved a few #defines to the top of the header for better readability
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The expression was fun(foo = bar, foo). The evaluation order is unspecified,
and often this will do the wrong thing. We should forbid side effects in
argument lists and conditionals.
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See #40 for details.
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See #27 and #40 for details.
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**What are we doing?**
We are moving towards stateless callbacks. This means that when registering a
callback, you no longer pass a user data pointer. Instead, you pass a user data
pointer to tox_iterate. This pointer is threaded through the code, passed to
each callback. The callback can modify the data pointed at. An extra indirection
will be needed if the pointer itself can change.
**Why?**
Currently, callbacks are registered with a user data pointer. This means the
library has N pointers for N different callbacks. These pointers need to be
managed by the client code. Managing the lifetime of the pointee can be
difficult. In C++, it takes special effort to ensure that the lifetime of user
data extends at least beyond the lifetime of the Tox instance. For other
languages, the situation is much worse. Java and other garbage collected
languages may move objects in memory, so the pointers are not stable. Tox4j goes
through a lot of effort to make the Java/Scala user experience a pleasant one by
keeping a global array of Tox+userdata on the C++ side, and communicating via
protobufs. A Haskell FFI would have to do similarly complex tricks.
Stateless callbacks ensure that a user data pointer only needs to live during a
single function call. This means that the user code (or language runtime) can
move the data around at will, as long as it sets the new location in the
callback.
**How?**
We are doing this change one callback at a time. After each callback, we ensure
that everything still works as expected. This means the toxcore change will
require 15 Pull Requests.
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Also, fix the hstox build that was taking half an hour. It now takes 5 minutes.
Also, perform distcheck on travis to ensure that make dist works. It's not
actually failing the build at the moment due to broken tests.
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We run astyle on Travis and check if there is a diff. The build terminates if
git finds a difference.
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> increased the timeout for TCP tests because per @irungentoo the network on Travis-CI can be slow sometimes
> allowed groupchats test to restart on error until timeout This had to be done because current groupchats are fundamentally broken and 3/5 times they'll 'net-split' on connect
>> Drop group chat tests, add comment to the reason
> added some debugging information to TCP tests, and a #define to force IPV6 (Travis-CI only uses IPv4 on their containers) and decreased the itr interval
> Went crazy with timeouts for Tox network stuff on Travis. Tests on TCP will still randomly fail due to timeouts. I can't reproduce on any local system. So again per @irungentoo, Travis is slow, let's offer it a short bus.
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Some of these (like the incompatible pointers one) are really annoying for
later refactoring.
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* Add #defines for INET/INET6 returns
* Remove magic number 3 - exact AF_INET/INET6 result found.
* Updated network_test.c
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