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The parameter names were taken from function definitions to update the names in
function declarations (prototypes).
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We'll revert this once we move to clang-format.
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Also, no longer #include the group code into tox.c. Instead, compile it
separately in tox_group.c. This is a bit less surprising to someone looking
around the code. Having some implementations in a .h file is certainly a bit
surprising to a disciplined C programmer, especially when there is no technical
reason to do it.
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These are now generated by apidsl.
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These functions simply return the constants. They are a stable ABI, so that if
constants change, the ABI of these functions won't. Code solely relying on these
functions will remain compatible with future values of those constants.
The functions are currently not exposed in tox.h, because this is pending a
change in apidsl to generate accessors for "const" values.
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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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The condition is a potential use after free, because `connection_kill` before it
will delete the `conn` that is dereferenced.
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uint is not a valid type on Windows. It's also not a valid type in C, but Linux
and OSX define it somewhere. We can't rely on its existence.
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Moved a few #defines to the top of the header for better readability
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See #40 for details.
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This behaviour is consistent with free() and operator delete.
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See #27 and #40 for details.
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- This PR also adds a DEBUG cmake option that enables -DTOX_DEBUG.
- We also remove `-Wall`, because there are too many warnings, and nobody really
looks at them at the moment. We'll see about fixing them soon. We'll also want
to enable `-Werror` at some point.
- Finally, this PR enables `-O3` to make sure toxcore still works correctly
under heavy compiler optimisations.
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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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We run astyle on Travis and check if there is a diff. The build terminates if
git finds a difference.
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sodium_init returns 1 when the library was already initialised. Toxcore code
wasn't prepared to handle sodium errors, so it thought it was an allocation
error.
This error is still not handled correctly. If crypto fails to initialise, it
will think it's an allocation error. Fixing this requires too many code changes,
so must be done later.
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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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Fixed bug from merged PR.
Don't build useless files when building with libsodium.
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fix: make increment_nonce & increment_nonce_number independent of user-controlled input
fix: make crypto_core more stable agains null ptr dereference
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