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It was an undefined function before.
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We'll revert this once we move to clang-format.
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It has not been built in a while. We do want to keep this one working (or at
least compiling).
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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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See #40 for details.
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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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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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Add a way to select the type of savedata (normal savedata, load a
secret key, potentially others?) to load.
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Renamed tox_file_send_seek to tox_file_seek.
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A couple of minor reasons, combined warrant a PR imo:
a) fileChunkRequested is a better signal name than fileRequestChunkReceived, and I don't want to break consistency by reordering words for just this signal
b) "request chunk" is parsed by English speakers as a verb-object combination,
implying sending the request, not receiving, whereas "chunk requested" is
parsed (more correctly) as an adjective-noun combo (in particular, request is
a noun not a verb), and thus reads far more like "hey heads up we just got a request"
For instance some tests/testing code had some callbacks to *receive* chunk requests, and they were called "tox_file_request_chunk"... to receive a chunk, not request it. Now they're called "tox_file_chunk_request".
So yeah...
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new_api
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messaging function.
This removes code duplication and allows us to easily add new message
types to the api without having to add new functions.
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friend_get_connection_status
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This is now documented in the API.
Ported programs in testing/ to this behaviour.
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receive to recv in file receive functions.
Added TOX_MAX_FILENAME_LENGTH define.
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file_id is a 32byte identifier that can be used by users to identify
file tranfers across core/client restarts in order to resume broken
file tranfers.
In avatar tranfers it corresponds to the hash of the avatar.
Added tox_file_get_file_id() function to api to obtain the file_id
of an ongoing file transfer.
If not set, core will generate a random one.
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This is done so that the function now has the same parameters as the
request chunk callback.
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