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We no longer allow `int a, b;`. In the few cases where we used it, we
instead better
* limit the scope of the identifier (e.g. in a for-init-decl)
* split the line and have 2 separate declarators, because the
identifiers designate different types of things (e.g. friend numbers
and group numbers).
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We no longer allow:
```c
int a = 0, b = 0;
int a[3], b[3];
int a, *b;
```
But we do still allow (for now):
```c
int a, b;
```
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Also changed their return type to bool instead of 1/0 ints.
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Tokstyle (check-cimple) will start enforcing comment formats at some
point. It will not support arbitrary stuff in comments, and will parse
them. The result can then be semantically analysed.
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Using ~0 involves a bitwise operation on int, so depends on
the internal representation of signed integers.
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When tox_kill is called no other thread should be running anymore so
this locking is not needed there.
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- Moving a pthread_mutex in memory (e.g. via realloc()) is undefined
behavior.
- add a state for allocated but not yet used crypto connections
- change crypto_connection_status signature
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This uses a trick to get read-write access to `this` from a `const`
member function, similar to C++ `mutable`, but uglier.
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Also adds a test (auto_reconnect_test) which fails without this change.
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This inverts the truthiness of the return value. Previously, 0 meant
`true` and -1 meant `false`. Now, `true` (1) means `true` and `false` (0)
means `false`.
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Reduced by, e.g.:
* `file_transfer_test`: 33% of the `clock_gettime` calls.
* `tox_many_test`: 53% of the `clock_gettime` calls.
Other tests will see similar improvements. Real world applications will
be closer to 40-50% improvement, since tox_many_test has 100 nodes, while
file_transfer_test has 2 nodes.
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send_lossless_packet()
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It turns out, `unix_time` is also monotonic, and is used as such, so I've
renamed the new functions to `mono_time_*`.
2018-07-08:
```
00:01 <@irungentoo> the idea used to be that the unix_time() function
could go backward in time but I think I might have started using it like
if it could not after I changed it so that it would never go back in time
```
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Also:
* compound statements (blocks, e.g. in if/else) must be non-empty.
Comments don't count.
* `=` is not allowed in subexpressions. We treat it as statement-only.
* `++i` is preferred over `i++` in statements.
* `Type_Names` are camelsnake-case.
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`BS_LIST` would be a constant. `BS_List` is a type name.
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Rules:
1. Constants are uppercase names: THE_CONSTANT.
2. SUE[1] types start with an uppercase letter and have at least one
lowercase letter in it: The_Type, THE_Type.
3. Function types end in "_cb": tox_friend_connection_cb.
4. Variable and function names are all lowercase: the_function.
This makes it easier for humans reading the code to determine what an
identifier means. I'm not convinced by the enum type name change, but I
don't know a better rule. Currently, a lot of enum types are spelled like
constants, which is confusing.
[1] struct/union/enum
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* Consistently use `num_packets_array` to get the packet count in the
packet buffer.
* Use `const` in more places.
* Typo fix: begginning.
* Rewrite `length < 1` for unsigned int to `length == 0`.
* Limit scope of some loop variables by using for-init-decl.
* Use early return in error paths to reduce indentation and for clarity.
* Use `net_unpack_*` instead of manual `ntohs`.
* Fix an uninitialised stack variable copy.
* Fix a potential null pointer dereference.
* Consistently use `get_crypto_connection`. It was inlined in some
places. I de-inlined it now.
* Add Loggers to some functions in preparation for adding log statements.
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In preparation for adding log statements.
Also, fix an uninitialised variable warning in cppcheck.
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It was a list of #defines, but clearly this is a discrete and limited set
of named values, so an enum is more appropriate.
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Fixes #868
Is made by:
1. Fix enumeration mechanism of Crypto_Connection instances in function send_crypto_packets()
(this item solves the main problem);
2. Disruption of correlation between parameters of different dimensions
(the parameters MAX_NUM_SENDPACKET_TRIES and UDP_DIRECT_TIMEOUT have different dimensions).
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The Family stuff in toxcore is a big mess. I'm sure I saw a bunch of bugs
on the way, but I'm not verifying that code now, so the bugs stay.
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DETECTED=cppcheck
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This changes only code, no string literals or comments.
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Also replace &(x) with &x for consistency.
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All other code in this file does lock/call/unlock, except this one
instance, so we should explain why.
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socket -> net_socket
htons -> net_htons
htonl -> net_htonl
connect -> net_connect
sendto -> net_sendto_ip4
getaddrinfo -> net_getipport
sa_family_t -> Family
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"All rights reserved" was incorrect. The project was licensed under GPL3,
which means a lot of rights are licensed to everybody in the world, i.e.
not reserved to the "Tox Project".
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