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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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Presumably the uses of `rand()` were fine because they were not used in
security-sensitive places, but having to think about whether a crappy RNG
is acceptable in each situation requires effort that could better be
spent elsewhere.
Also, this means that once we have a custom deterministic RNG for
testing, that RNG is used everywhere, so all the code is deterministic.
It also allowed us to delete a system-specific function that wasn't used
anywhere except in a call to `srand()`.
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All for-loops in toxcore are of the form
for (<for-init>; <for-cond>; <for-next>) { <body> }
`for-init` can be a variable declaration (like `int i = 0`), an
assignment (like `i = 0`), or empty.
`for-cond` can be any expression.
`for-next` can be an assignment or a single increment/decrement
expression (like `++i` or `--i`).
No other forms are allowed, so e.g. comma expressions in any of these are
not allowed (so no `for (i = 0, j = n; ...; ++i, --j)`).
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* Moved PAIR to toxav, where it's used (but really this should die).
* Replace most MIN calls with typed `min_*` calls. Didn't replace the
ones where the desired semantics are unclear. Moved the MIN macro to
the one place where it's still used.
* Avoid assignments in `while` loops. Instead, factored out the loop body
into a separate `bool`-returning function.
* Use named types for callbacks (`_cb` types).
* Avoid assignments in `if` conditions.
* Removed `MAKE_REALLOC` and expanded its two calls. We can't have
templates in C, and this fake templating is ugly and hard to analyse
and debug (it expands on a single line).
* Moved epoll system include to the .c file, out of the .h file.
* Avoid assignments in expressions (`a = b = c;`).
* Avoid multiple declarators per struct member declaration.
* Fix naming inconsistencies.
* Replace `net_to_host` macro with function.
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* Removed `ARRAY_SIZE` and use NULL markers for end of array, instead.
The alternative is + size, but for these arrays, NULL markers made
sense, since they are arrays of non-null pointers.
* Made `INDEX_OF_PK` a self-contained macro, not dependent upon the
naming inside its call site. This is a minor change but makes the code
more local and reviews easier.
* No nested structs.
* Use only named function types ending in `_cb` for callbacks.
* Replaced two macros with functions.
* `++i` instead of `i++`.
* struct member names start with lowercase letters.
* It takes a bit of work to support `/**/` comments in preprocessor
macros, so I've decided not to support these. If a macro is complex
enough to need comments inside it, it's too complex. `//` comments are
allowed at the end of macro definitions.
* Callback typedefs must name their parameters.
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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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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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In preparation for adding log statements.
Also, fix an uninitialised variable warning in cppcheck.
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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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This changes only code, no string literals or comments.
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https://www.freebsd.org/cgi/man.cgi?alloca
If stdlib.h does not define alloca, and we're using GCC (or Clang), we
define the macro ourselves in terms of a GCC builtin.
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These will be needed for new group chats.
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The ping.api.h file looks rather ugly, but it works. This is an exercise
in finding the complete set of use cases needed from apidsl for toxcore.
We'll try to make things work as much as possible, and then make apidsl
better and make the .api.h files pretty.
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Also replace &(x) with &x for consistency.
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To make 'client_or_ip_port_in_list' code easy to read
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Return value of 'addto_list' function is 'used' counter, which is uint32_t.
It will be better to use the same return type.
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- Replace 'for' with long body
- Replace friend_number function on index_of_friend_pk
- Replace client_in_nodelist on index_of_node_pk
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This requires that every symbol, even if static (file-scope), is unique.
The idea is that we can easily run "whole" program static analysis on
programs that include monolith.h ("whole" is in quotes, as we don't
include dependencies like libsodium in this static analysis).
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fix index bounds check in add_to_close() and is_pk_in_close_list()
add TODO to write test for bug which fixed by this commit
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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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