Previously, logging macros (info! warn! error!) accepted integer
argument (data1), that was passed to callback function verbatim. In all
call sites this argument was 0.
With this change, that data1 argument is no longer part of macro
interface, 0 is always passed to callback in internals of these macros.
The function is made safe and now returns Result. Functionally it now
fails when it can not write the newly generated key to the database
whereas before it still returned the key but logged a warning. There
is no reason this shouldn't be able to store the key and silently not
storing the key may result in later operations assuming the key is
available, so failing seems like a better choice.
The function now also uses a proper mutex to guard against multiple
threads generating keys. And this mutex is Context-scoped rather than
fully global (static).
This removes the dc_context_unref function from the Rust API which was
just an alias for dc_close. It still exists on the C API where it
makes sure to free the memory.
It also implements Drop for the context which just calls dc_close to
make sure all the memory is freed. Since you can call dc_close as
many times as you like this ensures that at the Rust level you can't
Drop the struct without releasing the memory.
Finally since memory is now freed by dropping the struct this removes
the #[repr(C)] for the struct. This struct is fully opaque to the C
API.
* refactor(contact): rename and rusty memory allocations
* refactor(contact): use enum to indidcate origin
* refactor(contact): safe blocking and unblocking api
* refactor(contact): only safe and no more cstrings
Add a trait for str.strdup() to replace to_cstring() which avoid the
signature ambiguity with .to_string().
Also instruduce CString::yolo() as a shortcut to
CString::new().unwrap() and use it whenever the variable does can be
deallocated by going out of scope. This is less error prone.
Use some Path.to_c_string() functions where possible.
This change removes global override of `non_shake_case' warning and replaces it
with per-function overrrides. This way, compiler will complain about style
guide violation in new code.
It should be noted, that `rustc' is not smart enough to emit warning when
override is no longer needed, it must be checked manually.
dc_location_t is an incomplete copy of _dc_location
The difference is that it lacks `int independent` field.
As a result, calloc did not allocate memory for this field.
deltachat-core (C version) has only one dc_location_t, that includes the last field.
For a few of the locations where error handling is done correctly this
does the right thing. For most other places it gracefully ignores any
issues which is what the original code did as well. Errors are
already logged by the called functions in those cases.
* refactor: safe sql access
* Clean up the worst rebase mistakes
* Some more progress on the rebase fallout and this branch
* upgrade and compile again
* cleanup from rebase
* example of how to prepare now
* rebase fixes
* add sql.query_map
* less preparation
* more improvements in sql code
* fix string truncation
* more prepare conversions
* most prep done
* fix tests
* fix ffi
* fix last prepares
* fix segfaults and some queries
* use r2d2 pool
* fix dc_job sql call, to reduce contention
* try newer rust
* No more vararg printing (drop dc_log_)
* ignore expected errors
* fix: uses exists instead of execute where needed
* fix: get_contacts logic was broken
* fix: contact creation
* test on 32bit linux
* ci: try running 32bit without cross
* undo 32bit tests
* refactor: rename dc_sqlite3 to sql
* fix: safer string conversions
* more string fixes
* try fixing appveyor build to 64bit
* chore(ci): hardcode target
* chore(ci): appveyor
* some cleanup work
* try fix darwin
* fix and improve sql escaping
* fix various bugs
* fix chat deletion
* refactor: cleanup config values and move to their own file
* refactor: move more methods onto the sql struct
* dont panic on failed state loading
* first round of cr
* one more cr fix
* stop using strange defaults
* remove unused escapes
Experiment with refactoring the internal sql interface a bit. My
original goal was to modify the schema and thus refactor to a state
where it would be sane to write tests for dc_sqlite_open() (and/or
however it ends up refactored) to assert schame changes before/after.
The C API allows passing a NULL pointer is for the callback function.
However when calling the callback nothing checks for this null pointer
and thus things fail badly. Even worse since the C API is defined
using an "fn pointer" rather than a "*-ptr" or raw pointer to the
function rust does not realise this can be invalid and therefore the
typechecker does not catch this even though there are no unsafe casts.
Fix this by making the callback an Option in rust, this can be easily
checked when calling. Also add a Context.call_cb() function which
simplifies calling the callback, hides the weird syntax due to the
function pointer and makes the call a little easier. Finally it also
means the option checking is only needed in one place.
For the C API this needs to check if this is a NULL pointer or not,
this is implicitly done by rust using the "nullable pointer
optimisation":
https://doc.rust-lang.org/nomicon/ffi.html#the-nullable-pointer-optimization
