I'm going to create a unified struct file that should be able to share
code between data and cache files. The first step is to push the old
structure to the side so it can still be used in other places.
Signed-off-by: Anna Schumaker <Anna@NoWheyCreamery.com>
This makes file versioning way easier, since every file will have the
same version. I'll still need to manage minimum-supported versions, but
that shouldn't be too difficult going forward.
Signed-off-by: Anna Schumaker <Anna@NoWheyCreamery.com>
I want to reuse as much file code as I can for cache files, but I need a
new struct since data and cache files track different properties.
Signed-off-by: Anna Schumaker <Anna@OcarinaProject.net>
I don't think it makes sense that callers of file_open() are expected to
check the file version after opening. This should be something handled
by the file code so we can print a consistent error message.
Implements issue #5: Better file versioning
Signed-off-by: Anna Schumaker <Anna@OcarinaProject.net>
And then rename the temporary file when closed. This protects users
data in case Ocarina gets killed.
Implements issue #31: Make file writes seem atomic
Signed-off-by: Anna Schumaker <Anna@OcarinaProject.net>
I'm only setting this to a static string, so it doesn't make sense to
store this as a char array. Let's use a string pointer instead.
Signed-off-by: Anna Schumaker <Anna@OcarinaProject.net>
I eventually intend to remove the file_init() function, once everything
has been converted to C.
Signed-off-by: Anna Schumaker <Anna@OcarinaProject.net>
I also introduced a file_readf() function to make it easier to read a
formatted string from the file.
Signed-off-by: Anna Schumaker <Anna@OcarinaProject.net>
I also introduced a file_writef() function to make it easier to write a
formatted string to the file.
Signed-off-by: Anna Schumaker <Anna@OcarinaProject.net>
And replace it with the function file_init(). Let's take this chance to
rework parts of the unit test as well.
Signed-off-by: Anna Schumaker <Anna@OcarinaProject.net>
This change also lets me remove the destructor, since code is expected
to call file_close() when IO is complete.
Signed-off-by: Anna Schumaker <Anna@OcarinaProject.net>
I add more detailed documentation matching what was in my DESIGN file.
In addition, I also prefix private File members with an underscore like
I do in other Ocarina classes.
Signed-off-by: Anna Schumaker <Anna@OcarinaProject.net>
I plan to introduce a new lib/ that sits between the gui and the backend
files (similar to how glibc sits between the kernel and userspace).
This gets the rename out of the way before I change my mind again.
Signed-off-by: Anna Schumaker <Anna@OcarinaProject.net>