The type represents byte sizes used for configuring buffers and file
sizes. The supported suffixes for binary units are k, m, g and t in both
upper and lower case.
If the enums are converted to the acutual enum values before they are
returned, this removes the need for the modules to process the enum
strings to enum values. This allows modules to use enumerations with
minimal effort.
The MXS_MODULDE object now contains optinal pointers for functions
to be called att process and thread startup and shutdown. Since the
functions were added to the end, strictly speaking, all structures
would not have needed to have been modified, but better to be
explicit. In a subsequent change, these will be called.
C++ does not support flexible arrays, so for the time being C++
modules are restricted to 10 parameters. Better approach is to
factor out the parameters to a separate array and then just store
a pointer to that array in MXS_MODULE.
The path type is validated if the module requested path
validation. Service checks can be done both on startup and at
runtime. This allows dynamic changes to module parameters to be validated
without a configuration context.
The options allow the modules to impose type specific restrictions on the
parameters. This can be used to offload file permission and mandatory
parameter checks to the core.
The MXS_MODULE structure now contains a member for parameters. This can be
used by the modules to declare accepted parameters, their types and the
default values. Currently only count, integer, boolean, string and enum
values are supported.
The MODULE_INFO is now the main object which is used by modules to convey
information to the MaxScale core. The MXS_MODULE name is more apt as it
now contains the actual module definition.
The old MODULES structure was moved into load_utils.c as an internal
implementation and was renamed so that it is not confused with the new
MODULE structure.
The modules are now declared with a common macro. This allows future
additions to the module loading process while also making the loaded
symbol name a constant.
This allows modules to only expose one entry point with a consistent
signature. In the future, this could be used to implement declarations of
module parameters.
- All now include maxscale/cdefs.h as the very first file.
- MXS_[BEGIN|END]_DECLS added to all C-headers.
Strictly speaking not necessary for private headers, but
does not hurt either.
- Include guards moved to the very top of the file.
- #pragma once added.
- Headers now to be included as <maxscale/xyz.h>
- First step, no cleanup of headers has been made. Only moving
from one place to another + necessary modifications.
