MySQL Bugs: #76694: Move the declaration of fil_node_t to a header file, and clean up comments

Bug #76694	Move the declaration of fil_node_t to a header file, and clean up comments
Submitted:	15 Apr 2015 5:21	Modified:	17 Apr 2015 18:37
Reporter:	Marko Mäkelä	Email Updates:
Status:	Closed	Impact on me:	None
Category:	MySQL Server: InnoDB Plugin storage engine	Severity:	S3 (Non-critical)
Version:	5.7.8	OS:	Any
Assigned to:		CPU Architecture:	Any

Description:
The definition of the data structure fil_node_t is private to fil0fil.cc.
Diagnostics code outside that module cannot access information about the files belonging to a tablespace without expensive copying.

How to repeat:
Read the code.

Suggested fix:
Move the definition of fil_node_t to fil0fil.h, where fil_space_t is already defined.
Also, feel free to clean up some function comments related to tablespaces and tablespace files.

Fixed as of the upcoming 5.7.8, 5.8.0 releases, and here's the changelog
entry:

The definition of the "fil_node_t" data structure was moved from
"fil0fil.cc" to "fil0fil.h" so that diagnostic code outside that module
can access information about files that belong to a tablespace.