Final answer:
The question relates to the expected contents of a header file and source code file for a reader-writer lock in C programming.
Step-by-step explanation:
The question refers to the structure and content of two files related to implementing a reader-writer lock in programming, specifically in C. The g_rw_lock.h file is expected to contain typedefs and function prototypes for the user callable functions to manage the lock. Meanwhile, the rw_lock.c file should contain the source code implementing these functions, along with any additional support routines necessary for the lock's functionality.