FTAM/9000 Programmer's Guide

110 Chapter 3
HP FTAM/9000 Data Structures
Ft_concurrency_control
Concurrency locks define whether users can simultaneously access a file.
Ft_concurrency_control specifies the type of available concurrency locks
for each action on a file.
Each value is of type enum Ft_file_lock which specifies the type of
concurrency locks on a file.
Setting allowable file actions and locks requires that you follow a few
rules. Familiarize yourself with struct Ft_concurrency_control and enum
Ft_file_lock, and then review the rules in the “Rules for
Ft_concurrency_control” section.
Ft_concurrency_control Is
Input To These Functions
Ft_concurrency_control Is
Output From These Functions
ft_create()
ft_fcopy()
ft_fcattributes()
ft_fdelete()
ft_fmove()
ft_fopen()
ft_frattributes()
ft_open()
ft_select()
ft_fopen()
ft_open()
Change Attribute
Delete File
Erase
Extend
Insert
Read
Read Attribute
Replace