Collaboration diagram for File Lock Types:
|
Defines | |
| #define | APR_FLOCK_SHARED 1 |
| #define | APR_FLOCK_EXCLUSIVE 2 |
| #define | APR_FLOCK_TYPEMASK 0x000F |
| #define | APR_FLOCK_NONBLOCK 0x0010 |
Define Documentation
| #define APR_FLOCK_EXCLUSIVE 2 |
Exclusive lock. Only one process may hold an exclusive lock at any given time. This is analogous to a "write lock".
Definition at line 188 of file apr_file_io.h.
| #define APR_FLOCK_NONBLOCK 0x0010 |
do not block while acquiring the file lock
Definition at line 194 of file apr_file_io.h.
| #define APR_FLOCK_SHARED 1 |
Shared lock. More than one process or thread can hold a shared lock at any given time. Essentially, this is a "read lock", preventing writers from establishing an exclusive lock.
Definition at line 182 of file apr_file_io.h.
| #define APR_FLOCK_TYPEMASK 0x000F |
mask to extract lock type
Definition at line 193 of file apr_file_io.h.
