int
db_env_set_func_write(
ssize_t (*func_write)(int fd, const void *buffer, size_t nbytes));
Description
Replace Berkeley DB calls to the IEEE/ANSI Std 1003.1 (POSIX) write function
with func_write, which must conform to the standard interface.
The db_env_set_func_write interface affects the entire application, not a single
database or database environment.
While the db_env_set_func_write interface may be used to configure Berkeley DB at any time
during the life of the application, it should normally be called before
making any calls to the db_env_create or db_create functions.
The db_env_set_func_write function returns a non-zero error value on failure and 0 on success.