DBENV->set_func_write |
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#include <db.h>int DBENV->set_func_write(DB_ENV *dbenv, ssize_t (*func_write)(int fd, const void *buffer, size_t nbytes));
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 DBENV->set_func_write interface affects the entire application, not only the environment in which it is called.
The DBENV->set_func_write interface may only be used to configure Berkeley DB before the DBENV->open interface is called.
The DBENV->set_func_write function returns a non-zero error value on failure and 0 on success.
Called after DBENV->open was called.
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