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DB_ENV->set_mp_max_openfd

API Ref

#include <db.h>

int DB_ENV->set_mp_max_openfd(DB_ENV *env, int maxopenfd);

int DB_ENV->get_mp_max_openfd(DB_ENV *env, int *maxopenfdp);


Description: DB_ENV->set_mp_max_openfd

The DB_ENV->set_mp_max_openfd method limits the number of file descriptors the library will open concurrently when flushing dirty pages from the cache.

The DB_ENV->set_mp_max_openfd method returns a non-zero error value on failure and 0 on success.

Parameters

maxopenfd
The maximum number of file descriptors that may be concurrently opened by the library when flushing dirty pages from the cache.

Errors

The DB_ENV->set_mp_max_openfd method may fail and return one of the following non-zero errors:

EINVAL
An invalid flag value or parameter was specified.

Description: DB_ENV->get_mp_max_openfd

The DB_ENV->get_mp_max_openfd method returns the maximum number of file descriptors open.

The DB_ENV->get_mp_max_openfd method may be called at any time during the life of the application.

The DB_ENV->get_mp_max_openfd method returns a non-zero error value on failure and 0 on success.

Parameters

maxopenfdp
The DB_ENV->get_mp_max_openfd method returns the maximum number of file descriptors open in maxopenfdp.

Class

DB_ENV, DB_MPOOLFILE

See Also

Memory Pools and Related Methods

APIRef

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