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< p > Library Version 11.2.5.2< / p >
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< th colspan = "3" align = "center" > DbEnv::memp_fcreate()< / th >
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The DbMpoolFile Handle
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< h2 class = "title" style = "clear: both" > < a id = "mempfcreate" > < / a > DbEnv::memp_fcreate()< / h2 >
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< pre class = "programlisting" > #include < db_cxx.h>
int
DbEnv::memp_fcreate(DbMpoolFile **dbmfp, u_int32_t flags);< / pre >
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The < code class = "methodname" > DbEnv::memp_fcreate()< / code > method creates a
< a class = "link" href = "memp.html" title = "Chapter > DbMpoolFile< / a > structure that is the handle for a Berkeley DB
cache (that is, a shared memory buffer pool file). A pointer to this structure is returned in the memory to
which < span class = "bold" > < strong > dbmfp< / strong > < / span > refers. Calling the
< a class = "xref" href = "mempfclose.html" title = "DbMpoolFile::close()" > DbMpoolFile::close()< / a > method will discard the returned handle.
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The < code class = "methodname" > DbEnv::memp_fcreate()< / code > < span >
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method either returns a non-zero error value or throws an
exception that encapsulates a non-zero error value on
failure, and returns 0 on success.
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< h3 class = "title" > < a id = "id3624594" > < / a > Parameters< / h3 >
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< h4 class = "title" > < a id = "id3624583" > < / a > dbmfp< / h4 >
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The < code class = "methodname" > DbEnv::memp_fcreate()< / code >
method returns a pointer to a mpool structure in
< span class = "bold" > < strong > dbmfp< / strong > < / span > .
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< h4 class = "title" > < a id = "id3624658" > < / a > flags< / h4 >
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The < span class = "bold" > < strong > flags< / strong > < / span > parameter is currently
unused, and must be set to 0.
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< a class = "xref" href = "memp.html#memplist" title = "Memory Pools and Related Methods" > Memory Pools and Related Methods< / a >
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