52 lines
1.3 KiB
Plaintext
52 lines
1.3 KiB
Plaintext
m4_comment([$Id: db_set_h_nelem.so,v 10.36 2004/09/28 15:04:19 bostic Exp $])
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define(M4PAGELOCAL, [dbh_set_h_nelem, dbh_get_h_nelem])
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include(m4/m4.seealso)
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m4_pf_header(m4_ref(dbh_set_h_nelem),
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ifelse(M4API, C_API, [dnl
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int
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DB-__GT__set_h_nelem(DB *db, u_int32_t h_nelem);
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m4_blank
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int
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DB-__GT__get_h_nelem(DB *db, u_int32_t *h_nelemp);
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])
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ifelse(M4API, CXX_API, [dnl
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int
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Db::set_h_nelem(u_int32_t h_nelem);
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m4_blank
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int
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Db::get_h_nelem(u_int32_t *h_nelemp);
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]))
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m4_p([dnl
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Set an estimate of the final size of the hash table.])
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m4_p([dnl
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In order for the estimate to be used when creating the database, the
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m4_ref(dbh_set_h_ffactor) method must also be called. If the estimate
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or fill factor are not set or are set too low, hash tables will still
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expand gracefully as keys are entered, although a slight performance
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degradation may be noticed.])
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m4_scope_db(dbh_set_h_nelem)
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m4_when_dbopen(dbh_set_h_nelem, ignored)
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m4_return(dbh_set_h_nelem, std)
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m4_parambegin
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m4_param(h_nelem, [dnl
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The m4_arg(h_nelem) parameter is an estimate of the final size of the
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hash table.])
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m4_paramend
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m4_err(dbh_set_h_nelem,
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einval, [the method was called after m4_ref(dbh_open) was called])
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m4_pf_getter(dbh_get_h_nelem,
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[estimate of the final size of the hash table],, h_nelemp)
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m4_seealso(Db)
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m4_page_footer
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