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ITS#7196 use IOV_MAX if it's defined and small

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This commit is contained in:
Howard Chu 2012-03-02 17:26:49 -08:00
parent b23bb7a0b1
commit 1b07b48c1a
1 changed files with 4 additions and 0 deletions
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4
libraries/libmdb/mdb.c
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@ -947,6 +947,10 @@ struct MDB_env {
};
/** max number of pages to commit in one writev() call */
#define MDB_COMMIT_PAGES 64
#if defined(IOV_MAX) && IOV_MAX < MDB_COMMIT_PAGES
#undef MDB_COMMIT_PAGES
#define MDB_COMMIT_PAGES IOV_MAX
#endif
static MDB_page *mdb_page_alloc(MDB_cursor *mc, int num);
static MDB_page *mdb_page_new(MDB_cursor *mc, uint32_t flags, int num);