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Only free malloc'd cursors

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This commit is contained in:
Howard Chu 2011-09-21 16:06:52 -07:00
parent b9d13a29e6
commit 9bcc51ef5d
1 changed files with 9 additions and 4 deletions
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13
libraries/libmdb/mdb.c
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@ -790,7 +790,8 @@ struct MDB_cursor {
#define C_INITIALIZED 0x01 /**< cursor has been initialized and is valid */
#define C_EOF 0x02 /**< No more data */
#define C_SUB 0x04 /**< Cursor is a sub-cursor */
#define C_SHADOW 0x08 /**< Cursor is a dup from a parent txn */
#define C_SHADOW 0x08 /**< Cursor is a dup from a parent txn */
#define C_ALLOCD 0x10 /**< Cursor was malloc'd */
/** @} */
unsigned int mc_flags; /**< @ref mdb_cursor */
MDB_page *mc_pg[CURSOR_STACK]; /**< stack of pushed pages */
@ -1316,7 +1317,8 @@ mdb_cursor_merge(MDB_txn *txn)
m2->mc_ki[j] = mc->mc_ki[j];
}
}
free(mc);
if (mc->mc_flags & C_ALLOCD)
free(mc);
}
}
}
@ -1517,7 +1519,8 @@ mdb_txn_reset0(MDB_txn *txn)
MDB_cursor *mc;
while ((mc = txn->mt_cursors[i])) {
txn->mt_cursors[i] = mc->mc_next;
free(mc);
if (mc->mc_flags & C_ALLOCD)
free(mc);
}
}
}
@ -4620,6 +4623,7 @@ mdb_cursor_open(MDB_txn *txn, MDB_dbi dbi, MDB_cursor **ret)
mc->mc_next = txn->mt_cursors[dbi];
txn->mt_cursors[dbi] = mc;
}
mc->mc_flags |= C_ALLOCD;
} else {
return ENOMEM;
}
@ -4664,7 +4668,8 @@ mdb_cursor_close(MDB_cursor *mc)
if (*prev == mc)
*prev = mc->mc_next;
}
free(mc);
if (mc->mc_flags & C_ALLOCD)
free(mc);
}
}