2 This file is part of GNUnet
3 (C) 2009, 2010 Christian Grothoff (and other contributing authors)
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6 it under the terms of the GNU General Public License as published
7 by the Free Software Foundation; either version 3, or (at your
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13 General Public License for more details.
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22 * @file monkey/gnunet_monkey_edb.h
23 * @brief Monkey API for accessing the Expression Database (edb)
26 #ifndef GNUNET_MONKEY_EDB_H
27 #define GNUNET_MONKEY_EDB_H
32 #if 0 /* keep Emacsens' auto-indent happy */
38 struct GNUNET_MONKEY_EDB_Context;
41 * Establish a connection to the Expression Database
43 * @param db_file_name path the Expression Database file
44 * @return context to use for Accessing the Expression Database, NULL on error
46 struct GNUNET_MONKEY_EDB_Context *GNUNET_MONKEY_EDB_connect (const char
51 * Disconnect from Database, and cleanup resources
53 * @param context context
54 * @return GNUNET_OK on success, GNUNET_NO on failure
56 int GNUNET_MONKEY_EDB_disconnect (struct GNUNET_MONKEY_EDB_Context *cntxt);
59 typedef int (*GNUNET_MONKEY_ExpressionIterator) (void *, int, char **,
64 * Run an SQLite query to retrieve those expressions that are previous to
65 * given expression and are in the same scope of the given expression
66 * For example, consider the following code snippet:
69 * struct Something whole; // line no.1
70 * struct SomethingElse part; // line no.2
71 * whole.part = ∂ // line no.3
72 * whole.part->member = 1; // line no.4
75 * If the expression supplied to the function is that of line no.4 "whole.part->member = 1;"
76 * The returned list of expressions will be: whole.part (line no.4), whole.part->member (line no.4),
77 * whole (line no.3), whole.part (line no.3), &part (line no.3), whole.part = &part (line no.3)
79 * @param cntxt context containing the Expression Database handle.
80 * @param file_name path to the file in which the expression in question exists
81 * @param start_line_no expression beginning line
82 * @param end_line_no line number for the expression's scope end
83 * @param iter callback function, iterator for expressions returned from the Database
84 * @param iter_cls closure for the expression iterator
85 * @return GNUNET_OK success, GNUNET_NO failure
88 GNUNET_MONKEY_EDB_get_expressions (struct GNUNET_MONKEY_EDB_Context *cntxt,
89 const char *file_name, int start_line_no,
91 GNUNET_MONKEY_ExpressionIterator iter,
96 #if 0 /* keep Emacsens' auto-indent happy */