2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
4 * Copyright (c) 2002-2003 M. Warner Losh.
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8 * modification, are permitted provided that the following conditions
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
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14 * documentation and/or other materials provided with the distribution.
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19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
37 * var_list is a collection of variables. These collections of variables
38 * are stacked up and popped down for each event that we have to process.
39 * We have multiple levels so that we can push variables that are unique
40 * to the event in question, in addition to having global variables. This
41 * allows for future flexibility.
46 /** Set a variable in this var list.
48 void set_variable(const std::string &var, const std::string &val);
49 /** Get the variable out of this, and no other, var_list. If
50 * no variable of %var is set, then %bogus will be returned.
52 const std::string &get_variable(const std::string &var) const;
53 /** Is there a variable of %var set in this table?
55 bool is_set(const std::string &var) const;
56 /** A completely bogus string.
58 static const std::string bogus;
59 static const std::string nothing;
62 std::string fix_value(const std::string &val) const;
64 std::map<std::string, std::string> _vars;
68 * eps is short for event_proc_single. It is a single entry in an
69 * event_proc. Each keyword needs its own subclass from eps.
75 /** Does this eps match the current config?
77 virtual bool do_match(config &) = 0;
78 /** Perform some action for this eps.
80 virtual bool do_action(config &) = 0;
84 * match is the subclass used to match an individual variable. Its
87 class match : public eps
90 match(config &, const char *var, const char *re);
92 virtual bool do_match(config &);
93 virtual bool do_action(config &) { return true; }
102 * media is the subclass used to match an individual variable. Its
105 class media : public eps
108 media(config &, const char *var, const char *type);
110 virtual bool do_match(config &);
111 virtual bool do_action(config &) { return true; }
118 * action is used to fork a process. It matches everything.
120 class action : public eps
123 action(const char *cmd);
125 virtual bool do_match(config &) { return true; }
126 virtual bool do_action(config &);
135 virtual ~event_proc();
136 int get_priority() const { return (_prio); }
137 void set_priority(int prio) { _prio = prio; }
139 bool matches(config &) const;
140 bool run(config &) const;
143 std::vector<eps *> _epsvec;
149 config() { push_var_table(); }
150 virtual ~config() { reset(); }
151 void add_attach(int, event_proc *);
152 void add_detach(int, event_proc *);
153 void add_directory(const char *);
154 void add_nomatch(int, event_proc *);
155 void add_notify(int, event_proc *);
156 void set_pidfile(const char *);
159 void close_pidfile();
161 void write_pidfile();
162 void remove_pidfile();
163 void push_var_table();
164 void pop_var_table();
165 void set_variable(const char *var, const char *val);
166 const std::string &get_variable(const std::string &var);
167 const std::string expand_string(const char * var,
168 const char * prepend = NULL, const char * append = NULL);
169 char *set_vars(char *);
170 void find_and_execute(char);
172 void sort_vector(std::vector<event_proc *> &);
173 void parse_one_file(const char *fn);
174 void parse_files_in_dir(const char *dirname);
175 void expand_one(const char *&src, std::string &dst, bool is_shell);
176 std::string shell_quote(const std::string &s);
177 bool is_id_char(char) const;
178 bool chop_var(char *&buffer, char *&lhs, char *&rhs) const;
180 std::vector<std::string> _dir_list;
181 std::string _pidfile;
182 std::vector<var_list *> _var_list_table;
183 std::vector<event_proc *> _attach_list;
184 std::vector<event_proc *> _detach_list;
185 std::vector<event_proc *> _nomatch_list;
186 std::vector<event_proc *> _notify_list;