1 /* Copyright (C) 2007 Board of Trustees, Leland Stanford Jr. University.
3 * Permission is hereby granted, free of charge, to any person obtaining a copy
4 * of this software and associated documentation files (the "Software"), to
5 * deal in the Software without restriction, including without limitation the
6 * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
7 * sell copies of the Software, and to permit persons to whom the Software is
8 * furnished to do so, subject to the following conditions:
10 * The above copyright notice and this permission notice shall be included in
11 * all copies or substantial portions of the Software.
13 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
14 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
15 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
16 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
17 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
18 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
27 /* Logging importance levels. */
36 const char *vlog_get_level_name(enum vlog_level);
37 enum vlog_level vlog_get_level_val(const char *name);
39 /* Facilities that we can log to. */
47 const char *vlog_get_facility_name(enum vlog_facility);
48 enum vlog_facility vlog_get_facility_val(const char *name);
50 /* Modules that can emit log messages. */
51 #define VLOG_MODULES \
53 VLOG_MODULE(controller) \
54 VLOG_MODULE(controller_connection) \
55 VLOG_MODULE(ctlpath) \
56 VLOG_MODULE(datapath) \
62 VLOG_MODULE(netlink) \
63 VLOG_MODULE(poll_loop) \
64 VLOG_MODULE(secchan) \
66 VLOG_MODULE(socket_util) \
67 VLOG_MODULE(vconn_netlink) \
68 VLOG_MODULE(vconn_tcp) \
69 VLOG_MODULE(vconn_ssl) \
72 /* VLM_ constant for each vlog module. */
74 #define VLOG_MODULE(NAME) VLM_##NAME,
81 const char *vlog_get_module_name(enum vlog_module);
82 enum vlog_module vlog_get_module_val(const char *name);
84 /* Configuring how each module logs messages. */
85 enum vlog_level vlog_get_level(enum vlog_module, enum vlog_facility);
86 void vlog_set_levels(enum vlog_module, enum vlog_facility, enum vlog_level);
87 char *vlog_set_levels_from_string(const char *);
88 char *vlog_get_levels(void);
89 void vlog_set_verbosity(const char *arg);
91 /* Function for actual logging. */
94 void vlog(enum vlog_module, enum vlog_level, const char *format, ...)
95 __attribute__((format(printf, 3, 4)));
97 /* Convenience macros. To use these, define THIS_MODULE as a macro that
98 * expands to the module used by the current source file, e.g.
100 * #define THIS_MODULE VLM_NETLINK
101 * Guaranteed to preserve errno.
103 #define VLOG_EMER(...) vlog(THIS_MODULE, VLL_EMER, __VA_ARGS__)
104 #define VLOG_ERR(...) vlog(THIS_MODULE, VLL_ERR, __VA_ARGS__)
105 #define VLOG_WARN(...) vlog(THIS_MODULE, VLL_WARN, __VA_ARGS__)
106 #define VLOG_DBG(...) vlog(THIS_MODULE, VLL_DBG, __VA_ARGS__)