prosody
820995fbb7cf
plugins/mod_posix.lua

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plugins/mod_posix.lua @ 1022:820995fbb7cf

Merge with 0.4.1
author Matthew Wild <mwild1@gmail.com>
date Tue, 21 Apr 2009 20:31:12 +0100
parent 991:cd0d75de8345
child 1032:409f22d0430f
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fa45dfb27ee5 mod_posix: Check version of pposix
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1
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2 local want_pposix_version = "0.3.0";
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3
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4 local pposix = assert(require "util.pposix");
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5 if pposix._VERSION ~= want_pposix_version then module:log("warn", "Unknown version (%s) of binary pposix module, expected %s", tostring(pposix._VERSION), want_pposix_version); end
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7 local signal = select(2, pcall(require, "util.signal"));
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8 if type(signal) == "string" then
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9 log("warn", "Couldn't load signal library, won't respond to SIGTERM");
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10 end
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11
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12 local config_get = require "core.configmanager".get;
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13 local logger_set = require "util.logger".setwriter;
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14
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15 module.host = "*"; -- we're a global module
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16
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17 local function write_pidfile()
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18 local pidfile = config.get("*", "core", "pidfile");
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19 if pidfile then
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20 local pf, err = io.open(pidfile, "w+");
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21 if not pf then
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22 log("error", "Couldn't write pidfile; %s", err);
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23 else
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24 pf:write(tostring(pposix.getpid()));
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25 pf:close();
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26 end
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27 end
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28 end
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30 local logfilename = config_get("*", "core", "log");
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31 if logfilename == "syslog" then
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32 pposix.syslog_open("prosody");
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33 pposix.syslog_setminlevel(config.get("*", "core", "minimum_log_level") or "info");
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34 local syslog, format = pposix.syslog_log, string.format;
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35 logwriter = function (name, level, message, ...)
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36 if ... then
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37 syslog(level, format(message, ...));
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38 else
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39 syslog(level, message);
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40 end
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41 end;
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42 elseif logfilename then
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43 local logfile = io.open(logfilename, "a+");
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44 if logfile then
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45 local write, format, flush = logfile.write, string.format, logfile.flush;
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46 logwriter = function (name, level, message, ...)
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47 if ... then
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48 write(logfile, name, "\t", level, "\t", format(message, ...), "\n");
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49 else
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50 write(logfile, name, "\t" , level, "\t", message, "\n");
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51 end
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52 flush(logfile);
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53 end;
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54 end
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55 else
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56 log("debug", "No logging specified, will continue with default");
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57 end
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58
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59 if logwriter then
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60 local ok, ret = logger_set(logwriter);
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61 if not ok then
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62 log("error", "Couldn't set new log output: %s", ret);
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63 end
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64 end
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65
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66 if not config_get("*", "core", "no_daemonize") then
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67 local function daemonize_server()
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68 local logwriter;
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69
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70
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71 local ok, ret = pposix.daemonize();
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72 if not ok then
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73 log("error", "Failed to daemonize: %s", ret);
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74 elseif ret and ret > 0 then
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75 os.exit(0);
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76 else
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77 log("info", "Successfully daemonized to PID %d", pposix.getpid());
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78 write_pidfile();
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79 end
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80 end
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81 module:add_event_hook("server-starting", daemonize_server);
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82 else
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83 write_pidfile();
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84 -- Not going to daemonize, but let's write the pidfile anyway
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85 end
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86
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87 -- Set signal handler
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88 if signal.signal then
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89 signal.signal("SIGTERM", function ()
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90 log("warn", "Received SIGTERM...");
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91 unlock_globals();
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92 if prosody_shutdown then
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93 prosody_shutdown("Received SIGTERM");
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94 else
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95 log("warn", "...no prosody_shutdown(), ignoring.");
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96 end
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97 lock_globals();
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98 end);
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99 end