prosody
a3d77353c18a
plugins/mod_posix.lua

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plugins/mod_posix.lua @ 1042:a3d77353c18a

mod_*: Fix a load of global accesses
author Matthew Wild <mwild1@gmail.com>
date Wed, 22 Apr 2009 21:32:23 +0100
parent 1033:4a9f0d482028
child 1050:9552c08241af
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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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6
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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 module: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 pidfile_written;
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18
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19 local function remove_pidfile()
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20 if pidfile_written then
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21 os.remove(pidfile_written);
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22 pidfile_written = nil;
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23 end
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24 end
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25
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26 local function write_pidfile()
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27 if pidfile_written then
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28 remove_pidfile();
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29 end
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30 local pidfile = config_get("*", "core", "pidfile");
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31 if pidfile then
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32 local pf, err = io.open(pidfile, "w+");
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33 if not pf then
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34 module:log("error", "Couldn't write pidfile; %s", err);
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35 else
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36 pf:write(tostring(pposix.getpid()));
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37 pf:close();
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38 pidfile_written = pidfile;
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39 end
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40 end
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41 end
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42
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43 local syslog_opened
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44 function syslog_sink_maker(config)
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45 if not syslog_opened then
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46 print("OPENING SYSLOOOOOOOOOG");
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47 pposix.syslog_open("prosody");
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48 syslog_opened = true;
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49 end
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50 local syslog, format = pposix.syslog_log, string.format;
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51 return function (name, level, message, ...)
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52 if ... then
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53 syslog(level, format(message, ...));
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54 else
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55 syslog(level, message);
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56 end
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57 end;
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58 end
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59 require "core.loggingmanager".register_sink_type("syslog", syslog_sink_maker);
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60
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61 if not config_get("*", "core", "no_daemonize") then
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62 local function daemonize_server()
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63 local ok, ret = pposix.daemonize();
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64 if not ok then
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65 module:log("error", "Failed to daemonize: %s", ret);
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66 elseif ret and ret > 0 then
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67 os.exit(0);
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68 else
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69 module:log("info", "Successfully daemonized to PID %d", pposix.getpid());
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70 write_pidfile();
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71 end
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72 end
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73 module:add_event_hook("server-starting", daemonize_server);
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74 else
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75 -- Not going to daemonize, so write the pid of this process
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76 write_pidfile();
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77 end
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78
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79 module:add_event_hook("server-stopped", remove_pidfile);
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80
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81 -- Set signal handler
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82 if signal.signal then
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83 signal.signal("SIGTERM", function ()
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84 module:log("warn", "Received SIGTERM...");
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85 _G.unlock_globals();
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86 if _G.prosody_shutdown then
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87 _G.prosody_shutdown("Received SIGTERM");
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88 else
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89 module:log("warn", "...no prosody_shutdown(), ignoring.");
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90 end
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91 _G.lock_globals();
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92 end);
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93 end