mod_posix: Move everything to util.startup
This allows greater control over the order of events.
Notably, the internal ordering between daemonization, initialization of
libunbound and setup of signal handling is sensitive.
libunbound starts a separate thread for processing DNS requests.
If this thread is started before signal handling has been set up, it
will not inherit the signal handlers and instead behave as it would have
before signal handlers were set up, i.e. cause the whole process to
immediately exit.
libunbound is usually initialized on the first DNS request, usually
triggered by an outgoing s2s connection attempt.
If daemonization happens before signals have been set up, signals may
not be processed at all.
#ifndef _POSIX_C_SOURCE
#define _POSIX_C_SOURCE 200809L
#endif
#include <time.h>
#include <lua.h>
static lua_Number tv2number(struct timespec *tv) {
return tv->tv_sec + tv->tv_nsec * 1e-9;
}
static int lc_time_realtime(lua_State *L) {
struct timespec t;
clock_gettime(CLOCK_REALTIME, &t);
lua_pushnumber(L, tv2number(&t));
return 1;
}
static int lc_time_monotonic(lua_State *L) {
struct timespec t;
clock_gettime(CLOCK_MONOTONIC, &t);
lua_pushnumber(L, tv2number(&t));
return 1;
}
int luaopen_prosody_util_time(lua_State *L) {
lua_createtable(L, 0, 2);
{
lua_pushcfunction(L, lc_time_realtime);
lua_setfield(L, -2, "now");
lua_pushcfunction(L, lc_time_monotonic);
lua_setfield(L, -2, "monotonic");
}
return 1;
}
int luaopen_util_time(lua_State *L) {
return luaopen_prosody_util_time(L);
}