81 lines
2.2 KiB
C
81 lines
2.2 KiB
C
/* Copyright (C) CZ.NIC, z.s.p.o. <knot-resolver@labs.nic.cz>
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* SPDX-License-Identifier: GPL-3.0-or-later
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*/
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#include "daemon/bindings/impl.h"
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static inline double getseconds(uv_timeval_t *tv)
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{
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return (double)tv->tv_sec + 0.000001*((double)tv->tv_usec);
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}
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/** Return worker statistics. */
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static int wrk_stats(lua_State *L)
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{
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struct worker_ctx *worker = the_worker;
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if (!worker) {
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return 0;
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}
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lua_newtable(L);
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lua_pushnumber(L, worker->stats.queries);
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lua_setfield(L, -2, "queries");
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lua_pushnumber(L, worker->stats.concurrent);
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lua_setfield(L, -2, "concurrent");
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lua_pushnumber(L, worker->stats.dropped);
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lua_setfield(L, -2, "dropped");
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lua_pushnumber(L, worker->stats.timeout);
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lua_setfield(L, -2, "timeout");
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lua_pushnumber(L, worker->stats.udp);
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lua_setfield(L, -2, "udp");
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lua_pushnumber(L, worker->stats.tcp);
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lua_setfield(L, -2, "tcp");
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lua_pushnumber(L, worker->stats.tls);
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lua_setfield(L, -2, "tls");
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lua_pushnumber(L, worker->stats.ipv4);
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lua_setfield(L, -2, "ipv4");
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lua_pushnumber(L, worker->stats.ipv6);
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lua_setfield(L, -2, "ipv6");
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lua_pushnumber(L, worker->stats.err_udp);
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lua_setfield(L, -2, "err_udp");
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lua_pushnumber(L, worker->stats.err_tcp);
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lua_setfield(L, -2, "err_tcp");
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lua_pushnumber(L, worker->stats.err_tls);
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lua_setfield(L, -2, "err_tls");
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lua_pushnumber(L, worker->stats.err_http);
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lua_setfield(L, -2, "err_http");
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/* Add subset of rusage that represents counters. */
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uv_rusage_t rusage;
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if (uv_getrusage(&rusage) == 0) {
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lua_pushnumber(L, getseconds(&rusage.ru_utime));
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lua_setfield(L, -2, "usertime");
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lua_pushnumber(L, getseconds(&rusage.ru_stime));
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lua_setfield(L, -2, "systime");
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lua_pushnumber(L, rusage.ru_majflt);
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lua_setfield(L, -2, "pagefaults");
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lua_pushnumber(L, rusage.ru_nswap);
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lua_setfield(L, -2, "swaps");
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lua_pushnumber(L, rusage.ru_nvcsw + rusage.ru_nivcsw);
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lua_setfield(L, -2, "csw");
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}
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/* Get RSS */
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size_t rss = 0;
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if (uv_resident_set_memory(&rss) == 0) {
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lua_pushnumber(L, rss);
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lua_setfield(L, -2, "rss");
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}
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return 1;
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}
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int kr_bindings_worker(lua_State *L)
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{
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static const luaL_Reg lib[] = {
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{ "stats", wrk_stats },
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{ NULL, NULL }
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};
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luaL_register(L, "worker", lib);
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return 1;
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}
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