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9162
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1 #define _POSIX_C_SOURCE 199309L
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2
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3 #include <time.h>
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4 #include <lua.h>
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5
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6 lua_Number tv2number(struct timespec *tv) {
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7 return tv->tv_sec + tv->tv_nsec * 1e-9;
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8 }
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9
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10 int lc_time_realtime(lua_State *L) {
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11 struct timespec t;
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12 clock_gettime(CLOCK_REALTIME, &t);
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13 lua_pushnumber(L, tv2number(&t));
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14 return 1;
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15 }
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16
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9163
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17 int lc_time_monotonic(lua_State *L) {
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18 struct timespec t;
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19 clock_gettime(CLOCK_MONOTONIC, &t);
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20 lua_pushnumber(L, tv2number(&t));
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21 return 1;
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22 }
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23
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9162
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24 int luaopen_util_time(lua_State *L) {
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25 lua_createtable(L, 0, 2);
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26 {
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27 lua_pushcfunction(L, lc_time_realtime);
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28 lua_setfield(L, -2, "now");
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9163
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29 lua_pushcfunction(L, lc_time_monotonic);
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30 lua_setfield(L, -2, "monotonic");
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9162
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31 }
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32 return 1;
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33 }
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