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annotate third_party/luajit/src/lj_vmevent.c @ 178:94705b5986b3

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[ThirdParty] Added WRK and luajit for load testing.
author MrJuneJune <me@mrjunejune.com>
date Thu, 22 Jan 2026 20:10:30 -0800
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178
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
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1 /*
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2 ** VM event handling.
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3 ** Copyright (C) 2005-2023 Mike Pall. See Copyright Notice in luajit.h
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4 */
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5
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6 #include <stdio.h>
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7
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8 #define lj_vmevent_c
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9 #define LUA_CORE
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10
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11 #include "lj_obj.h"
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12 #include "lj_str.h"
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13 #include "lj_tab.h"
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14 #include "lj_state.h"
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15 #include "lj_dispatch.h"
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16 #include "lj_vm.h"
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17 #include "lj_vmevent.h"
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18
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19 ptrdiff_t lj_vmevent_prepare(lua_State *L, VMEvent ev)
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20 {
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21 global_State *g = G(L);
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22 GCstr *s = lj_str_newlit(L, LJ_VMEVENTS_REGKEY);
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23 cTValue *tv = lj_tab_getstr(tabV(registry(L)), s);
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24 if (tvistab(tv)) {
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25 int hash = VMEVENT_HASH(ev);
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26 tv = lj_tab_getint(tabV(tv), hash);
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27 if (tv && tvisfunc(tv)) {
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28 lj_state_checkstack(L, LUA_MINSTACK);
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29 setfuncV(L, L->top++, funcV(tv));
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30 if (LJ_FR2) setnilV(L->top++);
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31 return savestack(L, L->top);
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32 }
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33 }
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34 g->vmevmask &= ~VMEVENT_MASK(ev); /* No handler: cache this fact. */
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35 return 0;
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36 }
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37
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38 void lj_vmevent_call(lua_State *L, ptrdiff_t argbase)
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39 {
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40 global_State *g = G(L);
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41 uint8_t oldmask = g->vmevmask;
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42 uint8_t oldh = hook_save(g);
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43 int status;
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44 g->vmevmask = 0; /* Disable all events. */
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45 hook_vmevent(g);
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46 status = lj_vm_pcall(L, restorestack(L, argbase), 0+1, 0);
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47 if (LJ_UNLIKELY(status)) {
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48 /* Really shouldn't use stderr here, but where else to complain? */
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49 L->top--;
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50 fputs("VM handler failed: ", stderr);
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51 fputs(tvisstr(L->top) ? strVdata(L->top) : "?", stderr);
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52 fputc('\n', stderr);
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53 }
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54 hook_restore(g, oldh);
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55 if (g->vmevmask != VMEVENT_NOCACHE)
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56 g->vmevmask = oldmask; /* Restore event mask, but not if not modified. */
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57 }
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58