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annotate third_party/luajit/src/lj_cdata.h @ 279:b3b547563ec7

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Add Google connector service and agent wiki Implement the C/Seobeo Google Drive and Gmail connector with encrypted OAuth storage, Zenbu authentication, browser testing, AI tool discovery, chunked HTTP decoding, and Bazel coverage. Consolidate repository guidance into progressive wiki documentation and enforce arena-first allocation for new first-party C code. Co-authored-by: Copilot <[email protected]> Copilot-Session: 84c338fd-0939-4bb3-b7f3-1062eb213e5d
author MrJuneJune <me@mrjunejune.com>
date Mon, 17 Aug 2026 22:22:36 -0700
parents 94705b5986b3
children
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178
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1 /*
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2 ** C data management.
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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 #ifndef _LJ_CDATA_H
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7 #define _LJ_CDATA_H
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8
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9 #include "lj_obj.h"
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10 #include "lj_gc.h"
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11 #include "lj_ctype.h"
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12
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13 #if LJ_HASFFI
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14
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15 /* Get C data pointer. */
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16 static LJ_AINLINE void *cdata_getptr(void *p, CTSize sz)
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17 {
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18 if (LJ_64 && sz == 4) { /* Support 32 bit pointers on 64 bit targets. */
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19 return ((void *)(uintptr_t)*(uint32_t *)p);
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20 } else {
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21 lj_assertX(sz == CTSIZE_PTR, "bad pointer size %d", sz);
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22 return *(void **)p;
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23 }
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24 }
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25
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26 /* Set C data pointer. */
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27 static LJ_AINLINE void cdata_setptr(void *p, CTSize sz, const void *v)
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28 {
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29 if (LJ_64 && sz == 4) { /* Support 32 bit pointers on 64 bit targets. */
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30 *(uint32_t *)p = (uint32_t)(uintptr_t)v;
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31 } else {
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32 lj_assertX(sz == CTSIZE_PTR, "bad pointer size %d", sz);
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33 *(void **)p = (void *)v;
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34 }
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35 }
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36
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37 /* Allocate fixed-size C data object. */
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38 static LJ_AINLINE GCcdata *lj_cdata_new(CTState *cts, CTypeID id, CTSize sz)
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39 {
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40 GCcdata *cd;
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41 #ifdef LUA_USE_ASSERT
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42 CType *ct = ctype_raw(cts, id);
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43 lj_assertCTS((ctype_hassize(ct->info) ? ct->size : CTSIZE_PTR) == sz,
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44 "inconsistent size of fixed-size cdata alloc");
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45 #endif
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46 cd = (GCcdata *)lj_mem_newgco(cts->L, sizeof(GCcdata) + sz);
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47 cd->gct = ~LJ_TCDATA;
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48 cd->ctypeid = ctype_check(cts, id);
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49 return cd;
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50 }
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51
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52 /* Variant which works without a valid CTState. */
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53 static LJ_AINLINE GCcdata *lj_cdata_new_(lua_State *L, CTypeID id, CTSize sz)
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54 {
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55 GCcdata *cd = (GCcdata *)lj_mem_newgco(L, sizeof(GCcdata) + sz);
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56 cd->gct = ~LJ_TCDATA;
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57 cd->ctypeid = id;
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58 return cd;
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59 }
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60
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61 LJ_FUNC GCcdata *lj_cdata_newref(CTState *cts, const void *pp, CTypeID id);
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62 LJ_FUNC GCcdata *lj_cdata_newv(lua_State *L, CTypeID id, CTSize sz,
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63 CTSize align);
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64 LJ_FUNC GCcdata *lj_cdata_newx(CTState *cts, CTypeID id, CTSize sz,
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65 CTInfo info);
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66
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67 LJ_FUNC void LJ_FASTCALL lj_cdata_free(global_State *g, GCcdata *cd);
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68 LJ_FUNC void lj_cdata_setfin(lua_State *L, GCcdata *cd, GCobj *obj,
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69 uint32_t it);
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70
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71 LJ_FUNC CType *lj_cdata_index(CTState *cts, GCcdata *cd, cTValue *key,
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72 uint8_t **pp, CTInfo *qual);
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73 LJ_FUNC int lj_cdata_get(CTState *cts, CType *s, TValue *o, uint8_t *sp);
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74 LJ_FUNC void lj_cdata_set(CTState *cts, CType *d, uint8_t *dp, TValue *o,
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75 CTInfo qual);
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76
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77 #endif
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78
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79 #endif