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annotate third_party/luajit/src/lj_cdata.c @ 204:e5aed6c36672

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[Notes] Added icons and updated styling a bit. Probalby usable now.
author MrJuneJune <me@mrjunejune.com>
date Sun, 15 Feb 2026 11:02:13 -0800
parents 94705b5986b3
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
178
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
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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 #include "lj_obj.h"
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7
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8 #if LJ_HASFFI
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9
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10 #include "lj_gc.h"
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11 #include "lj_err.h"
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12 #include "lj_tab.h"
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13 #include "lj_ctype.h"
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14 #include "lj_cconv.h"
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15 #include "lj_cdata.h"
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16
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17 /* -- C data allocation --------------------------------------------------- */
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18
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19 /* Allocate a new C data object holding a reference to another object. */
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20 GCcdata *lj_cdata_newref(CTState *cts, const void *p, CTypeID id)
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21 {
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22 CTypeID refid = lj_ctype_intern(cts, CTINFO_REF(id), CTSIZE_PTR);
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23 GCcdata *cd = lj_cdata_new(cts, refid, CTSIZE_PTR);
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24 *(const void **)cdataptr(cd) = p;
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25 return cd;
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26 }
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27
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28 /* Allocate variable-sized or specially aligned C data object. */
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29 GCcdata *lj_cdata_newv(lua_State *L, CTypeID id, CTSize sz, CTSize align)
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30 {
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31 global_State *g;
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32 MSize extra = sizeof(GCcdataVar) + sizeof(GCcdata) +
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33 (align > CT_MEMALIGN ? (1u<<align) - (1u<<CT_MEMALIGN) : 0);
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34 char *p = lj_mem_newt(L, extra + sz, char);
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35 uintptr_t adata = (uintptr_t)p + sizeof(GCcdataVar) + sizeof(GCcdata);
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36 uintptr_t almask = (1u << align) - 1u;
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37 GCcdata *cd = (GCcdata *)(((adata + almask) & ~almask) - sizeof(GCcdata));
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38 lj_assertL((char *)cd - p < 65536, "excessive cdata alignment");
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39 cdatav(cd)->offset = (uint16_t)((char *)cd - p);
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40 cdatav(cd)->extra = extra;
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41 cdatav(cd)->len = sz;
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42 g = G(L);
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43 setgcrefr(cd->nextgc, g->gc.root);
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44 setgcref(g->gc.root, obj2gco(cd));
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45 newwhite(g, obj2gco(cd));
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46 cd->marked |= 0x80;
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47 cd->gct = ~LJ_TCDATA;
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48 cd->ctypeid = id;
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49 return cd;
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50 }
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51
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52 /* Allocate arbitrary C data object. */
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53 GCcdata *lj_cdata_newx(CTState *cts, CTypeID id, CTSize sz, CTInfo info)
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54 {
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55 if (!(info & CTF_VLA) && ctype_align(info) <= CT_MEMALIGN)
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56 return lj_cdata_new(cts, id, sz);
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57 else
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58 return lj_cdata_newv(cts->L, id, sz, ctype_align(info));
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59 }
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60
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61 /* Free a C data object. */
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62 void LJ_FASTCALL lj_cdata_free(global_State *g, GCcdata *cd)
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63 {
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64 if (LJ_UNLIKELY(cd->marked & LJ_GC_CDATA_FIN)) {
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65 GCobj *root;
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66 makewhite(g, obj2gco(cd));
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67 markfinalized(obj2gco(cd));
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68 if ((root = gcref(g->gc.mmudata)) != NULL) {
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69 setgcrefr(cd->nextgc, root->gch.nextgc);
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70 setgcref(root->gch.nextgc, obj2gco(cd));
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71 setgcref(g->gc.mmudata, obj2gco(cd));
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72 } else {
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73 setgcref(cd->nextgc, obj2gco(cd));
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74 setgcref(g->gc.mmudata, obj2gco(cd));
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75 }
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76 } else if (LJ_LIKELY(!cdataisv(cd))) {
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77 CType *ct = ctype_raw(ctype_ctsG(g), cd->ctypeid);
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78 CTSize sz = ctype_hassize(ct->info) ? ct->size : CTSIZE_PTR;
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79 lj_assertG(ctype_hassize(ct->info) || ctype_isfunc(ct->info) ||
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80 ctype_isextern(ct->info), "free of ctype without a size");
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81 lj_mem_free(g, cd, sizeof(GCcdata) + sz);
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82 } else {
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83 lj_mem_free(g, memcdatav(cd), sizecdatav(cd));
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84 }
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85 }
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86
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87 void lj_cdata_setfin(lua_State *L, GCcdata *cd, GCobj *obj, uint32_t it)
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88 {
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89 GCtab *t = ctype_ctsG(G(L))->finalizer;
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90 if (gcref(t->metatable)) {
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91 /* Add cdata to finalizer table, if still enabled. */
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92 TValue *tv, tmp;
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93 setcdataV(L, &tmp, cd);
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94 lj_gc_anybarriert(L, t);
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95 tv = lj_tab_set(L, t, &tmp);
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96 if (it == LJ_TNIL) {
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97 setnilV(tv);
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98 cd->marked &= ~LJ_GC_CDATA_FIN;
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99 } else {
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100 setgcV(L, tv, obj, it);
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101 cd->marked |= LJ_GC_CDATA_FIN;
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102 }
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103 }
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104 }
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105
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106 /* -- C data indexing ----------------------------------------------------- */
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107
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108 /* Index C data by a TValue. Return CType and pointer. */
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109 CType *lj_cdata_index(CTState *cts, GCcdata *cd, cTValue *key, uint8_t **pp,
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110 CTInfo *qual)
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111 {
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112 uint8_t *p = (uint8_t *)cdataptr(cd);
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113 CType *ct = ctype_get(cts, cd->ctypeid);
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114 ptrdiff_t idx;
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115
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116 /* Resolve reference for cdata object. */
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117 if (ctype_isref(ct->info)) {
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118 lj_assertCTS(ct->size == CTSIZE_PTR, "ref is not pointer-sized");
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119 p = *(uint8_t **)p;
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120 ct = ctype_child(cts, ct);
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121 }
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122
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123 collect_attrib:
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124 /* Skip attributes and collect qualifiers. */
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
125 while (ctype_isattrib(ct->info)) {
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
126 if (ctype_attrib(ct->info) == CTA_QUAL) *qual |= ct->size;
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
127 ct = ctype_child(cts, ct);
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
128 }
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
129 /* Interning rejects refs to refs. */
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
130 lj_assertCTS(!ctype_isref(ct->info), "bad ref of ref");
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
131
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
132 if (tvisint(key)) {
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
133 idx = (ptrdiff_t)intV(key);
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
134 goto integer_key;
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
135 } else if (tvisnum(key)) { /* Numeric key. */
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
136 #ifdef _MSC_VER
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
137 /* Workaround for MSVC bug. */
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
138 volatile
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
139 #endif
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
140 lua_Number n = numV(key);
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
141 idx = LJ_64 ? (ptrdiff_t)n : (ptrdiff_t)lj_num2int(n);
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
142 integer_key:
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
143 if (ctype_ispointer(ct->info)) {
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
144 CTSize sz = lj_ctype_size(cts, ctype_cid(ct->info)); /* Element size. */
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
145 if (sz == CTSIZE_INVALID)
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
146 lj_err_caller(cts->L, LJ_ERR_FFI_INVSIZE);
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
147 if (ctype_isptr(ct->info)) {
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
148 p = (uint8_t *)cdata_getptr(p, ct->size);
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
149 } else if ((ct->info & (CTF_VECTOR|CTF_COMPLEX))) {
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
150 if ((ct->info & CTF_COMPLEX)) idx &= 1;
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
151 *qual |= CTF_CONST; /* Valarray elements are constant. */
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
152 }
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
153 *pp = p + idx*(int32_t)sz;
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
154 return ct;
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
155 }
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
156 } else if (tviscdata(key)) { /* Integer cdata key. */
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
157 GCcdata *cdk = cdataV(key);
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
158 CType *ctk = ctype_raw(cts, cdk->ctypeid);
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
159 if (ctype_isenum(ctk->info)) ctk = ctype_child(cts, ctk);
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
160 if (ctype_isinteger(ctk->info)) {
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
161 lj_cconv_ct_ct(cts, ctype_get(cts, CTID_INT_PSZ), ctk,
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
162 (uint8_t *)&idx, cdataptr(cdk), 0);
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
163 goto integer_key;
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
164 }
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
165 } else if (tvisstr(key)) { /* String key. */
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
166 GCstr *name = strV(key);
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
167 if (ctype_isstruct(ct->info)) {
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
168 CTSize ofs;
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
169 CType *fct = lj_ctype_getfieldq(cts, ct, name, &ofs, qual);
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
170 if (fct) {
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
171 *pp = p + ofs;
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
172 return fct;
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
173 }
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
174 } else if (ctype_iscomplex(ct->info)) {
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
175 if (name->len == 2) {
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
176 *qual |= CTF_CONST; /* Complex fields are constant. */
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
177 if (strdata(name)[0] == 'r' && strdata(name)[1] == 'e') {
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
178 *pp = p;
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
179 return ct;
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
180 } else if (strdata(name)[0] == 'i' && strdata(name)[1] == 'm') {
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
181 *pp = p + (ct->size >> 1);
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
182 return ct;
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
183 }
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
184 }
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
185 } else if (cd->ctypeid == CTID_CTYPEID) {
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
186 /* Allow indexing a (pointer to) struct constructor to get constants. */
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
187 CType *sct = ctype_raw(cts, *(CTypeID *)p);
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
188 if (ctype_isptr(sct->info))
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
189 sct = ctype_rawchild(cts, sct);
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
190 if (ctype_isstruct(sct->info)) {
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
191 CTSize ofs;
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
192 CType *fct = lj_ctype_getfield(cts, sct, name, &ofs);
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
193 if (fct && ctype_isconstval(fct->info))
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
194 return fct;
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
195 }
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
196 ct = sct; /* Allow resolving metamethods for constructors, too. */
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
197 }
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
198 }
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
199 if (ctype_isptr(ct->info)) { /* Automatically perform '->'. */
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
200 if (ctype_isstruct(ctype_rawchild(cts, ct)->info)) {
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
201 p = (uint8_t *)cdata_getptr(p, ct->size);
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
202 ct = ctype_child(cts, ct);
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
203 goto collect_attrib;
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
204 }
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
205 }
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
206 *qual |= 1; /* Lookup failed. */
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
207 return ct; /* But return the resolved raw type. */
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
208 }
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
209
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
210 /* -- C data getters ------------------------------------------------------ */
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
211
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
212 /* Get constant value and convert to TValue. */
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
213 static void cdata_getconst(CTState *cts, TValue *o, CType *ct)
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
214 {
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
215 CType *ctt = ctype_child(cts, ct);
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
216 lj_assertCTS(ctype_isinteger(ctt->info) && ctt->size <= 4,
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
217 "only 32 bit const supported"); /* NYI */
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
218 /* Constants are already zero-extended/sign-extended to 32 bits. */
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
219 if ((ctt->info & CTF_UNSIGNED) && (int32_t)ct->size < 0)
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
220 setnumV(o, (lua_Number)(uint32_t)ct->size);
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
221 else
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
222 setintV(o, (int32_t)ct->size);
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
223 }
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
224
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
225 /* Get C data value and convert to TValue. */
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
226 int lj_cdata_get(CTState *cts, CType *s, TValue *o, uint8_t *sp)
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
227 {
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
228 CTypeID sid;
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
229
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
230 if (ctype_isconstval(s->info)) {
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
231 cdata_getconst(cts, o, s);
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
232 return 0; /* No GC step needed. */
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
233 } else if (ctype_isbitfield(s->info)) {
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
234 return lj_cconv_tv_bf(cts, s, o, sp);
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
235 }
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
236
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
237 /* Get child type of pointer/array/field. */
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
238 lj_assertCTS(ctype_ispointer(s->info) || ctype_isfield(s->info),
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
239 "pointer or field expected");
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
240 sid = ctype_cid(s->info);
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
241 s = ctype_get(cts, sid);
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
242
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
243 /* Resolve reference for field. */
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
244 if (ctype_isref(s->info)) {
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
245 lj_assertCTS(s->size == CTSIZE_PTR, "ref is not pointer-sized");
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
246 sp = *(uint8_t **)sp;
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
247 sid = ctype_cid(s->info);
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
248 s = ctype_get(cts, sid);
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
249 }
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
250
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
251 /* Skip attributes. */
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252 while (ctype_isattrib(s->info))
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253 s = ctype_child(cts, s);
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254
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255 return lj_cconv_tv_ct(cts, s, sid, o, sp);
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256 }
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257
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258 /* -- C data setters ------------------------------------------------------ */
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259
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260 /* Convert TValue and set C data value. */
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261 void lj_cdata_set(CTState *cts, CType *d, uint8_t *dp, TValue *o, CTInfo qual)
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262 {
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263 if (ctype_isconstval(d->info)) {
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
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264 goto err_const;
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265 } else if (ctype_isbitfield(d->info)) {
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
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266 if (((d->info|qual) & CTF_CONST)) goto err_const;
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267 lj_cconv_bf_tv(cts, d, dp, o);
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268 return;
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269 }
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270
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
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271 /* Get child type of pointer/array/field. */
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272 lj_assertCTS(ctype_ispointer(d->info) || ctype_isfield(d->info),
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273 "pointer or field expected");
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274 d = ctype_child(cts, d);
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275
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276 /* Resolve reference for field. */
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277 if (ctype_isref(d->info)) {
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
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parents:
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278 lj_assertCTS(d->size == CTSIZE_PTR, "ref is not pointer-sized");
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279 dp = *(uint8_t **)dp;
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280 d = ctype_child(cts, d);
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281 }
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282
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MrJuneJune <me@mrjunejune.com>
parents:
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283 /* Skip attributes and collect qualifiers. */
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MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
284 for (;;) {
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parents:
diff changeset
285 if (ctype_isattrib(d->info)) {
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
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parents:
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286 if (ctype_attrib(d->info) == CTA_QUAL) qual |= d->size;
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MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
287 } else {
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
288 break;
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MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
289 }
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
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parents:
diff changeset
290 d = ctype_child(cts, d);
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parents:
diff changeset
291 }
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
292
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
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parents:
diff changeset
293 lj_assertCTS(ctype_hassize(d->info), "store to ctype without size");
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parents:
diff changeset
294 lj_assertCTS(!ctype_isvoid(d->info), "store to void type");
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parents:
diff changeset
295
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
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parents:
diff changeset
296 if (((d->info|qual) & CTF_CONST)) {
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
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parents:
diff changeset
297 err_const:
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
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parents:
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298 lj_err_caller(cts->L, LJ_ERR_FFI_WRCONST);
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MrJuneJune <me@mrjunejune.com>
parents:
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299 }
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
300
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
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parents:
diff changeset
301 lj_cconv_ct_tv(cts, d, dp, o, 0);
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parents:
diff changeset
302 }
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
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303
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
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304 #endif