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annotate third_party/luajit/src/lib_aux.c @ 185:dfdd66825396

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Merged in keep alive changes and mrjunejune changes.
author MrJuneJune <me@mrjunejune.com>
date Fri, 23 Jan 2026 22:22:30 -0800
parents 94705b5986b3
children
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rev   line source
178
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1 /*
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2 ** Auxiliary library for the Lua/C API.
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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 ** Major parts taken verbatim or adapted from the Lua interpreter.
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6 ** Copyright (C) 1994-2008 Lua.org, PUC-Rio. See Copyright Notice in lua.h
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7 */
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8
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9 #include <errno.h>
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10 #include <stdarg.h>
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11 #include <stdio.h>
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12
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13 #define lib_aux_c
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14 #define LUA_LIB
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15
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16 #include "lua.h"
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17 #include "lauxlib.h"
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18
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19 #include "lj_obj.h"
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20 #include "lj_err.h"
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21 #include "lj_state.h"
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22 #include "lj_trace.h"
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23 #include "lj_lib.h"
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24 #include "lj_vmevent.h"
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25
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26 #if LJ_TARGET_POSIX
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27 #include <sys/wait.h>
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28 #endif
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29
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30 /* -- I/O error handling -------------------------------------------------- */
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31
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32 LUALIB_API int luaL_fileresult(lua_State *L, int stat, const char *fname)
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33 {
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34 if (stat) {
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35 setboolV(L->top++, 1);
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36 return 1;
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37 } else {
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38 int en = errno; /* Lua API calls may change this value. */
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39 setnilV(L->top++);
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40 if (fname)
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41 lua_pushfstring(L, "%s: %s", fname, strerror(en));
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42 else
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43 lua_pushfstring(L, "%s", strerror(en));
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44 setintV(L->top++, en);
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45 lj_trace_abort(G(L));
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46 return 3;
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47 }
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48 }
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49
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50 LUALIB_API int luaL_execresult(lua_State *L, int stat)
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51 {
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52 if (stat != -1) {
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53 #if LJ_TARGET_POSIX
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54 if (WIFSIGNALED(stat)) {
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55 stat = WTERMSIG(stat);
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56 setnilV(L->top++);
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57 lua_pushliteral(L, "signal");
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58 } else {
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59 if (WIFEXITED(stat))
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60 stat = WEXITSTATUS(stat);
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61 if (stat == 0)
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62 setboolV(L->top++, 1);
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63 else
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64 setnilV(L->top++);
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65 lua_pushliteral(L, "exit");
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66 }
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67 #else
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68 if (stat == 0)
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69 setboolV(L->top++, 1);
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70 else
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71 setnilV(L->top++);
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72 lua_pushliteral(L, "exit");
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73 #endif
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74 setintV(L->top++, stat);
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75 return 3;
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76 }
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77 return luaL_fileresult(L, 0, NULL);
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78 }
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79
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80 /* -- Module registration ------------------------------------------------- */
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81
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82 LUALIB_API const char *luaL_findtable(lua_State *L, int idx,
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83 const char *fname, int szhint)
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84 {
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85 const char *e;
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86 lua_pushvalue(L, idx);
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87 do {
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88 e = strchr(fname, '.');
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89 if (e == NULL) e = fname + strlen(fname);
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90 lua_pushlstring(L, fname, (size_t)(e - fname));
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91 lua_rawget(L, -2);
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92 if (lua_isnil(L, -1)) { /* no such field? */
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93 lua_pop(L, 1); /* remove this nil */
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94 lua_createtable(L, 0, (*e == '.' ? 1 : szhint)); /* new table for field */
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95 lua_pushlstring(L, fname, (size_t)(e - fname));
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96 lua_pushvalue(L, -2);
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97 lua_settable(L, -4); /* set new table into field */
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98 } else if (!lua_istable(L, -1)) { /* field has a non-table value? */
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99 lua_pop(L, 2); /* remove table and value */
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100 return fname; /* return problematic part of the name */
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101 }
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102 lua_remove(L, -2); /* remove previous table */
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103 fname = e + 1;
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104 } while (*e == '.');
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105 return NULL;
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106 }
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107
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108 static int libsize(const luaL_Reg *l)
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109 {
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110 int size = 0;
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111 for (; l && l->name; l++) size++;
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112 return size;
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113 }
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114
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115 LUALIB_API void luaL_pushmodule(lua_State *L, const char *modname, int sizehint)
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116 {
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117 luaL_findtable(L, LUA_REGISTRYINDEX, "_LOADED", 16);
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118 lua_getfield(L, -1, modname);
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119 if (!lua_istable(L, -1)) {
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120 lua_pop(L, 1);
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121 if (luaL_findtable(L, LUA_GLOBALSINDEX, modname, sizehint) != NULL)
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122 lj_err_callerv(L, LJ_ERR_BADMODN, modname);
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123 lua_pushvalue(L, -1);
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124 lua_setfield(L, -3, modname); /* _LOADED[modname] = new table. */
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125 }
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126 lua_remove(L, -2); /* Remove _LOADED table. */
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127 }
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128
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129 LUALIB_API void luaL_openlib(lua_State *L, const char *libname,
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130 const luaL_Reg *l, int nup)
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parents:
diff changeset
131 {
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
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diff changeset
132 lj_lib_checkfpu(L);
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MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
133 if (libname) {
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
134 luaL_pushmodule(L, libname, libsize(l));
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
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parents:
diff changeset
135 lua_insert(L, -(nup + 1)); /* Move module table below upvalues. */
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
136 }
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
137 if (l)
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
138 luaL_setfuncs(L, l, nup);
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MrJuneJune <me@mrjunejune.com>
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diff changeset
139 else
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
140 lua_pop(L, nup); /* Remove upvalues. */
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MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
141 }
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MrJuneJune <me@mrjunejune.com>
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diff changeset
142
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
143 LUALIB_API void luaL_register(lua_State *L, const char *libname,
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
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diff changeset
144 const luaL_Reg *l)
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MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
145 {
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
146 luaL_openlib(L, libname, l, 0);
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MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
147 }
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MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
148
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
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diff changeset
149 LUALIB_API void luaL_setfuncs(lua_State *L, const luaL_Reg *l, int nup)
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MrJuneJune <me@mrjunejune.com>
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diff changeset
150 {
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
151 luaL_checkstack(L, nup, "too many upvalues");
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
152 for (; l->name; l++) {
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
153 int i;
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
154 for (i = 0; i < nup; i++) /* Copy upvalues to the top. */
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
155 lua_pushvalue(L, -nup);
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
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diff changeset
156 lua_pushcclosure(L, l->func, nup);
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
157 lua_setfield(L, -(nup + 2), l->name);
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MrJuneJune <me@mrjunejune.com>
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diff changeset
158 }
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
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diff changeset
159 lua_pop(L, nup); /* Remove upvalues. */
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MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
160 }
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MrJuneJune <me@mrjunejune.com>
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diff changeset
161
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
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diff changeset
162 LUALIB_API const char *luaL_gsub(lua_State *L, const char *s,
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MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
163 const char *p, const char *r)
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MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
164 {
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MrJuneJune <me@mrjunejune.com>
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diff changeset
165 const char *wild;
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MrJuneJune <me@mrjunejune.com>
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diff changeset
166 size_t l = strlen(p);
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MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
167 luaL_Buffer b;
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MrJuneJune <me@mrjunejune.com>
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diff changeset
168 luaL_buffinit(L, &b);
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MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
169 while ((wild = strstr(s, p)) != NULL) {
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
170 luaL_addlstring(&b, s, (size_t)(wild - s)); /* push prefix */
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
171 luaL_addstring(&b, r); /* push replacement in place of pattern */
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
172 s = wild + l; /* continue after `p' */
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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 luaL_addstring(&b, s); /* push last suffix */
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
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diff changeset
175 luaL_pushresult(&b);
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MrJuneJune <me@mrjunejune.com>
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diff changeset
176 return lua_tostring(L, -1);
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MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
177 }
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MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
178
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
179 /* -- Buffer handling ----------------------------------------------------- */
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MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
180
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
181 #define bufflen(B) ((size_t)((B)->p - (B)->buffer))
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
182 #define bufffree(B) ((size_t)(LUAL_BUFFERSIZE - bufflen(B)))
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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 static int emptybuffer(luaL_Buffer *B)
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MrJuneJune <me@mrjunejune.com>
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diff changeset
185 {
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MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
186 size_t l = bufflen(B);
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MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
187 if (l == 0)
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
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diff changeset
188 return 0; /* put nothing on stack */
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MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
189 lua_pushlstring(B->L, B->buffer, l);
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
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diff changeset
190 B->p = B->buffer;
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MrJuneJune <me@mrjunejune.com>
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diff changeset
191 B->lvl++;
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MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
192 return 1;
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MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
193 }
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MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
194
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MrJuneJune <me@mrjunejune.com>
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diff changeset
195 static void adjuststack(luaL_Buffer *B)
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MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
196 {
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
197 if (B->lvl > 1) {
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MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
198 lua_State *L = B->L;
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MrJuneJune <me@mrjunejune.com>
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diff changeset
199 int toget = 1; /* number of levels to concat */
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
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diff changeset
200 size_t toplen = lua_strlen(L, -1);
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MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
201 do {
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
202 size_t l = lua_strlen(L, -(toget+1));
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
203 if (!(B->lvl - toget + 1 >= LUA_MINSTACK/2 || toplen > l))
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
204 break;
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
205 toplen += l;
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
206 toget++;
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
207 } while (toget < B->lvl);
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
208 lua_concat(L, toget);
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
209 B->lvl = B->lvl - toget + 1;
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
210 }
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
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
213 LUALIB_API char *luaL_prepbuffer(luaL_Buffer *B)
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 if (emptybuffer(B))
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
216 adjuststack(B);
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
217 return B->buffer;
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
218 }
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
219
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
220 LUALIB_API void luaL_addlstring(luaL_Buffer *B, const char *s, size_t l)
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
221 {
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
222 if (l <= bufffree(B)) {
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
223 memcpy(B->p, s, l);
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MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
224 B->p += l;
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
225 } else {
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
226 emptybuffer(B);
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
227 lua_pushlstring(B->L, s, l);
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
228 B->lvl++;
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
229 adjuststack(B);
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
230 }
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
231 }
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
232
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
233 LUALIB_API void luaL_addstring(luaL_Buffer *B, const char *s)
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
234 {
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
235 luaL_addlstring(B, s, strlen(s));
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
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
238 LUALIB_API void luaL_pushresult(luaL_Buffer *B)
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
239 {
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
240 emptybuffer(B);
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
241 lua_concat(B->L, B->lvl);
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
242 B->lvl = 1;
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
243 }
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
244
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
245 LUALIB_API void luaL_addvalue(luaL_Buffer *B)
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
246 {
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
247 lua_State *L = B->L;
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
248 size_t vl;
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
249 const char *s = lua_tolstring(L, -1, &vl);
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
250 if (vl <= bufffree(B)) { /* fit into buffer? */
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
251 memcpy(B->p, s, vl); /* put it there */
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
252 B->p += vl;
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
253 lua_pop(L, 1); /* remove from stack */
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
254 } else {
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
255 if (emptybuffer(B))
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
256 lua_insert(L, -2); /* put buffer before new value */
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
257 B->lvl++; /* add new value into B stack */
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
258 adjuststack(B);
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
259 }
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
260 }
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
261
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
parents:
diff changeset
262 LUALIB_API void luaL_buffinit(lua_State *L, luaL_Buffer *B)
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263 {
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264 B->L = L;
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265 B->p = B->buffer;
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266 B->lvl = 0;
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267 }
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268
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269 /* -- Reference management ------------------------------------------------ */
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270
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271 #define FREELIST_REF 0
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272
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273 /* Convert a stack index to an absolute index. */
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274 #define abs_index(L, i) \
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275 ((i) > 0 || (i) <= LUA_REGISTRYINDEX ? (i) : lua_gettop(L) + (i) + 1)
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276
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277 LUALIB_API int luaL_ref(lua_State *L, int t)
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278 {
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279 int ref;
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280 t = abs_index(L, t);
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281 if (lua_isnil(L, -1)) {
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282 lua_pop(L, 1); /* remove from stack */
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283 return LUA_REFNIL; /* `nil' has a unique fixed reference */
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284 }
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285 lua_rawgeti(L, t, FREELIST_REF); /* get first free element */
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286 ref = (int)lua_tointeger(L, -1); /* ref = t[FREELIST_REF] */
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287 lua_pop(L, 1); /* remove it from stack */
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288 if (ref != 0) { /* any free element? */
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289 lua_rawgeti(L, t, ref); /* remove it from list */
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290 lua_rawseti(L, t, FREELIST_REF); /* (t[FREELIST_REF] = t[ref]) */
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291 } else { /* no free elements */
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292 ref = (int)lua_objlen(L, t);
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293 ref++; /* create new reference */
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294 }
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295 lua_rawseti(L, t, ref);
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296 return ref;
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297 }
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298
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299 LUALIB_API void luaL_unref(lua_State *L, int t, int ref)
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300 {
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301 if (ref >= 0) {
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302 t = abs_index(L, t);
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303 lua_rawgeti(L, t, FREELIST_REF);
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304 lua_rawseti(L, t, ref); /* t[ref] = t[FREELIST_REF] */
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305 lua_pushinteger(L, ref);
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306 lua_rawseti(L, t, FREELIST_REF); /* t[FREELIST_REF] = ref */
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307 }
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308 }
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309
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310 /* -- Default allocator and panic function -------------------------------- */
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311
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312 static int panic(lua_State *L)
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313 {
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314 const char *s = lua_tostring(L, -1);
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315 fputs("PANIC: unprotected error in call to Lua API (", stderr);
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316 fputs(s ? s : "?", stderr);
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317 fputc(')', stderr); fputc('\n', stderr);
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318 fflush(stderr);
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319 return 0;
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320 }
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321
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322 #ifndef LUAJIT_DISABLE_VMEVENT
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323 static int error_finalizer(lua_State *L)
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324 {
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325 const char *s = lua_tostring(L, -1);
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326 fputs("ERROR in finalizer: ", stderr);
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327 fputs(s ? s : "?", stderr);
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328 fputc('\n', stderr);
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329 fflush(stderr);
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330 return 0;
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331 }
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332 #endif
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333
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334 #ifdef LUAJIT_USE_SYSMALLOC
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335
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336 #if LJ_64 && !LJ_GC64 && !defined(LUAJIT_USE_VALGRIND)
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337 #error "Must use builtin allocator for 64 bit target"
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338 #endif
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339
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340 static void *mem_alloc(void *ud, void *ptr, size_t osize, size_t nsize)
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341 {
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342 (void)ud;
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343 (void)osize;
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344 if (nsize == 0) {
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345 free(ptr);
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346 return NULL;
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347 } else {
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348 return realloc(ptr, nsize);
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349 }
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350 }
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351
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352 LUALIB_API lua_State *luaL_newstate(void)
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353 {
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354 lua_State *L = lua_newstate(mem_alloc, NULL);
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355 if (L) {
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356 G(L)->panic = panic;
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357 #ifndef LUAJIT_DISABLE_VMEVENT
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358 luaL_findtable(L, LUA_REGISTRYINDEX, LJ_VMEVENTS_REGKEY, LJ_VMEVENTS_HSIZE);
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359 lua_pushcfunction(L, error_finalizer);
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360 lua_rawseti(L, -2, VMEVENT_HASH(LJ_VMEVENT_ERRFIN));
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361 G(L)->vmevmask = VMEVENT_MASK(LJ_VMEVENT_ERRFIN);
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362 L->top--;
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363 #endif
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364 }
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365 return L;
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366 }
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367
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368 #else
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369
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370 LUALIB_API lua_State *luaL_newstate(void)
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371 {
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372 lua_State *L;
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373 #if LJ_64 && !LJ_GC64
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374 L = lj_state_newstate(LJ_ALLOCF_INTERNAL, NULL);
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375 #else
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376 L = lua_newstate(LJ_ALLOCF_INTERNAL, NULL);
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377 #endif
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378 if (L) {
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379 G(L)->panic = panic;
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380 #ifndef LUAJIT_DISABLE_VMEVENT
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381 luaL_findtable(L, LUA_REGISTRYINDEX, LJ_VMEVENTS_REGKEY, LJ_VMEVENTS_HSIZE);
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diff changeset
382 lua_pushcfunction(L, error_finalizer);
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diff changeset
383 lua_rawseti(L, -2, VMEVENT_HASH(LJ_VMEVENT_ERRFIN));
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diff changeset
384 G(L)->vmevmask = VMEVENT_MASK(LJ_VMEVENT_ERRFIN);
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diff changeset
385 L->top--;
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diff changeset
386 #endif
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diff changeset
387 }
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diff changeset
388 return L;
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diff changeset
389 }
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diff changeset
390
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391 #if LJ_64 && !LJ_GC64
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392 LUA_API lua_State *lua_newstate(lua_Alloc f, void *ud)
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393 {
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
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394 UNUSED(f); UNUSED(ud);
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395 fputs("Must use luaL_newstate() for 64 bit target\n", stderr);
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396 return NULL;
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397 }
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MrJuneJune <me@mrjunejune.com>
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398 #endif
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399
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
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400 #endif
94705b5986b3 [ThirdParty] Added WRK and luajit for load testing.
MrJuneJune <me@mrjunejune.com>
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401