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comparison third_party/luajit/src/lib_os.c @ 186:8cf4ec5e2191 hg-web

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Fixed merge conflict.
author MrJuneJune <me@mrjunejune.com>
date Fri, 23 Jan 2026 22:38:59 -0800
parents 94705b5986b3
children
comparison
equal deleted inserted replaced
176:fed99fc04e12 186:8cf4ec5e2191
1 /*
2 ** OS library.
3 ** Copyright (C) 2005-2023 Mike Pall. See Copyright Notice in luajit.h
4 **
5 ** Major portions taken verbatim or adapted from the Lua interpreter.
6 ** Copyright (C) 1994-2008 Lua.org, PUC-Rio. See Copyright Notice in lua.h
7 */
8
9 #include <errno.h>
10 #include <time.h>
11
12 #define lib_os_c
13 #define LUA_LIB
14
15 #include "lua.h"
16 #include "lauxlib.h"
17 #include "lualib.h"
18
19 #include "lj_obj.h"
20 #include "lj_gc.h"
21 #include "lj_err.h"
22 #include "lj_buf.h"
23 #include "lj_str.h"
24 #include "lj_lib.h"
25
26 #if LJ_TARGET_POSIX
27 #include <unistd.h>
28 #else
29 #include <stdio.h>
30 #endif
31
32 #if !LJ_TARGET_PSVITA
33 #include <locale.h>
34 #endif
35
36 /* ------------------------------------------------------------------------ */
37
38 #define LJLIB_MODULE_os
39
40 LJLIB_CF(os_execute)
41 {
42 #if LJ_NO_SYSTEM
43 #if LJ_52
44 errno = ENOSYS;
45 return luaL_fileresult(L, 0, NULL);
46 #else
47 lua_pushinteger(L, -1);
48 return 1;
49 #endif
50 #else
51 const char *cmd = luaL_optstring(L, 1, NULL);
52 int stat = system(cmd);
53 #if LJ_52
54 if (cmd)
55 return luaL_execresult(L, stat);
56 setboolV(L->top++, 1);
57 #else
58 setintV(L->top++, stat);
59 #endif
60 return 1;
61 #endif
62 }
63
64 LJLIB_CF(os_remove)
65 {
66 const char *filename = luaL_checkstring(L, 1);
67 return luaL_fileresult(L, remove(filename) == 0, filename);
68 }
69
70 LJLIB_CF(os_rename)
71 {
72 const char *fromname = luaL_checkstring(L, 1);
73 const char *toname = luaL_checkstring(L, 2);
74 return luaL_fileresult(L, rename(fromname, toname) == 0, fromname);
75 }
76
77 LJLIB_CF(os_tmpname)
78 {
79 #if LJ_TARGET_PS3 || LJ_TARGET_PS4 || LJ_TARGET_PS5 || LJ_TARGET_PSVITA || LJ_TARGET_NX
80 lj_err_caller(L, LJ_ERR_OSUNIQF);
81 return 0;
82 #else
83 #if LJ_TARGET_POSIX
84 char buf[15+1];
85 int fp;
86 strcpy(buf, "/tmp/lua_XXXXXX");
87 fp = mkstemp(buf);
88 if (fp != -1)
89 close(fp);
90 else
91 lj_err_caller(L, LJ_ERR_OSUNIQF);
92 #else
93 char buf[L_tmpnam];
94 if (tmpnam(buf) == NULL)
95 lj_err_caller(L, LJ_ERR_OSUNIQF);
96 #endif
97 lua_pushstring(L, buf);
98 return 1;
99 #endif
100 }
101
102 LJLIB_CF(os_getenv)
103 {
104 #if LJ_TARGET_CONSOLE
105 lua_pushnil(L);
106 #else
107 lua_pushstring(L, getenv(luaL_checkstring(L, 1))); /* if NULL push nil */
108 #endif
109 return 1;
110 }
111
112 LJLIB_CF(os_exit)
113 {
114 int status;
115 if (L->base < L->top && tvisbool(L->base))
116 status = boolV(L->base) ? EXIT_SUCCESS : EXIT_FAILURE;
117 else
118 status = lj_lib_optint(L, 1, EXIT_SUCCESS);
119 if (L->base+1 < L->top && tvistruecond(L->base+1))
120 lua_close(L);
121 exit(status);
122 return 0; /* Unreachable. */
123 }
124
125 LJLIB_CF(os_clock)
126 {
127 setnumV(L->top++, ((lua_Number)clock())*(1.0/(lua_Number)CLOCKS_PER_SEC));
128 return 1;
129 }
130
131 /* ------------------------------------------------------------------------ */
132
133 static void setfield(lua_State *L, const char *key, int value)
134 {
135 lua_pushinteger(L, value);
136 lua_setfield(L, -2, key);
137 }
138
139 static void setboolfield(lua_State *L, const char *key, int value)
140 {
141 if (value < 0) /* undefined? */
142 return; /* does not set field */
143 lua_pushboolean(L, value);
144 lua_setfield(L, -2, key);
145 }
146
147 static int getboolfield(lua_State *L, const char *key)
148 {
149 int res;
150 lua_getfield(L, -1, key);
151 res = lua_isnil(L, -1) ? -1 : lua_toboolean(L, -1);
152 lua_pop(L, 1);
153 return res;
154 }
155
156 static int getfield(lua_State *L, const char *key, int d)
157 {
158 int res;
159 lua_getfield(L, -1, key);
160 if (lua_isnumber(L, -1)) {
161 res = (int)lua_tointeger(L, -1);
162 } else {
163 if (d < 0)
164 lj_err_callerv(L, LJ_ERR_OSDATEF, key);
165 res = d;
166 }
167 lua_pop(L, 1);
168 return res;
169 }
170
171 LJLIB_CF(os_date)
172 {
173 const char *s = luaL_optstring(L, 1, "%c");
174 time_t t = luaL_opt(L, (time_t)luaL_checknumber, 2, time(NULL));
175 struct tm *stm;
176 #if LJ_TARGET_POSIX
177 struct tm rtm;
178 #endif
179 if (*s == '!') { /* UTC? */
180 s++; /* Skip '!' */
181 #if LJ_TARGET_POSIX
182 stm = gmtime_r(&t, &rtm);
183 #else
184 stm = gmtime(&t);
185 #endif
186 } else {
187 #if LJ_TARGET_POSIX
188 stm = localtime_r(&t, &rtm);
189 #else
190 stm = localtime(&t);
191 #endif
192 }
193 if (stm == NULL) { /* Invalid date? */
194 setnilV(L->top++);
195 } else if (strcmp(s, "*t") == 0) {
196 lua_createtable(L, 0, 9); /* 9 = number of fields */
197 setfield(L, "sec", stm->tm_sec);
198 setfield(L, "min", stm->tm_min);
199 setfield(L, "hour", stm->tm_hour);
200 setfield(L, "day", stm->tm_mday);
201 setfield(L, "month", stm->tm_mon+1);
202 setfield(L, "year", stm->tm_year+1900);
203 setfield(L, "wday", stm->tm_wday+1);
204 setfield(L, "yday", stm->tm_yday+1);
205 setboolfield(L, "isdst", stm->tm_isdst);
206 } else if (*s) {
207 SBuf *sb = &G(L)->tmpbuf;
208 MSize sz = 0, retry = 4;
209 const char *q;
210 for (q = s; *q; q++)
211 sz += (*q == '%') ? 30 : 1; /* Overflow doesn't matter. */
212 setsbufL(sb, L);
213 while (retry--) { /* Limit growth for invalid format or empty result. */
214 char *buf = lj_buf_need(sb, sz);
215 size_t len = strftime(buf, sbufsz(sb), s, stm);
216 if (len) {
217 setstrV(L, L->top++, lj_str_new(L, buf, len));
218 lj_gc_check(L);
219 break;
220 }
221 sz += (sz|1);
222 }
223 } else {
224 setstrV(L, L->top++, &G(L)->strempty);
225 }
226 return 1;
227 }
228
229 LJLIB_CF(os_time)
230 {
231 time_t t;
232 if (lua_isnoneornil(L, 1)) { /* called without args? */
233 t = time(NULL); /* get current time */
234 } else {
235 struct tm ts;
236 luaL_checktype(L, 1, LUA_TTABLE);
237 lua_settop(L, 1); /* make sure table is at the top */
238 ts.tm_sec = getfield(L, "sec", 0);
239 ts.tm_min = getfield(L, "min", 0);
240 ts.tm_hour = getfield(L, "hour", 12);
241 ts.tm_mday = getfield(L, "day", -1);
242 ts.tm_mon = getfield(L, "month", -1) - 1;
243 ts.tm_year = getfield(L, "year", -1) - 1900;
244 ts.tm_isdst = getboolfield(L, "isdst");
245 t = mktime(&ts);
246 }
247 if (t == (time_t)(-1))
248 lua_pushnil(L);
249 else
250 lua_pushnumber(L, (lua_Number)t);
251 return 1;
252 }
253
254 LJLIB_CF(os_difftime)
255 {
256 lua_pushnumber(L, difftime((time_t)(luaL_checknumber(L, 1)),
257 (time_t)(luaL_optnumber(L, 2, (lua_Number)0))));
258 return 1;
259 }
260
261 /* ------------------------------------------------------------------------ */
262
263 LJLIB_CF(os_setlocale)
264 {
265 #if LJ_TARGET_PSVITA
266 lua_pushliteral(L, "C");
267 #else
268 GCstr *s = lj_lib_optstr(L, 1);
269 const char *str = s ? strdata(s) : NULL;
270 int opt = lj_lib_checkopt(L, 2, 6,
271 "\5ctype\7numeric\4time\7collate\10monetary\1\377\3all");
272 if (opt == 0) opt = LC_CTYPE;
273 else if (opt == 1) opt = LC_NUMERIC;
274 else if (opt == 2) opt = LC_TIME;
275 else if (opt == 3) opt = LC_COLLATE;
276 else if (opt == 4) opt = LC_MONETARY;
277 else if (opt == 6) opt = LC_ALL;
278 lua_pushstring(L, setlocale(opt, str));
279 #endif
280 return 1;
281 }
282
283 /* ------------------------------------------------------------------------ */
284
285 #include "lj_libdef.h"
286
287 LUALIB_API int luaopen_os(lua_State *L)
288 {
289 LJ_LIB_REG(L, LUA_OSLIBNAME, os);
290 return 1;
291 }
292