mirror of
https://github.com/lua/lua.git
synced 2024-11-23 18:23:43 +08:00
details
This commit is contained in:
Roberto Ierusalimschy
parent
d84cc9d2db
commit
d55bb795fa
10
lapi.c
10
lapi.c
@ -1,5 +1,5 @@
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/*
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** $Id: lapi.c,v 2.26 2005/01/14 14:19:42 roberto Exp roberto $
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** $Id: lapi.c,v 2.27 2005/02/18 12:40:02 roberto Exp roberto $
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** Lua API
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** See Copyright Notice in lua.h
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*/
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@ -975,7 +975,7 @@ LUA_API void lua_concat (lua_State *L, int n) {
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LUA_API lua_Alloc lua_getallocf (lua_State *L, void **ud) {
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*ud = G(L)->ud;
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return G(L)->realloc;
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return G(L)->frealloc;
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}
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@ -993,7 +993,7 @@ LUA_API void *lua_newuserdata (lua_State *L, size_t size) {
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static const char *aux_upvalue (lua_State *L, StkId fi, int n, TValue **val) {
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static const char *aux_upvalue (StkId fi, int n, TValue **val) {
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Closure *f;
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if (!ttisfunction(fi)) return NULL;
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f = clvalue(fi);
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@ -1015,7 +1015,7 @@ LUA_API const char *lua_getupvalue (lua_State *L, int funcindex, int n) {
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const char *name;
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TValue *val;
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lua_lock(L);
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name = aux_upvalue(L, index2adr(L, funcindex), n, &val);
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name = aux_upvalue(index2adr(L, funcindex), n, &val);
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if (name) {
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setobj2s(L, L->top, val);
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api_incr_top(L);
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@ -1032,7 +1032,7 @@ LUA_API const char *lua_setupvalue (lua_State *L, int funcindex, int n) {
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lua_lock(L);
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fi = index2adr(L, funcindex);
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api_checknelems(L, 1);
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name = aux_upvalue(L, fi, n, &val);
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name = aux_upvalue(fi, n, &val);
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if (name) {
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L->top--;
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setobj(L, val, L->top);
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@ -1,5 +1,5 @@
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/*
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** $Id: lauxlib.c,v 1.127 2004/12/20 13:47:29 roberto Exp roberto $
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** $Id: lauxlib.c,v 1.128 2005/02/10 17:12:02 roberto Exp roberto $
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** Auxiliary functions for building Lua libraries
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** See Copyright Notice in lua.h
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*/
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@ -704,6 +704,7 @@ static void *l_alloc (void *ud, void *ptr, size_t osize, size_t nsize) {
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static int panic (lua_State *L) {
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(void)L; /* to avoid warnings */
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fprintf(stderr, "PANIC: unprotected error during Lua-API call\n");
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return 0;
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}
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@ -1,5 +1,5 @@
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/*
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** $Id: lbaselib.c,v 1.166 2005/02/14 13:19:44 roberto Exp roberto $
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** $Id: lbaselib.c,v 1.167 2005/02/18 12:40:02 roberto Exp roberto $
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** Basic library
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** See Copyright Notice in lua.h
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*/
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@ -283,6 +283,7 @@ static int luaB_loadfile (lua_State *L) {
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** reserved slot inside the stack.
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*/
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static const char *generic_reader (lua_State *L, void *ud, size_t *size) {
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(void)ud; /* to avoid warnings */
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luaL_checkstack(L, 2, "too many nested functions");
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lua_pushvalue(L, 1); /* get function */
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lua_call(L, 0, 1); /* call it */
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9
lgc.c
9
lgc.c
@ -1,5 +1,5 @@
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/*
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** $Id: lgc.c,v 2.25 2005/02/14 13:19:50 roberto Exp roberto $
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** $Id: lgc.c,v 2.26 2005/02/18 12:40:02 roberto Exp roberto $
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** Garbage Collector
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** See Copyright Notice in lua.h
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*/
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@ -36,14 +36,13 @@
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((x)->gch.marked = ((x)->gch.marked & maskmarks) | luaC_white(g))
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#define white2gray(x) reset2bits((x)->gch.marked, WHITE0BIT, WHITE1BIT)
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#define gray2black(x) setbit((x)->gch.marked, BLACKBIT)
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#define black2gray(x) resetbit((x)->gch.marked, BLACKBIT)
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#define stringmark(s) reset2bits((s)->tsv.marked, WHITE0BIT, WHITE1BIT)
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#define isfinalized(u) testbit((u)->marked, FINALIZEDBIT)
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#define markfinalized(u) setbit((u)->marked, FINALIZEDBIT)
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#define markfinalized(u) l_setbit((u)->marked, FINALIZEDBIT)
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#define KEYWEAK bitmask(KEYWEAKBIT)
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@ -665,9 +664,9 @@ void luaC_barrierf (lua_State *L, GCObject *o, GCObject *v) {
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}
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void luaC_barrierback (lua_State *L, GCObject *o, GCObject *v) {
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void luaC_barrierback (lua_State *L, GCObject *o) {
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global_State *g = G(L);
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lua_assert(isblack(o) && iswhite(v) && !isdead(g, v) && !isdead(g, o));
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lua_assert(isblack(o) && !isdead(g, o));
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lua_assert(g->gcstate != GCSfinalize && g->gcstate != GCSpause);
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black2gray(o); /* make table gray (again) */
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gco2h(o)->gclist = g->grayagain;
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12
lgc.h
12
lgc.h
@ -1,5 +1,5 @@
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/*
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** $Id: lgc.h,v 2.10 2005/01/19 15:54:26 roberto Exp roberto $
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** $Id: lgc.h,v 2.11 2005/02/10 13:25:02 roberto Exp roberto $
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** Garbage Collector
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** See Copyright Notice in lua.h
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*/
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@ -29,7 +29,7 @@
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#define testbits(x,m) ((x) & (m))
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#define bitmask(b) (1<<(b))
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#define bit2mask(b1,b2) (bitmask(b1) | bitmask(b2))
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#define setbit(x,b) setbits(x, bitmask(b))
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#define l_setbit(x,b) setbits(x, bitmask(b))
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#define resetbit(x,b) resetbits(x, bitmask(b))
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#define testbit(x,b) testbits(x, bitmask(b))
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#define set2bits(x,b1,b2) setbits(x, (bit2mask(b1, b2)))
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@ -70,7 +70,7 @@
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#define isdead(g,v) ((v)->gch.marked & otherwhite(g) & WHITEBITS)
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#define changewhite(x) ((x)->gch.marked ^= WHITEBITS)
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#define gray2black(x) setbit((x)->gch.marked, BLACKBIT)
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#define gray2black(x) l_setbit((x)->gch.marked, BLACKBIT)
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#define valiswhite(x) (iscollectable(x) && iswhite(gcvalue(x)))
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@ -85,7 +85,7 @@
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luaC_barrierf(L,obj2gco(p),gcvalue(v)); }
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#define luaC_barriert(L,p,v) { if (valiswhite(v) && isblack(obj2gco(p))) \
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luaC_barrierback(L,obj2gco(p),gcvalue(v)); }
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luaC_barrierback(L,obj2gco(p)); }
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#define luaC_objbarrier(L,p,o) \
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{ if (iswhite(obj2gco(o)) && isblack(obj2gco(p))) \
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@ -93,7 +93,7 @@
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#define luaC_objbarriert(L,p,o) \
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{ if (iswhite(obj2gco(o)) && isblack(obj2gco(p))) \
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luaC_barrierback(L,obj2gco(p),obj2gco(o)); }
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luaC_barrierback(L,obj2gco(p)); }
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size_t luaC_separateudata (lua_State *L, int all);
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void luaC_callGCTM (lua_State *L);
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@ -103,7 +103,7 @@ void luaC_fullgc (lua_State *L);
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void luaC_link (lua_State *L, GCObject *o, lu_byte tt);
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void luaC_linkupval (lua_State *L, UpVal *uv);
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void luaC_barrierf (lua_State *L, GCObject *o, GCObject *v);
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void luaC_barrierback (lua_State *L, GCObject *o, GCObject *v);
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void luaC_barrierback (lua_State *L, GCObject *o);
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#endif
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16
lmem.c
16
lmem.c
@ -1,5 +1,5 @@
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/*
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** $Id: lmem.c,v 1.67 2004/12/01 15:46:18 roberto Exp roberto $
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** $Id: lmem.c,v 1.68 2005/01/14 14:21:16 roberto Exp roberto $
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** Interface to Memory Manager
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** See Copyright Notice in lua.h
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*/
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@ -22,19 +22,19 @@
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/*
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** About the realloc function:
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** void * realloc (void *ud, void *ptr, size_t osize, size_t nsize);
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** void * frealloc (void *ud, void *ptr, size_t osize, size_t nsize);
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** (`osize' is the old size, `nsize' is the new size)
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**
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** Lua ensures that (ptr == NULL) iff (osize == 0).
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**
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** * realloc(ud, NULL, 0, x) creates a new block of size `x'
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** * frealloc(ud, NULL, 0, x) creates a new block of size `x'
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**
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** * realloc(ud, p, x, 0) frees the block `p'
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** (in this specific case, realloc must return NULL).
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** particularly, realloc(ud, NULL, 0, 0) does nothing
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** * frealloc(ud, p, x, 0) frees the block `p'
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** (in this specific case, frealloc must return NULL).
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** particularly, frealloc(ud, NULL, 0, 0) does nothing
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** (which is equivalent to free(NULL) in ANSI C)
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**
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** realloc returns NULL if it cannot create or reallocate the area
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** frealloc returns NULL if it cannot create or reallocate the area
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** (any reallocation to an equal or smaller size cannot fail!)
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*/
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@ -76,7 +76,7 @@ void *luaM_toobig (lua_State *L) {
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void *luaM_realloc_ (lua_State *L, void *block, size_t osize, size_t nsize) {
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global_State *g = G(L);
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lua_assert((osize == 0) == (block == NULL));
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block = (*g->realloc)(g->ud, block, osize, nsize);
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block = (*g->frealloc)(g->ud, block, osize, nsize);
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if (block == NULL && nsize > 0)
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luaD_throw(L, LUA_ERRMEM);
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lua_assert((nsize == 0) == (block == NULL));
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6
lstate.c
6
lstate.c
@ -1,5 +1,5 @@
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/*
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** $Id: lstate.c,v 2.23 2005/01/18 17:18:09 roberto Exp roberto $
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** $Id: lstate.c,v 2.24 2005/02/10 13:25:02 roberto Exp roberto $
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** Global State
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** See Copyright Notice in lua.h
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*/
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@ -120,7 +120,7 @@ static void close_state (lua_State *L) {
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luaZ_freebuffer(L, &g->buff);
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freestack(L, L);
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lua_assert(g->totalbytes == sizeof(LG));
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(*g->realloc)(g->ud, fromstate(L), state_size(LG), 0);
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(*g->frealloc)(g->ud, fromstate(L), state_size(LG), 0);
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}
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@ -160,7 +160,7 @@ LUA_API lua_State *lua_newstate (lua_Alloc f, void *ud) {
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L->marked = luaC_white(g);
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set2bits(L->marked, FIXEDBIT, SFIXEDBIT);
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preinit_state(L, g);
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g->realloc = f;
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g->frealloc = f;
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g->ud = ud;
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g->mainthread = L;
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g->uvhead.u.l.prev = &g->uvhead;
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6
lstate.h
6
lstate.h
@ -1,5 +1,5 @@
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/*
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** $Id: lstate.h,v 2.14 2005/02/11 20:03:35 roberto Exp roberto $
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** $Id: lstate.h,v 2.15 2005/02/18 12:40:02 roberto Exp roberto $
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** Global State
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** See Copyright Notice in lua.h
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*/
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@ -67,8 +67,8 @@ typedef struct CallInfo {
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*/
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typedef struct global_State {
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stringtable strt; /* hash table for strings */
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lua_Alloc realloc; /* function to reallocate memory */
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void *ud; /* auxiliary data to `realloc' */
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lua_Alloc frealloc; /* function to reallocate memory */
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void *ud; /* auxiliary data to `frealloc' */
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lu_byte currentwhite;
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lu_byte gcstate; /* state of garbage collector */
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GCObject *rootgc; /* list of all collectable objects */
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@ -1,5 +1,5 @@
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/*
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** $Id: lstring.h,v 1.40 2004/11/19 15:52:40 roberto Exp roberto $
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** $Id: lstring.h,v 1.41 2005/02/18 12:40:02 roberto Exp roberto $
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** String table (keep all strings handled by Lua)
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** See Copyright Notice in lua.h
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*/
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@ -21,7 +21,7 @@
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#define luaS_newliteral(L, s) (luaS_newlstr(L, "" s, \
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(sizeof(s)/sizeof(char))-1))
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#define luaS_fix(s) setbit((s)->tsv.marked, FIXEDBIT)
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#define luaS_fix(s) l_setbit((s)->tsv.marked, FIXEDBIT)
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void luaS_resize (lua_State *L, int newsize);
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Udata *luaS_newudata (lua_State *L, size_t s, Table *e);
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@ -1,5 +1,5 @@
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/*
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** $Id: luaconf.h,v 1.27 2005/01/10 18:33:37 roberto Exp roberto $
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** $Id: luaconf.h,v 1.28 2005/02/10 17:12:02 roberto Exp roberto $
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** Configuration file for Lua
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** See Copyright Notice in lua.h
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*/
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@ -307,7 +307,7 @@ __inline int l_lrint (double flt)
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/* allows user-specific initialization on new threads */
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#define lua_userstateopen(L) /* empty */
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#define lua_userstateopen(L) ((void)0)
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#endif
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@ -325,9 +325,6 @@ __inline int l_lrint (double flt)
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#ifdef LUA_LIB
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/* `assert' options */
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/* environment variables that hold the search path for packages */
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#define LUA_PATH "LUA_PATH"
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#define LUA_CPATH "LUA_CPATH"
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@ -336,7 +333,7 @@ __inline int l_lrint (double flt)
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#define LUA_POF "luaopen_"
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/* separator for open functions in C libraries */
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#define LUA_OFSEP ""
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#define LUA_OFSEP "_"
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/* directory separator (for submodules) */
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#if defined(_WIN32)
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4
lvm.c
4
lvm.c
@ -1,5 +1,5 @@
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/*
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** $Id: lvm.c,v 2.24 2005/02/18 12:40:02 roberto Exp roberto $
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** $Id: lvm.c,v 2.25 2005/02/18 12:50:08 roberto Exp roberto $
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** Lua virtual machine
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** See Copyright Notice in lua.h
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*/
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@ -113,7 +113,7 @@ StkId luaV_gettable (lua_State *L, const TValue *t, TValue *key, StkId val,
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const TValue *tm;
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if (ttistable(t)) { /* `t' is a table? */
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Table *h = hvalue(t);
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const TValue *res = luaH_get(h, key); /* do a primitive set */
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const TValue *res = luaH_get(h, key); /* do a primitive get */
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if (!ttisnil(res) || /* result is no nil? */
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(tm = fasttm(L, h->metatable, TM_INDEX)) == NULL) { /* or no TM? */
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setobj2s(L, val, res);
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