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Make metamethod names proper GC roots.

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This commit is contained in:
Mike Pall
2010-04-25 18:35:47 +02:00
parent 87e4daf89c
commit ef0904e80b
12 changed files with 26 additions and 29 deletions
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10
src/lj_obj.h
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@@ -537,15 +537,18 @@ MMDEF(MMENUM)
/* GC root IDs. */
typedef enum {
GCROOT_MMNAME, /* Metamethod names. */
GCROOT_MMNAME_LAST = GCROOT_MMNAME + MM_MAX-1,
GCROOT_BASEMT, /* Metatables for base types. */
GCROOT_BASEMT_NUM = ~LJ_TNUMX, /* Last base metatable. */
GCROOT_BASEMT_NUM = GCROOT_BASEMT + ~LJ_TNUMX,
GCROOT_IO_INPUT, /* Userdata for default I/O input file. */
GCROOT_IO_OUTPUT, /* Userdata for default I/O output file. */
GCROOT__MAX
GCROOT_MAX
} GCRootID;
#define basemt_it(g, it) ((g)->gcroot[GCROOT_BASEMT+~(it)])
#define basemt_obj(g, o) ((g)->gcroot[GCROOT_BASEMT+itypemap(o)])
#define mmname_str(g, mm) (strref((g)->gcroot[GCROOT_MMNAME+(mm)]))
typedef struct GCState {
MSize total; /* Memory currently allocated. */
@@ -595,8 +598,7 @@ typedef struct global_State {
BCIns bc_cfunc_ext; /* Bytecode for external C function calls. */
GCRef jit_L; /* Current JIT code lua_State or NULL. */
MRef jit_base; /* Current JIT code L->base. */
GCRef gcroot[GCROOT__MAX]; /* GC roots. */
GCRef mmname[MM_MAX]; /* Array holding metamethod names. */
GCRef gcroot[GCROOT_MAX]; /* GC roots. */
} global_State;
#define mainthread(g) (&gcref(g->mainthref)->th)