lgc.h File Reference

#include "lobject.h"

Go to the source code of this file.

Defines

#define GCSpause   0
#define GCSpropagate   1
#define GCSsweepstring   2
#define GCSsweep   3
#define GCSfinalize   4
#define resetbits(x, m)   ((x) &= cast(lu_byte, ~(m)))
#define setbits(x, m)   ((x) |= (m))
#define testbits(x, m)   ((x) & (m))
#define bitmask(b)   (1<<(b))
#define bit2mask(b1, b2)   (bitmask(b1) | bitmask(b2))
#define l_setbit(x, b)   setbits(x, bitmask(b))
#define resetbit(x, b)   resetbits(x, bitmask(b))
#define testbit(x, b)   testbits(x, bitmask(b))
#define set2bits(x, b1, b2)   setbits(x, (bit2mask(b1, b2)))
#define reset2bits(x, b1, b2)   resetbits(x, (bit2mask(b1, b2)))
#define test2bits(x, b1, b2)   testbits(x, (bit2mask(b1, b2)))
#define WHITE0BIT   0
#define WHITE1BIT   1
#define BLACKBIT   2
#define FINALIZEDBIT   3
#define KEYWEAKBIT   3
#define VALUEWEAKBIT   4
#define FIXEDBIT   5
#define SFIXEDBIT   6
#define WHITEBITS   bit2mask(WHITE0BIT, WHITE1BIT)
#define iswhite(x)   test2bits((x)->gch.marked, WHITE0BIT, WHITE1BIT)
#define isblack(x)   testbit((x)->gch.marked, BLACKBIT)
#define isgray(x)   (!isblack(x) && !iswhite(x))
#define otherwhite(g)   (g->currentwhite ^ WHITEBITS)
#define isdead(g, v)   ((v)->gch.marked & otherwhite(g) & WHITEBITS)
#define changewhite(x)   ((x)->gch.marked ^= WHITEBITS)
#define gray2black(x)   l_setbit((x)->gch.marked, BLACKBIT)
#define valiswhite(x)   (iscollectable(x) && iswhite(gcvalue(x)))
#define luaC_white(g)   cast(lu_byte, (g)->currentwhite & WHITEBITS)
#define luaC_checkGC(L)
#define luaC_barrier(L, p, v)
#define luaC_barriert(L, t, v)
#define luaC_objbarrier(L, p, o)
#define luaC_objbarriert(L, t, o)   { if (iswhite(obj2gco(o)) && isblack(obj2gco(t))) luaC_barrierback(L,t); }

Functions

LUAI_FUNC size_t luaC_separateudata (lua_State *L, int all)
LUAI_FUNC void luaC_callGCTM (lua_State *L)
LUAI_FUNC void luaC_freeall (lua_State *L)
LUAI_FUNC void luaC_step (lua_State *L)
LUAI_FUNC void luaC_fullgc (lua_State *L)
LUAI_FUNC void luaC_link (lua_State *L, GCObject *o, lu_byte tt)
LUAI_FUNC void luaC_linkupval (lua_State *L, UpVal *uv)
LUAI_FUNC void luaC_barrierf (lua_State *L, GCObject *o, GCObject *v)
LUAI_FUNC void luaC_barrierback (lua_State *L, Table *t)


Define Documentation

#define bit2mask ( b1,
b2   )     (bitmask(b1) | bitmask(b2))

#define bitmask (  )     (1<<(b))

#define BLACKBIT   2

#define changewhite (  )     ((x)->gch.marked ^= WHITEBITS)

#define FINALIZEDBIT   3

#define FIXEDBIT   5

#define GCSfinalize   4

#define GCSpause   0

#define GCSpropagate   1

#define GCSsweep   3

#define GCSsweepstring   2

#define gray2black (  )     l_setbit((x)->gch.marked, BLACKBIT)

#define isblack (  )     testbit((x)->gch.marked, BLACKBIT)

#define isdead ( g,
 )     ((v)->gch.marked & otherwhite(g) & WHITEBITS)

#define isgray (  )     (!isblack(x) && !iswhite(x))

#define iswhite (  )     test2bits((x)->gch.marked, WHITE0BIT, WHITE1BIT)

#define KEYWEAKBIT   3

#define l_setbit ( x,
 )     setbits(x, bitmask(b))

#define luaC_barrier ( L,
p,
 ) 

Value:

{ if (valiswhite(v) && isblack(obj2gco(p)))  \
        luaC_barrierf(L,obj2gco(p),gcvalue(v)); }

#define luaC_barriert ( L,
t,
 ) 

Value:

{ if (valiswhite(v) && isblack(obj2gco(t)))  \
        luaC_barrierback(L,t); }

#define luaC_checkGC ( L   ) 

Value:

{ \
  condhardstacktests(luaD_reallocstack(L, L->stacksize - EXTRA_STACK - 1)); \
  if (G(L)->totalbytes >= G(L)->GCthreshold) \
        luaC_step(L); }

#define luaC_objbarrier ( L,
p,
 ) 

Value:

{ if (iswhite(obj2gco(o)) && isblack(obj2gco(p))) \
                luaC_barrierf(L,obj2gco(p),obj2gco(o)); }

#define luaC_objbarriert ( L,
t,
 )     { if (iswhite(obj2gco(o)) && isblack(obj2gco(t))) luaC_barrierback(L,t); }

#define luaC_white (  )     cast(lu_byte, (g)->currentwhite & WHITEBITS)

#define otherwhite (  )     (g->currentwhite ^ WHITEBITS)

#define reset2bits ( x,
b1,
b2   )     resetbits(x, (bit2mask(b1, b2)))

#define resetbit ( x,
 )     resetbits(x, bitmask(b))

#define resetbits ( x,
 )     ((x) &= cast(lu_byte, ~(m)))

#define set2bits ( x,
b1,
b2   )     setbits(x, (bit2mask(b1, b2)))

#define setbits ( x,
 )     ((x) |= (m))

#define SFIXEDBIT   6

#define test2bits ( x,
b1,
b2   )     testbits(x, (bit2mask(b1, b2)))

#define testbit ( x,
 )     testbits(x, bitmask(b))

#define testbits ( x,
 )     ((x) & (m))

#define valiswhite (  )     (iscollectable(x) && iswhite(gcvalue(x)))

#define VALUEWEAKBIT   4

#define WHITE0BIT   0

#define WHITE1BIT   1

#define WHITEBITS   bit2mask(WHITE0BIT, WHITE1BIT)


Function Documentation

LUAI_FUNC void luaC_barrierback ( lua_State L,
Table t 
)

LUAI_FUNC void luaC_barrierf ( lua_State L,
GCObject o,
GCObject v 
)

LUAI_FUNC void luaC_callGCTM ( lua_State L  ) 

LUAI_FUNC void luaC_freeall ( lua_State L  ) 

LUAI_FUNC void luaC_fullgc ( lua_State L  ) 

LUAI_FUNC void luaC_link ( lua_State L,
GCObject o,
lu_byte  tt 
)

LUAI_FUNC void luaC_linkupval ( lua_State L,
UpVal uv 
)

LUAI_FUNC size_t luaC_separateudata ( lua_State L,
int  all 
)

LUAI_FUNC void luaC_step ( lua_State L  ) 


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