int main(void)
{
if (!xpost_init())
{
fprintf(stderr, "Fail to initialize xpost dict test\n");
return -1;
}
init();
printf("\n^test gc.c\n");
ctx = &itpdata->ctab[0];
mem = ctx->lo;
stac = ctx->os;
xpost_stack_push(mem, stac, xpost_int_cons(5));
xpost_stack_push(mem, stac, xpost_int_cons(6));
xpost_stack_push(mem, stac, xpost_real_cons(7.0));
Xpost_Object ar;
ar = xpost_array_cons_memory(mem, 3);
int i;
for (i=0; i < 3; i++)
xpost_array_put_memory(mem, ar, i, xpost_stack_pop(mem, stac));
xpost_stack_push(mem, stac, ar); /* array on stack */
xpost_stack_push(mem, stac, xpost_int_cons(1));
xpost_stack_push(mem, stac, xpost_int_cons(2));
xpost_stack_push(mem, stac, xpost_int_cons(3));
ar = xpost_array_cons_memory(mem, 3);
for (i=0; i < 3; i++)
xpost_array_put_memory(mem, ar, i, xpost_stack_pop(mem, stac));
xpost_object_dump(ar);
/* array not on stack */
#define CNT_STR(x) sizeof(x), x
xpost_stack_push(mem, stac, xpost_string_cons_memory(mem, CNT_STR("string on stack")));
xpost_object_dump(xpost_string_cons_memory(mem, CNT_STR("string not on stack")));
collect(mem);
xpost_stack_push(mem, stac, xpost_string_cons_memory(mem, CNT_STR("string on stack")));
xpost_object_dump(xpost_string_cons_memory(mem, CNT_STR("string not on stack")));
collect(mem);
xpost_memory_file_dump(mem);
printf("stackaedr: %04x\n", stac);
dumpmtab(mem, 0);
/* ^ent 8 (8): adr 3404 0x0d4c, sz [24], mark _ */
/* ^ 06 00 00 00 6en 67g 20 6en 6fo 74t 20 */
printf("gc: look at the mark field . . . . . . . .^\n");
printf("also, see that the first 4 bytes of strings not on stack\n"
"have been obliterated to link-up the free list.\n");
xpost_quit();
}
/* initialize the name special entities XPOST_MEMORY_TABLE_SPECIAL_NAME_STACK, NAME_TREE */
int xpost_name_init(Xpost_Context *ctx)
{
Xpost_Memory_Table *tab;
unsigned int ent;
unsigned int t;
unsigned int mode;
unsigned int nstk;
int ret;
mode = ctx->vmmode;
ctx->vmmode = GLOBAL;
ret = xpost_memory_table_alloc(ctx->gl, 0, 0, &ent); //gl:NAMES
if (!ret)
{
return 0;
}
//assert(ent == XPOST_MEMORY_TABLE_SPECIAL_NAME_STACK);
if (ent != XPOST_MEMORY_TABLE_SPECIAL_NAME_STACK)
XPOST_LOG_ERR("Warning: name stack is not in special position");
ret = xpost_memory_table_alloc(ctx->gl, 0, 0, &ent); //gl:NAMET
if (!ret)
{
return 0;
}
//assert(ent == XPOST_MEMORY_TABLE_SPECIAL_NAME_TREE);
if (ent != XPOST_MEMORY_TABLE_SPECIAL_NAME_TREE)
XPOST_LOG_ERR("Warning: name tree is not in special position");
xpost_stack_init(ctx->gl, &t);
tab = &ctx->gl->table; //recalc pointer
tab->tab[XPOST_MEMORY_TABLE_SPECIAL_NAME_STACK].adr = t;
tab->tab[XPOST_MEMORY_TABLE_SPECIAL_NAME_TREE].adr = 0;
xpost_memory_table_get_addr(ctx->gl,
XPOST_MEMORY_TABLE_SPECIAL_NAME_STACK, &nstk);
xpost_stack_push(ctx->gl, nstk, xpost_string_cons(ctx, CNT_STR("_not_a_name_")));
assert (xpost_object_get_ent(xpost_stack_topdown_fetch(ctx->gl, nstk, 0)) == XPOST_MEMORY_TABLE_SPECIAL_BOGUS_NAME);
ctx->vmmode = LOCAL;
ret = xpost_memory_table_alloc(ctx->lo, 0, 0, &ent); //lo:NAMES
if (!ret)
{
return 0;
}
//assert(ent == XPOST_MEMORY_TABLE_SPECIAL_NAME_STACK);
if (ent != XPOST_MEMORY_TABLE_SPECIAL_NAME_STACK)
XPOST_LOG_ERR("Warning: name stack is not in special position");
ret = xpost_memory_table_alloc(ctx->lo, 0, 0, &ent); //lo:NAMET
if (!ret)
{
return 0;
}
//assert(ent == XPOST_MEMORY_TABLE_SPECIAL_NAME_TREE);
if (ent != XPOST_MEMORY_TABLE_SPECIAL_NAME_TREE)
XPOST_LOG_ERR("Warning: name tree is not in special position");
xpost_stack_init(ctx->lo, &t);
tab = &ctx->lo->table; //recalc pointer
tab->tab[XPOST_MEMORY_TABLE_SPECIAL_NAME_STACK].adr = t;
tab->tab[XPOST_MEMORY_TABLE_SPECIAL_NAME_TREE].adr = 0;
xpost_memory_table_get_addr(ctx->lo,
XPOST_MEMORY_TABLE_SPECIAL_NAME_STACK, &nstk);
xpost_stack_push(ctx->lo, nstk, xpost_string_cons(ctx, CNT_STR("_not_a_name_")));
//assert (xpost_object_get_ent(xpost_stack_topdown_fetch(ctx->lo, nstk, 0)) == XPOST_MEMORY_TABLE_SPECIAL_BOGUS_NAME);
if (xpost_object_get_ent(xpost_stack_topdown_fetch(ctx->lo, nstk, 0)) != XPOST_MEMORY_TABLE_SPECIAL_BOGUS_NAME)
XPOST_LOG_ERR("Warning: bogus name not in special position");
ctx->vmmode = mode;
return 1;
}
