BIF_RETTYPE delete_module_1(BIF_ALIST_1)
{
ErtsCodeIndex code_ix;
Module* modp;
int is_blocking = 0;
int success = 0;
Eterm res = NIL;
if (is_not_atom(BIF_ARG_1)) {
BIF_ERROR(BIF_P, BADARG);
}
if (!erts_try_seize_code_write_permission(BIF_P)) {
ERTS_BIF_YIELD1(bif_export[BIF_delete_module_1], BIF_P, BIF_ARG_1);
}
{
erts_start_staging_code_ix(0);
code_ix = erts_staging_code_ix();
modp = erts_get_module(BIF_ARG_1, code_ix);
if (!modp) {
res = am_undefined;
}
else if (modp->old.code_hdr) {
erts_dsprintf_buf_t *dsbufp = erts_create_logger_dsbuf();
erts_dsprintf(dsbufp, "Module %T must be purged before loading\n",
BIF_ARG_1);
erts_send_error_to_logger(BIF_P->group_leader, dsbufp);
ERTS_BIF_PREP_ERROR(res, BIF_P, BADARG);
}
else {
if (modp->curr.num_breakpoints > 0 ||
modp->curr.num_traced_exports > 0 ||
IF_HIPE(hipe_need_blocking(modp))) {
/* tracing or hipe need to go single threaded */
erts_smp_proc_unlock(BIF_P, ERTS_PROC_LOCK_MAIN);
erts_smp_thr_progress_block();
is_blocking = 1;
if (modp->curr.num_breakpoints) {
erts_clear_module_break(modp);
ASSERT(modp->curr.num_breakpoints == 0);
}
}
delete_code(modp);
res = am_true;
success = 1;
}
}
{
struct m mod;
Eterm retval;
mod.module = BIF_ARG_1;
mod.modp = modp;
retval = staging_epilogue(BIF_P, success, res, is_blocking, &mod, 1, 0);
return retval;
}
}
Eterm
beam_make_current_old(Process *c_p, ErtsProcLocks c_p_locks, Eterm module)
{
Module* modp = erts_put_module(module);
/*
* Check if the previous code has been already deleted;
* if not, delete old code; error if old code already exists.
*/
if (modp->curr.code_hdr && modp->old.code_hdr) {
return am_not_purged;
} else if (!modp->old.code_hdr) { /* Make the current version old. */
delete_code(modp);
}
return NIL;
}
int
beam_make_current_old(Process *c_p, ErtsProcLocks c_p_locks, Eterm module)
{
Module* modp = erts_put_module(module);
/*
* Check if the previous code has been already deleted;
* if not, delete old code; error if old code already exists.
*/
if (modp->code != NULL && modp->old_code != NULL) {
return -3;
} else if (modp->old_code == NULL) { /* Make the current version old. */
if (display_loads) {
erts_printf("saving old code\n");
}
delete_code(c_p, c_p_locks, modp);
delete_export_references(module);
}
return 0;
}
BIF_RETTYPE delete_module_1(BIF_ALIST_1)
{
int res;
if (is_not_atom(BIF_ARG_1))
goto badarg;
erts_smp_proc_unlock(BIF_P, ERTS_PROC_LOCK_MAIN);
erts_smp_block_system(0);
{
Module *modp = erts_get_module(BIF_ARG_1);
if (!modp) {
res = am_undefined;
}
else if (modp->old_code != 0) {
erts_dsprintf_buf_t *dsbufp = erts_create_logger_dsbuf();
erts_dsprintf(dsbufp, "Module %T must be purged before loading\n",
BIF_ARG_1);
erts_send_error_to_logger(BIF_P->group_leader, dsbufp);
res = am_badarg;
}
else {
delete_export_references(BIF_ARG_1);
delete_code(BIF_P, 0, modp);
res = am_true;
}
}
erts_smp_release_system();
erts_smp_proc_lock(BIF_P, ERTS_PROC_LOCK_MAIN);
if (res == am_badarg) {
badarg:
BIF_ERROR(BIF_P, BADARG);
}
BIF_RET(res);
}
void gen(int param, int op, int pa)
{
optimizado = 0;
switch (op)
{
case lcar:
if (code[15].op == lcar)
{
code[15].op = mem[imem - 2] = lcar2;
code[15].param = 2;
mem[imem++] = pa;
optimizado = 1;
}
else if (code[15].op == lcar2)
{
code[15].op = mem[imem - 3] = lcar3;
code[15].param = 3;
mem[imem++] = pa;
optimizado = 1;
}
else if (code[15].op == lcar3)
{
code[15].op = mem[imem - 4] = lcar4;
code[15].param = 4;
mem[imem++] = pa;
optimizado = 1;
}
break;
case lasp:
if (code[15].op == lasi)
{
if (code[14].op == lcar)
{
remove_code(1);
code[15].op = mem[imem - 2] = lcarasiasp;
}
else
{
code[15].op = mem[imem - 1] = lasiasp;
optimizado = 1;
}
}
else if (code[15].op == lfun)
{
code[15].op = mem[imem - 2] = lfunasp;
optimizado = 1;
}
else if (code[15].op == lext)
{
code[15].op = mem[imem - 2] = lextasp;
optimizado = 1;
}
break;
case laid:
if (code[15].op == lcar)
{
code[15].op = mem[imem - 2] = lcaraid;
optimizado = 1;
}
break;
case lptr:
if (code[15].op == lcar)
{
code[15].op = mem[imem - 2] = lcarptr;
optimizado = 1;
}
else if (code[15].op == lcaradd)
{
code[15].op = mem[imem - 2] = lcaraddptr;
optimizado = 1;
}
else if (code[15].op == laid)
{
code[15].op = mem[imem - 1] = laidptr;
optimizado = 1;
}
else if (code[15].op == ladd)
{
code[15].op = mem[imem - 1] = laddptr;
optimizado = 1;
}
else if (code[15].op == lcaraid)
{
code[15].op = mem[imem - 2] = lcaraidptr;
optimizado = 1;
}
break;
case lcpa:
if (code[15].op == lcaraid)
{
code[15].op = mem[imem - 2] = lcaraidcpa;
optimizado = 1;
}
break;
case ladd:
if (code[15].op == lcar2)
{
code[15].op = mem[imem - 3] = lcar;
code[15].param = 1;
mem[imem - 2] += mem[imem - 1];
imem--;
optimizado = 1;
}
else if (code[15].op == lcar3)
{
code[15].op = mem[imem - 4] = lcar2;
code[15].param = 2;
mem[imem - 2] += mem[imem - 1];
imem--;
optimizado = 1;
}
else if (code[15].op == lcar4)
{
code[15].op = mem[imem - 5] = lcar3;
code[15].param = 3;
mem[imem - 2] += mem[imem - 1];
imem--;
optimizado = 1;
}
else if (code[15].op == lcar)
{
if (mem[imem - 1] == 0)
remove_code(1);
else
{
code[15].op = mem[imem - 2] = lcaradd;
optimizado = 1;
}
}
else if (code[15].op == lcarmul)
{
code[15].op = mem[imem - 2] = lcarmuladd;
optimizado = 1;
}
break;
case lmul:
if (code[15].op == lcar2)
{
code[15].op = mem[imem - 3] = lcar;
code[15].param = 1;
mem[imem - 2] *= mem[imem - 1];
imem--;
optimizado = 1;
}
else if (code[15].op == lcar3)
{
code[15].op = mem[imem - 4] = lcar2;
code[15].param = 2;
mem[imem - 2] *= mem[imem - 1];
imem--;
optimizado = 1;
}
else if (code[15].op == lcar4)
{
code[15].op = mem[imem - 5] = lcar3;
code[15].param = 3;
mem[imem - 2] *= mem[imem - 1];
imem--;
optimizado = 1;
}
else if (code[15].op == lcar)
{
if (mem[imem - 1] == 1)
remove_code(1);
else
{
code[15].op = mem[imem - 2] = lcarmul;
optimizado = 1;
}
}
break;
case lsub:
if (code[15].op == lcar2)
{
code[15].op = mem[imem - 3] = lcar;
code[15].param = 1;
mem[imem - 2] -= mem[imem - 1];
imem--;
optimizado = 1;
}
else if (code[15].op == lcar3)
{
code[15].op = mem[imem - 4] = lcar2;
code[15].param = 2;
mem[imem - 2] -= mem[imem - 1];
imem--;
optimizado = 1;
}
else if (code[15].op == lcar4)
{
code[15].op = mem[imem - 5] = lcar3;
code[15].param = 3;
mem[imem - 2] -= mem[imem - 1];
imem--;
optimizado = 1;
}
else if (code[15].op == lcar)
{
if (mem[imem - 1] == 0)
remove_code(1);
else
{
code[15].op = mem[imem - 2] = lcarsub;
optimizado = 1;
}
}
break;
case ldiv:
if (code[15].op == lcar2)
{
if (mem[imem - 1] != 0)
{
code[15].op = mem[imem - 3] = lcar;
code[15].param = 1;
mem[imem - 2] /= mem[imem - 1];
imem--;
optimizado = 1;
}
}
else if (code[15].op == lcar3)
{
if (mem[imem - 1] != 0)
{
code[15].op = mem[imem - 4] = lcar2;
code[15].param = 2;
mem[imem - 2] /= mem[imem - 1];
imem--;
optimizado = 1;
}
}
else if (code[15].op == lcar4)
{
if (mem[imem - 1] != 0)
{
code[15].op = mem[imem - 5] = lcar3;
code[15].param = 3;
mem[imem - 2] /= mem[imem - 1];
imem--;
optimizado = 1;
}
}
else if (code[15].op == lcar)
{
if (mem[imem - 1] == 1)
remove_code(1);
else if (mem[imem - 1] != 0)
{
code[15].op = mem[imem - 2] = lcardiv; /* Un cardiv nunca será "cardiv 0" */
optimizado = 1;
}
}
break;
case lneg:
if (code[15].op == lcar || code[15].op == lcar2 || code[15].op == lcar3 || code[15].op == lcar4)
{
mem[imem - 1] = -mem[imem - 1];
optimizado = 1;
}
break;
case lnot:
if (code[15].op == lcar || code[15].op == lcar2 || code[15].op == lcar3 || code[15].op == lcar4)
{
mem[imem - 1] = mem[imem - 1] ^ -1;
optimizado = 1;
}
break;
}
if (!optimizado)
{
if (imem - code[15].dir > 2)
delete_code();
add_code(imem, param, op);
if (param)
{
mem[imem++] = op;
mem[imem++] = pa;
}
else
mem[imem++] = op;
}
}
