int main(void){
if(signal(SIGUSR1, sig_func) == SIG_ERR){
perror("signal sigusr1 error");
}
if(signal(SIGUSR2, sig_func) == SIG_ERR){
perror("signal sigusr2 error");
}
printf("before signal occured\n");
sigset_t oset;
sigemptyset(&oset); //集合置空
if(sigprocmask(SIG_BLOCK, NULL, &oset) < 0){
perror("sigprocmask error");
}
out_set(oset);
printf("process %d wait signal\n", getpid());
pause();
printf("after signal occured mask:\n");
sigemptyset(&oset);
if(sigprocmask(SIG_BLOCK, NULL, &oset) < 0){
perror("23333");
}
out_set(oset);
printf("ended\n");
return 0;
}
void sig_func(int signo){
printf("start process signal %d\n", signo);
sigset_t oset;
if(sigprocmask(SIG_BLOCK, NULL, &oset) < 0){ //取信号屏蔽字
perror("sigprocmask error\n");
}
out_set(oset);
}
/** Output for one expression. */
void
YicesSolver::out_expr(std::ostream &o, const SymbolicExpr::Ptr &tn)
{
SymbolicExpr::LeafPtr ln = tn->isLeafNode();
SymbolicExpr::InteriorPtr in = tn->isInteriorNode();
std::string subExprName;
if (termNames.getOptional(tn).assignTo(subExprName)) {
o <<subExprName;
} else if (ln) {
if (ln->isNumber()) {
if (ln->nBits() <= 64) {
o <<"(mk-bv " <<ln->nBits() <<" " <<ln->toInt() <<")";
} else {
o <<"0b" <<ln->bits().toBinary();
}
} else if (ln->isMemory()) {
o <<"m" <<ln->nameId();
} else {
ASSERT_require(ln->isVariable());
o <<"v" <<ln->nameId();
}
} else {
ASSERT_not_null(in);
switch (in->getOperator()) {
case SymbolicExpr::OP_ADD: out_la(o, "bv-add", in, false); break;
case SymbolicExpr::OP_AND: out_la(o, "and", in, true); break;
case SymbolicExpr::OP_ASR: out_asr(o, in); break;
case SymbolicExpr::OP_BV_AND: out_la(o, "bv-and", in, true); break;
case SymbolicExpr::OP_BV_OR: out_la(o, "bv-or", in, false); break;
case SymbolicExpr::OP_BV_XOR: out_la(o, "bv-xor", in, false); break;
case SymbolicExpr::OP_EQ: out_binary(o, "=", in); break;
case SymbolicExpr::OP_CONCAT: out_la(o, "bv-concat", in); break;
case SymbolicExpr::OP_EXTRACT: out_extract(o, in); break;
case SymbolicExpr::OP_INVERT: out_unary(o, "bv-not", in); break;
case SymbolicExpr::OP_ITE: out_ite(o, in); break;
case SymbolicExpr::OP_LSSB: throw Exception("OP_LSSB not implemented");
case SymbolicExpr::OP_MSSB: throw Exception("OP_MSSB not implemented");
case SymbolicExpr::OP_NE: out_binary(o, "/=", in); break;
case SymbolicExpr::OP_NEGATE: out_unary(o, "bv-neg", in); break;
case SymbolicExpr::OP_NOOP: o<<"0b1"; break;
case SymbolicExpr::OP_OR: out_la(o, "or", in, false); break;
case SymbolicExpr::OP_READ: out_read(o, in); break;
case SymbolicExpr::OP_ROL: throw Exception("OP_ROL not implemented");
case SymbolicExpr::OP_ROR: throw Exception("OP_ROR not implemented");
case SymbolicExpr::OP_SDIV: throw Exception("OP_SDIV not implemented");
case SymbolicExpr::OP_SET: out_set(o, in); break;
case SymbolicExpr::OP_SEXTEND: out_sext(o, in); break;
case SymbolicExpr::OP_SLT: out_binary(o, "bv-slt", in); break;
case SymbolicExpr::OP_SLE: out_binary(o, "bv-sle", in); break;
case SymbolicExpr::OP_SHL0: out_shift(o, "bv-shift-left", in, false); break;
case SymbolicExpr::OP_SHL1: out_shift(o, "bv-shift-left", in, true); break;
case SymbolicExpr::OP_SHR0: out_shift(o, "bv-shift-right", in, false); break;
case SymbolicExpr::OP_SHR1: out_shift(o, "bv-shift-right", in, true); break;
case SymbolicExpr::OP_SGE: out_binary(o, "bv-sge", in); break;
case SymbolicExpr::OP_SGT: out_binary(o, "bv-sgt", in); break;
case SymbolicExpr::OP_SMOD: throw Exception("OP_SMOD not implemented");
case SymbolicExpr::OP_SMUL: out_mult(o, in); break;
case SymbolicExpr::OP_UDIV: throw Exception("OP_UDIV not implemented");
case SymbolicExpr::OP_UEXTEND: out_uext(o, in); break;
case SymbolicExpr::OP_UGE: out_binary(o, "bv-ge", in); break;
case SymbolicExpr::OP_UGT: out_binary(o, "bv-gt", in); break;
case SymbolicExpr::OP_ULE: out_binary(o, "bv-le", in); break;
case SymbolicExpr::OP_ULT: out_binary(o, "bv-lt", in); break;
case SymbolicExpr::OP_UMOD: throw Exception("OP_UMOD not implemented");
case SymbolicExpr::OP_UMUL: out_mult(o, in); break;
case SymbolicExpr::OP_WRITE: out_write(o, in); break;
case SymbolicExpr::OP_ZEROP: out_zerop(o, in); break;
}
}
}
