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| #include <lib.h>
#define assert(x) \
do { \
if (!(x)) { \
user_panic("assertion failed: %s", #x); \
} \
} while (0)
void sigint_handler(int sig) {
debugf("sth unexpected happened\n");
exit();
}
int main() {
sigset_t st1, st2, st3, st4;
u_int _st1 = 0x289ca9ed, _st2 = 0xab3cfe27;
assert(sigemptyset(&st1) == 0);
assert(sigemptyset(&st2) == 0);
for(int i = 0; i <= 10; i++) {
if (i != SIG_BLOCK && i != SIG_UNBLOCK && i != SIG_SETMASK) {
assert(sigprocmask(i, &st1, &st2) == -1);
}
}
assert(sigaddset(&st1, 0) == -1);
assert(sigdelset(&st1, 33) == -1);
assert(sigismember(&st1, 321) == -1);
assert(sigisemptyset(&st1) == 1);
assert(sigfillset(&st1) == 0);
for(int i = 0; i < 32; i++) {
if (!(_st1 >> i & 1)) {
assert(sigdelset(&st1, i + 1) == 0);
}
if (_st2 >> i & 1) {
assert(sigaddset(&st2, i + 1) == 0);
}
}
for(int i = 0; i < 32; i++) {
assert(sigismember(&st1, i + 1) == (_st1 >> i & 1));
assert(sigismember(&st2, i + 1) == (_st2 >> i & 1));
}
assert(sigandset(&st3, &st1, &st2) == 0);
for(int i = 0; i < 32; i++) {
assert(sigismember(&st3, i + 1) == ((_st1 & _st2) >> i & 1));
}
assert(sigorset(&st3, &st1, &st2) == 0);
for(int i = 0; i < 32; i++) {
assert(sigismember(&st3, i + 1) == ((_st1 | _st2) >> i & 1));
}
assert(sigprocmask(SIG_BLOCK, NULL, NULL) == 0);
assert(sigprocmask(SIG_BLOCK, &st3, &st4) == 0);
for(int i = 0; i < 32; i++) {
assert(sigismember(&st4, i + 1) == 0);
}
assert(sigprocmask(SIG_UNBLOCK, &st1, &st4) == 0);
for(int i = 0; i < 32; i++) {
assert(sigismember(&st4, i + 1) == ((_st2 | _st1) >> i & 1));
}
assert(sigprocmask(SIG_SETMASK, &st1, &st4) == 0);
for(int i = 0; i < 32; i++) {
assert(sigismember(&st4, i + 1) == ((_st2 & ~_st1) >> i & 1));
}
assert(sigprocmask(SIG_SETMASK, NULL, &st4) == 0);
for(int i = 0; i < 32; i++) {
assert(sigismember(&st4, i + 1) == (_st1 >> i & 1));
}
struct sigaction sa, sa2;
sa.sa_handler = sigint_handler;
assert(sigemptyset(&sa.sa_mask) == 0);
assert(sigaction(SIGSEGV, &sa, NULL) == 0);
assert(sigaction(SIGSEGV, NULL, &sa2) == 0);
assert(sa2.sa_handler == sa.sa_handler);
assert(sigaction(0, &sa, NULL) == -1);
assert(sigaction(33, &sa, NULL) == -1);
assert(sigaction(32, NULL, NULL) == 0);
debugf("Congratulations!\n");
debugf("Congratulations!\n");
debugf("Congratulations!\n");
debugf("Congratulations!\n");
debugf("Congratulations!\n");
debugf("Congratulations!\n");
return 0;
}
|