Samuka007/asterinas
1
0
Fork 0
mirror of https://github.com/asterinas/asterinas.git synced 2025-07-11 08:33:25 +00:00
Code Issues Packages Projects Releases Wiki Activity

Add syscall rt_sigpending

Browse Source
This commit is contained in:
anbo
2024-06-03 15:03:15 +08:00
committed by Tate, Hongliang Tian
parent 6c34db52b3
commit 901bccadfe
8 changed files with 167 additions and 5 deletions
docs/src/kernel
linux-compatibility.md
kernel/aster-nix/src
process
posix_thread
mod.rs
signal
sig_mask.rssig_queues.rs
syscall
arch
x86.rs
mod.rsrt_sigpending.rs
regression/apps/signal_c
signal_test.c

90
regression/apps/signal_c/signal_test.c

@ -364,6 +364,95 @@ int test_sigaltstack()
return 0;
}
// ============================================================================
// Test sigpending
// ============================================================================
int test_sigpending()
{
int ret;
// Set up signal handler for SIGSEGV and SIGIO
struct sigaction new_action, old_sigsegv_action, old_sigio_action;
memset(&new_action, 0, sizeof(struct sigaction));
memset(&old_sigsegv_action, 0, sizeof(struct sigaction));
new_action.sa_sigaction = handle_sigsegv;
new_action.sa_flags = SA_SIGINFO;
if (sigaction(SIGSEGV, &new_action, &old_sigsegv_action) < 0) {
THROW_ERROR("registering new signal handler failed");
}
if (old_sigsegv_action.sa_handler != SIG_DFL) {
THROW_ERROR("unexpected old sig handler");
}
memset(&new_action, 0, sizeof(struct sigaction));
memset(&old_sigio_action, 0, sizeof(struct sigaction));
new_action.sa_sigaction = handle_sigio;
new_action.sa_flags = SA_SIGINFO | SA_NODEFER;
if (sigaction(SIGIO, &new_action, &old_sigio_action) < 0) {
THROW_ERROR("registering new signal handler failed");
}
if (old_sigio_action.sa_handler != SIG_DFL) {
THROW_ERROR("unexpected old sig handler");
}
// Block SIGSEGV and SIGIO
sigset_t new_set, old_set, pending_set;
sigfillset(&new_set);
sigaddset(&new_set, SIGSEGV);
sigaddset(&new_set, SIGIO);
if ((ret = sigprocmask(SIG_BLOCK, &new_set, &old_set)) < 0) {
THROW_ERROR("sigprocmask failed unexpectedly");
}
// Send SIGSEGV and SIGIO signals to the current process twice
kill(getpid(), SIGSEGV);
kill(getpid(), SIGSEGV); // Repeat
kill(getpid(), SIGIO);
kill(getpid(), SIGIO); // Repeat
// Check for pending signals
if (sigpending(&pending_set) < 0) {
THROW_ERROR("sigpending failed unexpectedly");
}
if (!sigismember(&pending_set, SIGSEGV)) {
THROW_ERROR("SIGSEGV is not pending");
}
if (!sigismember(&pending_set, SIGIO)) {
THROW_ERROR("SIGIO (real-time signal) is not pending");
}
// Unblock all signals and check if pending signals are cleared
if (sigprocmask(SIG_SETMASK, &old_set, NULL) < 0) {
THROW_ERROR(
"sigprocmask failed unexpectedly, failed to restore signal mask");
}
// Fetch and check pending signals after unblocking
if (sigpending(&pending_set) < 0) {
THROW_ERROR("sigpending failed unexpectedly");
}
if (sigismember(&pending_set, SIGSEGV)) {
THROW_ERROR("SIGSEGV is pending");
}
if (sigismember(&pending_set, SIGIO)) {
THROW_ERROR("SIGIO (real-time signal) is pending");
}
// Restore old sigaction
if (sigaction(SIGSEGV, &old_sigsegv_action, NULL) < 0) {
THROW_ERROR("restoring old signal handler failed");
}
if (sigaction(SIGIO, &old_sigio_action, NULL) < 0) {
THROW_ERROR("restoring old signal handler failed");
}
return 0;
}
int main()
{
test_sigprocmask();
@ -372,5 +461,6 @@ int main()
test_handle_sigsegv();
test_sigchld();
test_sigaltstack();
test_sigpending();
return 0;
}