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|
use libc::_exit;
use nix::errno::Errno;
use nix::sys::signal::*;
use nix::sys::wait::*;
use nix::unistd::ForkResult::*;
use nix::unistd::*;
#[test]
#[cfg(not(any(target_os = "redox", target_os = "haiku")))]
fn test_wait_signal() {
let _m = crate::FORK_MTX.lock();
// Safe: The child only calls `pause` and/or `_exit`, which are async-signal-safe.
match unsafe { fork() }.expect("Error: Fork Failed") {
Child => {
pause();
unsafe { _exit(123) }
}
Parent { child } => {
kill(child, Some(SIGKILL)).expect("Error: Kill Failed");
assert_eq!(
waitpid(child, None),
Ok(WaitStatus::Signaled(child, SIGKILL, false))
);
}
}
}
#[test]
#[cfg(any(
target_os = "android",
target_os = "freebsd",
//target_os = "haiku",
all(target_os = "linux", not(target_env = "uclibc")),
))]
#[cfg(not(any(
target_arch = "mips",
target_arch = "mips32r6",
target_arch = "mips64",
target_arch = "mips64r6"
)))]
fn test_waitid_signal() {
let _m = crate::FORK_MTX.lock();
// Safe: The child only calls `pause` and/or `_exit`, which are async-signal-safe.
match unsafe { fork() }.expect("Error: Fork Failed") {
Child => {
pause();
unsafe { _exit(123) }
}
Parent { child } => {
kill(child, Some(SIGKILL)).expect("Error: Kill Failed");
assert_eq!(
waitid(Id::Pid(child), WaitPidFlag::WEXITED),
Ok(WaitStatus::Signaled(child, SIGKILL, false)),
);
}
}
}
#[test]
fn test_wait_exit() {
let _m = crate::FORK_MTX.lock();
// Safe: Child only calls `_exit`, which is async-signal-safe.
match unsafe { fork() }.expect("Error: Fork Failed") {
Child => unsafe {
_exit(12);
},
Parent { child } => {
assert_eq!(waitpid(child, None), Ok(WaitStatus::Exited(child, 12)));
}
}
}
#[cfg(not(target_os = "haiku"))]
#[test]
#[cfg(any(
target_os = "android",
target_os = "freebsd",
target_os = "haiku",
all(target_os = "linux", not(target_env = "uclibc")),
))]
#[cfg(not(any(
target_arch = "mips",
target_arch = "mips32r6",
target_arch = "mips64",
target_arch = "mips64r6"
)))]
fn test_waitid_exit() {
let _m = crate::FORK_MTX.lock();
// Safe: Child only calls `_exit`, which is async-signal-safe.
match unsafe { fork() }.expect("Error: Fork Failed") {
Child => unsafe {
_exit(12);
},
Parent { child } => {
assert_eq!(
waitid(Id::Pid(child), WaitPidFlag::WEXITED),
Ok(WaitStatus::Exited(child, 12)),
);
}
}
}
#[test]
fn test_waitstatus_from_raw() {
let pid = Pid::from_raw(1);
assert_eq!(
WaitStatus::from_raw(pid, 0x0002),
Ok(WaitStatus::Signaled(pid, Signal::SIGINT, false))
);
assert_eq!(
WaitStatus::from_raw(pid, 0x0200),
Ok(WaitStatus::Exited(pid, 2))
);
assert_eq!(WaitStatus::from_raw(pid, 0x7f7f), Err(Errno::EINVAL));
}
#[test]
fn test_waitstatus_pid() {
let _m = crate::FORK_MTX.lock();
match unsafe { fork() }.unwrap() {
Child => unsafe { _exit(0) },
Parent { child } => {
let status = waitpid(child, None).unwrap();
assert_eq!(status.pid(), Some(child));
}
}
}
#[test]
#[cfg(any(
target_os = "android",
target_os = "freebsd",
target_os = "haiku",
all(target_os = "linux", not(target_env = "uclibc")),
))]
fn test_waitid_pid() {
let _m = crate::FORK_MTX.lock();
match unsafe { fork() }.unwrap() {
Child => unsafe { _exit(0) },
Parent { child } => {
let status = waitid(Id::Pid(child), WaitPidFlag::WEXITED).unwrap();
assert_eq!(status.pid(), Some(child));
}
}
}
#[cfg(linux_android)]
// FIXME: qemu-user doesn't implement ptrace on most arches
#[cfg(any(target_arch = "x86", target_arch = "x86_64"))]
mod ptrace {
use crate::*;
use libc::_exit;
use nix::sys::ptrace::{self, Event, Options};
use nix::sys::signal::*;
use nix::sys::wait::*;
use nix::unistd::ForkResult::*;
use nix::unistd::*;
fn ptrace_child() -> ! {
ptrace::traceme().unwrap();
// As recommended by ptrace(2), raise SIGTRAP to pause the child
// until the parent is ready to continue
raise(SIGTRAP).unwrap();
unsafe { _exit(0) }
}
fn ptrace_wait_parent(child: Pid) {
// Wait for the raised SIGTRAP
assert_eq!(
waitpid(child, None),
Ok(WaitStatus::Stopped(child, SIGTRAP))
);
// We want to test a syscall stop and a PTRACE_EVENT stop
ptrace::setoptions(
child,
Options::PTRACE_O_TRACESYSGOOD | Options::PTRACE_O_TRACEEXIT,
)
.expect("setoptions failed");
// First, stop on the next system call, which will be exit()
ptrace::syscall(child, None).expect("syscall failed");
assert_eq!(waitpid(child, None), Ok(WaitStatus::PtraceSyscall(child)));
// Then get the ptrace event for the process exiting
ptrace::cont(child, None).expect("cont failed");
assert_eq!(
waitpid(child, None),
Ok(WaitStatus::PtraceEvent(
child,
SIGTRAP,
Event::PTRACE_EVENT_EXIT as i32
))
);
// Finally get the normal wait() result, now that the process has exited
ptrace::cont(child, None).expect("cont failed");
assert_eq!(waitpid(child, None), Ok(WaitStatus::Exited(child, 0)));
}
#[cfg(not(target_env = "uclibc"))]
fn ptrace_waitid_parent(child: Pid) {
// Wait for the raised SIGTRAP
//
// Unlike waitpid(), waitid() can distinguish trap events from regular
// stop events, so unlike ptrace_wait_parent(), we get a PtraceEvent here
assert_eq!(
waitid(Id::Pid(child), WaitPidFlag::WEXITED),
Ok(WaitStatus::PtraceEvent(child, SIGTRAP, 0)),
);
// We want to test a syscall stop and a PTRACE_EVENT stop
ptrace::setoptions(
child,
Options::PTRACE_O_TRACESYSGOOD | Options::PTRACE_O_TRACEEXIT,
)
.expect("setopts failed");
// First, stop on the next system call, which will be exit()
ptrace::syscall(child, None).expect("syscall failed");
assert_eq!(
waitid(Id::Pid(child), WaitPidFlag::WEXITED),
Ok(WaitStatus::PtraceSyscall(child)),
);
// Then get the ptrace event for the process exiting
ptrace::cont(child, None).expect("cont failed");
assert_eq!(
waitid(Id::Pid(child), WaitPidFlag::WEXITED),
Ok(WaitStatus::PtraceEvent(
child,
SIGTRAP,
Event::PTRACE_EVENT_EXIT as i32
)),
);
// Finally get the normal wait() result, now that the process has exited
ptrace::cont(child, None).expect("cont failed");
assert_eq!(
waitid(Id::Pid(child), WaitPidFlag::WEXITED),
Ok(WaitStatus::Exited(child, 0)),
);
}
#[test]
fn test_wait_ptrace() {
require_capability!("test_wait_ptrace", CAP_SYS_PTRACE);
let _m = crate::FORK_MTX.lock();
match unsafe { fork() }.expect("Error: Fork Failed") {
Child => ptrace_child(),
Parent { child } => ptrace_wait_parent(child),
}
}
#[test]
#[cfg(not(target_env = "uclibc"))]
fn test_waitid_ptrace() {
require_capability!("test_waitid_ptrace", CAP_SYS_PTRACE);
let _m = crate::FORK_MTX.lock();
match unsafe { fork() }.expect("Error: Fork Failed") {
Child => ptrace_child(),
Parent { child } => ptrace_waitid_parent(child),
}
}
}
|
