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#[macro_export]
macro_rules! ftok {
() => ({
extern crate shm;
ftok!(shm::ffi::TOK_PATHNAME)
});
($pathname: expr) => ({
extern crate shm;
match unsafe {
shm::ffi::ftok (
$pathname.as_ptr() as *mut i8,
shm::ffi::TOK_PROJ_ID as i32
)
} {
-1 => None,
key => Some(key as u64),
}
});
}
#[macro_export]
macro_rules! shmget {
($key: expr, $flag: expr, $size: expr) => ({
extern crate shm;
match unsafe {
shm::ffi::shmget (
$key as i32,
$size as u64,
$flag as i32
)
} {
-1 => None,
key => Some(key as i32),
}
});
}
#[macro_export]
macro_rules! shmget_id {
($key: expr, $size: expr) => ({
match shmget! (
$key,
0o0666 | shm::ffi::Ipc::CREAT as i32
| shm::ffi::Ipc::EXCL as i32,
$size
) {
Some(id) => Some(id),
None => shmget! (
$key,
0o0666,
$size
),
}
});
}
#[macro_export]
macro_rules! shmat {
($id: expr) => ({
extern crate std;
shmat!($id, std::ptr::null_mut(), 0)
});
($id: expr, $addr: expr) => ({
shmat!($id, $addr, 0)
});
($id: expr, $addr: expr, $flag: expr) => ({
extern crate shm;
match unsafe {
shm::ffi::shmat (
$id as i32,
$addr,
$flag as i32,
)
} {
addr if addr.is_null() => None,
addr => Some(addr),
}
});
}
#[macro_export]
macro_rules! shmdt {
($addr: expr) => ({
extern crate shm;
match unsafe {
shm::ffi::shmdt (
$addr
)
} {
-1 => false,
_ => true,
}
});
}
#[macro_export]
macro_rules! shmctl {
($id: expr, $cmd: expr) => ({
extern crate std;
shmctl!($id, $cmd, std::ptr::null_mut())
});
($id: expr, $cmd: expr, $info: expr) => ({
extern crate shm;
match unsafe {
shm::ffi::shmctl (
$id,
$cmd as i32,
$info
)
} {
-1 => false,
_ => true,
}
});
}