diff options
Diffstat (limited to 'vendor/hermit-abi/src/lib.rs')
| -rw-r--r-- | vendor/hermit-abi/src/lib.rs | 876 |
1 files changed, 472 insertions, 404 deletions
diff --git a/vendor/hermit-abi/src/lib.rs b/vendor/hermit-abi/src/lib.rs index 2a8a2e2dc..c03495e19 100644 --- a/vendor/hermit-abi/src/lib.rs +++ b/vendor/hermit-abi/src/lib.rs @@ -2,6 +2,7 @@ //! [RustyHermit](https://github.com/hermitcore/libhermit-rs). #![no_std] +#![allow(nonstandard_style)] #![allow(clippy::missing_safety_doc)] #![allow(clippy::result_unit_err)] @@ -9,75 +10,7 @@ pub mod errno; pub mod tcplistener; pub mod tcpstream; -use core::mem::MaybeUninit; - -use libc::c_void; - -// sysmbols, which are part of the library operating system - -extern "C" { - fn sys_rand() -> u32; - fn sys_srand(seed: u32); - fn sys_secure_rand32(value: *mut u32) -> i32; - fn sys_secure_rand64(value: *mut u64) -> i32; - fn sys_get_processor_count() -> usize; - fn sys_malloc(size: usize, align: usize) -> *mut u8; - fn sys_realloc(ptr: *mut u8, size: usize, align: usize, new_size: usize) -> *mut u8; - fn sys_free(ptr: *mut u8, size: usize, align: usize); - fn sys_init_queue(ptr: usize) -> i32; - fn sys_notify(id: usize, count: i32) -> i32; - fn sys_add_queue(id: usize, timeout_ns: i64) -> i32; - fn sys_wait(id: usize) -> i32; - fn sys_destroy_queue(id: usize) -> i32; - fn sys_read(fd: i32, buf: *mut u8, len: usize) -> isize; - fn sys_write(fd: i32, buf: *const u8, len: usize) -> isize; - fn sys_close(fd: i32) -> i32; - fn sys_futex_wait( - address: *mut u32, - expected: u32, - timeout: *const timespec, - flags: u32, - ) -> i32; - fn sys_futex_wake(address: *mut u32, count: i32) -> i32; - fn sys_sem_init(sem: *mut *const c_void, value: u32) -> i32; - fn sys_sem_destroy(sem: *const c_void) -> i32; - fn sys_sem_post(sem: *const c_void) -> i32; - fn sys_sem_trywait(sem: *const c_void) -> i32; - fn sys_sem_timedwait(sem: *const c_void, ms: u32) -> i32; - fn sys_recmutex_init(recmutex: *mut *const c_void) -> i32; - fn sys_recmutex_destroy(recmutex: *const c_void) -> i32; - fn sys_recmutex_lock(recmutex: *const c_void) -> i32; - fn sys_recmutex_unlock(recmutex: *const c_void) -> i32; - fn sys_getpid() -> u32; - fn sys_exit(arg: i32) -> !; - fn sys_abort() -> !; - fn sys_usleep(usecs: u64); - fn sys_spawn( - id: *mut Tid, - func: extern "C" fn(usize), - arg: usize, - prio: u8, - core_id: isize, - ) -> i32; - fn sys_spawn2( - func: extern "C" fn(usize), - arg: usize, - prio: u8, - stack_size: usize, - core_id: isize, - ) -> Tid; - fn sys_join(id: Tid) -> i32; - fn sys_yield(); - fn sys_clock_gettime(clock_id: u64, tp: *mut timespec) -> i32; - fn sys_open(name: *const i8, flags: i32, mode: i32) -> i32; - fn sys_unlink(name: *const i8) -> i32; - fn sys_network_init() -> i32; - fn sys_block_current_task(); - fn sys_block_current_task_with_timeout(timeout: u64); - fn sys_wakeup_task(tid: Tid); - fn sys_get_priority() -> u8; - fn sys_set_priority(tid: Tid, prio: u8); -} +use core::ffi::{c_int, c_void}; /// A thread handle type pub type Tid = u32; @@ -111,9 +44,9 @@ pub const NSEC_PER_SEC: u64 = 1_000_000_000; pub const FUTEX_RELATIVE_TIMEOUT: u32 = 1; pub const CLOCK_REALTIME: u64 = 1; pub const CLOCK_MONOTONIC: u64 = 4; -pub const STDIN_FILENO: libc::c_int = 0; -pub const STDOUT_FILENO: libc::c_int = 1; -pub const STDERR_FILENO: libc::c_int = 2; +pub const STDIN_FILENO: c_int = 0; +pub const STDOUT_FILENO: c_int = 1; +pub const STDERR_FILENO: c_int = 2; pub const O_RDONLY: i32 = 0o0; pub const O_WRONLY: i32 = 0o1; pub const O_RDWR: i32 = 0o2; @@ -123,15 +56,10 @@ pub const O_TRUNC: i32 = 0o1000; pub const O_APPEND: i32 = 0o2000; /// returns true if file descriptor `fd` is a tty -pub fn isatty(_fd: libc::c_int) -> bool { +pub fn isatty(_fd: c_int) -> bool { false } -/// initialize the network stack -pub fn network_init() -> i32 { - unsafe { sys_network_init() } -} - /// `timespec` is used by `clock_gettime` to retrieve the /// current time #[derive(Copy, Clone, Debug)] @@ -171,364 +99,504 @@ pub enum IpAddress { Ipv6(Ipv6Address), } -/// determines the number of activated processors -#[inline(always)] -pub unsafe fn get_processor_count() -> usize { - sys_get_processor_count() -} - -#[doc(hidden)] -#[inline(always)] -pub unsafe fn malloc(size: usize, align: usize) -> *mut u8 { - sys_malloc(size, align) -} - -#[doc(hidden)] -#[inline(always)] -pub unsafe fn realloc(ptr: *mut u8, size: usize, align: usize, new_size: usize) -> *mut u8 { - sys_realloc(ptr, size, align, new_size) -} - -#[doc(hidden)] -#[inline(always)] -pub unsafe fn free(ptr: *mut u8, size: usize, align: usize) { - sys_free(ptr, size, align) -} - -#[inline(always)] -pub unsafe fn notify(id: usize, count: i32) -> i32 { - sys_notify(id, count) -} - -#[doc(hidden)] -#[inline(always)] -pub unsafe fn add_queue(id: usize, timeout_ns: i64) -> i32 { - sys_add_queue(id, timeout_ns) -} - -#[doc(hidden)] -#[inline(always)] -pub unsafe fn wait(id: usize) -> i32 { - sys_wait(id) -} - -#[doc(hidden)] -#[inline(always)] -pub unsafe fn init_queue(id: usize) -> i32 { - sys_init_queue(id) -} - -#[doc(hidden)] -#[inline(always)] -pub unsafe fn destroy_queue(id: usize) -> i32 { - sys_destroy_queue(id) -} - -/// read from a file descriptor -/// -/// read() attempts to read `len` bytes of data from the object -/// referenced by the descriptor `fd` into the buffer pointed -/// to by `buf`. -#[inline(always)] -pub unsafe fn read(fd: i32, buf: *mut u8, len: usize) -> isize { - sys_read(fd, buf, len) -} - -/// write to a file descriptor -/// -/// write() attempts to write `len` of data to the object -/// referenced by the descriptor `fd` from the -/// buffer pointed to by `buf`. -#[inline(always)] -pub unsafe fn write(fd: i32, buf: *const u8, len: usize) -> isize { - sys_write(fd, buf, len) -} - -/// close a file descriptor -/// -/// The close() call deletes a file descriptor `fd` from the object -/// reference table. -#[inline(always)] -pub unsafe fn close(fd: i32) -> i32 { - sys_close(fd) -} - -/// If the value at address matches the expected value, park the current thread until it is either -/// woken up with [`futex_wake`] (returns 0) or an optional timeout elapses (returns -ETIMEDOUT). -/// -/// Setting `timeout` to null means the function will only return if [`futex_wake`] is called. -/// Otherwise, `timeout` is interpreted as an absolute time measured with [`CLOCK_MONOTONIC`]. -/// If [`FUTEX_RELATIVE_TIMEOUT`] is set in `flags` the timeout is understood to be relative -/// to the current time. -/// -/// Returns -EINVAL if `address` is null, the timeout is negative or `flags` contains unknown values. -#[inline(always)] -pub unsafe fn futex_wait( - address: *mut u32, - expected: u32, - timeout: *const timespec, - flags: u32, -) -> i32 { - sys_futex_wait(address, expected, timeout, flags) -} - -/// Wake `count` threads waiting on the futex at `address`. Returns the number of threads -/// woken up (saturates to `i32::MAX`). If `count` is `i32::MAX`, wake up all matching -/// waiting threads. If `count` is negative or `address` is null, returns -EINVAL. -#[inline(always)] -pub unsafe fn futex_wake(address: *mut u32, count: i32) -> i32 { - sys_futex_wake(address, count) -} - -/// sem_init() initializes the unnamed semaphore at the address -/// pointed to by `sem`. The `value` argument specifies the -/// initial value for the semaphore. -#[inline(always)] -pub unsafe fn sem_init(sem: *mut *const c_void, value: u32) -> i32 { - sys_sem_init(sem, value) -} - -/// sem_destroy() frees the unnamed semaphore at the address -/// pointed to by `sem`. -#[inline(always)] -pub unsafe fn sem_destroy(sem: *const c_void) -> i32 { - sys_sem_destroy(sem) -} - -/// sem_post() increments the semaphore pointed to by `sem`. -/// If the semaphore's value consequently becomes greater -/// than zero, then another thread blocked in a sem_wait call -/// will be woken up and proceed to lock the semaphore. -#[inline(always)] -pub unsafe fn sem_post(sem: *const c_void) -> i32 { - sys_sem_post(sem) -} - -/// try to decrement a semaphore -/// -/// sem_trywait() is the same as sem_timedwait(), except that -/// if the decrement cannot be immediately performed, then call -/// returns a negative value instead of blocking. -#[inline(always)] -pub unsafe fn sem_trywait(sem: *const c_void) -> i32 { - sys_sem_trywait(sem) -} - -/// decrement a semaphore -/// -/// sem_timedwait() decrements the semaphore pointed to by `sem`. -/// If the semaphore's value is greater than zero, then the -/// the function returns immediately. If the semaphore currently -/// has the value zero, then the call blocks until either -/// it becomes possible to perform the decrement of the time limit -/// to wait for the semaphore is expired. A time limit `ms` of -/// means infinity waiting time. -#[inline(always)] -pub unsafe fn sem_timedwait(sem: *const c_void, ms: u32) -> i32 { - sys_sem_timedwait(sem, ms) -} - -#[doc(hidden)] -#[inline(always)] -pub unsafe fn recmutex_init(recmutex: *mut *const c_void) -> i32 { - sys_recmutex_init(recmutex) -} - -#[doc(hidden)] -#[inline(always)] -pub unsafe fn recmutex_destroy(recmutex: *const c_void) -> i32 { - sys_recmutex_destroy(recmutex) -} +/// The largest number `rand` will return +pub const RAND_MAX: u64 = 2_147_483_647; -#[doc(hidden)] -#[inline(always)] -pub unsafe fn recmutex_lock(recmutex: *const c_void) -> i32 { - sys_recmutex_lock(recmutex) -} +pub const AF_INET: i32 = 0; +pub const AF_INET6: i32 = 1; +pub const IPPROTO_IP: i32 = 0; +pub const IPPROTO_IPV6: i32 = 41; +pub const IPPROTO_UDP: i32 = 17; +pub const IPPROTO_TCP: i32 = 6; +pub const IPV6_ADD_MEMBERSHIP: i32 = 12; +pub const IPV6_DROP_MEMBERSHIP: i32 = 13; +pub const IPV6_MULTICAST_LOOP: i32 = 19; +pub const IPV6_V6ONLY: i32 = 27; +pub const IP_TTL: i32 = 2; +pub const IP_MULTICAST_TTL: i32 = 5; +pub const IP_MULTICAST_LOOP: i32 = 7; +pub const IP_ADD_MEMBERSHIP: i32 = 3; +pub const IP_DROP_MEMBERSHIP: i32 = 4; +pub const SHUT_RD: i32 = 0; +pub const SHUT_WR: i32 = 1; +pub const SHUT_RDWR: i32 = 2; +pub const SOCK_DGRAM: i32 = 2; +pub const SOCK_STREAM: i32 = 1; +pub const SOL_SOCKET: i32 = 4095; +pub const SO_BROADCAST: i32 = 32; +pub const SO_ERROR: i32 = 4103; +pub const SO_RCVTIMEO: i32 = 4102; +pub const SO_REUSEADDR: i32 = 4; +pub const SO_SNDTIMEO: i32 = 4101; +pub const SO_LINGER: i32 = 128; +pub const TCP_NODELAY: i32 = 1; +pub const MSG_PEEK: i32 = 1; +pub const FIONBIO: i32 = 0x8008667eu32 as i32; +pub const EAI_NONAME: i32 = -2200; +pub const EAI_SERVICE: i32 = -2201; +pub const EAI_FAIL: i32 = -2202; +pub const EAI_MEMORY: i32 = -2203; +pub const EAI_FAMILY: i32 = -2204; +pub const POLLIN: i16 = 0x1; +pub const POLLPRI: i16 = 0x2; +pub const POLLOUT: i16 = 0x4; +pub const POLLERR: i16 = 0x8; +pub const POLLHUP: i16 = 0x10; +pub const POLLNVAL: i16 = 0x20; +pub const POLLRDNORM: i16 = 0x040; +pub const POLLRDBAND: i16 = 0x080; +pub const POLLRDHUP: i16 = 0x2000; +pub type sa_family_t = u8; +pub type socklen_t = u32; +pub type in_addr_t = u32; +pub type in_port_t = u16; +pub type time_t = i64; +pub type suseconds_t = i64; +pub type nfds_t = usize; -#[doc(hidden)] -#[inline(always)] -pub unsafe fn recmutex_unlock(recmutex: *const c_void) -> i32 { - sys_recmutex_unlock(recmutex) +#[repr(C)] +#[derive(Debug, Copy, Clone)] +pub struct in_addr { + pub s_addr: u32, } -/// Determines the id of the current thread -#[inline(always)] -pub unsafe fn getpid() -> u32 { - sys_getpid() +#[repr(C)] +#[derive(Debug, Copy, Clone)] +pub struct in6_addr { + pub s6_addr: [u8; 16], } -/// cause normal termination and return `arg` -/// to the host system -#[inline(always)] -pub unsafe fn exit(arg: i32) -> ! { - sys_exit(arg) +#[repr(C)] +#[derive(Debug, Copy, Clone)] +pub struct sockaddr { + pub sa_len: u8, + pub sa_family: sa_family_t, + pub sa_data: [u8; 14], } -/// cause abnormal termination -#[inline(always)] -pub unsafe fn abort() -> ! { - sys_abort() +#[repr(C)] +#[derive(Debug, Copy, Clone)] +pub struct sockaddr_in { + pub sin_len: u8, + pub sin_family: sa_family_t, + pub sin_port: u16, + pub sin_addr: in_addr, + pub sin_zero: [u8; 8], } -/// suspend execution for microsecond intervals -/// -/// The usleep() function suspends execution of the calling -/// thread for (at least) `usecs` microseconds. -#[inline(always)] -pub unsafe fn usleep(usecs: u64) { - sys_usleep(usecs) +#[repr(C)] +#[derive(Debug, Copy, Clone)] +pub struct sockaddr_in6 { + pub sin6_family: sa_family_t, + pub sin6_port: u16, + pub sin6_addr: in6_addr, + pub sin6_flowinfo: u32, + pub sin6_scope_id: u32, } -/// spawn a new thread -/// -/// spawn() starts a new thread. The new thread starts execution -/// by invoking `func(usize)`; `arg` is passed as the argument -/// to `func`. `prio` defines the priority of the new thread, -/// which can be between `LOW_PRIO` and `HIGH_PRIO`. -/// `core_id` defines the core, where the thread is located. -/// A negative value give the operating system the possibility -/// to select the core by its own. -#[inline(always)] -pub unsafe fn spawn( - id: *mut Tid, - func: extern "C" fn(usize), - arg: usize, - prio: u8, - core_id: isize, -) -> i32 { - sys_spawn(id, func, arg, prio, core_id) +#[repr(C)] +#[derive(Debug, Copy, Clone)] +pub struct addrinfo { + pub ai_flags: i32, + pub ai_family: i32, + pub ai_socktype: i32, + pub ai_protocol: i32, + pub ai_addrlen: socklen_t, + pub ai_addr: *mut sockaddr, + pub ai_canonname: *mut u8, + pub ai_next: *mut addrinfo, } -/// spawn a new thread with user-specified stack size -/// -/// spawn2() starts a new thread. The new thread starts execution -/// by invoking `func(usize)`; `arg` is passed as the argument -/// to `func`. `prio` defines the priority of the new thread, -/// which can be between `LOW_PRIO` and `HIGH_PRIO`. -/// `core_id` defines the core, where the thread is located. -/// A negative value give the operating system the possibility -/// to select the core by its own. -/// In contrast to spawn(), spawn2() is able to define the -/// stack size. -#[inline(always)] -pub unsafe fn spawn2( - func: extern "C" fn(usize), - arg: usize, - prio: u8, - stack_size: usize, - core_id: isize, -) -> Tid { - sys_spawn2(func, arg, prio, stack_size, core_id) +#[repr(C)] +#[derive(Debug, Copy, Clone)] +pub struct sockaddr_storage { + pub s2_len: u8, + pub ss_family: sa_family_t, + pub s2_data1: [i8; 2usize], + pub s2_data2: [u32; 3usize], } -/// join with a terminated thread -/// -/// The join() function waits for the thread specified by `id` -/// to terminate. -#[inline(always)] -pub unsafe fn join(id: Tid) -> i32 { - sys_join(id) +#[repr(C)] +#[derive(Debug, Copy, Clone)] +pub struct ip_mreq { + pub imr_multiaddr: in_addr, + pub imr_interface: in_addr, } -/// yield the processor -/// -/// causes the calling thread to relinquish the CPU. The thread -/// is moved to the end of the queue for its static priority. -#[inline(always)] -pub unsafe fn yield_now() { - sys_yield() +#[repr(C)] +#[derive(Debug, Copy, Clone)] +pub struct ipv6_mreq { + pub ipv6mr_multiaddr: in6_addr, + pub ipv6mr_interface: u32, } -/// get current time -/// -/// The clock_gettime() functions allow the calling thread -/// to retrieve the value used by a clock which is specified -/// by `clock_id`. -/// -/// `CLOCK_REALTIME`: the system's real time clock, -/// expressed as the amount of time since the Epoch. -/// -/// `CLOCK_MONOTONIC`: clock that increments monotonically, -/// tracking the time since an arbitrary point -#[inline(always)] -pub unsafe fn clock_gettime(clock_id: u64, tp: *mut timespec) -> i32 { - sys_clock_gettime(clock_id, tp) +#[repr(C)] +#[derive(Debug, Copy, Clone)] +pub struct linger { + pub l_onoff: i32, + pub l_linger: i32, } -/// open and possibly create a file -/// -/// The open() system call opens the file specified by `name`. -/// If the specified file does not exist, it may optionally -/// be created by open(). -#[inline(always)] -pub unsafe fn open(name: *const i8, flags: i32, mode: i32) -> i32 { - sys_open(name, flags, mode) +#[repr(C)] +#[derive(Debug, Copy, Clone)] +pub struct timeval { + pub tv_sec: time_t, + pub tv_usec: suseconds_t, } -/// delete the file it refers to `name` -#[inline(always)] -pub unsafe fn unlink(name: *const i8) -> i32 { - sys_unlink(name) +#[repr(C)] +#[derive(Debug, Copy, Clone)] +pub struct pollfd { + pub fd: i32, /* file descriptor */ + pub events: i16, /* events to look for */ + pub revents: i16, /* events returned */ } -/// The largest number `rand` will return -pub const RAND_MAX: u64 = 2_147_483_647; - -/// The function computes a sequence of pseudo-random integers -/// in the range of 0 to RAND_MAX -#[inline(always)] -pub unsafe fn rand() -> u32 { - sys_rand() -} +// sysmbols, which are part of the library operating system +extern "C" { + /// If the value at address matches the expected value, park the current thread until it is either + /// woken up with [`futex_wake`] (returns 0) or an optional timeout elapses (returns -ETIMEDOUT). + /// + /// Setting `timeout` to null means the function will only return if [`futex_wake`] is called. + /// Otherwise, `timeout` is interpreted as an absolute time measured with [`CLOCK_MONOTONIC`]. + /// If [`FUTEX_RELATIVE_TIMEOUT`] is set in `flags` the timeout is understood to be relative + /// to the current time. + /// + /// Returns -EINVAL if `address` is null, the timeout is negative or `flags` contains unknown values. + #[link_name = "sys_futex_wait"] + pub fn futex_wait( + address: *mut u32, + expected: u32, + timeout: *const timespec, + flags: u32, + ) -> i32; -/// The function sets its argument as the seed for a new sequence -/// of pseudo-random numbers to be returned by `rand` -#[inline(always)] -pub unsafe fn srand(seed: u32) { - sys_srand(seed); -} + /// Wake `count` threads waiting on the futex at `address`. Returns the number of threads + /// woken up (saturates to `i32::MAX`). If `count` is `i32::MAX`, wake up all matching + /// waiting threads. If `count` is negative or `address` is null, returns -EINVAL. + #[link_name = "sys_futex_wake"] + pub fn futex_wake(address: *mut u32, count: i32) -> i32; + + /// sem_init() initializes the unnamed semaphore at the address + /// pointed to by `sem`. The `value` argument specifies the + /// initial value for the semaphore. + #[link_name = "sys_sem_init"] + pub fn sem_init(sem: *mut *const c_void, value: u32) -> i32; + + /// sem_destroy() frees the unnamed semaphore at the address + /// pointed to by `sem`. + #[link_name = "sys_sem_destroy"] + pub fn sem_destroy(sem: *const c_void) -> i32; + + /// sem_post() increments the semaphore pointed to by `sem`. + /// If the semaphore's value consequently becomes greater + /// than zero, then another thread blocked in a sem_wait call + /// will be woken up and proceed to lock the semaphore. + #[link_name = "sys_sem_post"] + pub fn sem_post(sem: *const c_void) -> i32; + + /// try to decrement a semaphore + /// + /// sem_trywait() is the same as sem_timedwait(), except that + /// if the decrement cannot be immediately performed, then call + /// returns a negative value instead of blocking. + #[link_name = "sys_sem_trywait"] + pub fn sem_trywait(sem: *const c_void) -> i32; + + /// decrement a semaphore + /// + /// sem_timedwait() decrements the semaphore pointed to by `sem`. + /// If the semaphore's value is greater than zero, then the + /// the function returns immediately. If the semaphore currently + /// has the value zero, then the call blocks until either + /// it becomes possible to perform the decrement of the time limit + /// to wait for the semaphore is expired. A time limit `ms` of + /// means infinity waiting time. + #[link_name = "sys_timedwait"] + pub fn sem_timedwait(sem: *const c_void, ms: u32) -> i32; + + /// Determines the id of the current thread + #[link_name = "sys_getpid"] + pub fn getpid() -> u32; + + /// cause normal termination and return `arg` + /// to the host system + #[link_name = "sys_exit"] + pub fn exit(arg: i32) -> !; + + /// cause abnormal termination + #[link_name = "sys_abort"] + pub fn abort() -> !; + + /// suspend execution for microsecond intervals + /// + /// The usleep() function suspends execution of the calling + /// thread for (at least) `usecs` microseconds. + #[link_name = "sys_usleep"] + pub fn usleep(usecs: u64); + + /// spawn a new thread + /// + /// spawn() starts a new thread. The new thread starts execution + /// by invoking `func(usize)`; `arg` is passed as the argument + /// to `func`. `prio` defines the priority of the new thread, + /// which can be between `LOW_PRIO` and `HIGH_PRIO`. + /// `core_id` defines the core, where the thread is located. + /// A negative value give the operating system the possibility + /// to select the core by its own. + #[link_name = "sys_spawn"] + pub fn spawn( + id: *mut Tid, + func: extern "C" fn(usize), + arg: usize, + prio: u8, + core_id: isize, + ) -> i32; -/// Create a cryptographicly secure 32bit random number with the support of -/// the underlying hardware. If the required hardware isn't available, -/// the function returns `None`. -#[inline(always)] -pub unsafe fn secure_rand32() -> Option<u32> { - let mut rand = MaybeUninit::uninit(); - let res = sys_secure_rand32(rand.as_mut_ptr()); - (res == 0).then(|| rand.assume_init()) -} + /// spawn a new thread with user-specified stack size + /// + /// spawn2() starts a new thread. The new thread starts execution + /// by invoking `func(usize)`; `arg` is passed as the argument + /// to `func`. `prio` defines the priority of the new thread, + /// which can be between `LOW_PRIO` and `HIGH_PRIO`. + /// `core_id` defines the core, where the thread is located. + /// A negative value give the operating system the possibility + /// to select the core by its own. + /// In contrast to spawn(), spawn2() is able to define the + /// stack size. + #[link_name = "sys_spawn2"] + pub fn spawn2( + func: extern "C" fn(usize), + arg: usize, + prio: u8, + stack_size: usize, + core_id: isize, + ) -> Tid; -/// Create a cryptographicly secure 64bit random number with the support of -/// the underlying hardware. If the required hardware isn't available, -/// the function returns `None`. -#[inline(always)] -pub unsafe fn secure_rand64() -> Option<u64> { - let mut rand = MaybeUninit::uninit(); - let res = sys_secure_rand64(rand.as_mut_ptr()); - (res == 0).then(|| rand.assume_init()) -} + /// join with a terminated thread + /// + /// The join() function waits for the thread specified by `id` + /// to terminate. + #[link_name = "sys_join"] + pub fn join(id: Tid) -> i32; + + /// yield the processor + /// + /// causes the calling thread to relinquish the CPU. The thread + /// is moved to the end of the queue for its static priority. + #[link_name = "sys_yield"] + pub fn yield_now(); + + /// get current time + /// + /// The clock_gettime() functions allow the calling thread + /// to retrieve the value used by a clock which is specified + /// by `clock_id`. + /// + /// `CLOCK_REALTIME`: the system's real time clock, + /// expressed as the amount of time since the Epoch. + /// + /// `CLOCK_MONOTONIC`: clock that increments monotonically, + /// tracking the time since an arbitrary point + #[link_name = "sys_clock_gettime"] + pub fn clock_gettime(clock_id: u64, tp: *mut timespec) -> i32; + + /// open and possibly create a file + /// + /// The open() system call opens the file specified by `name`. + /// If the specified file does not exist, it may optionally + /// be created by open(). + #[link_name = "sys_open"] + pub fn open(name: *const i8, flags: i32, mode: i32) -> i32; + + /// delete the file it refers to `name` + #[link_name = "sys_unlink"] + pub fn unlink(name: *const i8) -> i32; + + /// determines the number of activated processors + #[link_name = "sys_processor_count"] + pub fn get_processor_count() -> usize; + + #[link_name = "sys_malloc"] + pub fn malloc(size: usize, align: usize) -> *mut u8; + + #[doc(hidden)] + #[link_name = "sys_realloc"] + pub fn realloc(ptr: *mut u8, size: usize, align: usize, new_size: usize) -> *mut u8; + + #[doc(hidden)] + #[link_name = "sys_free"] + pub fn free(ptr: *mut u8, size: usize, align: usize); + + #[link_name = "sys_notify"] + pub fn notify(id: usize, count: i32) -> i32; + + #[doc(hidden)] + #[link_name = "sys_add_queue"] + pub fn add_queue(id: usize, timeout_ns: i64) -> i32; + + #[doc(hidden)] + #[link_name = "sys_wait"] + pub fn wait(id: usize) -> i32; + + #[doc(hidden)] + #[link_name = "sys_init_queue"] + pub fn init_queue(id: usize) -> i32; + + #[doc(hidden)] + #[link_name = "sys_destroy_queue"] + pub fn destroy_queue(id: usize) -> i32; + + /// initialize the network stack + #[link_name = "sys_network_init"] + pub fn network_init() -> i32; + + /// Add current task to the queue of blocked tasks. After calling `block_current_task`, + /// call `yield_now` to switch to another task. + #[link_name = "sys_block_current_task"] + pub fn block_current_task(); + + /// Add current task to the queue of blocked tasks, but wake it when `timeout` milliseconds + /// have elapsed. + /// + /// After calling `block_current_task`, call `yield_now` to switch to another task. + #[link_name = "sys_block_current_task_with_timeout"] + pub fn block_current_task_with_timeout(timeout: u64); + + /// Wakeup task with the thread id `tid` + #[link_name = "sys_wakeup_taskt"] + pub fn wakeup_task(tid: Tid); + + #[link_name = "sys_accept"] + pub fn accept(s: i32, addr: *mut sockaddr, addrlen: *mut socklen_t) -> i32; + + /// bind a name to a socket + #[link_name = "sys_bind"] + pub fn bind(s: i32, name: *const sockaddr, namelen: socklen_t) -> i32; + + #[link_name = "sys_connect"] + pub fn connect(s: i32, name: *const sockaddr, namelen: socklen_t) -> i32; + + /// read from a file descriptor + /// + /// read() attempts to read `len` bytes of data from the object + /// referenced by the descriptor `fd` into the buffer pointed + /// to by `buf`. + #[link_name = "sys_read"] + pub fn read(fd: i32, buf: *mut u8, len: usize) -> isize; + + /// Fill `len` bytes in `buf` with cryptographically secure random data. + /// + /// Returns either the number of bytes written to buf (a positive value) or + /// * `-EINVAL` if `flags` contains unknown flags. + /// * `-ENOSYS` if the system does not support random data generation. + #[link_name = "sys_read_entropy"] + pub fn read_entropy(buf: *mut u8, len: usize, flags: u32) -> isize; + + /// receive() a message from a socket + #[link_name = "sys_recv"] + pub fn recv(socket: i32, buf: *mut u8, len: usize, flags: i32) -> isize; + + /// receive() a message from a socket + #[link_name = "sys_recvfrom"] + pub fn recvfrom( + socket: i32, + buf: *mut u8, + len: usize, + flags: i32, + addr: *mut sockaddr, + addrlen: *mut socklen_t, + ) -> isize; + + /// write to a file descriptor + /// + /// write() attempts to write `len` of data to the object + /// referenced by the descriptor `fd` from the + /// buffer pointed to by `buf`. + #[link_name = "sys_write"] + pub fn write(fd: i32, buf: *const u8, len: usize) -> isize; + + /// close a file descriptor + /// + /// The close() call deletes a file descriptor `fd` from the object + /// reference table. + #[link_name = "sys_close"] + pub fn close(fd: i32) -> i32; + + /// duplicate an existing file descriptor + #[link_name = "sys_dup"] + pub fn dup(fd: i32) -> i32; + + #[link_name = "sys_getpeername"] + pub fn getpeername(s: i32, name: *mut sockaddr, namelen: *mut socklen_t) -> i32; + + #[link_name = "sys_getsockname"] + pub fn getsockname(s: i32, name: *mut sockaddr, namelen: *mut socklen_t) -> i32; + + #[link_name = "sys_getsockopt"] + pub fn getsockopt( + s: i32, + level: i32, + optname: i32, + optval: *mut c_void, + optlen: *mut socklen_t, + ) -> i32; -/// Add current task to the queue of blocked tasks. After calling `block_current_task`, -/// call `yield_now` to switch to another task. -#[inline(always)] -pub unsafe fn block_current_task() { - sys_block_current_task(); -} + #[link_name = "sys_setsockopt"] + pub fn setsockopt( + s: i32, + level: i32, + optname: i32, + optval: *const c_void, + optlen: socklen_t, + ) -> i32; -/// Add current task to the queue of blocked tasks, but wake it when `timeout` milliseconds -/// have elapsed. -/// -/// After calling `block_current_task`, call `yield_now` to switch to another task. -#[inline(always)] -pub unsafe fn block_current_task_with_timeout(timeout: u64) { - sys_block_current_task_with_timeout(timeout); -} + #[link_name = "sys_ioctl"] + pub fn ioctl(s: i32, cmd: i32, argp: *mut c_void) -> i32; + + #[link_name = "sys_pool"] + pub fn poll(fds: *mut pollfd, nfds: nfds_t, timeout: i32) -> i32; + + /// listen for connections on a socket + /// + /// The `backlog` parameter defines the maximum length for the queue of pending + /// connections. Currently, the `backlog` must be one. + #[link_name = "sys_listen"] + pub fn listen(s: i32, backlog: i32) -> i32; + + #[link_name = "sys_send"] + pub fn send(s: i32, mem: *const c_void, len: usize, flags: i32) -> isize; + + #[link_name = "sys_sendto"] + pub fn sendto( + s: i32, + mem: *const c_void, + len: usize, + flags: i32, + to: *const sockaddr, + tolen: socklen_t, + ) -> isize; + + /// shut down part of a full-duplex connection + #[link_name = "sys_shutdown_socket"] + pub fn shutdown_socket(s: i32, how: i32) -> i32; + + #[link_name = "sys_socket"] + pub fn socket(domain: i32, type_: i32, protocol: i32) -> i32; + + #[link_name = "sys_freeaddrinfo"] + pub fn freeaddrinfo(ai: *mut addrinfo); + + #[link_name = "sys_getaddrinfo"] + pub fn getaddrinfo( + nodename: *const i8, + servname: *const u8, + hints: *const addrinfo, + res: *mut *mut addrinfo, + ) -> i32; -/// Wakeup task with the thread id `tid` -#[inline(always)] -pub unsafe fn wakeup_task(tid: Tid) { - sys_wakeup_task(tid); + fn sys_get_priority() -> u8; + fn sys_set_priority(tid: Tid, prio: u8); } /// Determine the priority of the current thread |