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scala.scalanative.posix.signal.scala Maven / Gradle / Ivy
package scala.scalanative
package posix
import scala.scalanative.unsafe._
@extern object signal extends signal
/** Some of the functionality described on this reference page extends the ISO C
* standard. Applications shall define the appropriate feature test macro (see
* XSH The Compilation Environment) to enable the visibility of these symbols
* in this header.
*
* Use clib macros and functions to get the full POSIX interface
*
* Note 1: The functionality described may be removed in a future version of
* this volume of POSIX.1-2017 Note 2: The functionality is an option marked as
* XSI (X/Open System Interfaces)
*
* Note 1 or 2 followed by Linux or macOS means that the feature is not
* available on that platform with default compile options so the code is
* commented out. The code is commented out so the next developer that comes
* along will not have to rediscover these limitations.
*/
@extern trait signal extends libc.signal {
/* define the following macros, which shall expand to constant expressions with
* distinct values that have a type compatible with the second argument to, and
* the return value of, the signal() function, and whose values shall compare
* unequal to the address of any declarable function.
*/
// Note 1: Linux
// @name("scalanative_sig_hold")
// def SIG_HOLD: CFunctionPtr1[CInt, Unit] = extern
import sys.types
// pthread_t, size_t, and uid_t types as described in
type pthread_t = types.pthread_t
type size_t = types.size_t
type uid_t = types.uid_t
// timespec structure as described in
type timespec = time.timespec
// define the following data types
type sig_atomic_t = CInt
// Integer or structure type of an object used to represent sets of signals
// macOS CUnsignedInt
// Linux CStruct1[CArray[CUnsignedLong, Nat.Digit[Nat._1, Nat._6]]]
type sigset_t = CVoidPtr
type pid_t = types.pid_t
type pthread_attr_t = types.pthread_attr_t
// format: off
type sigevent = CStruct5[
CInt, // sigev_notify Notification type
CInt, // sigev_signo Signal number
Ptr[sigval], // sigev_value Signal value (Ptr instead of value)
CFuncPtr1[Ptr[sigval], Unit], // sigev_notify_function Notification function
// (Ptr instead of value for sigval)
Ptr[pthread_attr_t] // sigev_notify_attributes Notification attributes
]
// format: on
// define the following symbolic constants for the values of sigev_notify:
@name("scalanative_sigev_none")
def SIGEV_NONE: CInt = extern
@name("scalanative_sigev_signal")
def SIGEV_SIGNAL: CInt = extern
@name("scalanative_sigev_thread")
def SIGEV_THREAD: CInt = extern
// union of int sival_int and void *sival_ptr
type sigval = CArray[Byte, Nat._8]
// mandatory signals
@name("scalanative_sigalrm")
def SIGALRM: CInt = extern
@name("scalanative_sigbus")
def SIGBUS: CInt = extern
/** POSIX - "Child process terminated, stopped". XSI adds ""or continued."
*/
@name("scalanative_sigchld")
def SIGCHLD: CInt = extern
@name("scalanative_sigcont")
def SIGCONT: CInt = extern
@name("scalanative_sighup")
def SIGHUP: CInt = extern
@name("scalanative_sigkill")
def SIGKILL: CInt = extern
@name("scalanative_sigpipe")
def SIGPIPE: CInt = extern
@name("scalanative_sigquit")
def SIGQUIT: CInt = extern
@name("scalanative_sigstop")
def SIGSTOP: CInt = extern
@name("scalanative_sigtstp")
def SIGTSTP: CInt = extern
@name("scalanative_sigttin")
def SIGTTIN: CInt = extern
@name("scalanative_sigttou")
def SIGTTOU: CInt = extern
@name("scalanative_sigusr1")
def SIGUSR1: CInt = extern
@name("scalanative_sigusr2")
def SIGUSR2: CInt = extern
// Note 1: macOS
// @name("scalanative_sigpoll")
// def SIGPOLL: CInt = extern
/** Obsolete XSR
*/
@name("scalanative_sigprof")
def SIGPROF: CInt = extern
/** XSI
*/
@name("scalanative_sigsys")
def SIGSYS: CInt = extern
@name("scalanative_sigtrap")
def SIGTRAP: CInt = extern
@name("scalanative_sigurg")
def SIGURG: CInt = extern
/** XSI
*/
@name("scalanative_sigtalrm")
def SIGVTALRM: CInt = extern
@name("scalanative_sigxcpu")
def SIGXCPU: CInt = extern
@name("scalanative_sigxfsz")
def SIGXFSZ: CInt = extern
// format: off
// The storage occupied by sa_handler and sa_sigaction may overlap,
// and a conforming application shall not use both simultaneously.
type sigaction = CStruct4[
CFuncPtr1[CInt, Unit], // sa_handler Ptr to a signal-catching function or one
// of the SIG_IGN or SIG_DFL
sigset_t, // sa_mask Set of signals to be blocked during execution
// of the signal handling func
CInt, // sa_flags Special flags
// sa_sigaction Pointer to a signal-catching function
CFuncPtr3[CInt, Ptr[siginfo_t], CVoidPtr, Unit]
]
// format: on
// define the following macros which shall expand to integer constant expressions
// that need not be usable in #if preprocessing directives
@name("scalanative_sig_block")
def SIG_BLOCK: CInt = extern
@name("scalanative_sig_unblock")
def SIG_UNBLOCK: CInt = extern
@name("scalanative_sig_setmask")
def SIG_SETMASK: CInt = extern
// define the following symbolic constants
@name("scalanative_sa_nocldstop")
def SA_NOCLDSTOP: CInt = extern
@name("scalanative_sa_onstack")
def SA_ONSTACK: CInt = extern
@name("scalanative_sa_resethand")
def SA_RESETHAND: CInt = extern
@name("scalanative_sa_restart")
def SA_RESTART: CInt = extern
@name("scalanative_sa_siginfo")
def SA_SIGINFO: CInt = extern
@name("scalanative_sa_nocldwait")
def SA_NOCLDWAIT: CInt = extern
@name("scalanative_sa_nodefer")
def SA_NODEFER: CInt = extern
@name("scalanative_ss_onstack")
def SS_ONSTACK: CInt = extern
@name("scalanative_ss_disable")
def SS_DISABLE: CInt = extern
@name("scalanative_minsigstksz")
def MINSIGSTKSZ: CInt = extern
@name("scalanative_sigstksz")
def SIGSTKSZ: CInt = extern
// A machine-specific representation of the saved context
// mac OS type mcontext_t = Ptr[__darwin_mcontext64]
// __darwin_mcontext64 -> _STRUCT_MCONTEXT64 -> typedef _STRUCT_MCONTEXT64 *mcontext_t;
type mcontext_t = CVoidPtr
type ucontext_t = CStruct4[
CVoidPtr, // ucontext_t *uc_link Ptr to the resumed context when context returns (CVoidPtr instead)
sigset_t, // c_sigmask The set of signals that are blocked when this context is active
Ptr[stack_t], // uc_stack The stack context (Ptr instead of value)
mcontext_t // uc_mcontext A machine-specific representation of the saved context
]
type stack_t = CStruct3[
CVoidPtr, // void *ss_sp Stack base or pointer
size_t, // ss_size Stack size
CInt // ss_flags Flags
]
type siginfo_t = CStruct9[
CInt, // si_signo Signal number
CInt, // si_code Signal code
CInt, // si_errno If non-zero, an errno value associated with this signal, as described in
pid_t, // si_pid Sending process ID
uid_t, // si_uid Real user ID of sending process
CVoidPtr, // void *si_addr Address of faulting instruction
CInt, // si_status Exit value or signal
CLong, // si_band Band event for SIGPOLL
Ptr[sigval] // si_value Signal value (Ptr instead of value)
]
// define the symbolic constants in the Code column of the following table for use as values of si_code
// that are signal-specific or non-signal-specific reasons why the signal was generated
@name("scalanative_ill_illopc")
def ILL_ILLOPC: CInt = extern
@name("scalanative_ill_illopn")
def ILL_ILLOPN: CInt = extern
@name("scalanative_ill_illadr")
def ILL_ILLADR: CInt = extern
@name("scalanative_ill_illtrp")
def ILL_ILLTRP: CInt = extern
@name("scalanative_ill_prvopc")
def ILL_PRVOPC: CInt = extern
@name("scalanative_ill_prvreg")
def ILL_PRVREG: CInt = extern
@name("scalanative_ill_coproc")
def ILL_COPROC: CInt = extern
@name("scalanative_ill_badstk")
def ILL_BADSTK: CInt = extern
@name("scalanative_fpe_intdiv")
def FPE_INTDIV: CInt = extern
@name("scalanative_fpe_intovf")
def FPE_INTOVF: CInt = extern
@name("scalanative_fpe_fltdiv")
def FPE_FLTDIV: CInt = extern
@name("scalanative_fpe_fltovf")
def FPE_FLTOVF: CInt = extern
@name("scalanative_fpe_fltund")
def FPE_FLTUND: CInt = extern
@name("scalanative_fpe_fltres")
def FPE_FLTRES: CInt = extern
@name("scalanative_fpe_fltinv")
def FPE_FLTINV: CInt = extern
@name("scalanative_fpe_fltsub")
def FPE_FLTSUB: CInt = extern
@name("scalanative_segv_maperr")
def SEGV_MAPERR: CInt = extern
@name("scalanative_segv_accerr")
def SEGV_ACCERR: CInt = extern
@name("scalanative_bus_adraln")
def BUS_ADRALN: CInt = extern
@name("scalanative_bus_adrerr")
def BUS_ADRERR: CInt = extern
@name("scalanative_bus_objerr")
def BUS_OBJERR: CInt = extern
// Note 2: Linux
// @name("scalanative_trap_brkpt")
// def TRAP_BRKPT: CInt = extern
// @name("scalanative_trap_trace")
// def TRAP_TRACE: CInt = extern
@name("scalanative_cld_exited")
def CLD_EXITED: CInt = extern
@name("scalanative_cld_killed")
def CLD_KILLED: CInt = extern
@name("scalanative_cld_dumped")
def CLD_DUMPED: CInt = extern
@name("scalanative_cld_trapped")
def CLD_TRAPPED: CInt = extern
@name("scalanative_cld_stopped")
def CLD_STOPPED: CInt = extern
@name("scalanative_cld_continued")
def CLD_CONTINUED: CInt = extern
@name("scalanative_poll_in")
def POLL_IN: CInt = extern
@name("scalanative_poll_out")
def POLL_OUT: CInt = extern
@name("scalanative_poll_msg")
def POLL_MSG: CInt = extern
@name("scalanative_poll_err")
def POLL_ERR: CInt = extern
@name("scalanative_poll_pri")
def POLL_PRI: CInt = extern
@name("scalanative_poll_hup")
def POLL_HUP: CInt = extern
@name("scalanative_si_user")
def SI_USER: CInt = extern
@name("scalanative_si_queue")
def SI_QUEUE: CInt = extern
@name("scalanative_si_timer")
def SI_TIMER: CInt = extern
@name("scalanative_si_asyncio")
def SI_ASYNCIO: CInt = extern
@name("scalanative_si_mesgq")
def SI_MESGQ: CInt = extern
// The following shall be declared as functions and may also be defined as macros.
// Function prototypes shall be provided
// Note: sigset_t is already a pointer above
def kill(pid: pid_t, sig: CInt): CInt = extern
def killpg(pgrp: pid_t, sig: CInt): CInt = extern
def psiginfo(info: Ptr[siginfo_t], msg: CString): Unit = extern
def psignal(sig: CInt, msg: CString): Unit = extern
def pthread_kill(thread: pthread_t, sig: CInt): CInt = extern
def pthread_sigmask(
how: CInt,
set: Ptr[sigset_t],
oset: Ptr[sigset_t]
): CInt =
extern
def sigaction(sig: CInt, act: Ptr[sigaction], oact: Ptr[sigaction]): CInt =
extern
def sigaddset(set: Ptr[sigset_t], signo: CInt): CInt = extern
def sigaltstack(ss: Ptr[stack_t], oss: Ptr[stack_t]): CInt = extern
def sigdelset(set: Ptr[sigset_t], signo: CInt): CInt = extern
def sigemptyset(set: Ptr[sigset_t]): CInt = extern
def sigfillset(set: Ptr[sigset_t]): CInt = extern
def sighold(sig: CInt): CInt = extern
def sigignore(sig: CInt): CInt = extern
def siginterrupt(sig: CInt, flag: CInt): CInt = extern
def sigismember(set: Ptr[sigset_t], signo: CInt): CInt = extern
@blocking
def sigpause(sig: CInt): CInt = extern
def sigpending(set: Ptr[sigset_t]): CInt = extern
def sigprocmask(how: CInt, set: Ptr[sigset_t], oset: Ptr[sigset_t]): CInt =
extern
def sigqueue(pid: pid_t, signo: CInt, value: Ptr[sigval]): CInt = extern
def sigrelse(sig: CInt): CInt = extern
def sigset(sig: CInt, disp: CFuncPtr1[CInt, Unit]): CFuncPtr1[CInt, Unit] =
extern
@blocking
def sigsuspend(sigmask: Ptr[sigset_t]): CInt = extern
@blocking
def sigtimedwait(
set: Ptr[sigset_t],
info: Ptr[siginfo_t],
timeout: Ptr[timespec]
): CInt = extern
@blocking
def sigwait(set: Ptr[sigset_t], sig: Ptr[CInt]): CInt = extern
@blocking
def sigwaitinfo(set: Ptr[sigset_t], info: Ptr[siginfo_t]): CInt = extern
}
object signalOps {
import signal._
// sigset_t - platform specific
implicit class sigevent_ops(val p: Ptr[sigevent]) extends AnyVal {
def sigev_notify: CInt = p._1
def sigev_notify_=(value: CInt): Unit = p._1 = value
def sigev_signo: CInt = p._2
def sigev_signo_=(value: CInt): Unit = p._2 = value
def sigev_value: Ptr[sigval] = p._3
def sigev_value_=(value: Ptr[sigval]): Unit = p._3 = value
def sigev_notify_function: CFuncPtr1[Ptr[sigval], Unit] = p._4
def sigev_notify_function_=(value: CFuncPtr1[Ptr[sigval], Unit]): Unit =
p._4 = value
def sigev_notify_attributes: Ptr[pthread_attr_t] = p._5
def sigev_notify_attributes_=(value: Ptr[pthread_attr_t]): Unit =
p._5 = value
}
def struct_sigevent()(implicit z: Zone): Ptr[sigevent] = alloc[sigevent]()
implicit class sigval_ops(val p: Ptr[sigval]) extends AnyVal {
def sival_int: Ptr[CInt] = p.asInstanceOf[Ptr[CInt]]
def sival_int_=(value: CInt): Unit = !p.asInstanceOf[Ptr[CInt]] = value
def sival_ptr: Ptr[CVoidPtr] = p.asInstanceOf[Ptr[CVoidPtr]]
def sival_ptr_=(value: CVoidPtr): Unit =
!p.asInstanceOf[Ptr[CVoidPtr]] = value
}
def union_sigval()(implicit z: Zone): Ptr[sigval] = alloc[sigval]()
implicit class sigaction_ops(val p: Ptr[sigaction]) extends AnyVal {
def sa_handler: CFuncPtr1[CInt, Unit] = p._1
def sa_handler_=(value: CFuncPtr1[CInt, Unit]): Unit = p._1 = value
def sa_mask: sigset_t = p._2
def sa_mask_=(value: sigset_t): Unit = p._2 = value
def sa_flags: CInt = p._3
def sa_flags_=(value: CInt): Unit = p._3 = value
def sa_sigaction: CFuncPtr3[CInt, Ptr[siginfo_t], CVoidPtr, Unit] = p._4
def sa_sigaction_=(
value: CFuncPtr3[CInt, Ptr[siginfo_t], CVoidPtr, Unit]
): Unit =
p._4 = value
}
def struct_sigaction()(implicit z: Zone): Ptr[sigaction] = alloc[sigaction]()
// mcontext_t - platform specific
implicit class ucontext_t_ops(val p: Ptr[ucontext_t]) extends AnyVal {
def uc_link: CVoidPtr = p._1
def uc_link_=(value: CVoidPtr): Unit = p._1 = value
def c_sigmask: sigset_t = p._2
def c_sigmask_=(value: sigset_t): Unit = p._2 = value
def uc_stack: Ptr[stack_t] = p._3
def uc_stack_=(value: Ptr[stack_t]): Unit = p._3 = value
def uc_mcontext: mcontext_t = p._4
def uc_mcontext_=(value: mcontext_t): Unit = p._4 = value
}
def struct_ucontext_t()(implicit z: Zone): Ptr[ucontext_t] =
alloc[ucontext_t]()
implicit class stack_t_ops(val p: Ptr[stack_t]) extends AnyVal {
def ss_sp: CVoidPtr = p._1
def ss_sp_=(value: CVoidPtr): Unit = p._1 = value
def ss_size: size_t = p._2
def ss_size_=(value: size_t): Unit = p._2 = value
def ss_flags: CInt = p._3
def ss_flags_=(value: CInt): Unit = p._3 = value
}
def struct_stack_t()(implicit z: Zone): Ptr[stack_t] = alloc[stack_t]()
implicit class siginfo_t_ops(val p: Ptr[siginfo_t]) extends AnyVal {
def si_signo: CInt = p._1
def si_signo_=(value: CInt): Unit = p._1 = value
def si_errno: CInt = p._2
def si_errno_=(value: CInt): Unit = p._2 = value
def si_code: CInt = p._3
def si_code_=(value: CInt): Unit = p._3 = value
def si_pid: pid_t = p._4
def si_pid_=(value: pid_t): Unit = p._4 = value
def si_uid: uid_t = p._5
def si_uid_=(value: uid_t): Unit = p._5 = value
def si_addr: CVoidPtr = p._6
def si_addr_=(value: CVoidPtr): Unit = p._6 = value
def si_status: CInt = p._7
def si_status_=(value: CInt): Unit = p._7 = value
def si_band: CLong = p._8
def si_band_=(value: CLong): Unit = p._8 = value
def si_value: sigval = !(p._9)
def si_value_=(value: sigval): Unit =
!p._9.asInstanceOf[Ptr[CArray[Byte, Nat._8]]] = value
}
def struct_siginfo_t()(implicit z: Zone): Ptr[siginfo_t] = alloc[siginfo_t]()
}
