module Signal: sig .. end
of_system_int and to_system_int return and take respectively a signal number
corresponding to those in the system's /usr/include/bits/signum.h (or equivalent). It
is not guaranteed that these numbers are portable across any given pair of systems --
although some are defined as standard by POSIX.
type
include Comparable.S
include Hashable.S
include Stringable.S
val equal : t -> t -> bool
val of_system_int : int -> t
of_system_int and to_system_int return and take respectively a signal number
corresponding to those in the system's /usr/include/bits/signum.h (or equivalent). It
is not guaranteed that these numbers are portable across any given pair of systems --
although some are defined as standard by POSIX.
val to_system_int : t -> int
val of_caml_int : int -> t
of_caml_int constructs a Signal.t given an O'Caml internal signal number. This is
only for the use of the Core_unix module.
val to_caml_int : t -> int
val to_string : t -> string
to_string t returns a human-readable name: "sigabrt", "sigalrm", ...
type [ `Continue | `Dump_core | `Ignore | `Stop | `Terminate ]
The default behaviour of the system if these signals trickle to the top level of a
program. See include/linux/kernel.h in the Linux kernel source tree (not the file
/usr/include/linux/kernel.h).
type [ `Default | `Handle of t -> unit | `Ignore ]
val default_sys_behavior : t -> sys_behavior
default_sys_behavior t
Query the default system behavior for a signal.
val signal : t -> behavior -> behavior
signal t
Set the behavior of the system on receipt of a given signal. The
first argument is the signal number. Return the behavior
previously associated with the signal. If the signal number is
invalid (or not available on your system), an Invalid_argument
exception is raised.
val set : t -> behavior -> unit
set t b is ignore (signal t b)
val handle : t -> (t -> unit) -> unit
handle t f is set t (`Handle f).
val handle_default : t -> unit
handle_default t is set t `Default.
val ignore : t -> unit
ignore t is set t `Ignore.
type [ `Group of Core_kernel.Std.Pid.t | `My_group | `Pid of Core_kernel.Std.Pid.t ]
val send : t -> pid_spec -> [ `No_such_process | `Ok ]
send signal pid sends signal to the process whose process id is pid.
val send_i : t -> pid_spec -> unit
send_i signal ~pid sends signal to the process whose process id is pid.
* No exception will be raised if pid is a zombie or nonexistent.
val send_exn : t -> pid_spec -> unit
send_exn signal ~pid sends signal to the process whose process id is
* pid. In Caml's standard library, this is called Unix.kill. Sending a
* signal to a zombie and/or nonexistent process will raise an exception.
val can_send_to : Core_kernel.Std.Pid.t -> bool
can_send_to pid returns true if pid is running and the current process has
permission to send it signals.
type [ `Block | `Set | `Unblock ]
val sigprocmask : sigprocmask_command -> t list -> t list
sigprocmask cmd sigs changes the set of blocked signals.
* If cmd is `Set, blocked signals are set to those in the list sigs.
* If cmd is `Block, the signals in sigs are added to the set of blocked
* signals.
* If cmd is `Unblock, the signals in sigs are removed from the set of
* blocked signals.
* sigprocmask returns the set of previously blocked signals.
val sigpending : unit -> t list
sigpending () returns the set of blocked signals that are currently
* pending.
val sigsuspend : t list -> unit
sigsuspend sigs atomically sets the blocked signals to sigs and waits for
* a non-ignored, non-blocked signal to be delivered. On return, the blocked
* signals are reset to their initial value.
Specific signals, along with their default behavior and meaning.
val abrt : t
Dump_core Abnormal termination
val alrm : t
Terminate Timeout
val chld : t
Ignore Child process terminated
val cont : t
Continue Continue
val fpe : t
Dump_core Arithmetic exception
val hup : t
Terminate Hangup on controlling terminal
val ill : t
Dump_core Invalid hardware instruction
val int : t
Terminate Interactive interrupt (ctrl-C)
val kill : t
Terminate Termination (cannot be ignored)
val pipe : t
Terminate Broken pipe
val prof : t
Terminate Profiling interrupt
val quit : t
Dump_core Interactive termination
val segv : t
Dump_core Invalid memory reference
val stop : t
Stop Stop
val term : t
Terminate Termination
val tstp : t
Stop Interactive stop
val ttin : t
Stop Terminal read from background process
val ttou : t
Stop Terminal write from background process
val usr1 : t
Terminate Application-defined signal 1
val usr2 : t
Terminate Application-defined signal 2
val vtalrm : t
Terminate Timeout in virtual time
val zero : t
val t_of_sexp : Sexplib.Sexp.t -> t
val sexp_of_t : t -> Sexplib.Sexp.t
val bin_t : t Core_kernel.Std.Bin_prot.Type_class.t
val bin_read_t : t Core_kernel.Std.Bin_prot.Read_ml.reader
val bin_read_t_ : t Core_kernel.Std.Bin_prot.Unsafe_read_c.reader
val bin_read_t__ : (int -> t) Core_kernel.Std.Bin_prot.Unsafe_read_c.reader
val bin_reader_t : t Core_kernel.Std.Bin_prot.Type_class.reader
val bin_size_t : t Core_kernel.Std.Bin_prot.Size.sizer
val bin_write_t : t Core_kernel.Std.Bin_prot.Write_ml.writer
val bin_write_t_ : t Core_kernel.Std.Bin_prot.Unsafe_write_c.writer
val bin_writer_t : t Core_kernel.Std.Bin_prot.Type_class.writer
of_system_int and to_system_int return and take respectively a signal number
corresponding to those in the system's /usr/include/bits/signum.h (or equivalent). It
is not guaranteed that these numbers are portable across any given pair of systems --
although some are defined as standard by POSIX.
of_caml_int constructs a Signal.t given an O'Caml internal signal number. This is
only for the use of the Core_unix module.
to_string t returns a human-readable name: "sigabrt", "sigalrm", ...
val sys_behavior_of_sexp : Sexplib.Sexp.t -> sys_behavior
The default behaviour of the system if these signals trickle to the top level of a
program. See include/linux/kernel.h in the Linux kernel source tree (not the file
/usr/include/linux/kernel.h).
val __sys_behavior_of_sexp__ : Sexplib.Sexp.t -> sys_behavior
val sexp_of_sys_behavior : sys_behavior -> Sexplib.Sexp.t
default_sys_behavior t
Query the default system behavior for a signal.
signal t
Set the behavior of the system on receipt of a given signal. The
first argument is the signal number. Return the behavior
previously associated with the signal. If the signal number is
invalid (or not available on your system), an Invalid_argument
exception is raised.
set t b is ignore (signal t b)
handle t f is set t (`Handle f).
handle_default t is set t `Default.
ignore t is set t `Ignore.
send signal pid sends signal to the process whose process id is pid.
send_i signal ~pid sends signal to the process whose process id is pid.
* No exception will be raised if pid is a zombie or nonexistent.
send_exn signal ~pid sends signal to the process whose process id is
* pid. In Caml's standard library, this is called Unix.kill. Sending a
* signal to a zombie and/or nonexistent process will raise an exception.
can_send_to pid returns true if pid is running and the current process has
permission to send it signals.
sigprocmask cmd sigs changes the set of blocked signals.
* If cmd is `Set, blocked signals are set to those in the list sigs.
* If cmd is `Block, the signals in sigs are added to the set of blocked
* signals.
* If cmd is `Unblock, the signals in sigs are removed from the set of
* blocked signals.
* sigprocmask returns the set of previously blocked signals.
sigpending () returns the set of blocked signals that are currently
* pending.
sigsuspend sigs atomically sets the blocked signals to sigs and waits for
* a non-ignored, non-blocked signal to be delivered. On return, the blocked
* signals are reset to their initial value.
Specific signals, along with their default behavior and meaning.
Dump_core Abnormal termination
Terminate Timeout
Ignore Child process terminated
Continue Continue
Dump_core Arithmetic exception
Terminate Hangup on controlling terminal
Dump_core Invalid hardware instruction
Terminate Interactive interrupt (ctrl-C)
Terminate Termination (cannot be ignored)
Terminate Broken pipe
Terminate Profiling interrupt
Dump_core Interactive termination
Dump_core Invalid memory reference
Stop Stop
Terminate Termination
Stop Interactive stop
Stop Terminal read from background process
Stop Terminal write from background process
Terminate Application-defined signal 1
Terminate Application-defined signal 2
Terminate Timeout in virtual time
Ignore No-op; can be used to test whether the target
process exists and the current process has
permission to signal it