class Thread

Overview

Match data is unique per thread.

Match data contains a buffer for backtracking when matching in interpreted mode (non-JIT). This buffer is heap-allocated and should be re-used for subsequent matches.

Only a single match function can run per thread at any given time, so there can't be any concurrent access to the match data buffer.

Included Modules

Defined in:

crystal/system/thread.cr
crystal/system/thread_condition_variable.cr
crystal/system/thread_linked_list.cr
crystal/system/thread_mutex.cr
crystal/system/unix/pthread_condition_variable.cr
crystal/system/unix/pthread_mutex.cr
regex/pcre2.cr:241
regex/pcre2.cr:255

Constructors

Class Method Summary

Instance Method Summary

Instance methods inherited from module Crystal::System::Thread

to_unsafe to_unsafe

Class methods inherited from module Crystal::System::Thread

current_handle : Handle current_handle, current_thread : ::Thread current_thread, current_thread=(current_thread : ::Thread) current_thread=, current_thread? : ::Thread | Nil current_thread?, init : Nil init, init_suspend_resume : Nil init_suspend_resume, sig_resume : ::Signal sig_resume, sig_suspend : ::Signal sig_suspend, sleep(time : ::Time::Span) : Nil sleep, thread_proc(data : Pointer(Void)) : Pointer(Void) thread_proc, yield_current : Nil yield_current

Instance methods inherited from class Reference

==(other : self)
==(other : JSON::Any)
==(other : YAML::Any)
==(other)
==
, dup dup, hash(hasher) hash, initialize initialize, inspect(io : IO) : Nil inspect, object_id : UInt64 object_id, pretty_print(pp) : Nil pretty_print, same?(other : Reference) : Bool
same?(other : Nil)
same?
, to_s(io : IO) : Nil to_s

Constructor methods inherited from class Reference

new new, unsafe_construct(address : Pointer, *args, **opts) : self unsafe_construct

Class methods inherited from class Reference

pre_initialize(address : Pointer) pre_initialize

Instance methods inherited from class Object

! : Bool !, !=(other) !=, !~(other) !~, ==(other) ==, ===(other : JSON::Any)
===(other : YAML::Any)
===(other)
===
, =~(other) =~, as(type : Class) as, as?(type : Class) as?, class class, dup dup, hash(hasher)
hash
hash
, in?(collection : Object) : Bool
in?(*values : Object) : Bool
in?
, inspect(io : IO) : Nil
inspect : String
inspect
, is_a?(type : Class) : Bool is_a?, itself itself, nil? : Bool nil?, not_nil!(message)
not_nil!
not_nil!
, pretty_inspect(width = 79, newline = "\n", indent = 0) : String pretty_inspect, pretty_print(pp : PrettyPrint) : Nil pretty_print, responds_to?(name : Symbol) : Bool responds_to?, tap(&) tap, to_json(io : IO) : Nil
to_json : String
to_json
, to_pretty_json(indent : String = " ") : String
to_pretty_json(io : IO, indent : String = " ") : Nil
to_pretty_json
, to_s(io : IO) : Nil
to_s : String
to_s
, to_yaml(io : IO) : Nil
to_yaml : String
to_yaml
, try(&) try, unsafe_as(type : T.class) forall T unsafe_as

Class methods inherited from class Object

from_json(string_or_io : String | IO, root : String)
from_json(string_or_io : String | IO)
from_json
, from_yaml(string_or_io : String | IO) from_yaml

Macros inherited from class Object

class_getter(*names, &block) class_getter, class_getter!(*names) class_getter!, class_getter?(*names, &block) class_getter?, class_property(*names, &block) class_property, class_property!(*names) class_property!, class_property?(*names, &block) class_property?, class_setter(*names) class_setter, def_clone def_clone, def_equals(*fields) def_equals, def_equals_and_hash(*fields) def_equals_and_hash, def_hash(*fields) def_hash, delegate(*methods, to object) delegate, forward_missing_to(delegate) forward_missing_to, getter(*names, &block) getter, getter!(*names) getter!, getter?(*names, &block) getter?, property(*names, &block) property, property!(*names) property!, property?(*names, &block) property?, setter(*names) setter

Constructor Detail

def self.current : Thread #

Returns the Thread object associated to the running system thread.


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def self.new(name : String | Nil = nil, &func : Thread -> ) #

Creates and starts a new system thread.


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def self.new #

Used once to initialize the thread object representing the main thread of the process (that already exists).


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Class Method Detail

def self.delay(backoff : Int32) : Int32 #

Delays execution for a brief moment.


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def self.each(&) #

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def self.init : Nil #

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def self.lock : Nil #

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def self.name=(name : String) : String #

Changes the name of the current thread.


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def self.sleep(time : Time::Span) : Nil #

Blocks the current thread for the duration of time. Clock precision is dependent on the operating system and hardware.


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def self.start_world : Nil #

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def self.stop_world : Nil #

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def self.unlock : Nil #

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def self.unsafe_each(&) #

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def self.yield : Nil #

Yields the currently running thread.


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Instance Method Detail

def current_fiber : Fiber #

Returns the Fiber currently running on the thread.


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def current_fiber=(current_fiber : Fiber) #

Returns the Fiber currently running on the thread.


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def current_fiber? : Fiber | Nil #

Returns the Fiber currently running on the thread.


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def gc_thread_handler : Pointer(Void) #

Holds the GC thread handler


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def gc_thread_handler=(gc_thread_handler : Pointer(Void)) #

Holds the GC thread handler


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def inspect(io : IO) : Nil #
Description copied from class Reference

Appends a String representation of this object which includes its class name, its object address and the values of all instance variables.

class Person
  def initialize(@name : String, @age : Int32)
  end
end

Person.new("John", 32).inspect # => #<Person:0x10fd31f20 @name="John", @age=32>

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def internal_name=(name : String) #

Changes the Thread#name property but doesn't update the system name. Useful on the main thread where we'd change the process name (e.g. top, ps, ...).


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def join : Nil #

Suspends the current thread until this thread terminates.


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def main_fiber : Fiber #

Returns the Fiber representing the thread's main stack.


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def main_fiber? : Fiber | Nil #

Returns the Fiber representing the thread's main stack.


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def name : String | Nil #

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def resume : Nil #

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def suspend : Nil #

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def to_s(io : IO) : Nil #
Description copied from class Reference

Appends a short String representation of this object which includes its class name and its object address.

class Person
  def initialize(@name : String, @age : Int32)
  end
end

Person.new("John", 32).to_s # => #<Person:0x10a199f20>

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def wait_suspended : Nil #

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