Namespaces
Variants
Views
Actions

Difference between revisions of "cpp/thread/future status"

From cppreference.com
< cpp‎ | thread
(added see also)
m (~)
 
(5 intermediate revisions by 2 users not shown)
Line 1: Line 1:
 
{{cpp/title|future_status}}
 
{{cpp/title|future_status}}
 
{{cpp/thread/navbar}}
 
{{cpp/thread/navbar}}
−
{{ddcl | header=future | notes={{mark since c++11}} | 1=
+
{{ddcl | header=future | since=c++11 | 1=
 
enum class future_status {
 
enum class future_status {
 
     ready,
 
     ready,
Line 9: Line 9:
 
}}
 
}}
  
−
Specifies state of a future as returned by {{tt|wait_for}} and {{tt|wait_until}} functions of {{c|std::future}} and {{c|std::shared_future}}.
+
Specifies state of a future as returned by {{tt|wait_for}} and {{tt|wait_until}} functions of {{lc|std::future}} and {{lc|std::shared_future}}.
  
−
{{dcl list begin}}
+
===Constants===
−
{{dcl list hitem | Constant | Explanation}}
+
{{dsc begin}}
−
{{dcl list item | {{tt|deferred}} | the shared state contains a deferred function, so the result will be computed only when explicitly requested}}
+
{{dsc hitem|Name|Explanation}}
−
{{dcl list item | {{tt|ready}} | the shared state is ready}}
+
{{dsc|{{tt|deferred}}|the shared state contains a deferred function, so the result will be computed only when explicitly requested}}
−
{{dcl list item | {{tt|timeout}} | the shared state did not become ready before specified timeout duration has passed}}
+
{{dsc|{{tt|ready}}|the shared state is ready}}
−
{{dcl list end}}
+
{{dsc|{{tt|timeout}}|the shared state did not become ready before specified timeout duration has passed}}
 +
{{dsc end}}
  
 
===See also===
 
===See also===
−
{{dcl list begin}}
+
{{dsc begin}}
−
{{dcl list template | cpp/thread/future/dcl list wait_for|future}}
+
{{dsc inc | cpp/thread/future/dsc wait_for|future}}
−
{{dcl list template | cpp/thread/future/dcl list wait_for|shared_future}}
+
{{dsc inc | cpp/thread/future/dsc wait_for|shared_future}}
−
{{dcl list template | cpp/thread/future/dcl list wait_until|future}}
+
{{dsc inc | cpp/thread/future/dsc wait_until|future}}
−
{{dcl list template | cpp/thread/future/dcl list wait_until|shared_future}}
+
{{dsc inc | cpp/thread/future/dsc wait_until|shared_future}}
−
{{dcl list end}}
+
{{dsc end}}
 +
 
 +
{{langlinks|de|es|fr|it|ja|pt|ru|zh}}

Latest revision as of 07:39, 9 July 2024

 
C++
 
Concurrency support library
Threads
(C++11)
(C++20)
(C++17)(C++17)
this_thread namespace
(C++11)
(C++11)
(C++11)
(C++11)
Cooperative cancellation
Mutual exclusion
(C++11)
(C++11)
(C++17)
Generic lock management
(C++11)
(C++11)
(C++17)
(C++11)
(C++14)
(C++11)
(C++11)
(C++11)
(C++11)(C++11)(C++11)(C++11)(C++11)(C++11)
Condition variables
(C++11)
(C++11)
(C++11)
(C++11)
Semaphores
(C++20)(C++20)
Latches and Barriers
(C++20)
(C++20)
Futures
(C++11)
(C++11)
(C++11)
(C++11)
(C++11)
(C++11)
future_status
(C++11)
(C++11)
(C++11)
(C++11)
Safe Reclamation
(C++26)
(C++26)
(C++26)
Hazard Pointers
(C++26)
(C++26)
(C++26)
Atomic types
(C++11)
(C++20)
(C++11)
Initialization of atomic types
(C++11)(deprecated in C++20)
(C++11)(deprecated in C++20)
(C++11)
Memory ordering
(C++11)
(C++11)
(C++11)
(C++11)
Free functions for atomic operations
(C++11)(C++11)
(C++11)(C++11)
(C++11)(C++11)
(C++11)(C++11)(C++11)(C++11)
(C++11)(C++11)
(C++11)(C++11)
(C++11)(C++11)
(C++11)(C++11)
(C++11)(C++11)
(C++26)(C++26)
(C++26)(C++26)
(C++11)
(C++20)(C++20)
(C++20)
(C++20)
Free functions for atomic flags
(C++11)(C++11)
(C++11)(C++11)
(C++20)(C++20)
(C++20)(C++20)
(C++20)
(C++20)
 
Defined in header <future>
enum class future_status {

    ready,
    timeout,
    deferred

};
 (since C++11)

Specifies state of a future as returned by wait_for and wait_until functions of std::future and std::shared_future.

[edit] Constants

Name Explanation
deferred the shared state contains a deferred function, so the result will be computed only when explicitly requested
ready the shared state is ready
timeout the shared state did not become ready before specified timeout duration has passed

[edit] See also

 waits for the result, returns if it is not available for the specified timeout duration
(public member function of std::future<T>) [edit]
waits for the result, returns if it is not available for the specified timeout duration
(public member function of std::shared_future<T>) [edit]
waits for the result, returns if it is not available until specified time point has been reached
(public member function of std::future<T>) [edit]
waits for the result, returns if it is not available until specified time point has been reached
(public member function of std::shared_future<T>) [edit]
Retrieved from "https://en.cppreference.com/mwiki/index.php?title=cpp/thread/future_status&oldid=173416"