| ost::Runlist(3) | Library Functions Manual | ost::Runlist(3) |
NAME¶
ost::Runlist - A runlist is used to restrict concurrent exection to a limited set of concurrent sessions, much like a semaphore.
SYNOPSIS¶
#include <misc.h>
Inherits ost::Mutex.
Public Member Functions¶
Runlist (unsigned count=1)
Create a new runlist with a specified limit. bool add (Runable
*run)
Add a runable object to this runlist. void del (Runable *run)
Remove a runable object from the wait list or notify when it is done running
so that the used count can be decremented. void set (unsigned
limit)
Set the limit.
Protected Member Functions¶
void check (void)
Protected Attributes¶
unsigned limit
unsigned used
Additional Inherited Members¶
Detailed Description¶
A runlist is used to restrict concurrent exection to a limited set of concurrent sessions, much like a semaphore.
However, the runlist differs in that it notifies objects when they become ready to run, rather than requiring them to wait and 'block' for the semaphore count to become low enough to continue.
Author
list of runable objects.
Constructor & Destructor Documentation¶
ost::Runlist::Runlist (unsigned count = 1)¶
Create a new runlist with a specified limit.
Parameters
Member Function Documentation¶
bool ost::Runlist::add (Runable * run)¶
Add a runable object to this runlist. If the number of entries running is below the limit, then add returns true otherwise the entry is added to the list.
Returns
Parameters
void ost::Runlist::check (void) [protected]¶
void ost::Runlist::del (Runable * run)¶
Remove a runable object from the wait list or notify when it is done running so that the used count can be decremented.
Parameters
void ost::Runlist::set (unsigned limit)¶
Set the limit.
Parameters
Member Data Documentation¶
unsigned ost::Runlist::limit [protected]¶
unsigned ost::Runlist::used [protected]¶
Author¶
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| Sun Dec 27 2020 | GNU CommonC++ |