independently executing child process. The parent process may then issue a wait system call, which suspends the execution of the parent process while the child...
4 KB (539 words) - 18:32, 20 November 2024
generate Program Call (PC). On Unix, Unix-like and other POSIX-compliant operating systems, popular system calls are open, read, write, close, wait, exec, fork...
20 KB (2,306 words) - 02:06, 16 June 2025
functionality.) Fork bomb Fork–exec exit (system call) spawn (computing) wait (system call) Nyman, Linus (25 August 2016). "Notes on the History of Fork and...
17 KB (2,188 words) - 10:29, 12 July 2025
Audible tone which indicates an incoming call. 440 Hz 5 ms. Problems playing this file? See media help. Call waiting is a telephone service where a subscriber...
5 KB (718 words) - 15:21, 12 May 2022
read its child's exit status: once the exit status is read via the wait system call, the zombie's entry is removed from the process table and it is said...
9 KB (1,344 words) - 06:08, 10 July 2025
Band from The J. Geils Band, 1970 Wait (command), computer shell command Wait (system call), operating system call Wait Chapel, building on the campus of...
3 KB (431 words) - 13:02, 29 April 2025
way to get rid of them is to reboot the system. Signal System time sleep (command) Sleep mode wait (system call) MSDN Library Reference - Sleep() "winapi...
8 KB (936 words) - 10:45, 19 June 2025
operating system and a SIGCHLD signal is sent to the parent process. The exit status can then be retrieved by the parent process via the wait system call. Most...
10 KB (1,034 words) - 21:41, 16 July 2025
system call. This system call facilitates passing the exit status code back to the parent, which can retrieve this value using the wait system call....
15 KB (1,646 words) - 14:17, 19 January 2025
Spurious wakeup (category Operating system stubs)
without the condition being assigned if the process is signaled; the wait system call aborts and returns EINTR. The Linux p-thread implementation of condition...
4 KB (444 words) - 19:50, 21 January 2025
Queue area (redirect from Wait in line)
queueing is sometimes replaced by virtual queueing. In a waiting room there may be a system whereby the queuer asks and remembers where their place is...
14 KB (1,634 words) - 23:13, 27 May 2025
background process [2] 1986 $ wait %2 # waits for background job number 2 to terminate, then returns wait (system call) The Wikibook Guide to Unix has...
3 KB (304 words) - 15:23, 16 May 2025
Because the child is still consuming system resources but not executing it is known as a zombie process. The wait system call is commonly invoked in the SIGCHLD...
5 KB (631 words) - 23:50, 30 April 2025
Process state (section Swapped out and waiting)
the process table as a zombie process until its parent process calls the wait system call to read its exit status, at which point the process is removed...
7 KB (939 words) - 16:08, 17 May 2025
Asynchronous System Trap (AST). The call may also be issued as QIOW (Queue I/O and Wait for completion), allowing synchronous I/O. In this case, the wait-for-event-flag...
6 KB (985 words) - 14:43, 23 October 2023
For most file systems, a program initializes access to a file in a file system using the open system call. This allocates resources associated to the...
9 KB (1,136 words) - 14:04, 12 July 2025
operating system to clean up the resources used by a child process after its termination without an explicit call to the wait system call. SIGCONT The...
31 KB (3,432 words) - 00:48, 4 May 2025
expensive system calls to request operations on the wait queue (for example to wake up waiting processes, or to put the current process on the wait queue)...
9 KB (992 words) - 14:42, 26 May 2025
any system call in progress. In fact, it is possible for a process to put itself into a "hibernate" state (with the $HIBER system call), or to wait for...
6 KB (865 words) - 18:40, 24 November 2024
A call-to-gate system is an airport terminal design in which passengers are kept in a central area until shortly before their flight is due to board,...
2 KB (195 words) - 05:12, 25 June 2020
Wait Wait... Don't Tell Me! is an hour-long weekly news radio panel show produced by WBEZ and National Public Radio (NPR) in Chicago, Illinois. On the...
24 KB (2,193 words) - 15:20, 15 June 2025
Anonymous pipe (redirect from Pipe system call)
is well integrated into most Unix-like operating systems. Pipes are created using the pipe system call, which creates a new pipe and returns a pair of...
3 KB (399 words) - 12:07, 4 April 2020
call centers and other businesses to improve wait times for users. Call centers use an Automatic Call Distributor (ACD) to distribute incoming calls to...
10 KB (1,147 words) - 11:46, 6 June 2025
Kqueue (category System calls)
and modified using a single call. The changelist array can be used to pass modifications (changing the type of events to wait for, register new event sources...
7 KB (684 words) - 22:25, 15 April 2025
Deadlock (computer science) (redirect from Circular wait)
operating system, a deadlock occurs when a process or thread enters a waiting state because a requested system resource is held by another waiting process...
25 KB (2,530 words) - 09:36, 26 July 2025
The 4030 Call System (Persian: سامانه تلفنی ۴۰۳۰) briefly "4030-system" is the Iranian telephone system that was created during the early days of the COVID-19...
15 KB (956 words) - 18:21, 23 July 2025
by the hardware and frequently makes system calls to an OS function or is interrupted by it. Operating systems are found on many devices that contain...
70 KB (8,177 words) - 07:24, 23 July 2025
Monitor (synchronization) (section Spin-waiting)
allows them to wait for the state to change. They provide a mechanism for threads to temporarily give up exclusive access in order to wait for some condition...
59 KB (7,843 words) - 00:27, 2 April 2025
could call an operating system delay function, but doing so may consume more time than would be expended in spinning for a few clock cycles waiting for...
7 KB (842 words) - 07:15, 10 June 2025
operating system resource. Many embedded systems and RTOSs, however, allow the application itself to run in kernel mode for greater system call efficiency...
16 KB (2,275 words) - 03:27, 20 June 2025