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- Wait_(system_call) abstract "In modern computer operating systems, a process (or task) may wait on another process to complete its execution. In most systems, a parent process can create an 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 executes. When the child process terminates, it returns an exit status to the operating system, which is then returned to the waiting parent process. The parent process then resumes execution.Modern operating systems also provide system calls that allow process threads to create other threads and wait for them to terminate ("join" them) in a similar fashion.An operating system may provide variations of the wait call that allow a process to wait for any of its children processes to exit, or to wait for a single specific child process (identified by its process-ID) to exit.Some operating systems issue a signal (SIGCHLD) to the parent process when a child process terminates, notifying the parent process and allowing it to then retrieve the child process's exit status.The exit status returned by a child process typically indicates whether the process terminated normally or abnormally. For normal termination, this status also includes the exit code (usually an integer value) that the process returned to the system. During the first 20 years of UNIX, only the low 8 bits of the exit code have been available to the waiting parent. In 1989 with SVR4, a new call waitid has been introduced that returns all bits from the exit call in a structure called siginfo_t in the structure member si_status. Waitid is a mandatory part of the POSIX standard since 2001.".
- Wait_(system_call) wikiPageID "9780918".
- Wait_(system_call) wikiPageLength "4135".
- Wait_(system_call) wikiPageOutDegree "28".
- Wait_(system_call) wikiPageRevisionID "670356336".
- Wait_(system_call) wikiPageWikiLink Abnormal_end.
- Wait_(system_call) wikiPageWikiLink Category:C_POSIX_library.
- Wait_(system_call) wikiPageWikiLink Category:Process_(computing).
- Wait_(system_call) wikiPageWikiLink Category:System_calls.
- Wait_(system_call) wikiPageWikiLink Child_process.
- Wait_(system_call) wikiPageWikiLink Computer.
- Wait_(system_call) wikiPageWikiLink Exit_(operating_system).
- Wait_(system_call) wikiPageWikiLink Exit_(system_call).
- Wait_(system_call) wikiPageWikiLink Exit_status.
- Wait_(system_call) wikiPageWikiLink Fork_(operating_system).
- Wait_(system_call) wikiPageWikiLink Fork_(system_call).
- Wait_(system_call) wikiPageWikiLink Join_(threads).
- Wait_(system_call) wikiPageWikiLink Operating_system.
- Wait_(system_call) wikiPageWikiLink Orphan_process.
- Wait_(system_call) wikiPageWikiLink Parent_process.
- Wait_(system_call) wikiPageWikiLink Process_(computing).
- Wait_(system_call) wikiPageWikiLink Process_identifier.
- Wait_(system_call) wikiPageWikiLink Process_table.
- Wait_(system_call) wikiPageWikiLink Resource_leak.
- Wait_(system_call) wikiPageWikiLink SIGCHLD.
- Wait_(system_call) wikiPageWikiLink Signal_(computing).
- Wait_(system_call) wikiPageWikiLink Spawn_(computing).
- Wait_(system_call) wikiPageWikiLink System_call.
- Wait_(system_call) wikiPageWikiLink Task_(computing).
- Wait_(system_call) wikiPageWikiLink Thread_(computing).
- Wait_(system_call) wikiPageWikiLink UNIX_System_V.
- Wait_(system_call) wikiPageWikiLink Unix_signal.
- Wait_(system_call) wikiPageWikiLink Wait_(command).
- Wait_(system_call) wikiPageWikiLink Zombie_process.
- Wait_(system_call) wikiPageWikiLinkText "Wait (system call)".
- Wait_(system_call) wikiPageWikiLinkText "wait (system call)".
- Wait_(system_call) wikiPageWikiLinkText "wait".
- Wait_(system_call) wikiPageWikiLinkText "waitid".
- Wait_(system_call) hasPhotoCollection Wait_(system_call).
- Wait_(system_call) wikiPageUsesTemplate Template:Also.
- Wait_(system_call) wikiPageUsesTemplate Template:Cn.
- Wait_(system_call) wikiPageUsesTemplate Template:Lowercase.
- Wait_(system_call) wikiPageUsesTemplate Template:Unreferenced.
- Wait_(system_call) subject Category:C_POSIX_library.
- Wait_(system_call) subject Category:Process_(computing).
- Wait_(system_call) subject Category:System_calls.
- Wait_(system_call) type Thing.
- Wait_(system_call) comment "In modern computer operating systems, a process (or task) may wait on another process to complete its execution. In most systems, a parent process can create an 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 executes. When the child process terminates, it returns an exit status to the operating system, which is then returned to the waiting parent process.".
- Wait_(system_call) label "Wait (system call)".
- Wait_(system_call) seeAlso Zombie_process.
- Wait_(system_call) sameAs Wait_(فراخوان_سیستمی).
- Wait_(system_call) sameAs m.02pr_6z.
- Wait_(system_call) sameAs Q2908554.
- Wait_(system_call) sameAs Q2908554.
- Wait_(system_call) sameAs Wait_(Unix).
- Wait_(system_call) wasDerivedFrom Wait_(system_call)?oldid=670356336.
- Wait_(system_call) isPrimaryTopicOf Wait_(system_call).