получить идентификатор группы процессов вызывающего процесса (get the process group ID of the calling process)
Пролог (Prolog)
This manual page is part of the POSIX Programmer's Manual. The
Linux implementation of this interface may differ (consult the
corresponding Linux manual page for details of Linux behavior),
or the interface may not be implemented on Linux.
Имя (Name)
getpgrp — get the process group ID of the calling process
Синопсис (Synopsis)
#include <unistd.h>
pid_t getpgrp(void);
Описание (Description)
The getpgrp() function shall return the process group ID of the
calling process.
Возвращаемое значение (Return value)
The getpgrp() function shall always be successful and no return
value is reserved to indicate an error.
Ошибки (Error)
No errors are defined.
The following sections are informative.
Примеры (Examples)
None.
Использование в приложениях (Application usage)
None.
Обоснование (Rationale)
4.3 BSD provides a getpgrp() function that returns the process
group ID for a specified process. Although this function supports
job control, all known job control shells always specify the
calling process with this function. Thus, the simpler System V
getpgrp() suffices, and the added complexity of the 4.3 BSD
getpgrp() is provided by the XSI extension getpgid().
Будущие направления (Future directions)
None.
Смотри также (See also)
exec(1p), fork(3p), getpgid(3p), getpid(3p), getppid(3p),
kill(3p), setpgid(3p), setsid(3p)
The Base Definitions volume of POSIX.1‐2017, sys_types.h(0p),
unistd.h(0p)
