GETPID(2) | System Calls Manual | GETPID(2) |
getpid
, getppid
—
#include <unistd.h>
pid_t
getpid
(void);
pid_t
getppid
(void);
getpid
() returns the process ID of the calling process.
The ID is guaranteed to be unique and is useful for constructing temporary
file names.
getppid
() returns the process ID of the
parent of the calling process.
getpid
() and getppid
()
functions are always successful, and no return value is reserved to indicate
an error.
getpid
() and getppid
() conform
to IEEE Std 1003.1-1990 (“POSIX.1”).
getpid
() function appeared in
Version 5 AT&T UNIX.
April 3, 2010 | NetBSD 9.2 |