getppid(2) - NetBSD Manual Pages

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GETPID(2)                 NetBSD System Calls Manual                 GETPID(2)


NAME

     getpid, getppid -- get parent or calling process identification


LIBRARY

     Standard C Library (libc, -lc)


SYNOPSIS

     #include <unistd.h>

     pid_t
     getpid(void);

     pid_t
     getppid(void);


DESCRIPTION

     getpid() returns the process ID of the calling process.  The ID is guar-
     anteed to be unique and is useful for constructing temporary file names.

     getppid() returns the process ID of the parent of the calling process.


ERRORS

     The getpid() and getppid() functions are always successful, and no return
     value is reserved to indicate an error.


SEE ALSO

     gethostid(3)


STANDARDS

     getpid() and getppid() conform to ISO/IEC 9945-1:1990 (``POSIX.1'').


HISTORY

     The getpid() function appeared in Version 5 AT&T UNIX.

NetBSD 10.0                      April 3, 2010                     NetBSD 10.0