DragonFly On-Line Manual Pages

GETPID(2)                DragonFly System Calls Manual               GETPID(2)

NAME
     getpid, getppid -- get parent or calling process identification

LIBRARY
     Standard C Library (libc, -lc)

SYNOPSIS
     #include <sys/types.h>
     #include <unistd.h>

     pid_t
     getpid(void);

     pid_t
     getppid(void);

DESCRIPTION
     Getpid() returns the process ID of the calling process.  Though the ID is
     guaranteed to be unique, it should NOT be used for constructing temporary
     file names, for security reasons; see mkstemp(3) instead.

     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
     lwp_gettid(2), gethostid(3)

STANDARDS
     The getpid() and getppid() function calls are expected to conform to
     ISO/IEC 9945-1:1990 (``POSIX.1'').

HISTORY
     A getpid() function call appeared in Version 7 AT&T UNIX.

DragonFly 3.5                    June 4, 1993                    DragonFly 3.5