Manual Pages for UNIX Operating System command usage for man getdtablesize

Standard C Library Functions                    getdtablesize(3C)



NAME
     getdtablesize - get the file descriptor table size

SYNOPSIS
     #include 

     int getdtablesize(void);


DESCRIPTION
     The getdtablesize() function is equivalent  to  getrlimit(2)
     with the RLIMIT_NOFILE option.

RETURN VALUES
     The getdtablesize() function returns the current soft  limit
     as   if  obtained  from  a  call  to  getrlimit()  with  the
     RLIMIT_NOFILE option.

ERRORS
     No errors are defined.

USAGE
     There is no direct relationship between the  value  returned
     by getdtablesize() and OPEN_MAX defined in .


     Each process has a file descriptor table which is guaranteed
     to  have  at  least 20 slots.  The entries in the descriptor
     table are numbered with small integers starting  at  0.  The
     getdtablesize() function returns the current maximum size of
     this table by calling the getrlimit() function.

SEE ALSO
     close(2), getrlimit(2), open(2), setrlimit(2), select(3C)





















SunOS 5.11           Last change: 1 Mar 1996                    1