getdtablesize - get descriptor table size
SYNOPSIS
#include <unistd.h>
int getdtablesize(void);
DESCRIPTION
getdtablesize returns the maximum number of files a pro
cess can have open.
NOTES
getdtablesize is implemented as a library function in DLL
4.4.1. This function returns OPEN_MAX (set to 256 in
Linux 2.0.23) if OPEN_MAX was defined when the library was
compiled. Otherwise, -1 is returned, and errno is set to
ENOSYS.
CONFORMING TO
SVr4, 4.4BSD (the getdtablesize function first appeared in
BSD 4.2).
SEE ALSO
close(2), dup(2), open(2)
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