getdtablesize(3C) Standard C Library Functions getdtablesize(3C)NAME
getdtablesize - get the file descriptor table size
SYNOPSIS
#include <unistd.h>
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 <limits.h>.
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 1 Mar 1996 getdtablesize(3C)
Check Out this Related Man Page
getdtablesize(2) System Calls Manual getdtablesize(2)NAME
getdtablesize() - get the size of the per-process file descriptor table
SYNOPSIS DESCRIPTION
The function returns the maximum number of file descriptors that can currently be stored in a process' file descriptor table. This maximum
number is also known as the soft limit for open files, and can be adjusted up to the hard limit by calling The entries in the descriptor
table are numbered with small integers starting at 0 (zero).
The function returns the total number of file descriptors that a process can have open simultaneously. Each process is limited to a cur-
rent maximum (soft limit) and a fixed upper bound (hard limit) of open file descriptors. This limit is at least 32. The system-defined
limits are configurable. See the descriptions of the and kernel parameters in maxfiles_lim(5) and maxfiles(5), respectively, for informa-
tion about changing the system-defined, per-process limit on open file descriptors.
RETURN VALUES
The function returns the size of the descriptor table (soft limit), and is always successful.
SEE ALSO close(2), getrlimit(2), open(2), select(2), setrlimit(2), sysconf(2), maxfiles(5), maxfiles_lim(5).
STANDARDS CONFORMANCE getdtablesize(2)
i am executiing some commands using system an popen command in c.
while executing the code .
some data is shown on terimal without using any print statement.
how can i solve this problem
thank u
sree (1 Reply)
Hi,
want to port an executable from AIX 5.3 to AIX 5.2.
This seems to be no problem, when i build one executable.
But in another case i have to link one library statically and
the rest is loaded at runtime. This works for AIX 5.3 but
on AIX 5.2 i get the following error
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which signal will flush the file buffer in C/C++?
eg. send a signal to flush all the file buffer to a file/stdout with out invoking fflush().
-INT, -TERM?
someone please help me, thanks in advance!
waiting online... (8 Replies)
Im using gdb and when a user disconnects from my server I receive a message
Program received signal SIGABRT, Aborted.
0x7ffe0304 in ?? ()
I was hoping someone here might have a explination for this message in gdb (26 Replies)
Someone, please help on this issue:-
Note : for security reason i didn't mention hostnames and ips.
==============================================================================
# ntpstat
unsynchronised
polling server every 1024 s
Ntpstat showing unsynchronised.
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