|
|
Sponsored Content
Top Forums
Programming
open() system call in c++????
Post 302623209 by pflynn on Friday 13th of April 2012 09:43:24 AM
04-13-2012
|
|
9 More Discussions You Might Find Interesting
1. UNIX for Advanced & Expert Users
Hi,
Ho do I differentiate system call from library call?
for example if I am using chmod , how do I find out if it is a system call or library call?
Thanks
Muru (2 Replies)
Discussion started by: muru
2 Replies
2. Programming
How the c compiler differentiates the system calls and function calls? (1 Reply)
Discussion started by: rangaswamy
1 Replies
3. Shell Programming and Scripting
Hi,
How to write a system calls in a script ?
> cd $HOME
> ls -ltr
thanks in advance.. (10 Replies)
Discussion started by: hegdeshashi
10 Replies
4. Programming
Hi
I'm studing the system call. I've written a small program that return the time spent in doing some operations. Now I'd like to write one that return the time spent in user mode of a process.
I'm reading that i should use the tms struct:
clock_t times(struct tms *buf);
struct tms {... (2 Replies)
Discussion started by: Dedalus
2 Replies
5. UNIX for Advanced & Expert Users
When the programmer use 'open' function, the process is like below.
"open -> system call wrapper of open in Glibc -> syscall_open in kernel"
I found the wrapper of open, but there is no implementation like 'int $80'.
int
__open (file, oflag)
const char *file;
int oflag;
{
... (3 Replies)
Discussion started by: yuno96
3 Replies
6. Programming
Dear all,
Inside a C program, I want to open a very big file (about 12 GB) in order to read its
content. Here is the code:
/*
argv contains the path to the file.
*/
inputFileDescriptor = open(argv, O_RDONLY);
if (inputFileDescriptor < 0)
{
... (6 Replies)
Discussion started by: dariyoosh
6 Replies
7. Programming
I have a cgi script which is called after certain time interval, which has this:
system ("ls -l /tmp/cgic* | grep -v \"cgicsave.env\" | awk '{print $5}'");
During the execution of this script,the output is 0 sometimes. But due to this the system call is not working at all and doesnt o/p... (2 Replies)
Discussion started by: xs2punit
2 Replies
8. Programming
hi everyone
i wrote a system call and compiled the kernel succesfully...
my system call is in a file in the kernel folder named my_syscall1.c (kernel/my_syscall1.c)
the header file for this system call i added it in the folder include like this include/my_syscall1/my_syscall1.h
my problem is... (2 Replies)
Discussion started by: demis87
2 Replies
9. Shell Programming and Scripting
Trying to figure out a load issue with a webserver. I have traced a php script and noticed the following
connect(4, {sa_family=AF_INET, sin_port=htons(3306), sin_addr=inet_addr("XX.XX.XX.XX")}, 16) = -1 EINPROGRESS (Operation now in progress) <0.000035>
poll(, 1, 2000) = 1 () <0.000120>... (5 Replies)
Discussion started by: rajan007
5 Replies
LEARN ABOUT CENTOS
iso-read
ISO-READ(1) User Commands ISO-READ(1) NAME
iso-read - reads portions of an ISO 9660 image SYNOPSIS
iso-read [OPTION...] DESCRIPTION
-d, --debug=INT Set debugging to LEVEL. -i, --image=FILE Read from ISO-9660 image. This option is mandatory -e, --extract=FILE Extract FILE from ISO-9660 image. This option is mandatory. -k, --ignore Ignore read error(s), i.e. keep going --no-header Don't display header and copyright (for regression testing) -o, --output-file=FILE Output file. This option is mandatory. -U --udf Contents are in UDF format -V, --version display version and copyright information and exit Help options: -?, --help Show this help message --usage Display brief usage message AUTHOR
Rocky Bernstein <rocky@gnu.org> COPYRIGHT
Copyright (C) 2003-2005, 2007-2008, 2011-2013 R. Bernstein This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICU- LAR PURPOSE. Have driver: GNU/Linux ioctl and MMC driver Have driver: cdrdao (TOC) disk image driver Have driver: bin/cuesheet disk image driver Have driver: Nero NRG disk image driver Default CD-ROM device: /dev/sr0 SEE ALSO
iso-info(1) for information about an ISO-9660 image. cd-read(1) to read portions of an ISO 9660 image. iso-read December 2013 ISO-READ(1)