Login or Register to Ask a Question and Join Our Community

Sponsored Content
Full Discussion: File read/ write operation
Operating Systems Linux File read/ write operation Post 302425295 by xs2punit on Thursday 27th of May 2010 02:47:49 PM
Old 05-27-2010
Well the ajax reads the data synchronously ie

Code:
function send_request()
{
request.onreadystatechange = request_handler;   
request.open("GET","progress_bar.txt",true);    //true means that Ajax will get data asynchronously
request.send(null);
}
function request_handler() //function to check if data is available for read
{
if (request.readyState == 4 && request.status == 200)
        {
        document.getElementById("progress").innerHTML= request.responseText + '%';
        document.getElementById("progress").style.width = request.responseText + '%';
        document.getElementById("progress").style.backgroundColor = "green";
         }
}

So, here the send_request() method is called after every 500ms(changeable). It can read the data only when request.readyState = 4 and this gets true only when whole file is written NOT at each data write.

I hope you understood what I mean to say.
Last edited by Scott; 05-27-2010 at 08:15 PM..
 

10 More Discussions You Might Find Interesting

1. IP Networking

how do you get to know if the write operation was succesful.

how do you get to know if the write operation for writing to a socket was succesful was succesful. (3 Replies)
Discussion started by: arjunjag
3 Replies

2. Shell Programming and Scripting

read and write from a file

I have tried to show the file name whose size is greater than 200 byte in current directory. Please help me. ls -l | tr -s " " " " | cut -f 5,9 -d " " >out.txt #set -a x `cat out.txt` i=0 `cat out.txt` | while do read x echo $x #re=200 j=0 if }" < "200" ] then echo $j j=`expr $j... (2 Replies)
Discussion started by: rinku
2 Replies

3. UNIX for Dummies Questions & Answers

Simultaneous file read operation

Hi All, I need information on file handling in UNIX enviornment. If in UNIX enviornment I have two process.. P1 P2 Both accessing the same file simultaneosuly(read operation).. Suppose P1 opened the file in read mode first and started reading the file.. Then P2 opens the same file in... (5 Replies)
Discussion started by: chibob
5 Replies

4. UNIX for Dummies Questions & Answers

Write/read to file descriptors

Is it possible to write to file descriptor 0 and read from 1 or 2? How could this be implemented? (3 Replies)
Discussion started by: machshev
3 Replies

5. Solaris

monitoring multipath IO for read and write operation

Hi Folks, I would like to monitor multipath IO on solaris for write and read operations. Does "sar -d" include multipath IO information along with other block devices ? Thanks, Faizan. (0 Replies)
Discussion started by: sifaizan
0 Replies

6. IP Networking

read/write,write/write lock with smbclient fails

Hi, We have smb client running on two of the linux boxes and smb server on another linux system. During a backup operation which uses smb, read of a file was allowed while write to the same file was going on.Also simultaneous writes to the same file were allowed.Following are the settings in the... (1 Reply)
Discussion started by: swatidas11
1 Replies

7. Shell Programming and Scripting

Transferring file write operation to another host

I have a process running on two hosts in Active/Standby mode. Process running on active machine is handling the traffic while process running on Standby machine is sitting idle. We have a debugging mechanism in which logs are generated on local machine. When logging is enabled then process running... (1 Reply)
Discussion started by: akhilonnet
1 Replies

8. Shell Programming and Scripting

Grab data between 2 keywords any do an array operation and write the file intact

Hi Unix Gurus, I need to grep for a block that is between a start and end keyword and then in between I need to find and replace a keyword. for eg: I need to search between Test = 000; and Test = 000; and find K9 and replace with M9 INPUT FILE Define { Replace = K9; Test =... (6 Replies)
Discussion started by: naveen@
6 Replies

9. Shell Programming and Scripting

File Read and Write

I have got a file in following format: AAAAAAA BBBBBBBB CCCCCCC DDDDDDD I am trying to read this file and out put it in following format: AAAAAAA,BBBBBBB,CCCCCCC,DDDDDD Preferred method is shell or Perl. Any help appreciated. (11 Replies)
Discussion started by: Araoki
11 Replies

10. Shell Programming and Scripting

Read and write in the file

Hello Guys, How all are doing? I have an issue in Unix and want help from all of you I have a file in UNIX which it read by line by line , If at the end of line '0' is written the it should fetch that line into another file and change '0' to '1' and If at the end of line '1' is written then it... (10 Replies)
Discussion started by: adisky123
10 Replies

LEARN ABOUT DEBIAN

ecaccess-file-mput

ECACCESS-FILE-MPUT(1p)					User Contributed Perl Documentation				    ECACCESS-FILE-MPUT(1p)

NAME

       ecaccess-file-mput - Upload Multiple Local Files on the ECaccess File System at once

SYNOPSIS

       ecaccess-file-mput -version|-help|-manual

       ecaccess-file-mput [-debug] [-progress] [-force] [-umask mode] [-bufsize length] source-local-file [...] target-ecaccess-directory

DESCRIPTION

       Allow uploading Multiple Local Files on target-ecaccess-directory at once.

       The target-ecaccess-directory is in the form [domain:][/user-id/]path. Please read the "Shell commands -> File Management" section of the
       "ecaccess" guide for more information on the ECaccess File System.

       Please note this command is not recursive and will only upload plain-files (directories specified as source-ecaccess-file are ignored).

ARGUMENTS

       source-local-file [...]
	       The name(s) of the source File(s).

       target-ecaccess-directory
	       The name of the target ECaccess Directory.

OPTIONS

       -progress
	       Provide a progress meter on the standard terminal, allowing to monitor the file transmission in real-time. The progress bar is
	       removed from the terminal when the transmission is done. This option is not supported and ignored on Windows platforms.

       -force  Overrides the interactive mode and upload each file without prompting.

       -umask mode
	       The user file-creation mode mask (umask) is used to determine the file permission for newly created files. The default value is
	       640.

       -bufsize length
	       Specify the length of the buffer (in bytes) which is used to upload the files.  The larger the buffer the smaller the number of
	       http/s requests. By default a buffer of 10485760 bytes(10MB) is used.

       -version
	       Display version number and exits.

       -help   Print a brief help message and exits.

       -manual Prints the manual page and exits.

       -debug  Display the SOAP messages exchanged.

EXAMPLES

       ecaccess-file-mput $HOME/*.txt home:/xyz/

       Upload the local $HOME/*.txt Files in the ECaccess $HOME directory of the user xyz.

SEE ALSO

       ecaccess-file-delete, ecaccess-file-get, ecaccess-file-mget, ecaccess-file-modtime, ecaccess-file-chmod, ecaccess-file-rmdir, ecaccess-
       file-copy, ecaccess-file-dir, ecaccess-file-mdelete, ecaccess-file-mkdir, ecaccess-file-move, ecaccess-file-put, ecaccess-file-size and
       ecaccess.

perl v5.14.2							    2012-04-16						    ECACCESS-FILE-MPUT(1p)
All times are GMT -4. The time now is 05:49 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy