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  • Why is this unwanted ">" character being displayed when displaying this PHP document in a browser?

    - by CT
    This page takes an asset id from $_GET of the url and displays some info about the asset after querying a mysql database. When I view the page in my browser there is an unwanted "" character within the page and I have no idea why. I've commented where it appears. It appears before the < table create tag right afterward. The < table tag was originally outside the php script section but I threw it in to see if it made a difference. It did not. Thank you all. I am viewing the page in Firefox. The web server is running on an Ubuntu Server 10.04 virtual machine on my laptop. <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <link rel="stylesheet" type="text/css" href="style.css" /> <title>Wagman IT Asset</title> </head> <body> <div id="page"> <div id="header"> <img src="images/logo.png" /> </div> </div> <div id="content"> <div id="container"> <div id="main"> <div id="menu"> <ul> <table width="100%" border="0"> <tr> <td><li><a href="index.php">Search Assets</a></li></td> <td><li><a href="browse.php">Browse Assets</a></li></td> <td><li><a href="add_asset.php">Add Asset</a></li></td> <td>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</td> </tr> </table> </ul> </div> <div id="text"> <ul> <li> <h1>View Asset</h1> </li> </ul> //UNWANTED > CHARACTER APPEARS HERE <?php echo "<table width='100%' border='0' cellpadding='2'>"; //make database connect mysql_connect("localhost", "asset_db", "asset_db") or die(mysql_error()); mysql_select_db("asset_db") or die(mysql_error()); //get asset $id = $_GET["id"]; //get type of asset $sql = "SELECT asset.type From asset WHERE asset.id = $id"; $result = mysql_query($sql) or die(mysql_error()); $row = mysql_fetch_assoc($result); $type = $row['type']; switch ($type){ case "Server": $sql = " SELECT asset.id ,asset.company ,asset.location ,asset.purchase_date ,asset.purchase_order ,asset.value ,asset.type ,asset.notes ,server.manufacturer ,server.model ,server.serial_number ,server.esc ,server.user ,server.prev_user ,server.warranty FROM asset LEFT JOIN server ON server.id = asset.id WHERE asset.id = $id "; $result = mysql_query($sql); while($row = mysql_fetch_assoc($result)) { echo "<tr><td>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</td><td>Asset ID:</td><td>"; $id = $row['id']; setcookie('id', $id); echo "$id</td></tr>"; echo "<tr<td>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</td>><td>Company:</td><td>"; $company = $row['company']; setcookie('company', $company); echo "$company</td></tr>"; echo "<tr><td>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</td><td>Location:</td><td>"; $company = $row['location']; setcookie('location', $location); echo "$location</td></tr>"; echo "<tr><td>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</td><td>Purchase Date:</td><td>"; $purchase_date = $row['purchase_date']; setcookie('purchase_date', $purchase_date); echo "$purchase_date</td></tr>"; echo "<tr><td>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</td><td>Purchase Order:</td><td>"; $purchase_order = $row['purchase_order']; setcookie('purchase_order', $purchase_order); echo "$purchase_order</td></tr>"; echo "<tr><td>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</td><td>Value:</td><td>"; $value = $row['value']; setcookie('value', $value); echo "$value</td></tr>"; echo "<tr><td>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</td><td>Type:</td><td>"; $type = $row['type']; setcookie('type', $type); echo "$type</td></tr>"; echo "<tr><td>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</td><td>Notes:</td><td>"; $notes = $row['notes']; setcookie('notes', $notes); echo "$notes</td></tr>"; echo "<tr><td>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</td><td>Manufacturer:</td><td>"; $manufacturer = $row['manufacturer']; setcookie('manufacturer', $manufacturer); echo "$manufacturer</td></tr>"; echo "<tr><td>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</td><td>Model / Description:</td><td>"; $model = $row['model']; setcookie('model', $model); echo "$model</td></tr>"; echo "<tr><td>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</td><td>Serial Number / Service Tag:</td><td>"; $serial_number = $row['serial_number']; setcookie('serial_number', $serial_number); echo "$serial_number</td></tr>"; echo "<tr><td>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</td><td>Express Service Code:</td><td>"; $escy = $row['esc']; setcookie('esc', $esc); echo "$esc</td></tr>"; echo "<tr><td>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</td><td>User:</td><td>"; $user = $row['user']; setcookie('user', $user); echo "$user</td></tr>"; echo "<tr><td>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</td><td>Previous User:</td><td>"; $prev_user = $row['prev_user']; setcookie('prev_user', $prev_user); echo "$prev_user</td></tr>"; echo "<tr><td>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</td><td>Warranty:</td><td>"; $warranty = $row['warranty']; setcookie('warranty', $warranty); echo "$warranty</td></tr></table>"; } break; case "Laptop": $sql = " SELECT asset.id ,asset.company ,asset.location ,asset.purchase_date ,asset.purchase_order ,asset.value ,asset.type ,asset.notes ,laptop.manufacturer ,laptop.model ,laptop.serial_number ,laptop.esc ,laptop.user ,laptop.prev_user ,laptop.warranty FROM asset LEFT JOIN laptop ON laptop.id = asset.id WHERE asset.id = $id "; $result = mysql_query($sql); while($row = mysql_fetch_assoc($result)) { echo "<tr><td>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</td><td>Asset ID:</td><td>"; $id = $row['id']; setcookie('id', $id); echo "$id</td></tr>"; echo "<tr<td>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</td>><td>Company:</td><td>"; $company = $row['company']; setcookie('company', $company); echo "$company</td></tr>"; echo "<tr><td>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</td><td>Location:</td><td>"; $company = $row['location']; setcookie('location', $location); echo "$location</td></tr>"; echo "<tr><td>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</td><td>Purchase Date:</td><td>"; $purchase_date = $row['purchase_date']; setcookie('purchase_date', $purchase_date); echo "$purchase_date</td></tr>"; echo "<tr><td>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</td><td>Purchase Order:</td><td>"; $purchase_order = $row['purchase_order']; setcookie('purchase_order', $purchase_order); echo "$purchase_order</td></tr>"; echo "<tr><td>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</td><td>Value:</td><td>"; $value = $row['value']; setcookie('value', $value); echo "$value</td></tr>"; echo "<tr><td>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</td><td>Type:</td><td>"; $type = $row['type']; setcookie('type', $type); echo "$type</td></tr>"; echo "<tr><td>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</td><td>Notes:</td><td>"; $notes = $row['notes']; setcookie('notes', $notes); echo "$notes</td></tr>"; echo "<tr><td>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</td><td>Manufacturer:</td><td>"; $manufacturer = $row['manufacturer']; setcookie('manufacturer', $manufacturer); echo "$manufacturer</td></tr>"; echo "<tr><td>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</td><td>Model / Description:</td><td>"; $model = $row['model']; setcookie('model', $model); echo "$model</td></tr>"; echo "<tr><td>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</td><td>Serial Number / Service Tag:</td><td>"; $serial_number = $row['serial_number']; setcookie('serial_number', $serial_number); echo "$serial_number</td></tr>"; echo "<tr><td>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</td><td>Express Service Code:</td><td>"; $escy = $row['esc']; setcookie('esc', $esc); echo "$esc</td></tr>"; echo "<tr><td>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</td><td>User:</td><td>"; $user = $row['user']; setcookie('user', $user); echo "$user</td></tr>"; echo "<tr><td>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</td><td>Previous User:</td><td>"; $prev_user = $row['prev_user']; setcookie('prev_user', $prev_user); echo "$prev_user</td></tr>"; echo "<tr><td>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</td><td>Warranty:</td><td>"; $warranty = $row['warranty']; setcookie('warranty', $warranty); echo "$warranty</td></tr></table>"; } break; case "Desktop": $sql = " SELECT asset.id ,asset.company ,asset.location ,asset.purchase_date ,asset.purchase_order ,asset.value ,asset.type ,asset.notes ,desktop.manufacturer ,desktop.model ,desktop.serial_number ,desktop.esc ,desktop.user ,desktop.prev_user ,desktop.warranty FROM asset LEFT JOIN desktop ON desktop.id = asset.id WHERE asset.id = $id "; $result = mysql_query($sql); while($row = mysql_fetch_assoc($result)) { echo "<tr><td>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</td><td>Asset ID:</td><td>"; $id = $row['id']; setcookie('id', $id); echo "$id</td></tr>"; echo "<tr<td>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</td>><td>Company:</td><td>"; $company = $row['company']; setcookie('company', $company); echo "$company</td></tr>"; echo "<tr><td>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</td><td>Location:</td><td>"; $company = $row['location']; setcookie('location', $location); echo "$location</td></tr>"; echo "<tr><td>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</td><td>Purchase Date:</td><td>"; $purchase_date = $row['purchase_date']; setcookie('purchase_date', $purchase_date); echo "$purchase_date</td></tr>"; echo "<tr><td>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</td><td>Purchase Order:</td><td>"; $purchase_order = $row['purchase_order']; setcookie('purchase_order', $purchase_order); echo "$purchase_order</td></tr>"; echo "<tr><td>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</td><td>Value:</td><td>"; $value = $row['value']; setcookie('value', $value); echo "$value</td></tr>"; echo "<tr><td>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</td><td>Type:</td><td>"; $type = $row['type']; setcookie('type', $type); echo "$type</td></tr>"; echo "<tr><td>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</td><td>Notes:</td><td>"; $notes = $row['notes']; setcookie('notes', $notes); echo "$notes</td></tr>"; echo "<tr><td>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</td><td>Manufacturer:</td><td>"; $manufacturer = $row['manufacturer']; setcookie('manufacturer', $manufacturer); echo "$manufacturer</td></tr>"; echo "<tr><td>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</td><td>Model / Description:</td><td>"; $model = $row['model']; setcookie('model', $model); echo "$model</td></tr>"; echo "<tr><td>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</td><td>Serial Number / Service Tag:</td><td>"; $serial_number = $row['serial_number']; setcookie('serial_number', $serial_number); echo "$serial_number</td></tr>"; echo "<tr><td>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</td><td>Express Service Code:</td><td>"; $escy = $row['esc']; setcookie('esc', $esc); echo "$esc</td></tr>"; echo "<tr><td>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</td><td>User:</td><td>"; $user = $row['user']; setcookie('user', $user); echo "$user</td></tr>"; echo "<tr><td>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</td><td>Previous User:</td><td>"; $prev_user = $row['prev_user']; setcookie('prev_user', $prev_user); echo "$prev_user</td></tr>"; echo "<tr><td>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</td><td>Warranty:</td><td>"; $warranty = $row['warranty']; setcookie('warranty', $warranty); echo "$warranty</td></tr></table>"; } break; } ?> </div> </div> </div> <div class="clear"></div> <div id="footer" align="center"> <p>&nbsp;</p> </div> </div> <div id="tagline"> Wagman Construction - Bridging Generations since 1902 </div> </body> </html>

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  • Where are the static methods in gcc's dump file.c.135r.jump

    - by Customizer
    When I run gcc with the parameter -fdump-rtl-jump, I get a dump file with the name file.c.135r.jump, where I can read some information about the intermediate representation of the methods in my C or C++ file. I just recently discovered, that the static methods of a project are missing in this dump file. Do you know, why they are missing in that representation and if there is a possibility to include the static methods in this file, too. Update (some additional information): The test program, I'm using here, is the Hybrid OpenMP MPI Benchmark. Update2: I just reproduced the problem with a serial application, so it has nothing to do with parallel sections.

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  • Developing for mobile devices and desktop

    - by Augusto
    Hi, I'm starting a new project. It will run on devices running Windows CE, Windows Mobile 6 and will also have a desktop version. The software will connect to some equipments through the serial port, using it's own protocol. Basically it will: connect to the equipment send and receive info read and write binary files These tasks will be shared between desktop and mobile devices. I've been searching the information I need, but I still have some doubts: If I target Windows CE devices it will work with Windows Mobile 6 too? Creating a class library targeting Windows CE will give me any trouble on using it in the desktop version? (when I add a reference to that class library, my VS says that I could experience some unexpected results) Is it possible to install .NET CF 3.5 on devices running Windows CE 4.2? Thanks!

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  • multi column sorting of datagrid view:

    - by Bi
    I have a datagridview in a windows form with 3 columns: Serial number, Name and Date-Time. The Name column will always have either of the two values: "name1" or "name2". I need to sort these columns such that the grid displays all the rows with name values in a specific order (first display all the "name1" rows and then all the "name2" rows). Within the "name1" rows, I want the rows to be sorted by the Date-Time. Please note programmatically, all the 3 columns are strings. For example, if I have the rows: 01 |Name1 | 2010-05-05 10:00 PM 02 |Name2 | 2010-05-02 08:00 AM 03 |Name2 | 2010-05-01 08:00 AM 04 |Name1 | 2010-05-01 11:00 AM 05 |Name1 | 2010-05-04 07:00 AM needs to be sorted as 04 |Name1 | 2010-05-01 11:00 AM 05 |Name1 | 2010-05-04 07:00 AM 01 |Name1 | 2010-05-05 10:00 PM 03 |Name2 | 2010-05-01 08:00 AM 02 |Name2 | 2010-05-02 08:00 AM I am not sure how to go about using the below: myGrid.Sort(.....,ListSortDirection.Ascending)

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  • MCV/MVP Patterns and Applications that interface with Hardware (DAQ/PLC/etc)

    - by Ryan
    I've been reading a lot about the MCV and MVP patterns for use with UI and it seems like a really nice powerful way to handle user interfaces. I am - however - having a difficult time deciding how this could integrate into a system where data in the model is created from a Data Acquisition System or Serial/Ethernet devices. There is also the added step that 70% of application interaction is performed by a PLC instead of a live user. It seems that for apps that just read/write & manipulate information from a database this works great, but how does does hardware and automation fit into these patterns? Is it as simple as another controller (for lack of a better term) that interacts with hardware that manipulates data and writes to a model? Maybe I am over thinking this or thinking too simply, so any advice would be great. I'm not quite sure where I'm going with this, so if something doesn't make sense or I was too vague leave me a comment. Thanks!

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  • Linux C: "Interactive session" with separate read and write named pipes?

    - by ~sd-imi
    Hi all, I am trying to work with "Introduction to Interprocess Communication Using Named Pipes - Full-Duplex Communication Using Named Pipes", http://developers.sun.com/solaris/articles/named_pipes.html#5 ; in particular fd_server.c (included below for reference) Here is my info and compile line: :~$ cat /etc/issue Ubuntu 10.04 LTS \n \l :~$ gcc --version gcc (Ubuntu 4.4.3-4ubuntu5) 4.4.3 :~$ gcc fd_server.c -o fd_server fd_server.c creates two named pipes, one for reading and one for writing. What one can do, is: in one terminal, run the server and read (through cat) its write pipe: :~$ ./fd_server & 2/dev/null [1] 11354 :~$ cat /tmp/np2 and in another, write (using echo) to server's read pipe: :~$ echo "heeellloooo" /tmp/np1 going back to first terminal, one can see: :~$ cat /tmp/np2 HEEELLLOOOO 0[1]+ Exit 13 ./fd_server 2 /dev/null What I would like to do, is make sort of a "interactive" (or "shell"-like) session; that is, the server is run as usual, but instead of running "cat" and "echo", I'd like to use something akin to screen. What I mean by that, is that screen can be called like screen /dev/ttyS0 38400, and then it makes a sort of a interactive session, where what is typed in terminal is passed to /dev/ttyS0, and its response is written to terminal. Now, of course, I cannot use screen, because in my case the program has two separate nodes, and as far as I can tell, screen can refer to only one. How would one go about to achieve this sort of "interactive" session in this context (with two separate read/write pipes)? Thanks, Cheers! Code below: #include <stdio.h> #include <errno.h> #include <ctype.h> #include <sys/types.h> #include <sys/stat.h> #include <fcntl.h> //#include <fullduplex.h> /* For name of the named-pipe */ #define NP1 "/tmp/np1" #define NP2 "/tmp/np2" #define MAX_BUF_SIZE 255 #include <stdlib.h> //exit #include <string.h> //strlen int main(int argc, char *argv[]) { int rdfd, wrfd, ret_val, count, numread; char buf[MAX_BUF_SIZE]; /* Create the first named - pipe */ ret_val = mkfifo(NP1, 0666); if ((ret_val == -1) && (errno != EEXIST)) { perror("Error creating the named pipe"); exit (1); } ret_val = mkfifo(NP2, 0666); if ((ret_val == -1) && (errno != EEXIST)) { perror("Error creating the named pipe"); exit (1); } /* Open the first named pipe for reading */ rdfd = open(NP1, O_RDONLY); /* Open the second named pipe for writing */ wrfd = open(NP2, O_WRONLY); /* Read from the first pipe */ numread = read(rdfd, buf, MAX_BUF_SIZE); buf[numread] = '0'; fprintf(stderr, "Full Duplex Server : Read From the pipe : %sn", buf); /* Convert to the string to upper case */ count = 0; while (count < numread) { buf[count] = toupper(buf[count]); count++; } /* * Write the converted string back to the second * pipe */ write(wrfd, buf, strlen(buf)); } Edit: Right, just to clarify - it seems I found a document discussing something very similar, it is http://en.wikibooks.org/wiki/Serial_Programming/Serial_Linux#Configuration_with_stty - a modification of the script there ("For example, the following script configures the device and starts a background process for copying all received data from the serial device to standard output...") for the above program is below: # stty raw # ( ./fd_server 2>/dev/null; )& bgPidS=$! ( cat < /tmp/np2 ; )& bgPid=$! # Read commands from user, send them to device echo $(kill -0 $bgPidS 2>/dev/null ; echo $?) while [ "$(kill -0 $bgPidS 2>/dev/null ; echo $?)" -eq "0" ] && read cmd; do # redirect debug msgs to stderr, as here we're redirected to /tmp/np1 echo "$? - $bgPidS - $bgPid" >&2 echo "$cmd" echo -e "\nproc: $(kill -0 $bgPidS 2>/dev/null ; echo $?)" >&2 done >/tmp/np1 echo OUT # Terminate background read process - if they still exist if [ "$(kill -0 $bgPid 2>/dev/null ; echo $?)" -eq "0" ] ; then kill $bgPid fi if [ "$(kill -0 $bgPidS 2>/dev/null ; echo $?)" -eq "0" ] ; then kill $bgPidS fi # stty cooked So, saving the script as say starter.sh and calling it, results with the following session: $ ./starter.sh 0 i'm typing here and pressing [enter] at end 0 - 13496 - 13497 I'M TYPING HERE AND PRESSING [ENTER] AT END 0~?.N=?(?~? ?????}????@??????~? [garble] proc: 0 OUT which is what I'd call for "interactive session" (ignoring the debug statements) - server waits for me to enter a command; it gives its output after it receives a command (and as in this case it exits after first command, so does the starter script as well). Except that, I'd like to not have buffered input, but sent character by character (meaning the above session should exit after first key press, and print out a single letter only - which is what I expected stty raw would help with, but it doesn't: it just kills reaction to both Enter and Ctrl-C :) ) I was just wandering if there already is an existing command (akin to screen in respect to serial devices, I guess) that would accept two such named pipes as arguments, and establish a "terminal" or "shell" like session through them; or would I have to use scripts as above and/or program own 'client' that will behave as a terminal..

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  • Looking for some Feedback on a DB Design

    - by zSysop
    I'm currently working on a ticketing system which allows our users to submit tickets based on their own needs. i.e. if Department "A" is submitting a ticket they can have certain types of problem categories (such as "Supplies" or "Printer") along with details pertaining to the chosen category. I have laid out a partial db design and i was looking for some feedback on it. I've never built a system from the ground up by myself so i'm a little bit nervous. here's my a draft version of my db design Issues Table Id | CreatedBy | CreateDate | Status | Owner | AssignedTo | AssignmentDate | ----------------------------------------------------------------------------- EquipmentIssueDetails Table Id | IssueId | Serial # | Make | Model | .... --------------------------------------------- SupplyIssueDetails Table Id | IssueId | SupplyId | ItemId | QTY | UnitOfMeasurement ------------------------------------------------------------- NetworkIssueDetails Table Id | IssueId | Supervisor | Details | ------------------------------------------------------------- Notes Table Id | IssueId | Note | CreatedBy | CreateDate ------------------------------------------------------------- Thanks in advance

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  • IO redirect engine with metadata

    - by hawk.hsieh
    Is there any C library or tool to redirect IO and be able to configured by a metadata. And provide a dynamic link library to perform custom process for feeding data into next IO. For example, network video recorder: record video: socket do_something() file preview video: socket do_something() PCI device http service: download file: socket do_something(http) file socket post file: socket do_something(http) file serial control: monitor device: uart do_something(custom protocol) popen("zip") socket I know the unix-like OS has IO redirect feature and integrate all application you want. Even socket IO you can use /dev/tcp or implement a process to redirect to stdout. But this is process based , the process's foot print is big , IPC is heavy. Therefore, I am looking for something to redirect IO in a process and the data redirect between IO is configurable with a metadata (XML,jason or others).

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  • C#:multicolumn sorting of datagrid view

    - by Bi
    I have a datagridview in a windows form with 3 columns: Serial number, Name and Date-Time. The Name column will always have either of the two values: "name1" or "name2". I need to sort these columns such that the grid displays all the rows with name values in a specific order (first display all the "name1" rows and then all the "name2" rows). Within the "name1" rows, I want the rows to be sorted by the Date-Time. Please note programmatically, all the 3 columns are strings. For example, if I have the rows: 01 |Name1 | 2010-05-05 10:00 PM 02 |Name2 | 2010-05-02 08:00 AM 03 |Name2 | 2010-05-01 08:00 AM 04 |Name1 | 2010-05-01 11:00 AM 05 |Name1 | 2010-05-04 07:00 AM needs to be sorted as 04 |Name1 | 2010-05-01 11:00 AM 05 |Name1 | 2010-05-04 07:00 AM 01 |Name1 | 2010-05-05 10:00 PM 03 |Name2 | 2010-05-01 08:00 AM 02 |Name2 | 2010-05-02 08:00 AM I am not sure how to go about using the below: myGrid.Sort(.....,ListSortDirection.Ascending)

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  • Where is the bottleneck in this code?

    - by Mikhail
    I have the following tight loop that makes up the serial bottle neck of my code. Ideally I would parallelize the function that calls this but that is not possible. //n is about 60 for (int k = 0;k < n;k++) { double fone = z[k*n+i+1]; double fzer = z[k*n+i]; z[k*n+i+1]= s*fzer+c*fone; z[k*n+i] = c*fzer-s*fone; } Are there any optimizations that can be made such as vectorization or some evil inline that can help this code? I am looking into finding eigen solutions of tridiagonal matrices. http://www.cimat.mx/~posada/OptDoglegGraph/DocLogisticDogleg/projects/adjustedrecipes/tqli.cpp.html

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  • How do I find the IP address of a GPRS modem?

    - by Hanno Fietz
    I want to pull data from a device that is accessed via a serial protocol and has a GPRS modem attached which should allow transparent access over an IP connection. It seems to me that this approach is upside down, because how should I know at which IP address the device currently is? Unfortunately, the device itself is rather dumb, so I can't make it send something to my server, which would reveal the current IP. For home routers on dialup lines, there's dynamic DNS services. Is there something equivalent in the mobile world? Each modem would, of course, have its phone number as a reliable address, but how does that help me? Practically all material on GPRS etc. that I can find online seems to be concerned with initiating the connection from the modem side, since that's what the system is designed for.

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  • Depmod - unresolved symbols in rt73 module

    - by Xolstice
    I'm trying to install a linux driver for my wireless network card (D-Link DWL-G510) on my Red Hat Linux 7.1 machine with a 2.4.37.9 kernel. I downloaded the serial monkey driver from the sourceforge site and was able to successfully compile the module. However, whenever I do a "make install", the make script executes a "depmod -a" command which then complains with the message: "Unresolved symbols in /lib/modules/2.4.37.9/extra/rt73.o". I then executed a "depmod -e" command to show unresolved symbols and it indicates the following information: request_firmware_Rsmp_38ce5074 release_firmware_Rsmp_33934162 I did a grep on the above information and it showed no source files making reference to it. I searched for it on google and it returned no results. Can anyone help?

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  • Handling multiple async HTTP requests in Silverlight serially

    - by Jeb
    Due to the async nature of http access via WebClient or HttpWebRequest in Silverlight 4, when I want to do multiple http get/posts serially, I find myself writing code that looks like this: doFirstGet(someParams, () => { doSecondGet(someParams, () => { doThirdGet(... } }); Or something similar. I'll end up nesting subsequent calls within callbacks usually implemented using lambdas of some sort. Even if I break things out into Actions or separate methods, it still ends up being hard to read. Does anyone have a clean solution to executing multiple http requests in SL 4 serially? I don't need things to be synchronous, I just want serial execution.

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  • using PIVOT to sql server.

    - by NoviceToDotNet
    This is the abstract idea which i want to do by my first select of first line, i am presenting here, but i am unable to do that correct. here category[0], category[2]..etc representing the category columns values...i know this kind of syntax not work, but i want to do something like this. SELECT category[0], category[1], category[2], category[3], category[4], category[5] FROM( select Row_number() OVER(ORDER BY (SELECT 1)) AS 'Serial Number', EP.FirstName,Ep.LastName, Ep.SignUpID, [dbo].[GetBookingRoleName](ES.UserId,EP.BookingRole) as RoleName, (select top 1 convert(varchar(10),eventDate,103)from [3rdi_EventDates] where EventId=@ItemId) as EventDate, (CASE [dbo].[GetBookingRoleName](ES.UserId,EP.BookingRole) WHEN 'Employee - Marketing' THEN 'DC' WHEN 'Employee - Accounting' THEN 'DC' WHEN 'Coaches' THEN 'DC' WHEN 'Student Client' THEN 'ST' WHEN 'Guest Doctor' THEN 'GDC' ---....more categories here, i just removed a few END) as Category from [3rdi_EventParticipants] as EP inner join [3rdi_EventSignup] as ES on EP.SignUpId = ES.SignUpId WHERE EP.EventId = @ItemId AND EP.PlaceStatus IN (0,3,4,8) and userid in( select distinct userid from userroles where roleid not in(19,20,21,22) and roleid not in(1,2, 25, 44)) (My Below Query) PIVOT(sum(First_Name+Last_Name)) FOR Category (category[0], category[1], category[2], category[3], category[4], category[5]) Group by (SignUpID)

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  • C#: multicolumn sorting of DataGridView

    - by Bi
    I have a DataGridView in a windows form with 3 columns: Serial number, Name, and Date-Time. The Name column will always have either of the two values: "name1" or "name2". I need to sort these columns such that the grid displays all the rows with name values in a specific order (first display all the "name1" rows and then all the "name2" rows). Within the "name1" rows, I want the rows to be sorted by the Date-Time. Please note programmatically, all the 3 columns are strings. For example, if I have the rows: 01 |Name1 | 2010-05-05 10:00 PM 02 |Name2 | 2010-05-02 08:00 AM 03 |Name2 | 2010-05-01 08:00 AM 04 |Name1 | 2010-05-01 11:00 AM 05 |Name1 | 2010-05-04 07:00 AM needs to be sorted as 04 |Name1 | 2010-05-01 11:00 AM 05 |Name1 | 2010-05-04 07:00 AM 01 |Name1 | 2010-05-05 10:00 PM 03 |Name2 | 2010-05-01 08:00 AM 02 |Name2 | 2010-05-02 08:00 AM I am not sure how to go about using the below: myGrid.Sort(.....,ListSortDirection.Ascending)

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  • Porting C++-code from Windows to Unix: systemcalls colliding with name of functions

    - by marvin2k
    Hi I'm porting some crufty C++ Windows-code to Linux, which uses functions called "open" and "close" inside every class... Very bad style, or? Luckily that wasn't a problem in windows, since their systemcalls are named different. When I try to call the systemcalls open() or close() I'm getting some compiler error about "no matching function for call for class:open()". I can't rename all our functions named "class::open" and "class::close" in the whole code, and I have to use open() and close() since I'm working with serial ports. So my question is: How can I tell the compiler, which open I mean? How can I escape or hide the namespace of a class in C++?

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  • Is there a way to highlight specific words or numbers without inserting a span tag?

    - by Taylor
    I've got blocks of text with various specs in them and want to have jquery highlight whatever matches a specific pattern without inserting any extra html. The following is the kind of text that I've got to work with. Intel® Core™ i7 Processor 920 (2.66GHz, 8MB cache, 4.8GT/sec)/ Genuine Windows® 7 Home Premium 64bit- English/ 640 GB Serial ATA non Raid (7200 Rpm)/ 6GB 1333MHz (3x2GB) Tri Channel Memory/ Display Not Included/ 16X DVD+/- RW Optical Drive (DVD & CD read and write)/ 1.8GB NVIDIA® GeForce™ GTX260 graphics card/ Integrated HDA 7.1 Dolby Digital Audio What I'm hoping jquery can do is highlight some of the basic specs without inserting any extra html. Maybe working off a list of values matching the spec format using some wildcards where neededed? The css to select the correct tag is #list div div div+p or I could just give the p class but would rather not. Is this kind of thing possible?

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  • Gtting X-windows error while runing gtk application.

    - by PP
    I have written one gtk application but i am getting following X Windows error while running it: The program 'TestApp' received an X Window System error. This probably reflects a bug in the program. The error was 'BadMatch (invalid parameter attributes)'. (Details: serial 222 error_code 8 request_code 2 minor_code 0) (Note to programmers: normally, X errors are reported asynchronously; that is, you will receive the error a while after causing it. To debug your program, run it with the --sync command line option to change this behavior. You can then get a meaningful backtrace from your debugger if you break on the gdk_x_error() function.) What might be the cause of this error? I have written this app in GTK+ and C. Thank, PP.

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  • How to debug this?

    - by LeonixSolutions
    I have an application which takes measurements every second (I am running it in demo mode & generating random data, so the problem is not to do with reading from devices attached to the serial port). After 5 or 6 minutes it hangs. I have added try // entire body of procedure/function goes here except on E: Exception do begin MessageDlg('Internal coding error in <function name>()', mtError, [mbOK], 0); end; end; to every single function (and Application.Run() in the project file), but I don't see any message dialogs. Any idea how I can test this?

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  • What is the best way to keep database data encrypted with user passwords?

    - by Dan Sosedoff
    Let's say an application has really specific data which belongs to a user, and nobody is supposed to see it except the owner. I use MySQL database with DataMapper ORM mapper. The application is written in Ruby on Sinatra. Application behavior: User signs up for an account. Creates username and password. Logs into his dashboard. Some fields in specific tables must be protected. Basically, I'm looking for auto-encryption for a model properties. Something like this: class Transaction include DataMapper::Resource property :id, Serial property :value, String, :length => 1024, :encrypted => true ... etc ... belongs_to :user end I assume that encryption/decryption on the fly will cause performance problems, but that's ok. At least if that works - I'm fine. Any ideas how to do this?

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  • Oracle: TABLE ACCESS FULL with Primary key?

    - by tim
    There is a table: CREATE TABLE temp ( IDR decimal(9) NOT NULL, IDS decimal(9) NOT NULL, DT date NOT NULL, VAL decimal(10) NOT NULL, AFFID decimal(9), CONSTRAINT PKtemp PRIMARY KEY (IDR,IDS,DT) ) ; SQL>explain plan for select * from temp; Explained. SQL> select plan_table_output from table(dbms_xplan.display('plan_table',null,'serial')); PLAN_TABLE_OUTPUT -------------------------------------------------------------------------------- --------------------------------------------------------------- | Id | Operation | Name | Rows | Bytes | Cost (%CPU)| --------------------------------------------------------------- | 0 | SELECT STATEMENT | | 1 | 61 | 2 (0)| | 1 | TABLE ACCESS FULL| TEMP | 1 | 61 | 2 (0)| --------------------------------------------------------------- Note ----- - 'PLAN_TABLE' is old version 11 rows selected. SQL server 2008 shows in the same situation Clustered index scan. What is the reason?

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  • External USB devices to Android phones?

    - by Doughy
    I would like to use Android phones as a way to do some processing and visualization of a sensor that would be attached to the USB port on the phone. The sensor would plug into the micro/mini USB, and then I would need to read the incoming data from the USB serial port. Is this possible? I have heard of people using Android to steer robots and other applications, but I have never seen Android being used as a host for a USB sensor. I can't seem to find any official documentation on the subject either, but it seems like it would be a very useful tool. Any thoughts, links, or information on this matter? Thanks.

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  • Can you use MongoDB map/reduce to migrate data?

    - by Brian Armstrong
    I have a large collection where I want to modify all the documents by populating a field. A simple example might be caching the comment count on each post: class Post field :comment_count, type: Integer has_many :comments end class Comment belongs_to :post end I can run it in serial with something like: Post.all.each do |p| p.udpate_attribute :comment_count, p.comments.count end But it's taking 24 hours to run (large collection). I was wondering if mongo's map/reduce could be used for this? But I haven't seen a great example yet. I imagine you would map off the comments collection and then store the reduced results in the posts collection. Am I on the right track?

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  • Draw camera position in specific view port.

    - by snackbar
    Most of this code should be fairly self explanatory. I got an display function and my view port function. There are two modes which is 4 small view ports in the window or one large. I got one camera which can be moved and if in 4 view port mode just 3 fixed angles. The thing is I want the free moving cameras position to be displayed in the 3 other view ports. I tried doing it by drawing spheres using opengl but the problem is that then the position gets draw in the free roaming camera too as it shows the same scene. It doesn't have to be a sphere, just something simple that represents the cameras spacial position in these three other views. Drawing the scene once with camera object showing for the three viewports, render to texture. Clear and draw scene without camera object render to texture and then stitch these together before actually drawing the scene seems like a lot o work for something that should be easy. void display(int what) { if(what==5){ glMatrixMode(GL_MODELVIEW); glLoadIdentity(); camControll();} if(what==1){ glMatrixMode(GL_MODELVIEW); glLoadIdentity(); gluLookAt(75,15,-5,0,5,-5,0,1,0);} if(what==2){ glMatrixMode(GL_MODELVIEW); glLoadIdentity(); gluLookAt(0,110,0,0,0,0,1,0,0);} if(what==3){ glMatrixMode(GL_PROJECTION); glLoadIdentity(); gluPerspective(45.0f, float(320) / float(240), 0.1f, 100.0f); glMatrixMode(GL_MODELVIEW); glLoadIdentity(); camControll();} if(what==4){ glMatrixMode(GL_MODELVIEW); glLoadIdentity(); gluLookAt(185,75,25,0,28,0,0,1,0);} glClearColor(0, 0, 0, 1); glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT); drawScene(); drawCamera(); glutSwapBuffers(); } void viewport(){ glEnable(GL_SCISSOR_TEST); if(!divided_view_port) { glViewport(0, 0, w, h); glScissor(0,0,640,480); glMatrixMode(GL_PROJECTION); glLoadIdentity(); gluPerspective(45.0f, w / h, 0.1f, 100.0f); display(5); } else { ////////////////////// bottom left - working glViewport(0, 0, w/2, h/2); glScissor(0,0,w/2,h/2); glMatrixMode(GL_PROJECTION); glLoadIdentity(); gluPerspective(45.0f, w / h, 0.1f, 300.0f); display(1); ////////////////////// ////////////////////// top right - working glViewport(w/2, h/2, w/2, h/2); glScissor(w/2,h/2,w/2,h/2); glMatrixMode(GL_PROJECTION); glLoadIdentity(); gluPerspective(45.0f, w / h, 0.1f, 300.0f); display(2); ////////////////////// ////////////////////// bottom right -working glViewport(w/2, 0, w/2, h/2); glScissor(w/2,0,w/2,h/2); glMatrixMode(GL_PROJECTION); glLoadIdentity(); gluPerspective(45.0f, w / h, 0.1f, 300.0f); display(3); //////////////////////// ////////////////////////// top left glViewport(0, h/2, w/2, h/2); glScissor(0,h/2,w/2,h/2); glMatrixMode(GL_PROJECTION); glLoadIdentity(); gluPerspective(45.0f, w / h, 0.1f, 300.0f); display(4); /////////////////////////// } glDisable(GL_SCISSOR_TEST); glMatrixMode(GL_MODELVIEW); }

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  • Strange DataMapper (0.10.2) error. Please help!

    - by Joel M.
    See the full error here: http://notesapp.heroku.com/ I'm using DataMapper and dm-validations 0.10.2. No matter how much I tweak my models, I get the same error, or another one. Here's how my model looks like: class User include DataMapper::Resource attr_accessor :password, :password_confirmation property :id, Serial, :required => true property :email, String, :required => true, :format => :email_address, :unique => true property :hashed_password, String property :salt, String, :required => true property :created_at, DateTime, :default => Time.now property :permission_level, Integer, :default => 1 validates_present :password_confirmation, :unless => Proc.new { |t| t.hashed_password } validates_present :password, :unless => Proc.new { |t| t.hashed_password } validates_is_confirmed :password

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