System Requirements:
- Minimum memory: 4MB
- Minimum Diskspace: ~20MB
./configure CFLAGS='-arch x86_64' APXSLDFLAGS='-arch x86_64' --with-apxs=/usr/sbin/apxsThen you must pass the these additional flags to the apxs command in order to generate a Universal Binary shared module.
-Wl,-dynamic -Wl,'-arch ppc' -Wl,'-arch ppc64' -Wl,'-arch i386' -Wl,'-arch x86_64' -Wc,-dynamic -Wc,'-arch ppc' -Wc,'-arch ppc64' -Wc,'-arch i386' -Wc,'-arch x86_64'If you then do a file command on the shared module it should return;
$ file mod_recital.so mod_recital2.2.so: Mach-O universal binary with 4 architectures mod_recital2.2.so (for architecture ppc7400): Mach-O bundle ppc mod_recital2.2.so (for architecture ppc64): Mach-O 64-bit bundle ppc64 mod_recital2.2.so (for architecture i386): Mach-O bundle i386 mod_recital2.2.so (for architecture x86_64): Mach-O 64-bit bundle x86_64The apache module files are stored in the /usr/libexec/apache2/ directory on a default apache install on the Mac and the configuration file is /private/etc/apache2/httpd.conf
If you are running your Redhat/Centos or Fedora machine in an enterprise environment you may be sitting behind a network proxy server like squid.
If you try and update or install software it will fail with timeouts or errors contacting the repository mirrors.
To configure YUM to work with your proxy server you need to add the following line to your /etc/yum.conf file.
Anonymous proxy configuration:
proxy=http://yourproxyip:port/
If your proxy server requires authentication add the following lines to your /etc/yum.conf file instead.
proxy=http://yourproxyip:port/ proxy_username=youruser proxy_password=yourpassword
You will be able to update and install software now, give it a go!
If you have 4 GB or more RAM use the Linux kernel compiled for PAE capable machines. Your machine may not show up total 4GB ram. All you have to do is install PAE kernel package.
This package includes a version of the Linux kernel with support for up to 64GB of high memory. It requires a CPU with Physical Address Extensions (PAE).
The non-PAE kernel can only address up to 4GB of memory. Install the kernel-PAE package if your machine has more than 4GB of memory (>=4GB).
# yum install kernel-PAE
If you want to know how much memory centos is using type this in a terminal:
# cat /proc/meminfo
- Warnings
- Headers
- Icon set 1
- Icon set 2
- Icon set 3
- Tooltips
- Highlights
- Code
- Unordered lists
- Ordered lists
- Abbrs and acronyms
- Definition lists
- Legends
- Dropcaps
- Floated blocks
- Other span blocks
- Blockquotes
- Tables
Warnings
This is a sample info message. Use <p class="gkInfo1">Your info message goes here!</p>.
This is a sample tips message. Use <p class="gkTips1">Your tips goes here!</p>.
This is a sample warning message. Use <p class="gkWarning1">Your warning message goes here!</p>.
This is a sample info message. Use <p class="gkInfo2">Your info message goes here!</p>.
This is a sample tips message. Use <p class="gkTips2">Your tips goes here!</p>.
This is a sample warning message. Use <p class="gkWarning2">Your warning message goes here!</p>.
This is a sample info message. Use <p class="gkInfo3">Your info message goes here!</p>.
This is a sample tips message. Use <p class="gkTips3">Your tips goes here!</p>.
This is a sample warning message. Use <p class="gkWarning3">Your warning message goes here!</p>.
This is a sample info message. Use <p class="gkInfo4">Your info message goes here!</p>.
This is a sample tips message. Use <p class="gkTips4">Your tips goes here!</p>.
This is a sample warning message. Use <p class="gkWarning4">Your warning message goes here!</p>.
This is a sample info message. Use <p class="gkInfo5">Your info message goes here!</p>.
This is a sample tips message. Use <p class="gkTips5">Your tips goes here!</p>.
This is a sample warning message. Use <p class="gkWarning5">Your warning message goes here!</p>.
Headers
This is heading 1
Lorem ipsum dolor sit amet, consectetur adipiscing elit. Integer semper egestas nunc in volutpat. Fusce adipiscing velit ac eros tempor iaculis. Phasellus venenatis mollis augue, non posuere odio placerat in. Etiam volutpat ultrices lectus. Fusce eu felis erat. Donec congue interdum elit, sed ornare magna convallis lacinia. In hac habitasse platea dictumst. Mauris volutpat consectetur accumsan.
This is heading 2
Cras diam justo, sodales quis lobortis sed, lobortis vel mauris. Sed a mollis nunc. Quisque semper condimentum lectus, eget laoreet ipsum auctor et. Quisque sagittis luctus augue, id fringilla enim euismod quis. Nullam blandit, elit at euismod rutrum, tortor nibh posuere mauris, in volutpat diam ante ac dui. Sed velit massa, imperdiet placerat tristique et, consectetur a lorem. Praesent aliquet turpis in quam tempor eu pulvinar nibh luctus.
This is heading 3
Vivamus rhoncus arcu sit amet est tristique convallis nec vel eros. Vestibulum euismod luctus velit quis porta. Aliquam varius placerat mauris sed vehicula. Integer porta facilisis sapien, in tempus lorem mattis molestie. Suspendisse potenti. Praesent quis diam non dolor convallis mattis eu id nulla.
This is heading 4
Proin urna erat, egestas vel consectetur at, accumsan at purus. Donec est risus, facilisis dignissim placerat nec, euismod lacinia nisi. Nam ac sem sed quam sollicitudin condimentum et eu neque. Nunc enim urna, ultricies ac mollis pretium, imperdiet hendrerit massa. Sed eleifend felis sed tellus cursus lacinia. Aenean venenatis aliquet euismod. Nam quis turpis tellus, vitae malesuada neque.
This is a headline.
This is a subheadline.
Use <p class="gkHeadling">for headline</p>.Use <p class="gkSubHeadline">for subheadline</p>.Proin urna erat, egestas vel consectetur at, accumsan at purus. Donec est risus, facilisis dignissim placerat nec, euismod lacinia nisi. Nam ac sem sed quam sollicitudin condimentum et eu neque. Nunc enim urna, ultricies ac mollis pretium, imperdiet hendrerit massa. Sed eleifend felis sed tellus cursus lacinia. Aenean venenatis aliquet euismod. Nam quis turpis tellus, vitae malesuada neque.
This is a small headline
This is a large headline
Use <p class="gkHeadling">for headline</p>.Use <p class="gkSubHeadline">for subheadline</p>.Proin urna erat, egestas vel consectetur at, accumsan at purus. Donec est risus, facilisis dignissim placerat nec, euismod lacinia nisi. Nam ac sem sed quam sollicitudin condimentum et eu neque. Nunc enim urna, ultricies ac mollis pretium, imperdiet hendrerit massa. Sed eleifend felis sed tellus cursus lacinia. Aenean venenatis aliquet euismod. Nam quis turpis tellus, vitae malesuada neque.
Icon set 1
This is a sample audio message. Use <p class="gkAudio">Your audio message goes here!</p>.
This is a sample webcam message. Use <p class="gkWebcam">Your webcam goes here!</p>.
This is a sample email message. Use <p class="gkEmail">Your email message goes here!</p>.
This is a sample creditcard message. Use <p class="gkCreditcard">Your creditcart message goes here!</p>.
This is a sample feed message. Use <p class="gkFeed">Your feed goes here!</p>.
This is a sample help message. Use <p class="gkHelp">Your help message goes here!</p>.
This is a sample images message. Use <p class="gkImages">Your images message goes here!</p>.
This is a sample lock message. Use <p class="gkLock">Your webcam goes here!</p>.
This is a sample printer message. Use <p class="gkPrinter">Your printer message goes here!</p>.
This is a sample report message. Use <p class="gkReport">Your report message goes here!</p>.
This is a sample script message. Use <p class="gkScript">Your script goes here!</p>.
This is a sample time message. Use <p class="gkTime">Your time message goes here!</p>.
This is a sample user message. Use <p class="gkUser">Your user message goes here!</p>.
This is a sample world message. Use <p class="gkWorld">Your world goes here!</p>.
This is a sample cart message. Use <p class="gkCart">Your cart message goes here!</p>.
This is a sample cd message. Use <p class="gkCd">Your cd message goes here!</p>.
This is a sample chart_bar message. Use <p class="gkChartBar">Your chart_bar goes here!</p>.
This is a sample chart_line message. Use <p class="gkChartLine">Your chart_line message goes here!</p>.
This is a sample chart_pie message. Use <p class="gkChartPie">Your chart_pie message goes here!</p>.
This is a sample clock message. Use <p class="gkClock">Your clock goes here!</p>.
This is a sample cog message. Use <p class="gkCog">Your cog message goes here!</p>.
This is a sample coins message. Use <p class="gkCoins">Your coins message goes here!</p>.
This is a sample compress message. Use <p class="gkCompress">Your compress goes here!</p>.
This is a sample computer message. Use <p class="gkComputer">Your computer message goes here!</p>.
This is a sample cross message. Use <p class="gkCross">Your cross message goes here!</p>.
This is a sample disk message. Use <p class="gkDisk">Your disk goes here!</p>.
This is a sample error message. Use <p class="gkError">Your error message goes here!</p>.
This is a sample exclamation message. Use <p class="gkExclamation">Your exclamation message goes here!</p>.
This is a sample film message. Use <p class="gkFilm">Your film goes here!</p>.
This is a sample folder message. Use <p class="gkFolder">Your folder message goes here!</p>.
This is a sample group message. Use <p class="gkGroup">Your group message goes here!</p>.
This is a sample heart message. Use <p class="gkHeart">Your heart goes here!</p>.
This is a sample house message. Use <p class="gkHouse">Your house message goes here!</p>.
This is a sample image message. Use <p class="gkImage">Your image message goes here!</p>.
This is a sample information message. Use <p class="gkInformation">Your information message goes here!</p>.
This is a sample magnifier message. Use <p class="gkMagnifier">Your magnifier message goes here!</p>.
This is a sample money message. Use <p class="gkMoney">Your money goes here!</p>.
This is a sample new message. Use <p class="gkNew">Your new message goes here!</p>.
This is a sample note message. Use <p class="gkNote">Your note message goes here!</p>.
This is a sample page message. Use <p class="gkPage">Your page goes here!</p>.
This is a sample page_white message. Use <p class="gkPage_white">Your page_white message goes here!</p>.
This is a sample plugin message. Use <p class="gkPlugin">Your plugin message goes here!</p>.
This is a sample accept message. Use <p class="gkAccept">Your accept goes here!</p>.
This is a sample add message. Use <p class="gkAdd">Your add message goes here!</p>.
This is a sample camera message. Use <p class="gkCamera">Your camera message goes here!</p>.
This is a sample brick message. Use <p class="gkBrick">Your brick goes here!</p>.
This is a sample box message. Use <p class="gkBox">Your box message goes here!</p>.
This is a sample calendar message. Use <p class="gkCalendar">Your calendar message goes here!</p>.
Icon set 2
This is a sample audio message. Use <p class="gkAudioIs2">Your audio message goes here!</p>.
This is a sample email message. Use <p class="gkEmailIs2">Your email message goes here!</p>.
This is a sample feed message. Use <p class="gkFeedIs2">Your feed message goes here!</p>.
This is a sample images message. Use <p class="gkImagesIs2">Your images message goes here!</p>.
This is a sample lock message. Use <p class="gkLockIs2">Your lock message goes here!</p>.
This is a sample printer message. Use <p class="gkPrinterIs2">Your printer message goes here!</p>.
This is a sample time message. Use <p class="gkTimeIs2">Your time message goes here!</p>.
This is a sample user message. Use <p class="gkUserIs2">Your calendar message goes here!</p>.
This is a sample world message. Use <p class="gkWorldIs2">Your world message goes here!</p>.
YThis is a sample cart message. Use <p class="gkCartIs2">Your cart message goes here!</p>.
This is a sample cd message. Use <p class="gkCdIs2">Your cd message goes here!</p>.
This is a sample chart line message. Use <p class="gkChartLineIs2">Your chart line message goes here!</p>.
This is a sample chart pie message. Use <p class="gkChartPieIs2">Your calendar message goes here!</p>.
This is a sample clock message. Use <p class="gkClockIs2">Your clock message goes here!</p>.
This is a sample config message. Use <p class="gkCogIs2">Your config message goes here!</p>.
This is a sample computer message. Use <p class="gkComputerIs2">Your computer message goes here!</p>.
This is a sample error message. Use <p class="gkErrorIs2">Your error message goes here!</p>.
This is a sample exclamation message. Use <p class="gkExclamationIs2">Your exclamation message goes here!</p>.
This is a sample movie message. Use <p class="gkFilmIs2">Your movie message goes here!</p>.
This is a sample folder message. Use <p class="gkFolderIs2">Your folder message goes here!</p>.
This is a group calendar message. Use <p class="gkGroupIs2">Your group message goes here!</p>.
This is a sample house message. Use <p class="gkHouseIs2">Your house message goes here!</p>.
This is a sample image message. Use <p class="gkImageIs2">Your image message goes here!</p>.
This is a sample information message. Use <p class="gkInfromationIs2">Your information message goes here!</p>.
This is a sample magnifier message. Use <p class="gkMagnifierIs2">Your magnifier message goes here!</p>.
This is a sample money message. Use <p class="gkMoneyIs2">Your money message goes here!</p>.
This is a sample page message. Use <p class="gkPageIs2">Your page message goes here!</p>.
This is a sample camera message. Use <p class="gkCameraIs2">Your camera message goes here!</p>.
This is a calendar feed message. Use <p class="gkCalendarIs2">Your calendar message goes here!</p>.
This is a sample contact message. Use <p class="gkContactIs2">Your contact message goes here!</p>.
This is a sample facebook message. Use <p class="gkFacebookIs2">Your facebook message goes here!</p>.
This is a sample like it message. Use <p class="gkLikeItIs2">Your like it message goes here!</p>.
This is a sample twitter message. Use <p class="gkTwitterIs2">Your twitter message goes here!</p>.
This is a sample video message. Use <p class="gkVideoIs2">Your video message goes here!</p>.
This is a sample youtube message. Use <p class="gkYoutubeIs2">Your youtube message goes here!</p>.
Icon set 3
This is a sample audio message. Use <p class="gkAudioIs3">Your audio message goes here!</p>.
This is a sample camera message. Use <p class="gkCameraIs3">Your camera message goes here!</p>.
This is a sample lock message. Use <p class="gkLockIs3">Your lock message goes here!</p>.
This is a sample user message. Use <p class="gkUserIs3">Your user message goes here!</p>.
This is a sample cart message. Use <p class="gkCartIs3">Your cart message goes here!</p>.
This is a sample chart bar message. Use <p class="gkChartBarIs3">Your chart bar message goes here!</p>.
This is a sample config message. Use <p class="gkConfigIs3">Your config message goes here!</p>.
This is a sample configuration message. Use <p class="gkConfig2Is3">Your configuration message goes here!</p>.
This is a sample computer message. Use <p class="gkComputerIs3">Your computer message goes here!</p>.
This is a sample coffe message. Use <p class="gkCoffeIs3">Your coffe message goes here!</p>.
This is a sample cross message. Use <p class="gkCrossIs3">Your cross message goes here!</p>.
This is a sample error message. Use <p class="gkErrorIs3">Your error message goes here!</p>.
This is a sample house message. Use <p class="gkHouseIs3">Your house message goes here!</p>.
This is a sample information message. Use <p class="gkInformationIs3">Your inforation message goes here!</p>.
This is a sample magnifier message. Use <p class="gkMagnifierIs3">Your magnifier message goes here!</p>.
This is a sample page message. Use <p class="gkPageIs3">Your page message goes here!</p>.
This is a sample lock message. Use <p class="gkLockIs3">Your lock message goes here!</p>.
This is a sample camera message. Use <p class="gkCameraIs3">Your camera message goes here!</p>.
This is a sample star message. Use <p class="gkStarIs3">Your star message goes here!</p>.
This is a sample telephone message. Use <p class="gkTelephoneIs3">Your telephone message goes here!</p>.
Tooltips
Here are some examples of a ClassicThis is just an example of what you can do using a CSS tooltip, feel free to get creative and produce your own!, CriticalCriticalThis is just an example of what you can do using a CSS tooltip, feel free to get creative and produce your own!, HelpHelpThis is just an example of what you can do using a CSS tooltip, feel free to get creative and produce your own!, InformationInformationThis is just an example of what you can do using a CSS tooltip, feel free to get creative and produce your own! and WarningWarningThis is just an example of what you can do using a CSS tooltip, feel free to get creative and produce your own! CSS powered tooltip. This is just an example of what you can do so feel free to get creative and produce your own!
Highlights
This is a highlight phrase. Use <span class="gkHighlight1">Your highlight phrase goes here!</span>.
This is a highlight phrase. Use <span class="gkHighlight2">Your highlight phrase goes here!</span>.
This is a highlight phrase. Use <span class="gkHighlight3">Your highlight phrase goes here!</span>.
This is a highlight phrase. Use <span class="gkHighlight4">Your highlight phrase goes here!</span>.
Code
Below is a sample of <pre> or <div class="gkCode1">
#wrapper {
position: relative;
float: left;
display: block;
}
Below is a sample of <div class="gkCode2">
position: relative;
float: left;
display: block;
}
Below is a sample of <div class="gkCode3"><h4>Name of your file</h4>Here goes your code</div>
File
#wrapper {position: relative;
float: left;
display: block;
}
Unordered lists
Types of unordered lists
|
<ul class="gkBullet1">
|
<ul class="gkBullet2">
|
<ul class="gkBullet3">
|
|
<ul class="gkBullet4">
|
<ul class="gkCircle1">
|
<ul class="gkCircle2">
|
|
<ul class="gkSquare1">
|
<ul class="gkSquare2">
|
<ul class="gkSquare3">
|
Ordered lists
Types of ordered list:
|
<ol class="gkRoman">
|
<ol class="gkDec">
|
<ol class="gkAlpha">
|
<ol class="gkDecimalLeadingZero">
|
<div class="gkNumber1"><p><span>here goes a number</span>and here text of element</p>
01 Element
02 Element
<div class="gkNumber2"><p><span>here goes a number</span>and here text of element</p>
01 Element
02 Element
Abbrs and acronyms
This is a sample of an abbreviation Dr. Use <abbr title="Here goes full word or phrase">here goes an abbreviation</abbr>
This is a sample of an acronym NATO. Use <acronym title="Here goes full phrase">here goes an acronym</abbr>
Definition lists
Below are samples of definition lists
<dl class="gkDef1"><dt>Here goes the word you're about to define</dt><dd>Here goes definition</dd></dl>
- Butter
- it is a dairy product made by churning fresh or fermented cream or milk. It is generally used as a spread and a condiment, as well as in cooking applications such as baking, sauce making, and frying. Butter consists of butterfat, water and milk proteins.
- Dairy milk
- is an opaque white liquid produced by the mammary glands of mammals (including monotremes). It provides the primary source of nutrition for newborn mammals before they are able to digest other types of food.
<dl class="gkDef2"><dt>Here goes the word you're about to define</dt><dd>Here goes definition</dd></dl>
- Butter
- it is a dairy product made by churning fresh or fermented cream or milk. It is generally used as a spread and a condiment, as well as in cooking applications such as baking, sauce making, and frying. Butter consists of butterfat, water and milk proteins.
- Dairy milk
- is an opaque white liquid produced by the mammary glands of mammals (including monotremes). It provides the primary source of nutrition for newborn mammals before they are able to digest other types of food.
<dl class="gkDef3"><dt>Here goes the word you're about to define</dt><dd>Here goes definition</dd></dl>
- Butter
- it is a dairy product made by churning fresh or fermented cream or milk. It is generally used as a spread and a condiment, as well as in cooking applications such as baking, sauce making, and frying. Butter consists of butterfat, water and milk proteins.
- Dairy milk
- is an opaque white liquid produced by the mammary glands of mammals (including monotremes). It provides the primary source of nutrition for newborn mammals before they are able to digest other types of food.
Legends
Legend
This is a sample legend note. Use <div class="gkLegend1"> <h4> Title </h4> <p>Lorem ipsum dolor sit amet, consectetuer adipiscing elit. Integer urna. Aenean tristique. Fusce a neque. Cum sociis natoque penatibus et magnis dis parturient montes, nascetur ridiculus mus.</p> </div>.
Legend
This is a sample legend note. Use <div class="gkLegend2"> <h4> Title </h4> <p>Lorem ipsum dolor sit amet, consectetuer adipiscing elit. Integer urna. Aenean tristique. Fusce a neque. Cum sociis natoque penatibus et magnis dis parturient montes, nascetur ridiculus mus.</p> </div>.
Legend
This is a sample legend note. Use <div class="gkLegend3"> <h4> Title </h4> <p>Lorem ipsum dolor sit amet, consectetuer adipiscing elit. Integer urna. Aenean tristique. Fusce a neque. Cum sociis natoque penatibus et magnis dis parturient montes, nascetur ridiculus mus.</p> </div>.
Legend
This is a sample legend note. Use <div class="gkLegend4"> <h4> Title </h4> <p>Lorem ipsum dolor sit amet, consectetuer adipiscing elit. Integer urna. Aenean tristique. Fusce a neque. Cum sociis natoque penatibus et magnis dis parturient montes, nascetur ridiculus mus.</p> </div>.
Legend
This is a sample legend note. Use <div class="gkLegend5"> <h4> Title </h4> <p>Lorem ipsum dolor sit amet, consectetuer adipiscing elit. Integer urna. Aenean tristique. Fusce a neque. Cum sociis natoque penatibus et magnis dis parturient montes, nascetur ridiculus mus.</p> </div>.
Legend
This is a sample legend note. Use <div class="gkLegend6"> <h4> Title </h4> <p>Lorem ipsum dolor sit amet, consectetuer adipiscing elit. Integer urna. Aenean tristique. Fusce a neque. Cum sociis natoque penatibus et magnis dis parturient montes, nascetur ridiculus mus.</p> </div>.
Legend
This is a sample legend note. Use <div class="gkLegend7"> <h4> Title </h4> <p>Lorem ipsum dolor sit amet, consectetuer adipiscing elit. Integer urna. Aenean tristique. Fusce a neque. Cum sociis natoque penatibus et magnis dis parturient montes, nascetur ridiculus mus.</p> </div>.
Dropcaps
This is a sample text with Dropcap. Use <p> <span class="gkDropcap1">t</span> to make the first letter larger. Lorem ipsum dolor sit amet, consectetur adipiscing elit. Vestibulum condimentum pulvinar justo, sed faucibus ligula feugiat ac. Morbi quis enim nulla, vel congue augue. Duis quis quam sed purus porta eleifend. Vivamus ullamcorper est id libero aliquam ullamcorper. Donec eget dignissim augue. Donec ante felis, aliquam ut consequat eget, lobortis dapibus risus. Aliquam laoreet enim et lectus ornare hendrerit. Aliquam rhoncus enim libero. Morbi aliquam, nibh mattis feugiat dapibus, nisi massa adipiscing justo, sit amet condimentum urna ipsum et lacus. Nam fermentum, eros quis ullamcorper convallis, libero mauris lacinia eros, sed tempus leo lorem vitae purus. Nunc a malesuada felis. Cras ultrices sapien eu nisi elementum non blandit urna sodales. Duis accumsan cursus massa, eu facilisis diam porta ut..</p>.
This is a sample text with Dropcap. Use <p> <span class="gkDropcap2">t</span> to make the first letter larger. Lorem ipsum dolor sit amet, consectetur adipiscing elit. Vestibulum condimentum pulvinar justo, sed faucibus ligula feugiat ac. Morbi quis enim nulla, vel congue augue. Duis quis quam sed purus porta eleifend. Vivamus ullamcorper est id libero aliquam ullamcorper. Donec eget dignissim augue. Donec ante felis, aliquam ut consequat eget, lobortis dapibus risus. Aliquam laoreet enim et lectus ornare hendrerit. Aliquam rhoncus enim libero. Morbi aliquam, nibh mattis feugiat dapibus, nisi massa adipiscing justo, sit amet condimentum urna ipsum et lacus. Nam fermentum, eros quis ullamcorper convallis, libero mauris lacinia eros, sed tempus leo lorem vitae purus. Nunc a malesuada felis. Cras ultrices sapien eu nisi elementum non blandit urna sodales. Duis accumsan cursus massa, eu facilisis diam porta ut..</p>.
This is a sample text with Dropcap. Use <p class="gkDropcap3"> <span class="gkDropcap3">t</span> to make the first letter larger. Lorem ipsum dolor sit amet, consectetur adipiscing elit. Vestibulum condimentum pulvinar justo, sed faucibus ligula feugiat ac. Morbi quis enim nulla, vel congue augue. Duis quis quam sed purus porta eleifend. Vivamus ullamcorper est id libero aliquam ullamcorper. Donec eget dignissim augue. Donec ante felis, aliquam ut consequat eget, lobortis dapibus risus. Aliquam laoreet enim et lectus ornare hendrerit. Aliquam rhoncus enim libero. Morbi aliquam, nibh mattis feugiat dapibus, nisi massa adipiscing justo, sit amet condimentum urna ipsum et lacus. Nam fermentum, eros quis ullamcorper convallis, libero mauris lacinia eros, sed tempus leo lorem vitae purus. Nunc a malesuada felis. Cras ultrices sapien eu nisi elementum non blandit urna sodales. Duis accumsan cursus massa, eu facilisis diam porta ut..</p>.
Floated blocks
Below are samples of text in which part of it is displayed in a separate block
<p> Here goes main part of the text <span class="gkBlockTextLeft">Block of text</span>rest of the text</p>
Lorem ipsum dolor sit amet, consectetur adipiscing elit. Vestibulum condimentum pulvinar justo, sed faucibus ligula feugiat ac. Morbi quis enim nulla, vel congue augue. Duis quis quam sed purus porta eleifend.Lorem ipsum dolor sit amet, consectetur adipiscing elit. Vestibulum condimentum pulvinar justo, sed faucibus ligula feugiat ac. Morbi quis enim nulla, vel congue augue.Donec eget dignissim augue. Donec ante felis, aliquam ut consequat eget, lobortis dapibus risus. Aliquam laoreet enim et lectus ornare hendrerit. Aliquam rhoncus enim libero. Morbi aliquam, nibh mattis feugiat dapibus, nisi massa adipiscing justo, sit amet condimentum urna ipsum et lacus. Nam fermentum, eros quis ullamcorper convallis, libero mauris lacinia eros, sed tempus leo lorem vitae purus. Nunc a malesuada felis. Cras ultrices sapien eu nisi elementum non blandit urna sodales. Duis accumsan cursus massa, eu facilisis diam porta ut. Morbi cursus est vel velit hendrerit dictum.
<p> Here goes main part of the text <span class="gkBlockTextRight">Block of text</span>rest of the text</p>
Lorem ipsum dolor sit amet, consectetur adipiscing elit. Vestibulum condimentum pulvinar justo, sed faucibus ligula feugiat ac. Morbi quis enim nulla, vel congue augue. Duis quis quam sed purus porta eleifend.Lorem ipsum dolor sit amet, consectetur adipiscing elit. Vestibulum condimentum pulvinar justo, sed faucibus ligula feugiat ac. Morbi quis enim nulla, vel congue augue.Donec eget dignissim augue. Donec ante felis, aliquam ut consequat eget, lobortis dapibus risus. Aliquam laoreet enim et lectus ornare hendrerit. Aliquam rhoncus enim libero. Morbi aliquam, nibh mattis feugiat dapibus, nisi massa adipiscing justo, sit amet condimentum urna ipsum et lacus. Nam fermentum, eros quis ullamcorper convallis, libero mauris lacinia eros, sed tempus leo lorem vitae purus. Nunc a malesuada felis. Cras ultrices sapien eu nisi elementum non blandit urna sodales. Duis accumsan cursus massa, eu facilisis diam porta ut. Morbi cursus est vel velit hendrerit dictum.
<p> Here goes main part of the text <span class="gkBlockTextCenter">Block of text</span>rest of the text</p>
Lorem ipsum dolor sit amet, consectetur adipiscing elit. Vestibulum condimentum pulvinar justo, sed faucibus ligula feugiat ac. Morbi quis enim nulla, vel congue augue. Duis quis quam sed purus porta eleifend.Lorem ipsum dolor sit amet, consectetur adipiscing elit. Vestibulum condimentum pulvinar justo, sed faucibus ligula feugiat ac. Morbi quis enim nulla, vel congue augue.Donec eget dignissim augue. Donec ante felis, aliquam ut consequat eget, lobortis dapibus risus. Aliquam laoreet enim et lectus ornare hendrerit. Aliquam rhoncus enim libero. Morbi aliquam, nibh mattis feugiat dapibus, nisi massa adipiscing justo, sit amet condimentum urna ipsum et lacus. Nam fermentum, eros quis ullamcorper convallis, libero mauris lacinia eros, sed tempus leo lorem vitae purus. Nunc a malesuada felis. Cras ultrices sapien eu nisi elementum non blandit urna sodales. Duis accumsan cursus massa, eu facilisis diam porta ut. Morbi cursus est vel velit hendrerit dictum.
Other span blocks
This is a sample pin note. Use <span class="gkClear">Lorem ipsum dolor sit amet, consectetuer adipiscing elit. Integer urna. Aenean tristique. Fusce a neque. Cum sociis natoque penatibus et magnis dis parturient montes, nascetur ridiculus mus. </span>
This is a sample pin note. Use <span class="gkClear-1">Lorem ipsum dolor sit amet, consectetuer adipiscing elit. Integer urna. Aenean tristique. Fusce a neque. Cum sociis natoque penatibus et magnis dis parturient montes, nascetur ridiculus mus. </span>
This is a sample pin note. Use <span class="gkClear-2">Lorem ipsum dolor sit amet, consectetuer adipiscing elit. Integer urna. Aenean tristique. Fusce a neque. Cum sociis natoque penatibus et magnis dis parturient montes, nascetur ridiculus mus. </span>
This is a sample pin note. Use <span class="gkColor">Lorem ipsum dolor sit amet, consectetuer adipiscing elit. Integer urna. Aenean tristique. Fusce a neque. Cum sociis natoque penatibus et magnis dis parturient montes, nascetur ridiculus mus. </span>
This is a sample pin note. Use <span class="gkColor-1">Lorem ipsum dolor sit amet, consectetuer adipiscing elit. Integer urna. Aenean tristique. Fusce a neque. Cum sociis natoque penatibus et magnis dis parturient montes, nascetur ridiculus mus. </span>
This is a sample pin note. Use <span class="gkColor-2">Lorem ipsum dolor sit amet, consectetuer adipiscing elit. Integer urna. Aenean tristique. Fusce a neque. Cum sociis natoque penatibus et magnis dis parturient montes, nascetur ridiculus mus. </span>
This is a sample pin note. Use <span class="gkColor-3">Lorem ipsum dolor sit amet, consectetuer adipiscing elit. Integer urna. Aenean tristique. Fusce a neque. Cum sociis natoque penatibus et magnis dis parturient montes, nascetur ridiculus mus. </span>
This is a sample pin note. Use <span class="gkColor-4">Lorem ipsum dolor sit amet, consectetuer adipiscing elit. Integer urna. Aenean tristique. Fusce a neque. Cum sociis natoque penatibus et magnis dis parturient montes, nascetur ridiculus mus. </span>
This is a sample pin note. Use <span class="gkColor-5">Lorem ipsum dolor sit amet, consectetuer adipiscing elit. Integer urna. Aenean tristique. Fusce a neque. Cum sociis natoque penatibus et magnis dis parturient montes, nascetur ridiculus mus. </span>
This is a sample pin note. Use <span class="gkColor-6">Lorem ipsum dolor sit amet, consectetuer adipiscing elit. Integer urna. Aenean tristique. Fusce a neque. Cum sociis natoque penatibus et magnis dis parturient montes, nascetur ridiculus mus. </span>
This is a sample pin note. Use <span class="gkColor-7">Lorem ipsum dolor sit amet, consectetuer adipiscing elit. Integer urna. Aenean tristique. Fusce a neque. Cum sociis natoque penatibus et magnis dis parturient montes, nascetur ridiculus mus. </span>
Blockquotes
This is a sample quote text. Use < blockquote > Your quoted text goes here!< /blockquote >
This is a sample quote text. Use< blockquote><div class="gkBlockquote1"><div> Your quoted text goes here!< /div>< /div>< /blockquote >
This is a sample quote text. Use< blockquote><div class="gkBlockquote2"><div> Your quoted text goes here!< /div>< /div>< /blockquote >
This is a sample quote text. Use< blockquote><div class="gkBlockquote3"><div> Your quoted text goes here!< /div>< /div>< /blockquote >
This is a sample quote text. Use< blockquote><div class="gkBlockquote4"><div> Your quoted text goes here!< /div>< /div>< /blockquote >Tables
Table Header (thead) Table Footer (tfoot) Column 1 Column 2 Cell 3 - part of tbody Cell 4 - part of tbody Cell 5 - part of tbody Cell 6 - part of tbody Cell 7 - part of tbody Cell 8 - part of tbody
Table Header (thead) Table Footer (tfoot) Column 1 Column 2 Cell 1 - part of tbody Cell 2 - part of tbody Cell 3 - part of tbody Cell 4 - part of tbody Cell 5 - part of tbody Cell 6 - part of tbody
Template additional styles
In order to get the video you have to use code like this:
<a class="gk_video_frame" href="http://www.vimeo.com/16274294" rel="mediabox[720 410]">
<img src="/images/stories/demo/demo_video_1.png" border="0" alt="Video 1" />
<span class="gk_vframe">Frame</span>
<span class="gk_voverlay">Overlay</span>
Watch the video
</a>
As a href attribute you set the video address. In the rel attribute you can specify the video size. Image element is the thumbnail in the frame.
You can also create a blocks with icons. The structure is always similar - you have to change only second class near gk_block:
<div class="gk_block tablet">
<h3><a href="#">Mobile Ready</a></h3>
<p>Lorem ipsum dolor sit amet, consectetur adipiscing elit. Cras quis erat elit. Donec pretium condimentum</p>
</div>
Available blocks styles with classes:
android
Lorem ipsum dolor sit amet, consectetur adipiscing elit. Cras quis erat elit. Donec pretium condimentum
blackberry
Lorem ipsum dolor sit amet, consectetur adipiscing elit. Cras quis erat elit. Donec pretium condimentum
calendar
Lorem ipsum dolor sit amet, consectetur adipiscing elit. Cras quis erat elit. Donec pretium condimentum
chat
Lorem ipsum dolor sit amet, consectetur adipiscing elit. Cras quis erat elit. Donec pretium condimentum
clock
Lorem ipsum dolor sit amet, consectetur adipiscing elit. Cras quis erat elit. Donec pretium condimentum
cog
Lorem ipsum dolor sit amet, consectetur adipiscing elit. Cras quis erat elit. Donec pretium condimentum
firefox
Lorem ipsum dolor sit amet, consectetur adipiscing elit. Cras quis erat elit. Donec pretium condimentum
info
Lorem ipsum dolor sit amet, consectetur adipiscing elit. Cras quis erat elit. Donec pretium condimentum
mac
Lorem ipsum dolor sit amet, consectetur adipiscing elit. Cras quis erat elit. Donec pretium condimentum
Lorem ipsum dolor sit amet, consectetur adipiscing elit. Cras quis erat elit. Donec pretium condimentum
mobilephone
Lorem ipsum dolor sit amet, consectetur adipiscing elit. Cras quis erat elit. Donec pretium condimentum
phone
Lorem ipsum dolor sit amet, consectetur adipiscing elit. Cras quis erat elit. Donec pretium condimentum
recycledbag
Lorem ipsum dolor sit amet, consectetur adipiscing elit. Cras quis erat elit. Donec pretium condimentum
shoppingcart
Lorem ipsum dolor sit amet, consectetur adipiscing elit. Cras quis erat elit. Donec pretium condimentum
tablet
Lorem ipsum dolor sit amet, consectetur adipiscing elit. Cras quis erat elit. Donec pretium condimentum
user
Lorem ipsum dolor sit amet, consectetur adipiscing elit. Cras quis erat elit. Donec pretium condimentum
When stress testing our loadbalancer, i was unable to get more than 20 reliable ssh connections. The following error would be reported.
ssh_exchange_identification: Connection closed by remote host
The resolution for this is quite simple.
Edit the /etc/ssh/sshd_config file and increase the MaxStartups. On my server i set this to 200.
Edit /etc/sysctrl.conf and add the following line:
net.core.netdev_max_backlog = 3000
Then apply this change:
# sysctl -p
To insert code samples into your articles in joomla, you use the pre tag like this:
<pre xml:lang="xxx"> your code goes here </pre>
You can use any of the following languages for colorizing your code in articles.
recital, abap, dos, lotusscript, rails, actionscript3, dot, lscript, reg, actionscript, d, lua, robots, ada, eiffel, m68k, ruby, apache, email, make, sas, applescript, fortran, matlab, scala, apt_sources, freebasic, mirc, scheme, asm, genero, mpasm, scilab, asp, gettext, mxml, sdlbasic, autoit, glsl, mysql, smalltalk, avisynth, gml, nsis, smarty, bash, gnuplot, objc, sql, basic4gl, groovy,
ocaml-brieftcl, bf, haskell, ocaml, teraterm, blitzbasic, hq9plus, oobas, text, bnf, html4strict, oracle11, thinbasic, boo, idl, oracle8, tsql, caddcl, index.html, pascal, typoscript, cadlisp, ini, perl, vbnet, cfdg, inno, per, vb, cfm, intercal, php-brief, verilog, cil, io, php, vhdl, c_mac, java5, pic16, vim, cobol, java, pixelbender, visualfoxpro, c, javascript, plsql, visualprolog, cpp, kixtart, povray, whitespace, cpp-qt, klonec, powershell, winbatch, csharp, klonecpp, progress, xml, css, latex, prolog, xorg_conf, delphi, lisp, providex, xpp, diff, lolcode, python, z80, div, lotusformulas, qbasic
In this article Barry Mavin, CEO and Chief Software Architect for Recital, gives details on Working with user-defined Functions in the Recital Database Server.
Overview
User-defined functions (UDFs) are collections of statements written in the Recital 4GL (compatible with Visual FoxPro) stored under a name and saved in a Database. User-defined functions are just-in-time compiled by the Recital database engine. User-defined functions can be used in SQL statements to extend the power and flexibility of the inbuilt functions. Using the Database Administrator in Recital Enterprise Studio, you can easily create, view, modify, and test Stored Procedures, Triggers, and user-defined functions.
Tip
You can also extend the Recital Database Server with C Extension Libraries and use the functions defined within that library also.Creating and Editing user-defined functions
To create a new User-defined function, right-click the Procedures node in the Databases tree of the Project Explorer and choose Create. To modify an existing User-defined function select the User-defined function in the Databases Tree in the Project Explorer by double-clicking on it or selecting Modify from the context menu. By convertion we recommend that you name your User-defined functions beginning with "f_xxx_", where xxx is the name of the table that they are associated with.
Testing the user-defined function
To test run the user-defined function, select it in the Databases Tree in the Project Explorer by double-clicking on it. Once the Database Administrator is displayed, click the Run button to run it.
Example
Example: user-defined function "f_order_details_total".
////////////////////////////////////////////////////////////////////////
// example user-defined function
function f_order_details_total(pUnitprice, pQuantity, pDiscount)
return (pUnitprice + pQuantity + pDiscount) > 0
endfunc
Example: using the user-defined function in a SQL SELECT statement.
//////////////////////////////////////////////////////////////////////// // sample code to use a user-defined function in a SQL SELECT statement select * from customers where f_order_details_total(Unitprice, Quantity, Discount)
Using user-defined function libraries with the Recital Database Server
You can place all of the user-defined functions associated with a particular table into a procedure library. You then define an Open Trigger for the table that opens up the procedure library whenever the table is accessed. This is a much faster way of using user-defined functions as it reduces the amount of file open/close operations during a query and also simplifies development and maintenance.
By convertion we recommend that you should name the library using the convention "lib_xxx", where xxx is the name of the table that the library is associated with.
Example: procedure library in lib_order_details.
////////////////////////////////////////////////////////////////////////
// example user-defined functions
function f_order_details_total(pUnitprice, pQuantity, pDiscount)
return (pUnitprice * pQuantity - pDiscount) > 0
endfunc
function f_order_details_diff(pUnitprice, pQuantity, pDiscount, pValue)
return f_order_details_total(pUnitprice, pQuantity, pDiscount) - pValue
endfunc
Example: Open Trigger in dt_order_details_open.
//////////////////////////////////////////////////////////////////////// // This trigger will open up the procedure library when the table is opened set procedure to lib_order_details additive
Example: Close Trigger in dt_order_details_close.
//////////////////////////////////////////////////////////////////////// // This trigger will close the procedure library when the table is closed close procedure lib_order_details
Example: using the user-defined function in a SQL SELECT statement.
//////////////////////////////////////////////////////////////////////// // sample code to use a user-defined function in a SQL SELECT statement select * from customers where f_order_details_total(Unitprice, Quantity, Discount)
User-defined functions can also be used with any of the Client Drivers that work with the Recital Database Server.
In this article Chris Mavin, explains and details how to use the Recital Database Server with the Open Source Servlet Container Apache Tomcat.
Overview
PHP has exploded on the Internet, but its not the only way to create web applications and dynamic websites. Using Java Servlets, JavaServer Pages and Apache Tomcat you can develop web applications in a more powerful full featured Object Oriented Language, that is easier to debug, maintain, and improve.
Tomcat Installation
There are a number of popular Java application servers such as IBM Web Sphere and BEA WebLogic but today we will be talking about the use of Apache Tomcat 5, the Open Source implementation of the Java Servlet and JavaServer Pages technologies developed at the Apache Software Foundation. The Tomcat Servlet engine is the official reference implementation for both the Servlet and JSP specifications, which are developed by Sun under the Java Community Process. What this means is that the Tomcat Server implements the Servlet and JSP specifications as well or better than most commercial application servers.
Apache Tomcat is available for free but offers many of the same features that commercially available Web application containers boast.
Tomcat 5 supports the latest Servlet and JSP specifications, Servlet 2.4, and JSP 2.0, along with features such as:
-
Tomcat can run as a standalone webserver or a Servlet/JSP engine for other Web Servers.
-
Multiple connectors - for enabling multiple protocol handlers to access the same Servlet engine.
-
JNDI - The Java Naming and Domain Interface is supported.
-
Realms - Databases of usernames and passwords that identify valid users of a web application.
-
Virtual hosts - a single server can host applications for multiple domain names. You need to edit server.xml to configure virtual hosts.
-
Valve chains.
-
JDBC - Tomcat can be configured to use any JDBC driver.
-
DBCP - Tomcat can use the Apache commons DBCP for connection pooling.
-
Servlet reloading (Tomcat monitors any changes to the classes deployed within that web server.)
-
HTTP functionality - Tomcat functions as a fully featured Web Server.
-
JMX, JSP and Struts-based administration.
Tomcat Installation
In this next two sections we will walk through the install and setup of Tomcat for use with the Recital database server.
To download Tomcat visit the Apache Tomcat web site is at http://jakarta.apache.org/tomcat.
Follow the download links to the binary for the hardware and operating system you require.
For Tomcat to function fully you need a full Java Development Kit (JDK). If you intend to simply run pre compiled JavaServer pages you can do so using just the Java Runtime Environment(JRE).
The JDK 1.5 is the preferred Java install to work with Tomcat 5, although it is possible to run Tomcat 5 with JDK 1.4 but you will have to download and install the compat archive available from the Tomcat website.
For the purpose of this article we will be downloading and using Tomcat 5 for Linux and JDK 5.0,
you can download the JDK at http://java.sun.com/javase/downloads/index.jsp.
Now we have the JDK, if the JAVA_HOME environment variable isn't set we need to set it to refer to the base JDK install directory.
Linux/Unix:
$ JAVA_HOME= /usr/lib/j2se/1.4/ $ EXPORT $JAVA_HOME
Windows NT/2000/XP:
Follow the following steps:
1. Open Control Panel.
2. Click the System icon.
3. Go to the Advanced tab.
4. Click the Environment Variables button.
5. Add the JAVA_HOME variable into the system environment variables.
The directory structure of a Tomcat installation comprises of the following:
/bin - Contains startup, shutdown and other scripts. /common - Common classes that the container and web applications can use. /conf - Contains Tomcat XML configuration files XML files. /logs - Serlvet container and application logs. /server - Classes used only by the Container. /shared - Classes shared by all web application. /webapps - Directory containing the web applications. /work - Temporary directory for files and directories.
The important files that you should know about are the following:
-
server.xml
The Tomcat Server main configuration file is the [tomcat install path]\conf\server.xml file. This file is mostly setup correctly for general use. It is within this file where you specify the port you wish to be running the server on. Later in this article I show you how to change the default port used from 8080 to port 80.
-
web.xml
The web.xml file provides the configuration for your web applications. There are two locations where the web.xml file is used,
web-inf\web.xml provides individual web application configurations and [tomcat install path]conf\web.xml contains the server wide configuration.
Setting up Tomcat for use
We'll start by changing the port that Tomcat will be listening on to 80.
To do this we need to edit [tomcat install path]/conf/server.xml and change the port attribute of the connector element from 8080 to 80.
After you have made the alteration the entry should read as:
<!-- Define a non-SSL HTTP/1.1 Connector on port 8080 --> <Connector port="80" maxHttpHeaderSize="8192"
Next we want to turn on Servlet reloading, this will cause the web application to be recompiled each time it is accessed, allowing us to make changes to the files without having to worry about if the page is being recompiled or not.
To enable this you need to edit [tomcat install path]/conf/context.xml and change <Context> element to <Context reloadable="true">.
After you have made the alteration the entry should read as:
<Context reloadable="true"> <WatchedResource>WEB-INF/web.xml</WatchedResource> </Context>
Next we want to enable the invoker Servlet.
The "invoker" Servlet executes anonymous Servlet classes that have not been defined in a web.xml file. Traditionally, this Servlet is mapped to the URL pattern "/servlet/*", but you can map it to other patterns as well. The extra path info portion of such a request must be the fully qualified class name of a Java class that implements Servlet, or the Servlet name of an existing Servlet definition.
To enable the invoker Servlet you need to edit the to [tomcat install path]/conf/web.xml and uncomment the Servlet and Servlet-mapping elements that map the invoker /servlet/*.
After you have made the alteration the entry should read as:
<servlet> <servlet-name>invoker</servlet-name> <servlet-class>org.apache.catalina.servlets.InvokerServlet</servlet-class> <init-param> <param-name>debug</param-name> <param-value>0</param-value> </init-param> <load-on-startup>2</load-on-startup> </servlet> <servlet-mapping> <servlet-name>invoker</servlet-name> <url-pattern>/servlet/*</url-pattern> </servlet-mapping>
If you are you not interested in setting up your own install of Tomcat there are prebuilt versions Tomcat that has all of the above changes already made, and has the test HTML, JSP, and Servlet files already bundled. Just unzip the file, set your JAVA_HOME
Next we will give Tomcat and your web applications access to the Recital JDBC driver.
For the purposes of this article we are going to install the Recital JDBC driver in the /[tomcat install path]/common/lib/ this gives Tomcat and your web applications access to the Recital JDBC driver. The driver can be installed in a number of places in the Tomcat tree, giving access to the driver to specific application or just to the web application and not the container. For more information refer to the Tomcat documentation.
Copy the recitalJDBC.jar which is located at /[recital install path]/drivers/recitalJDBC.jar to the /[tomcat install path]/common/lib/ directory.
Linux:
$cp /[recital install path]/drivers/recitalJDBC.jar /[tomcat install path]/common/lib/
Once you have completed all the steps detailed above, fire up the server using the script used by your platform's Tomcat installation.
Linux/Unix:
[tomcat install path]/bin/startup.sh
Windows:
[tomcat install path]/bin/startup
If you are having problems configuring your Tomcat Installation or would like more detail visit the online documentation a the Apache Tomcat site.
Example and Links
Now we have setup our Tomcat installation, lets get down to it with a JSP example which uses the Recital JDBC driver to access the demonstration database (southwind) shipped with the Recital Database Server.
The example provided below is a basic JDBC web application, where the user simply selects a supplier from the listbox and requests the products supplied by that supplier.
To run the example download and extract the tar archive or simple save each of the two jsp pages individually into /[tomcat install path]/webapps/ROOT/ on your server.
By enabling the invoker Servlet earlier we have removed the need to set the example up as a web application in the Tomcat configuration files.
You can now access the example web application at http://[Server Name]/supplier.jsp if the page doesn't display, check you have followed all the Tomcat installation steps detailed earlier in this article and then make sure both Tomcat and a licensed Recital UAS are running.
Downloads:
Archive: jspExample.tar
Right click and save as individual files and rename as .jsp files:
supplier.txt details.txt
Further Reading on JSP and JDBC can be found at http://www-128.ibm.com/developerworks/java/library/j-webdata/
Final Thoughts
Recital and Apache tomcat are a powerful combination, using Java Servlet technology you can separate application logic and the presentation extremely well. Tomcat, JSP, Java Servlets and the Recital database server form a robust platform independent, easily maintained and administered solution with which to unlock the power of your Recital, Foxpro, Foxbase, Clipper, RMS and C-SAM data.
In this article Barry Mavin, CEO and Chief Software Architect for Recital details how to Build C Extension Libraries to use with Recital.
Overview
It is possible to extend the functionaliy of Recital products using "Extension libraries" that can be written in C. These extension libraries, written using the Recital/SDK API, are dynamically loadable from all Recital 9 products. This includes:
- Recital
- Recital Server
- Recital Web
Building C Extension Libraries
You can create C wrappers for virtually any native operating system function and access these from the Recital 4GL. Unlike traditional APIs which only handle the development of C functions that are callable from the 4GL, the Recital/SDK allows you to build Classes that are accessible from all Recital products. e.g. You could create a GUI framework for Linux that handles VFP system classes!
To deploy your C Extension Libraries, copy them to the following location:
Windows:
\Program Files\Recital\extensions
Linux/Unix:
/opt/recital/extensions
Please see the Recital/SDK API Reference documentation for further details.
Sample code
Listed below is the complete example of a C Extension Library.:
////////////////////////////////////////////////////////////////////////////////
#include "mirage_demo.h"
////////////////////////////////////////////////////////////////////////////////
// Declare your functions and classes below as follows:
//
// Recital Function Name, C Function Name, Type (Function or Class)
//
#define MAX_ELEMENTS 7
static struct API_SHARED_FUNCTION_TABLE api_function_table[MAX_ELEMENTS] = {
{"schar", "fnSamplesCharacter", API_FUNCTION},
{"stype", "fnSamplesType", API_FUNCTION},
{"slog", "fnSamplesLogical", API_FUNCTION},
{"snum", "fnSamplesNumeric", API_FUNCTION},
{"sopen", "fnSamplesOpen", API_FUNCTION},
{"myclass", "clsMyClass", API_CLASS},
{NULL, NULL, -1}
};
////////////////////////////////////////////////////////////////////////////////
// Recital API initialization. This should be in only ONE of your C files
// **IT SHOULD NEVER BE EDITED OR REMOVED**
INIT_API;
///////////////////////////////////////////////////////////////////////
// This is an example of passing a character parameter and returning one.
RECITAL_FUNCTION fnSamplesCharacter(void)
{
char *arg1;
if (!_parse_parameters(PCOUNT, "C", &arg1)) {
ERROR(-1, "Incorrect parameters");
}
_retc(arg1);
}
///////////////////////////////////////////////////////////////////////
// This is an example of passing a numeric parameter and returning one.
RECITAL_FUNCTION fnSamplesNumeric(void)
{
int arg1;
if (!_parse_parameters(PCOUNT, "N", &arg1)) {
ERROR(-1, "Incorrect parameters");
}
_retni(arg1);
}
///////////////////////////////////////////////////////////////////////
// This is an example returns the data type of the parameter passed.
RECITAL_FUNCTION fnSamplesType(void)
{
char result[10];
if (PCOUNT != 1) {
ERROR(-1, "Incorrect parameters");
}
switch (_parinfo(1)) {
case API_CTYPE:
strcpy(result, "Character");
break;
case API_NTYPE:
strcpy(result, "Numeric");
break;
case API_LTYPE:
strcpy(result, "Logical");
break;
case API_DTYPE:
strcpy(result, "Date");
break;
case API_TTYPE:
strcpy(result, "DateTime");
break;
case API_YTYPE:
strcpy(result, "Currency");
break;
case API_ATYPE:
strcpy(result, "Array");
break;
default:
strcpy(result, "Unkown");
break;
}
_retc(result);
}
///////////////////////////////////////////////////////////////////////
// This is an example returns "True" or False.
RECITAL_FUNCTION fnSamplesLogical(void)
{
char result[10];
int arg1;
if (!_parse_parameters(PCOUNT, "L", &arg1)) {
ERROR(-1, "Incorrect parameters");
}
if (arg1) strcpy(result, "True");
else strcpy(result, "False");
_retc(result);
}
///////////////////////////////////////////////////////////////////////
// This example opens a table.
RECITAL_FUNCTION fnSamplesOpen(void)
{
char *arg1;
if (!_parse_parameters(PCOUNT, "C", &arg1)) {
ERROR(-1, "Incorrect parameters");
}
if (_parinfo(1) == API_CTYPE) {
_retni(COMMAND(arg1));
} else {
_retni(-1);
}
}
///////////////////////////////////////////////////////////////////////
// Define the MyClass CLASS using the API macros
///////////////////////////////////////////////////////////////////////
RECITAL_EXPORT int DEFINE_CLASS(clsMyClass)
{
/*-------------------------------------*/
/* Dispatch factory methods and return */
/*-------------------------------------*/
DISPATCH_FACTORY();
/*---------------------------------*/
/* Dispatch constructor and return */
/*---------------------------------*/
DISPATCH_METHOD(clsMyClass, Constructor);
/*--------------------------------*/
/* Dispatch destructor and return */
/*--------------------------------*/
DISPATCH_METHOD(clsMyClass, Destructor);
/*-----------------------------------*/
/* Dispatch DEFINE method and return */
/*-----------------------------------*/
DISPATCH_METHOD(clsMyClass, Define);
/*------------------------------*/
/* Dispatch SET or GET PROPERTY */
/* method for property NumValue */
/* then return. */
/*------------------------------*/
DISPATCH_PROPSET(clsMyClass, NumValue);
DISPATCH_PROPGET(clsMyClass, NumValue);
/*------------------------------*/
/* Dispatch SET or GET PROPERTY */
/* method for property LogValue */
/* then return. */
/*------------------------------*/
DISPATCH_PROPSET(clsMyClass, LogValue);
DISPATCH_PROPGET(clsMyClass, LogValue);
/*-------------------------------*/
/* Dispatch SET or GET PROPERTY */
/* method for property DateValue */
/* then return. */
/*-------------------------------*/
DISPATCH_PROPSET(clsMyClass, DateValue);
DISPATCH_PROPGET(clsMyClass, DateValue);
/*-------------------------------*/
/* Dispatch SET or GET PROPERTY */
/* method for property TimeValue */
/* then return. */
/*-------------------------------*/
DISPATCH_PROPSET(clsMyClass, TimeValue);
DISPATCH_PROPGET(clsMyClass, TimeValue);
/*-------------------------------*/
/* Dispatch SET or GET PROPERTY */
/* method for property CurrValue */
/* then return. */
/*-------------------------------*/
DISPATCH_PROPSET(clsMyClass, CurrValue);
DISPATCH_PROPGET(clsMyClass, CurrValue);
/*-------------------------------*/
/* Dispatch SET or GET PROPERTY */
/* method for property CharValue */
/* then return. */
/*-------------------------------*/
DISPATCH_PROPSET(clsMyClass, CharValue);
DISPATCH_PROPGET(clsMyClass, CharValue);
/*------------------------------*/
/* Dispatch SET or GET PROPERTY */
/* method for property ObjValue */
/* then return. */
/*------------------------------*/
DISPATCH_PROPSET(clsMyClass, ObjValue);
DISPATCH_PROPGET(clsMyClass, ObjValue);
/*-----------------------------------*/
/* If message not found return error */
/*-----------------------------------*/
OBJECT_RETERROR("Unknown message type");
}
////////////////////////////////////////////////////////////////////////////////
// Define METHOD handlers
////////////////////////////////////////////////////////////////////////////////
DEFINE_METHOD(clsMyClass, Constructor)
{
struct example_data *objectDataArea;
/* Allocate memory for objects objectData area */
objectDataArea = (struct example_data *)
malloc(sizeof(struct example_data));
if (objectDataArea == NULL) return(-1);
/* Assign the default property values */
strcpy(objectDataArea->prop_charvalue, "Test API object");
objectDataArea->prop_numvalue = 15.2827;
objectDataArea->prop_logvalue = 'F';
strcpy(objectDataArea->prop_datevalue, DATE_DATE());
strcpy(objectDataArea->prop_timevalue, DATE_DATETIME());
strcpy(objectDataArea->prop_currvalue, "15.2827");
strcpy(objectDataArea->object_name, "APIobject");
objectDataArea->prop_objvalue
= OBJECT_NEW(objectDataArea->object_name, "exception", NULL);
/* Set the object objectData area */
OBJECT_SETDATA((char *)objectDataArea);
return(0);
}
DEFINE_METHOD(clsMyClass, Destructor)
{
struct example_data *objectData = (struct example_data *)OBJECT_GETDATA();
if (objectData != NULL) {
if (objectData->prop_objvalue != NULL)
OBJECT_DELETE(objectData->prop_objvalue);
free(objectData);
objectData = NULL;
}
return(0);
}
DEFINE_METHOD(clsMyClass, Define)
{
struct example_data *objectData = (struct example_data *)OBJECT_GETDATA();
struct API_EXPRESSION result;
char buffer[512];
int rc;
/* Check the object class */
OBJECT_GETPROPERTY(objectData->prop_objvalue, "class", buffer);
rc = OBJECT_GETARG(buffer, &result);
if (result.errno == 0 && result.type == 'C'
&& strcmp(result.character, "Exception") == 0) {
switch (OBJECT_GETARGC()) {
case 1:
rc = OBJECT_GETPARAMETER(1, &result);
if (result.errno == 0 && result.type == 'C') {
OBJECT_SETARG(buffer, &result);
rc = OBJECT_SETPROPERTY(objectData->prop_objvalue,
"message", buffer);
}
break;
case 2:
rc = OBJECT_GETPARAMETER(2, &result);
if (result.errno == 0 && result.type == 'N') {
OBJECT_SETARG(buffer, &result);
rc = OBJECT_SETPROPERTY(objectData->prop_objvalue,
"errorno", buffer);
}
}
}
result.type = 'L';
result.logical = (rc == 0 ? 'T' : 'F');
OBJECT_RETRESULT(&result);
}
////////////////////////////////////////////////////////////////////////////////
// Define GET property handlers
////////////////////////////////////////////////////////////////////////////////
DEFINE_PROPERTYGET(clsMyClass, NumValue)
{
struct example_data *objectData = (struct example_data *)OBJECT_GETDATA();
if (objectData == NULL) return(-1);
OBJECT_RETPROPERTY('N', objectData->prop_numvalue);
}
DEFINE_PROPERTYGET(clsMyClass, LogValue)
{
struct example_data *objectData = (struct example_data *)OBJECT_GETDATA();
if (objectData == NULL) return(-1);
OBJECT_RETPROPERTY('L', objectData->prop_logvalue);
}
DEFINE_PROPERTYGET(clsMyClass, DateValue)
{
struct example_data *objectData = (struct example_data *)OBJECT_GETDATA();
if (objectData == NULL) return(-1);
OBJECT_RETPROPERTY('D', objectData->prop_datevalue);
}
DEFINE_PROPERTYGET(clsMyClass, TimeValue)
{
struct example_data *objectData = (struct example_data *)OBJECT_GETDATA();
if (objectData == NULL) return(-1);
OBJECT_RETPROPERTY('T', objectData->prop_timevalue);
}
DEFINE_PROPERTYGET(clsMyClass, CurrValue)
{
struct example_data *objectData = (struct example_data *)OBJECT_GETDATA();
if (objectData == NULL) return(-1);
OBJECT_RETPROPERTY('Y', objectData->prop_currvalue);
}
DEFINE_PROPERTYGET(clsMyClass, CharValue)
{
struct example_data *objectData = (struct example_data *)OBJECT_GETDATA();
if (objectData == NULL) return(-1);
OBJECT_RETPROPERTY('C', objectData->prop_charvalue);
}
DEFINE_PROPERTYGET(clsMyClass, ObjValue)
{
struct example_data *objectData = (struct example_data *)OBJECT_GETDATA();
if (objectData == NULL) return(-1);
OBJECT_RETPROPERTY('O', objectData->prop_objvalue);
}
////////////////////////////////////////////////////////////////////////////////
// Define SET property handlers
////////////////////////////////////////////////////////////////////////////////
DEFINE_PROPERTYSET(clsMyClass, NumValue)
{
struct example_data *objectData = (struct example_data *)OBJECT_GETDATA();
struct API_EXPRESSION result;
int rc = OBJECT_ERROR;
OBJECT_GETVALUE(&result);
if (result.errno == 0 && result.type == 'N') {
objectData->prop_numvalue = result.number;
rc = OBJECT_SUCCESS;
}
return(rc);
}
DEFINE_PROPERTYSET(clsMyClass, LogValue)
{
struct example_data *objectData = (struct example_data *)OBJECT_GETDATA();
struct API_EXPRESSION result;
int rc = OBJECT_ERROR;
OBJECT_GETVALUE(&result);
if (result.errno == 0 && result.type == 'L') {
objectData->prop_logvalue = result.logical;
rc = OBJECT_SUCCESS;
}
return(rc);
}
DEFINE_PROPERTYSET(clsMyClass, DateValue)
{
struct example_data *objectData = (struct example_data *)OBJECT_GETDATA();
struct API_EXPRESSION result;
int rc = OBJECT_ERROR;
OBJECT_GETVALUE(&result);
if (result.errno == 0 && result.type == 'D') {
strcpy(objectData->prop_datevalue, DATE_DTOS(result.date));
rc = OBJECT_SUCCESS;
}
return(rc);
}
DEFINE_PROPERTYSET(clsMyClass, TimeValue)
{
struct example_data *objectData = (struct example_data *)OBJECT_GETDATA();
struct API_EXPRESSION result;
int rc = OBJECT_ERROR;
OBJECT_GETVALUE(&result);
if (result.errno == 0 && result.type == 'T') {
strcpy(objectData->prop_timevalue, DATE_TTOS(result.datetime));
rc = OBJECT_SUCCESS;
}
return(rc);
}
DEFINE_PROPERTYSET(clsMyClass, CurrValue)
{
struct example_data *objectData = (struct example_data *)OBJECT_GETDATA();
struct API_EXPRESSION result;
int rc = OBJECT_ERROR;
OBJECT_GETVALUE(&result);
if (result.errno == 0 && result.type == 'Y') {
strcpy(objectData->prop_currvalue, CURR_YTOS(result.currency));
rc = OBJECT_SUCCESS;
}
return(rc);
}
DEFINE_PROPERTYSET(clsMyClass, CharValue)
{
struct example_data *objectData = (struct example_data *)OBJECT_GETDATA();
struct API_EXPRESSION result;
int rc = OBJECT_ERROR;
OBJECT_GETVALUE(&result);
if (result.errno == 0 && result.type == 'C') {
strcpy(objectData->prop_currvalue, result.character);
rc = OBJECT_SUCCESS;
}
return(rc);
}
DEFINE_PROPERTYSET(clsMyClass, ObjValue)
{
struct example_data *objectData = (struct example_data *)OBJECT_GETDATA();
OBJECT objvalue;
int rc = OBJECT_ERROR;
if (OBJECT_GETTYPE() == 'O') {
objvalue = OBJECT_GETOBJECT();
objectData->prop_objvalue = OBJECT_ASSIGN(objvalue, objectData->object_name);
rc = OBJECT_SUCCESS;
}
return(rc);
}