mirror of
https://github.com/troydhanson/tpl.git
synced 2024-12-27 16:11:02 +08:00
1076 lines
25 KiB
HTML
1076 lines
25 KiB
HTML
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN"
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"http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
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<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en">
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<head>
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<meta http-equiv="Content-Type" content="application/xhtml+xml; charset=UTF-8" />
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<meta name="generator" content="AsciiDoc 8.6.8" />
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<title>tpl examples</title>
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<style type="text/css">
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/* Shared CSS for AsciiDoc xhtml11 and html5 backends */
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/* Default font. */
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body {
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font-family: Georgia,serif;
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}
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/* Title font. */
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h1, h2, h3, h4, h5, h6,
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div.title, caption.title,
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thead, p.table.header,
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#toctitle,
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#author, #revnumber, #revdate, #revremark,
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#footer {
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font-family: Arial,Helvetica,sans-serif;
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}
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body {
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margin: 1em 5% 1em 5%;
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}
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a {
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color: blue;
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text-decoration: underline;
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}
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a:visited {
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color: fuchsia;
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}
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em {
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font-style: italic;
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color: navy;
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}
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strong {
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font-weight: bold;
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color: #083194;
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}
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h1, h2, h3, h4, h5, h6 {
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color: #527bbd;
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margin-top: 1.2em;
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margin-bottom: 0.5em;
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line-height: 1.3;
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}
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h1, h2, h3 {
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border-bottom: 2px solid silver;
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}
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h2 {
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padding-top: 0.5em;
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}
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h3 {
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float: left;
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}
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h3 + * {
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clear: left;
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}
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h5 {
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font-size: 1.0em;
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}
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div.sectionbody {
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margin-left: 0;
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}
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hr {
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border: 1px solid silver;
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}
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p {
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margin-top: 0.5em;
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margin-bottom: 0.5em;
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}
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ul, ol, li > p {
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margin-top: 0;
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}
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ul > li { color: #aaa; }
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ul > li > * { color: black; }
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.monospaced, code, pre {
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font-family: "Courier New", Courier, monospace;
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font-size: inherit;
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color: navy;
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padding: 0;
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margin: 0;
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}
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#author {
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color: #527bbd;
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font-weight: bold;
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font-size: 1.1em;
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}
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#email {
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}
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#revnumber, #revdate, #revremark {
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}
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#footer {
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font-size: small;
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border-top: 2px solid silver;
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padding-top: 0.5em;
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margin-top: 4.0em;
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}
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#footer-text {
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float: left;
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padding-bottom: 0.5em;
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}
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#footer-badges {
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float: right;
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padding-bottom: 0.5em;
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}
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#preamble {
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margin-top: 1.5em;
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margin-bottom: 1.5em;
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}
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div.imageblock, div.exampleblock, div.verseblock,
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div.quoteblock, div.literalblock, div.listingblock, div.sidebarblock,
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div.admonitionblock {
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margin-top: 1.0em;
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margin-bottom: 1.5em;
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}
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div.admonitionblock {
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margin-top: 2.0em;
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margin-bottom: 2.0em;
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margin-right: 10%;
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color: #606060;
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}
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div.content { /* Block element content. */
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padding: 0;
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}
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/* Block element titles. */
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div.title, caption.title {
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color: #527bbd;
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font-weight: bold;
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text-align: left;
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margin-top: 1.0em;
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margin-bottom: 0.5em;
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}
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div.title + * {
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margin-top: 0;
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}
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td div.title:first-child {
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margin-top: 0.0em;
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}
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div.content div.title:first-child {
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margin-top: 0.0em;
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}
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div.content + div.title {
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margin-top: 0.0em;
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}
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div.sidebarblock > div.content {
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background: #ffffee;
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border: 1px solid #dddddd;
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border-left: 4px solid #f0f0f0;
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padding: 0.5em;
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}
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div.listingblock > div.content {
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border: 1px solid #dddddd;
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border-left: 5px solid #f0f0f0;
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background: #f8f8f8;
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padding: 0.5em;
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}
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div.quoteblock, div.verseblock {
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padding-left: 1.0em;
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margin-left: 1.0em;
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margin-right: 10%;
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border-left: 5px solid #f0f0f0;
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color: #888;
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}
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div.quoteblock > div.attribution {
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padding-top: 0.5em;
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text-align: right;
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}
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div.verseblock > pre.content {
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font-family: inherit;
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font-size: inherit;
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}
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div.verseblock > div.attribution {
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padding-top: 0.75em;
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text-align: left;
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}
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/* DEPRECATED: Pre version 8.2.7 verse style literal block. */
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div.verseblock + div.attribution {
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text-align: left;
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}
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div.admonitionblock .icon {
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vertical-align: top;
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font-size: 1.1em;
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font-weight: bold;
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text-decoration: underline;
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color: #527bbd;
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padding-right: 0.5em;
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}
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div.admonitionblock td.content {
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padding-left: 0.5em;
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border-left: 3px solid #dddddd;
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}
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div.exampleblock > div.content {
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border-left: 3px solid #dddddd;
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padding-left: 0.5em;
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}
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div.imageblock div.content { padding-left: 0; }
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span.image img { border-style: none; vertical-align: text-bottom; }
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a.image:visited { color: white; }
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dl {
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margin-top: 0.8em;
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margin-bottom: 0.8em;
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}
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dt {
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margin-top: 0.5em;
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margin-bottom: 0;
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font-style: normal;
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color: navy;
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}
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dd > *:first-child {
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margin-top: 0.1em;
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}
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ul, ol {
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list-style-position: outside;
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}
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ol.arabic {
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list-style-type: decimal;
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}
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ol.loweralpha {
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list-style-type: lower-alpha;
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}
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ol.upperalpha {
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list-style-type: upper-alpha;
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}
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ol.lowerroman {
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list-style-type: lower-roman;
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}
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ol.upperroman {
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list-style-type: upper-roman;
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}
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div.compact ul, div.compact ol,
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div.compact p, div.compact p,
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div.compact div, div.compact div {
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margin-top: 0.1em;
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margin-bottom: 0.1em;
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}
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tfoot {
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font-weight: bold;
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}
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td > div.verse {
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white-space: pre;
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}
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div.hdlist {
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margin-top: 0.8em;
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margin-bottom: 0.8em;
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}
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div.hdlist tr {
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padding-bottom: 15px;
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}
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dt.hdlist1.strong, td.hdlist1.strong {
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font-weight: bold;
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}
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td.hdlist1 {
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vertical-align: top;
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font-style: normal;
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padding-right: 0.8em;
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color: navy;
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}
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td.hdlist2 {
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vertical-align: top;
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}
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div.hdlist.compact tr {
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margin: 0;
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padding-bottom: 0;
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}
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.comment {
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background: yellow;
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}
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.footnote, .footnoteref {
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font-size: 0.8em;
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}
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span.footnote, span.footnoteref {
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vertical-align: super;
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}
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#footnotes {
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margin: 20px 0 20px 0;
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padding: 7px 0 0 0;
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}
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#footnotes div.footnote {
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margin: 0 0 5px 0;
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}
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#footnotes hr {
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border: none;
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border-top: 1px solid silver;
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height: 1px;
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text-align: left;
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margin-left: 0;
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width: 20%;
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min-width: 100px;
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}
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div.colist td {
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padding-right: 0.5em;
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padding-bottom: 0.3em;
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vertical-align: top;
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}
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div.colist td img {
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margin-top: 0.3em;
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}
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@media print {
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#footer-badges { display: none; }
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}
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#toc {
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margin-bottom: 2.5em;
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}
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#toctitle {
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color: #527bbd;
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font-size: 1.1em;
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font-weight: bold;
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margin-top: 1.0em;
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margin-bottom: 0.1em;
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}
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div.toclevel0, div.toclevel1, div.toclevel2, div.toclevel3, div.toclevel4 {
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margin-top: 0;
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margin-bottom: 0;
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}
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div.toclevel2 {
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margin-left: 2em;
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font-size: 0.9em;
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}
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div.toclevel3 {
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margin-left: 4em;
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font-size: 0.9em;
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}
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div.toclevel4 {
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margin-left: 6em;
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font-size: 0.9em;
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}
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span.aqua { color: aqua; }
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span.black { color: black; }
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span.blue { color: blue; }
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span.fuchsia { color: fuchsia; }
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span.gray { color: gray; }
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span.green { color: green; }
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span.lime { color: lime; }
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span.maroon { color: maroon; }
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span.navy { color: navy; }
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span.olive { color: olive; }
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span.purple { color: purple; }
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span.red { color: red; }
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span.silver { color: silver; }
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span.teal { color: teal; }
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span.white { color: white; }
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span.yellow { color: yellow; }
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span.aqua-background { background: aqua; }
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span.black-background { background: black; }
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span.blue-background { background: blue; }
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span.fuchsia-background { background: fuchsia; }
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span.gray-background { background: gray; }
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span.green-background { background: green; }
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span.lime-background { background: lime; }
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span.maroon-background { background: maroon; }
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span.navy-background { background: navy; }
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span.olive-background { background: olive; }
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span.purple-background { background: purple; }
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span.red-background { background: red; }
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span.silver-background { background: silver; }
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span.teal-background { background: teal; }
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span.white-background { background: white; }
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span.yellow-background { background: yellow; }
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span.big { font-size: 2em; }
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span.small { font-size: 0.6em; }
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span.underline { text-decoration: underline; }
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span.overline { text-decoration: overline; }
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span.line-through { text-decoration: line-through; }
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div.unbreakable { page-break-inside: avoid; }
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/*
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* xhtml11 specific
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*
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* */
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div.tableblock {
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margin-top: 1.0em;
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margin-bottom: 1.5em;
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}
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div.tableblock > table {
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border: 3px solid #527bbd;
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}
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thead, p.table.header {
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font-weight: bold;
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color: #527bbd;
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}
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p.table {
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margin-top: 0;
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}
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/* Because the table frame attribute is overriden by CSS in most browsers. */
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div.tableblock > table[frame="void"] {
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border-style: none;
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}
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div.tableblock > table[frame="hsides"] {
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border-left-style: none;
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border-right-style: none;
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}
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div.tableblock > table[frame="vsides"] {
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border-top-style: none;
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border-bottom-style: none;
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}
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/*
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* html5 specific
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*
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* */
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table.tableblock {
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margin-top: 1.0em;
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margin-bottom: 1.5em;
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}
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thead, p.tableblock.header {
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font-weight: bold;
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color: #527bbd;
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}
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p.tableblock {
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margin-top: 0;
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}
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table.tableblock {
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border-width: 3px;
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border-spacing: 0px;
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border-style: solid;
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border-color: #527bbd;
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border-collapse: collapse;
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}
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th.tableblock, td.tableblock {
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border-width: 1px;
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padding: 4px;
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border-style: solid;
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border-color: #527bbd;
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}
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table.tableblock.frame-topbot {
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border-left-style: hidden;
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border-right-style: hidden;
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}
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table.tableblock.frame-sides {
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border-top-style: hidden;
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border-bottom-style: hidden;
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}
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table.tableblock.frame-none {
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border-style: hidden;
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}
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th.tableblock.halign-left, td.tableblock.halign-left {
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text-align: left;
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}
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th.tableblock.halign-center, td.tableblock.halign-center {
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text-align: center;
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}
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th.tableblock.halign-right, td.tableblock.halign-right {
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text-align: right;
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}
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th.tableblock.valign-top, td.tableblock.valign-top {
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vertical-align: top;
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}
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th.tableblock.valign-middle, td.tableblock.valign-middle {
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vertical-align: middle;
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}
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th.tableblock.valign-bottom, td.tableblock.valign-bottom {
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vertical-align: bottom;
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}
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/*
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* manpage specific
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*
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* */
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body.manpage h1 {
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padding-top: 0.5em;
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padding-bottom: 0.5em;
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border-top: 2px solid silver;
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border-bottom: 2px solid silver;
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}
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body.manpage h2 {
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border-style: none;
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}
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body.manpage div.sectionbody {
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margin-left: 3em;
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}
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@media print {
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body.manpage div#toc { display: none; }
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}
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|
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@media screen {
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body {
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max-width: 50em; /* approximately 80 characters wide */
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margin-left: 16em;
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}
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#toc {
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position: fixed;
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top: 0;
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left: 0;
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bottom: 0;
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width: 13em;
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padding: 0.5em;
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padding-bottom: 1.5em;
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margin: 0;
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overflow: auto;
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border-right: 3px solid #f8f8f8;
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background-color: white;
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}
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#toc .toclevel1 {
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margin-top: 0.5em;
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}
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#toc .toclevel2 {
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margin-top: 0.25em;
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display: list-item;
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color: #aaaaaa;
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}
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#toctitle {
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margin-top: 0.5em;
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}
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}
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</style>
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<script type="text/javascript">
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/*<+'])');
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// Function that scans the DOM tree for header elements (the DOM2
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|
// nodeIterator API would be a better technique but not supported by all
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// browsers).
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|
var iterate = function (el) {
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for (var i = el.firstChild; i != null; i = i.nextSibling) {
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if (i.nodeType == 1 /* Node.ELEMENT_NODE */) {
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var mo = re.exec(i.tagName);
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if (mo && (i.getAttribute("class") || i.getAttribute("className")) != "float") {
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result[result.length] = new TocEntry(i, getText(i), mo[1]-1);
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}
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iterate(i);
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}
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}
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}
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iterate(el);
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return result;
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}
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|
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var toc = document.getElementById("toc");
|
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if (!toc) {
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return;
|
|
}
|
|
|
|
// Delete existing TOC entries in case we're reloading the TOC.
|
|
var tocEntriesToRemove = [];
|
|
var i;
|
|
for (i = 0; i < toc.childNodes.length; i++) {
|
|
var entry = toc.childNodes[i];
|
|
if (entry.nodeName.toLowerCase() == 'div'
|
|
&& entry.getAttribute("class")
|
|
&& entry.getAttribute("class").match(/^toclevel/))
|
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tocEntriesToRemove.push(entry);
|
|
}
|
|
for (i = 0; i < tocEntriesToRemove.length; i++) {
|
|
toc.removeChild(tocEntriesToRemove[i]);
|
|
}
|
|
|
|
// Rebuild TOC entries.
|
|
var entries = tocEntries(document.getElementById("content"), toclevels);
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|
for (var i = 0; i < entries.length; ++i) {
|
|
var entry = entries[i];
|
|
if (entry.element.id == "")
|
|
entry.element.id = "_toc_" + i;
|
|
var a = document.createElement("a");
|
|
a.href = "#" + entry.element.id;
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|
a.appendChild(document.createTextNode(entry.text));
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|
var div = document.createElement("div");
|
|
div.appendChild(a);
|
|
div.className = "toclevel" + entry.toclevel;
|
|
toc.appendChild(div);
|
|
}
|
|
if (entries.length == 0)
|
|
toc.parentNode.removeChild(toc);
|
|
},
|
|
|
|
|
|
/////////////////////////////////////////////////////////////////////
|
|
// Footnotes generator
|
|
/////////////////////////////////////////////////////////////////////
|
|
|
|
/* Based on footnote generation code from:
|
|
* http://www.brandspankingnew.net/archive/2005/07/format_footnote.html
|
|
*/
|
|
|
|
footnotes: function () {
|
|
// Delete existing footnote entries in case we're reloading the footnodes.
|
|
var i;
|
|
var noteholder = document.getElementById("footnotes");
|
|
if (!noteholder) {
|
|
return;
|
|
}
|
|
var entriesToRemove = [];
|
|
for (i = 0; i < noteholder.childNodes.length; i++) {
|
|
var entry = noteholder.childNodes[i];
|
|
if (entry.nodeName.toLowerCase() == 'div' && entry.getAttribute("class") == "footnote")
|
|
entriesToRemove.push(entry);
|
|
}
|
|
for (i = 0; i < entriesToRemove.length; i++) {
|
|
noteholder.removeChild(entriesToRemove[i]);
|
|
}
|
|
|
|
// Rebuild footnote entries.
|
|
var cont = document.getElementById("content");
|
|
var spans = cont.getElementsByTagName("span");
|
|
var refs = {};
|
|
var n = 0;
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|
|
n++;
|
|
var note = spans[i].getAttribute("data-note");
|
|
if (!note) {
|
|
// Use [\s\S] in place of . so multi-line matches work.
|
|
// Because JavaScript has no s (dotall) regex flag.
|
|
note = spans[i].innerHTML.match(/\s*\[([\s\S]*)]\s*/)[1];
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|
spans[i].innerHTML =
|
|
"[<a id='_footnoteref_" + n + "' href='#_footnote_" + n +
|
|
"' title='View footnote' class='footnote'>" + n + "</a>]";
|
|
spans[i].setAttribute("data-note", note);
|
|
}
|
|
noteholder.innerHTML +=
|
|
"<div class='footnote' id='_footnote_" + n + "'>" +
|
|
"<a href='#_footnoteref_" + n + "' title='Return to text'>" +
|
|
n + "</a>. " + note + "</div>";
|
|
var id =spans[i].getAttribute("id");
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|
if (id != null) refs["#"+id] = n;
|
|
}
|
|
}
|
|
if (n == 0)
|
|
noteholder.parentNode.removeChild(noteholder);
|
|
else {
|
|
// Process footnoterefs.
|
|
for (i=0; i<spans.length; i++) {
|
|
if (spans[i].className == "footnoteref") {
|
|
var href = spans[i].getElementsByTagName("a")[0].getAttribute("href");
|
|
href = href.match(/#.*/)[0]; // Because IE return full URL.
|
|
n = refs[href];
|
|
spans[i].innerHTML =
|
|
"[<a href='#_footnote_" + n +
|
|
"' title='View footnote' class='footnote'>" + n + "</a>]";
|
|
}
|
|
}
|
|
}
|
|
},
|
|
|
|
install: function(toclevels) {
|
|
var timerId;
|
|
|
|
function reinstall() {
|
|
asciidoc.footnotes();
|
|
if (toclevels) {
|
|
asciidoc.toc(toclevels);
|
|
}
|
|
}
|
|
|
|
function reinstallAndRemoveTimer() {
|
|
clearInterval(timerId);
|
|
reinstall();
|
|
}
|
|
|
|
timerId = setInterval(reinstall, 500);
|
|
if (document.addEventListener)
|
|
document.addEventListener("DOMContentLoaded", reinstallAndRemoveTimer, false);
|
|
else
|
|
window.onload = reinstallAndRemoveTimer;
|
|
}
|
|
|
|
}
|
|
asciidoc.install(2);
|
|
/*]]>*/
|
|
</script>
|
|
</head>
|
|
<body class="article">
|
|
<div id="header">
|
|
<h1>tpl examples</h1>
|
|
<span id="author">Troy D. Hanson</span><br />
|
|
<span id="email"><code><<a href="mailto:tdh@tkhanson.net">tdh@tkhanson.net</a>></code></span><br />
|
|
<span id="revnumber">version 1.0,</span>
|
|
<span id="revdate">October 2006</span>
|
|
<div id="toc">
|
|
<div id="toctitle">Table of Contents</div>
|
|
<noscript><p><b>JavaScript must be enabled in your browser to display the table of contents.</b></p></noscript>
|
|
</div>
|
|
</div>
|
|
<div id="content">
|
|
<div class="sect1">
|
|
<h2 id="_examples">Examples</h2>
|
|
<div class="sectionbody">
|
|
<div class="paragraph"><p>This document is a set of representative examples demonstrating how to use
|
|
tpl. If you’re looking for a more explanatory document, please read the
|
|
<a href="userguide.html">User Guide</a>.</p></div>
|
|
<div class="sect2">
|
|
<h3 id="_an_integer_array">An integer array</h3>
|
|
<div class="listingblock">
|
|
<div class="title">Storing an array of integers to file</div>
|
|
<div class="content">
|
|
<pre><code>#include "tpl.h"
|
|
|
|
int main() {
|
|
tpl_node *tn;
|
|
int i;
|
|
|
|
tn = tpl_map( "A(i)", &i );
|
|
for( i=0; i<10; i++ ) {
|
|
tpl_pack( tn, 1 );
|
|
}
|
|
tpl_dump( tn, TPL_FILE, "demo.tpl" );
|
|
tpl_free( tn );
|
|
}</code></pre>
|
|
</div></div>
|
|
<div class="paragraph"><p>A program that unpacks this tpl data file is shown below.</p></div>
|
|
<div class="listingblock">
|
|
<div class="title">Re-reading an array of integers from file</div>
|
|
<div class="content">
|
|
<pre><code>#include <stdio.h>
|
|
#include "tpl.h"
|
|
|
|
int main() {
|
|
tpl_node *tn;
|
|
int i;
|
|
|
|
tn = tpl_map( "A(i)", &i );
|
|
tpl_load( tn, TPL_FILE, "demo.tpl" );
|
|
while (tpl_unpack( tn, 1 ) > 0) {
|
|
printf("%d ", i);
|
|
}
|
|
tpl_free( tn );
|
|
}</code></pre>
|
|
</div></div>
|
|
<div class="paragraph"><p>When run, this program prints:</p></div>
|
|
<div class="literalblock">
|
|
<div class="content">
|
|
<pre><code>0 1 2 3 4 5 6 7 8 9</code></pre>
|
|
</div></div>
|
|
</div>
|
|
<div class="sect2">
|
|
<h3 id="_a_nested_array">A nested array</h3>
|
|
<div class="listingblock">
|
|
<div class="title">Packing nested arrays</div>
|
|
<div class="content">
|
|
<pre><code>#include "tpl.h"
|
|
|
|
int main() {
|
|
char c;
|
|
tpl_node *tn;
|
|
|
|
tn = tpl_map("A(A(c))", &c);
|
|
|
|
for(c='a'; c<'c'; c++) tpl_pack(tn,2);
|
|
tpl_pack(tn, 1);
|
|
|
|
for(c='1'; c<'4'; c++) tpl_pack(tn,2);
|
|
tpl_pack(tn, 1);
|
|
|
|
tpl_dump(tn, TPL_FILE, "test40.tpl");
|
|
tpl_free(tn);
|
|
}</code></pre>
|
|
</div></div>
|
|
<div class="paragraph"><p>This creates a nested array in which the parent has two elements: the first
|
|
element is the two-element nested array <em>a</em>, <em>b</em>; and the second element is
|
|
the three-element nested array <em>1</em>, <em>2</em>, <em>3</em>.</p></div>
|
|
<div class="listingblock">
|
|
<div class="title">Unpacking nested arrays</div>
|
|
<div class="content">
|
|
<pre><code>#include "tpl.h"
|
|
#include <stdio.h>
|
|
|
|
int main() {
|
|
char c;
|
|
tpl_node *tn;
|
|
|
|
tn = tpl_map("A(A(c))", &c);
|
|
|
|
tpl_load(tn, TPL_FILE, "test40.tpl");
|
|
while (tpl_unpack(tn,1) > 0) {
|
|
while (tpl_unpack(tn,2) > 0) printf("%c ",c);
|
|
printf("\n");
|
|
}
|
|
tpl_free(tn);
|
|
}</code></pre>
|
|
</div></div>
|
|
<div class="paragraph"><p>When run, this program prints:</p></div>
|
|
<div class="literalblock">
|
|
<div class="content">
|
|
<pre><code>a b
|
|
1 2 3</code></pre>
|
|
</div></div>
|
|
</div>
|
|
<div class="sect2">
|
|
<h3 id="_a_string_array">A string array</h3>
|
|
<div class="listingblock">
|
|
<div class="title">Packing a string array</div>
|
|
<div class="content">
|
|
<pre><code> #include "tpl.h"
|
|
|
|
int main() {
|
|
tpl_node *tn;
|
|
char *s;
|
|
|
|
tn = tpl_map( "A(s)", &s );
|
|
|
|
s = "bob";
|
|
tpl_pack(tn, 1);
|
|
|
|
s = "betty";
|
|
tpl_pack(tn, 1);
|
|
|
|
tpl_dump(tn, TPL_FILE, "strings.tpl");
|
|
tpl_free(tn);
|
|
}</code></pre>
|
|
</div></div>
|
|
<div class="listingblock">
|
|
<div class="title">Unpacking a string array</div>
|
|
<div class="content">
|
|
<pre><code> #include <stdio.h>
|
|
#include "tpl.h"
|
|
|
|
int main() {
|
|
tpl_node *tn;
|
|
char *s;
|
|
|
|
tn = tpl_map( "A(s)", &s );
|
|
tpl_load( tn, TPL_FILE, "strings.tpl" );
|
|
|
|
while (tpl_unpack( tn, 1 ) > 0) {
|
|
printf("%s\n", s);
|
|
free(s); /* important! */
|
|
}
|
|
|
|
tpl_free(tn);
|
|
}</code></pre>
|
|
</div></div>
|
|
<div class="paragraph"><p>When run, this program prints:</p></div>
|
|
<div class="literalblock">
|
|
<div class="content">
|
|
<pre><code>bob
|
|
betty</code></pre>
|
|
</div></div>
|
|
</div>
|
|
<div class="sect2">
|
|
<h3 id="_integer_string_pairs">Integer/string pairs</h3>
|
|
<div class="listingblock">
|
|
<div class="title">Packing integer/string pairs</div>
|
|
<div class="content">
|
|
<pre><code>#include "tpl.h"
|
|
|
|
int main(int argc, char *argv[]) {
|
|
tpl_node *tn;
|
|
int id;
|
|
char *name, *names[] = { "joe", "bob", "mary" };
|
|
|
|
tn = tpl_map("A(is)", &id, &name);
|
|
|
|
for(id=0,name=names[id]; id < 3; name=names[++id])
|
|
tpl_pack(tn,1);
|
|
|
|
tpl_dump(tn, TPL_FILE, "/tmp/test35.tpl");
|
|
tpl_free(tn);
|
|
}</code></pre>
|
|
</div></div>
|
|
<div class="listingblock">
|
|
<div class="title">Unpacking integer/string pairs</div>
|
|
<div class="content">
|
|
<pre><code>#include <stdio.h>
|
|
#include "tpl.h"
|
|
|
|
int main(int argc, char *argv[]) {
|
|
tpl_node *tn;
|
|
int id;
|
|
char *name;
|
|
|
|
tn = tpl_map("A(is)", &id, &name);
|
|
tpl_load(tn, TPL_FILE, "/tmp/test35.tpl");
|
|
|
|
while ( tpl_unpack(tn,1) > 0 )
|
|
printf("id %d, user %s\n", id, name);
|
|
|
|
tpl_free(tn);
|
|
}</code></pre>
|
|
</div></div>
|
|
<div class="paragraph"><p>When run, this program prints:</p></div>
|
|
<div class="literalblock">
|
|
<div class="content">
|
|
<pre><code>id 0, user joe
|
|
id 1, user bob
|
|
id 2, user mary</code></pre>
|
|
</div></div>
|
|
</div>
|
|
<div class="sect2">
|
|
<h3 id="_a_binary_buffer">A binary buffer</h3>
|
|
<div class="listingblock">
|
|
<div class="title">Packing a binary buffer</div>
|
|
<div class="content">
|
|
<pre><code> #include "tpl.h"
|
|
#include <sys/time.h>
|
|
|
|
int main() {
|
|
tpl_node *tn;
|
|
tpl_bin tb;
|
|
struct timeval tv; /* we'll pack this structure as raw binary */
|
|
gettimeofday(&tv,NULL); /* populate the structure with some data */
|
|
|
|
tn = tpl_map( "B", &tb );
|
|
tb.sz = sizeof(struct timeval);
|
|
tb.addr = &tv;
|
|
tpl_pack( tn, 0 );
|
|
|
|
tpl_dump(tn, TPL_FILE, "bin.tpl");
|
|
tpl_free(tn);
|
|
}</code></pre>
|
|
</div></div>
|
|
<div class="listingblock">
|
|
<div class="title">Unpacking a binary buffer</div>
|
|
<div class="content">
|
|
<pre><code> #include "tpl.h"
|
|
|
|
int main() {
|
|
tpl_node *tn;
|
|
tpl_bin tb;
|
|
|
|
tn = tpl_map( "B", &tb );
|
|
tpl_load( tn, TPL_FILE, "bin.tpl" );
|
|
|
|
tpl_unpack( tn, 0 );
|
|
printf("binary buffer of length %d at address %p\n", tb.sz, tb.addr);
|
|
free(tb.addr); /* important! */
|
|
|
|
tpl_free(tn);
|
|
}</code></pre>
|
|
</div></div>
|
|
</div>
|
|
<div class="sect2">
|
|
<h3 id="_simple_pipe_ipc">Simple pipe IPC</h3>
|
|
<div class="paragraph"><p>This is a simple example of inter-process communication (IPC) over a pipe.</p></div>
|
|
<div class="listingblock">
|
|
<div class="title">IPC over a pipe</div>
|
|
<div class="content">
|
|
<pre><code>int main() {
|
|
tpl_node *tn;
|
|
unsigned i, sum=0;
|
|
int fd[2], pid;
|
|
|
|
pipe(fd);
|
|
if ( (pid = fork()) == 0) { /* child */
|
|
|
|
tn = tpl_map("A(u)",&i);
|
|
tpl_load(tn, TPL_FD, fd[0]);
|
|
while (tpl_unpack(tn,1) > 0) sum += i;
|
|
tpl_free(tn);
|
|
printf("sum is %d\n", sum);
|
|
|
|
} else if (pid > 0) { /* parent */
|
|
|
|
tn = tpl_map("A(u)",&i);
|
|
for(i=0;i<10000;i++) tpl_pack(tn,1);
|
|
tpl_dump(tn,TPL_FD, fd[1] );
|
|
tpl_free(tn);
|
|
|
|
waitpid(pid,NULL,0);
|
|
}
|
|
}</code></pre>
|
|
</div></div>
|
|
<div class="paragraph"><p>The child unpacks the integers in the message, and sums them, printing:</p></div>
|
|
<div class="literalblock">
|
|
<div class="content">
|
|
<pre><code>49995000</code></pre>
|
|
</div></div>
|
|
<div class="paragraph"><p>The example above (with <code>#include</code> headers omitted here) is included in the
|
|
file <code>tests/test28.c</code>.</p></div>
|
|
</div>
|
|
</div>
|
|
</div>
|
|
</div>
|
|
<div id="footnotes"><hr /></div>
|
|
<div id="footer">
|
|
<div id="footer-text">
|
|
Version 1.0<br />
|
|
Last updated 2013-03-12 17:20:12 EDT
|
|
</div>
|
|
</div>
|
|
</body>
|
|
</html>
|