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18 lines
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<!DOCTYPE html><html lang="en"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><meta name="generator" content="rustdoc"><meta name="description" content="ZSTD_CCtx_setPledgedSrcSize() : Total input data size to be compressed as a single frame. Value will be written in frame header, unless if explicitly forbidden using ZSTD_c_contentSizeFlag. This value will also be controlled at end of frame, and trigger an error if not respected. @result : 0, or an error code (which can be tested with ZSTD_isError()). Note 1 : pledgedSrcSize==0 actually means zero, aka an empty frame. In order to mean “unknown content size”, pass constant ZSTD_CONTENTSIZE_UNKNOWN. ZSTD_CONTENTSIZE_UNKNOWN is default value for any new frame. Note 2 : pledgedSrcSize is only valid once, for the next frame. It’s discarded at the end of the frame, and replaced by ZSTD_CONTENTSIZE_UNKNOWN. Note 3 : Whenever all input data is provided and consumed in a single round, for example with ZSTD_compress2(), or invoking immediately ZSTD_compressStream2(,,,ZSTD_e_end), this value is automatically overridden by srcSize instead."><meta name="keywords" content="rust, rustlang, rust-lang, ZSTD_CCtx_setPledgedSrcSize"><title>ZSTD_CCtx_setPledgedSrcSize in zstd_sys - Rust</title><link rel="preload" as="font" type="font/woff2" crossorigin href="../SourceSerif4-Regular.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../FiraSans-Regular.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../FiraSans-Medium.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../SourceCodePro-Regular.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../SourceSerif4-Bold.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../SourceCodePro-Semibold.ttf.woff2"><link rel="stylesheet" type="text/css" href="../normalize.css"><link rel="stylesheet" type="text/css" href="../rustdoc.css" id="mainThemeStyle"><link rel="stylesheet" type="text/css" href="../ayu.css" disabled><link rel="stylesheet" type="text/css" href="../dark.css" disabled><link rel="stylesheet" type="text/css" href="../light.css" id="themeStyle"><script id="default-settings" ></script><script src="../storage.js"></script><script src="../crates.js"></script><script defer src="../main.js"></script>
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</a><div class="sidebar-elems"><h2 class="location">Other items in<br><a href="index.html">zstd_sys</a></h2><div id="sidebar-vars" data-name="ZSTD_CCtx_setPledgedSrcSize" data-ty="fn" data-relpath=""></div><script defer src="sidebar-items.js"></script></div></nav><main><div class="width-limiter"><div class="sub-container"><a class="sub-logo-container" href="../zstd_sys/index.html"><img class="rust-logo" src="../rust-logo.png" alt="logo"></a><nav class="sub"><div class="theme-picker"><button id="theme-picker" aria-label="Pick another theme!" aria-haspopup="menu" title="themes"><img width="18" height="18" alt="Pick another theme!" src="../brush.svg"></button><div id="theme-choices" role="menu"></div></div><form class="search-form"><div class="search-container"><div><select id="crate-search"><option value="All crates">All crates</option></select><input class="search-input" name="search" autocomplete="off" spellcheck="false" placeholder="Click or press ‘S’ to search, ‘?’ for more options…" type="search"></div><button type="button" id="help-button" title="help">?</button><a id="settings-menu" href="../settings.html" title="settings"><img width="18" height="18" alt="Change settings" src="../wheel.svg"></a></div></form></nav></div><section id="main-content" class="content"><h1 class="fqn"><span class="in-band">Function <a href="index.html">zstd_sys</a>::<wbr><a class="fn" href="#">ZSTD_CCtx_setPledgedSrcSize</a><button id="copy-path" onclick="copy_path(this)" title="Copy item path to clipboard"><img src="../clipboard.svg" width="19" height="18" alt="Copy item path"></button></span><span class="out-of-band"><span id="render-detail"><a id="toggle-all-docs" href="javascript:void(0)" title="collapse all docs">[<span class="inner">−</span>]</a></span><a class="srclink" href="../src/zstd_sys/bindings_std.rs.html#412-415" title="goto source code">[src]</a></span></h1><div class="docblock item-decl"><pre class="rust fn"><code>pub unsafe extern "C" fn ZSTD_CCtx_setPledgedSrcSize(<br> cctx: <a class="primitive" href="https://doc.rust-lang.org/1.59.0/std/primitive.pointer.html">*mut </a><a class="type" href="type.ZSTD_CCtx.html" title="type zstd_sys::ZSTD_CCtx">ZSTD_CCtx</a>, <br> pledgedSrcSize: <a class="type" href="https://doc.rust-lang.org/1.59.0/std/os/raw/type.c_ulonglong.html" title="type std::os::raw::c_ulonglong">c_ulonglong</a><br>) -> <a class="primitive" href="https://doc.rust-lang.org/1.59.0/std/primitive.usize.html">usize</a></code></pre></div><details class="rustdoc-toggle top-doc" open><summary class="hideme"><span>Expand description</span></summary><div class="docblock"><p>ZSTD_CCtx_setPledgedSrcSize() :
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Total input data size to be compressed as a single frame.
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Value will be written in frame header, unless if explicitly forbidden using ZSTD_c_contentSizeFlag.
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This value will also be controlled at end of frame, and trigger an error if not respected.
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@result : 0, or an error code (which can be tested with ZSTD_isError()).
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Note 1 : pledgedSrcSize==0 actually means zero, aka an empty frame.
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In order to mean “unknown content size”, pass constant ZSTD_CONTENTSIZE_UNKNOWN.
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ZSTD_CONTENTSIZE_UNKNOWN is default value for any new frame.
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Note 2 : pledgedSrcSize is only valid once, for the next frame.
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It’s discarded at the end of the frame, and replaced by ZSTD_CONTENTSIZE_UNKNOWN.
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Note 3 : Whenever all input data is provided and consumed in a single round,
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for example with ZSTD_compress2(),
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or invoking immediately ZSTD_compressStream2(,,,ZSTD_e_end),
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this value is automatically overridden by srcSize instead.</p>
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