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| author | hunt <hunt> | 2005-04-07 21:48:47 +0000 |
|---|---|---|
| committer | hunt <hunt> | 2005-04-07 21:48:47 +0000 |
| commit | 655ee2825121e149a9976e562946892efb20aea1 (patch) | |
| tree | 91b9b4cc46aeee50e9d789689bea0b96e11ceba1 /runtime/docs/html/alloc_8h-source.html | |
| parent | 3d4bc8bea6b45893bd4b49f44df26bd602b4cba5 (diff) | |
| download | systemtap-steved-655ee2825121e149a9976e562946892efb20aea1.tar.gz systemtap-steved-655ee2825121e149a9976e562946892efb20aea1.tar.xz systemtap-steved-655ee2825121e149a9976e562946892efb20aea1.zip | |
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| -rw-r--r-- | runtime/docs/html/alloc_8h-source.html | 85 |
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diff --git a/runtime/docs/html/alloc_8h-source.html b/runtime/docs/html/alloc_8h-source.html deleted file mode 100644 index 551deccd..00000000 --- a/runtime/docs/html/alloc_8h-source.html +++ /dev/null @@ -1,85 +0,0 @@ -<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> -<html><head><meta http-equiv="Content-Type" content="text/html;charset=iso-8859-1"> -<title>SystemTap: alloc.h Source File</title> -<link href="doxygen.css" rel="stylesheet" type="text/css"> -</head><body> -<!-- Generated by Doxygen 1.4.1 --> -<div class="qindex"><a class="qindex" href="index.html">Main Page</a> | <a class="qindex" href="modules.html">Modules</a> | <a class="qindex" href="annotated.html">Data Structures</a> | <a class="qindex" href="dirs.html">Directories</a> | <a class="qindex" href="files.html">File List</a> | <a class="qindex" href="functions.html">Data Fields</a> | <a class="qindex" href="globals.html">Globals</a> | <a class="qindex" href="pages.html">Related Pages</a></div> -<h1>alloc.h</h1><a href="alloc_8h.html">Go to the documentation of this file.</a><div class="fragment"><pre class="fragment">00001 <span class="comment">/* -*- linux-c -*- */</span><span class="comment"></span> -00002 <span class="comment">/** @file alloc.h</span> -00003 <span class="comment"> * @brief Memory allocation functions.</span> -00004 <span class="comment"> * @todo Should really be alloc.c for consistency.</span> -00005 <span class="comment"> */</span> -00006 -00007 <span class="keyword">enum</span> errorcode { ERR_NONE=0, ERR_NO_MEM }; -00008 <span class="keyword">enum</span> errorcode _stp_error = ERR_NONE; -00009 <span class="comment"></span> -00010 <span class="comment">/** Allocates memory within a probe.</span> -00011 <span class="comment"> * This is used for small allocations from within a running</span> -00012 <span class="comment"> * probe where the process cannot sleep. </span> -00013 <span class="comment"> * @param len Number of bytes to allocate.</span> -00014 <span class="comment"> * @return a valid pointer on success or NULL on failure.</span> -00015 <span class="comment"> * @bug Currently uses kmalloc (GFP_ATOMIC).</span> -00016 <span class="comment"> */</span> -00017 -<a name="l00018"></a><a class="code" href="alloc_8h.html#a3">00018</a> <span class="keywordtype">void</span> *<a class="code" href="alloc_8h.html#a3">_stp_alloc</a>(size_t len) -00019 { -00020 <span class="keywordtype">void</span> *ptr = kmalloc(len, GFP_ATOMIC); -00021 <span class="keywordflow">if</span> (unlikely(ptr == NULL)) -00022 _stp_error = ERR_NO_MEM; -00023 <span class="keywordflow">return</span> ptr; -00024 } -00025 <span class="comment"></span> -00026 <span class="comment">/** Allocates and clears memory within a probe.</span> -00027 <span class="comment"> * This is used for small allocations from within a running</span> -00028 <span class="comment"> * probe where the process cannot sleep. </span> -00029 <span class="comment"> * @param len Number of bytes to allocate.</span> -00030 <span class="comment"> * @return a valid pointer on success or NULL on failure.</span> -00031 <span class="comment"> * @bug Currently uses kmalloc (GFP_ATOMIC).</span> -00032 <span class="comment"> */</span> -00033 -<a name="l00034"></a><a class="code" href="alloc_8h.html#a4">00034</a> <span class="keywordtype">void</span> *<a class="code" href="alloc_8h.html#a4">_stp_calloc</a>(size_t len) -00035 { -00036 <span class="keywordtype">void</span> *ptr = <a class="code" href="alloc_8h.html#a3">_stp_alloc</a>(len); -00037 <span class="keywordflow">if</span> (likely(ptr)) -00038 memset(ptr, 0, len); -00039 <span class="keywordflow">return</span> ptr; -00040 } -00041 <span class="comment"></span> -00042 <span class="comment">/** Allocates and clears memory outside a probe.</span> -00043 <span class="comment"> * This is typically used in the module initialization to</span> -00044 <span class="comment"> * allocate new maps, lists, etc.</span> -00045 <span class="comment"> * @param len Number of bytes to allocate.</span> -00046 <span class="comment"> * @return a valid pointer on success or NULL on failure.</span> -00047 <span class="comment"> */</span> -00048 -<a name="l00049"></a><a class="code" href="alloc_8h.html#a5">00049</a> <span class="keywordtype">void</span> *<a class="code" href="alloc_8h.html#a5">_stp_valloc</a>(size_t len) -00050 { -00051 <span class="keywordtype">void</span> *ptr = vmalloc(len); -00052 <span class="keywordflow">if</span> (likely(ptr)) -00053 memset(ptr, 0, len); -00054 <span class="keywordflow">else</span> -00055 _stp_error = ERR_NO_MEM; -00056 <span class="keywordflow">return</span> ptr; -00057 } -00058 <span class="comment"></span> -00059 <span class="comment">/** Frees memory allocated by _stp_alloc or _stp_calloc.</span> -00060 <span class="comment"> * @param ptr pointer to memory to free</span> -00061 <span class="comment"> */</span> -00062 -<a name="l00063"></a><a class="code" href="alloc_8h.html#a6">00063</a> <span class="keywordtype">void</span> <a class="code" href="alloc_8h.html#a6">_stp_free</a>(<span class="keywordtype">void</span> *ptr) -00064 { -00065 <span class="keywordflow">if</span> (likely(ptr)) -00066 kfree(ptr); -00067 } -00068 <span class="comment"></span> -00069 <span class="comment">/** Frees memory allocated by _stp_valloc.</span> -00070 <span class="comment"> * @param ptr pointer to memory to free</span> -00071 <span class="comment"> */</span> -00072 -<a name="l00073"></a><a class="code" href="alloc_8h.html#a7">00073</a> <span class="keywordtype">void</span> <a class="code" href="alloc_8h.html#a7">_stp_vfree</a>(<span class="keywordtype">void</span> *ptr) -00074 { -00075 <span class="keywordflow">if</span> (likely(ptr)) -00076 vfree(ptr); -00077 } -</pre></div></body></html> |