80 lines
4.2 KiB
HTML
80 lines
4.2 KiB
HTML
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<title>cwbSV_CreateTraceSPIHandle</title>
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</head>
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<body id="cwbsv_createtracespihandle"><a name="cwbsv_createtracespihandle"><!-- --></a>
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<!-- Java sync-link --><script language="Javascript" src="../rzahg/synch.js" type="text/javascript"></script>
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<h1 class="topictitle1">cwbSV_CreateTraceSPIHandle</h1>
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<div><div class="section"><h4 class="sectiontitle">Purpose</h4>
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<p>This function creates a trace SPI object and returns a handle to it. This
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trace SPI handle can be used in your program to log entry to and exit from
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your SPI entry points.</p>
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</div>
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<div class="section"><h4 class="sectiontitle">Syntax</h4>
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<pre>
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unsigned int CWB_ENTRY cwbSV_CreateTraceSPIHandle(
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char *productID,
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char *componentID,
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cwbSV_TraceSPIHandle *traceSPIHandle);</pre>
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</div>
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<div class="section"><h4 class="sectiontitle">Parameters</h4>
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<dl><dt class="dlterm">char * productID - input</dt>
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<dd>Points to a null-terminated string that contains a product identifier
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to be used on this message entry. Parameter is optional, if null, no productID
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is set. NOTE: A maximum of CWBSV_MAX_PRODUCT_ID characters will be logged
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for the product ID. Larger strings will be truncated.</dd>
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<dt class="dlterm">char * componentID - input</dt>
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<dd>Points to a null-terminated string that contains a component identifier
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to be used on this message entry. Parameter is optional, if null, no componentID
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is set. NOTE: A maximum of CWBSV_MAX_COMP_ID characters will be logged for
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the component ID. Larger strings will be truncated.</dd>
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<dt class="dlterm">cwbSV_TraceSPIHandle * traceSPIHandle - input/output</dt>
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<dd>Pointer to a cwbSV_TraceSPIHandle where the handle will be returned.
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This handle should be used in subsequent calls to the trace SPI functions.</dd>
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</dl>
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</div>
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<div class="section"><h4 class="sectiontitle">Return Codes</h4>
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<p>The following list shows common return values.</p>
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<dl><dt class="dlterm">CWB_OK</dt>
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<dd>Successful completion.</dd>
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<dt class="dlterm">CWB_INVALID_POINTER</dt>
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<dd>NULL passed on output parameter.</dd>
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<dt class="dlterm">CWB_NOT_ENOUGH_MEMORY</dt>
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<dd>Insufficient memory to create handle.</dd>
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</dl>
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</div>
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<div class="section"><h4 class="sectiontitle">Usage</h4>
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<p>It is recommended that you set a unique product ID and component ID in
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the trace data handle before using it to log trace entries. These ID's will
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distinguish your trace entries from other entries in the trace file.</p>
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</div>
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</div>
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<div>
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<div class="familylinks">
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<div class="parentlink"><strong>Parent topic:</strong> <a href="rzaiksvcapilist3.htm" title="Use these APIs to write trace points to an entry/exit trace file">Serviceability API list: Writing trace points</a></div>
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</div>
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</div>
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</body>
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