C:/xampp/htdocs/moodle/lib/xhprof/xhprof_lib/utils/callgraph_utils.php File Reference

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Functions
	xhprof_http_header ($name, $value)
	xhprof_generate_mime_header ($type, $length)
	xhprof_generate_image_by_dot ($dot_script, $type)
	xhprof_get_children_table ($raw_data)
	xhprof_generate_dot_script ($raw_data, $threshold, $source, $page, $func, $critical_path, $right=null, $left=null)
	xhprof_render_diff_image ($xhprof_runs_impl, $run1, $run2, $type, $threshold, $source)
	xhprof_get_content_by_run ($xhprof_runs_impl, $run_id, $type, $threshold, $func, $source, $critical_path)
	xhprof_render_image ($xhprof_runs_impl, $run_id, $type, $threshold, $func, $source, $critical_path)
Variables
	$xhprof_legal_image_types

---

Function Documentation

xhprof_generate_dot_script	(	$	raw_data,
		$	threshold,
		$	source,
		$	page,
		$	func,
		$	critical_path,
		$	right = null,
		$	left = null
	)

Generate DOT script from the given raw phprof data.

Parameters:

raw_data,phprof	profile data.
threshold,float,the	threshold value [0,1). The functions in the raw_data whose exclusive wall times ratio are below the threshold will be filtered out and won't apprear in the generated image.
page,string(optional),the	root node name. This can be used to replace the 'main()' as the root node.
func,string,the	focus function.
critical_path,bool,whether	or not to display critical path with bold lines.

Returns:

, string, the DOT script to generate image.

Author:

cjiang

Definition at line 167 of file callgraph_utils.php.

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xhprof_generate_image_by_dot	(	$	dot_script,
		$	type
	)

Generate image according to DOT script. This function will spawn a process with "dot" command and pipe the "dot_script" to it and pipe out the generated image content.

Parameters:

dot_script,string,the	script for DOT to generate the image.
type,one	of the supported image types, see $xhprof_legal_image_types.

Returns:

, binary content of the generated image on success. empty string on failure.

Author:

cjiang

Definition at line 96 of file callgraph_utils.php.

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xhprof_generate_mime_header	(	$	type,
		$	length
	)

Genearte and send MIME header for the output image to client browser.

Author:

cjiang

Definition at line 60 of file callgraph_utils.php.

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xhprof_get_children_table

(

$

raw_data

)

Definition at line 137 of file callgraph_utils.php.

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xhprof_get_content_by_run	(	$	xhprof_runs_impl,
		$	run_id,
		$	type,
		$	threshold,
		$	func,
		$	source,
		$	critical_path
	)

Generate image content from phprof run id.

Parameters:

object	$xhprof_runs_impl	An object that implements the iXHProfRuns interface
	run_id,integer,the	unique id for the phprof run, this is the primary key for phprof database table.
	type,string,one	of the supported image types. See also $xhprof_legal_image_types.
	threshold,float,the	threshold value [0,1). The functions in the raw_data whose exclusive wall times ratio are below the threshold will be filtered out and won't apprear in the generated image.
	func,string,the	focus function.

Returns:

, string, the DOT script to generate image.

Author:

cjiang

Definition at line 435 of file callgraph_utils.php.

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xhprof_http_header	(	$	name,
		$	value
	)

Send an HTTP header with the response. You MUST use this function instead of header() so that we can debug header issues because they're virtually impossible to debug otherwise. If you try to commit header(), SVN will reject your commit.

Parameters:

string	HTTP header name, like 'Location'
string	HTTP header value, like 'http://www.example.com/'

Definition at line 41 of file callgraph_utils.php.

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xhprof_render_diff_image	(	$	xhprof_runs_impl,
		$	run1,
		$	run2,
		$	type,
		$	threshold,
		$	source
	)

Definition at line 394 of file callgraph_utils.php.

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xhprof_render_image	(	$	xhprof_runs_impl,
		$	run_id,
		$	type,
		$	threshold,
		$	func,
		$	source,
		$	critical_path
	)

Generate image from phprof run id and send it to client.

Parameters:

object	$xhprof_runs_impl	An object that implements the iXHProfRuns interface
	run_id,integer,the	unique id for the phprof run, this is the primary key for phprof database table.
	type,string,one	of the supported image types. See also $xhprof_legal_image_types.
	threshold,float,the	threshold value [0,1). The functions in the raw_data whose exclusive wall times ratio are below the threshold will be filtered out and won't apprear in the generated image.
	func,string,the	focus function.
	bool,does	this run correspond to a PHProfLive run or a dev run?

Author:

cjiang

Definition at line 471 of file callgraph_utils.php.

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Variable Documentation

$xhprof_legal_image_types

Initial value:

 array(
    "jpg" => 1,
    "gif" => 1,
    "png" => 1,
    "ps"  => 1,
    )

Definition at line 24 of file callgraph_utils.php.