From f23ae97e307f00a79cbf2e01f9ca20da29ea87c3 Mon Sep 17 00:00:00 2001
From: Chris Wilson <chris@chris-wilson.co.uk>
Date: Thu, 24 Sep 2009 16:30:57 +0100
Subject: [perf] Support parsing reports from stdin

---
 perf/cairo-perf-compare-backends.c | 22 ++++++++++++----------
 perf/cairo-perf-report.c           | 29 +++++++++++++++++++----------
 2 files changed, 31 insertions(+), 20 deletions(-)

diff --git a/perf/cairo-perf-compare-backends.c b/perf/cairo-perf-compare-backends.c
index 1448169b..277536e5 100644
--- a/perf/cairo-perf-compare-backends.c
+++ b/perf/cairo-perf-compare-backends.c
@@ -363,16 +363,18 @@ main (int argc, const char *argv[])
 
     parse_args (argc, argv, &args);
 
-    if (args.num_filenames < 1)
-	usage (argv[0]);
-
-    reports = xcalloc (args.num_filenames, sizeof (cairo_perf_report_t));
-
-    for (i = 0; i < args.num_filenames; i++) {
-	cairo_perf_report_load (&reports[i], args.filenames[i],
-		                test_report_cmp_name);
-	printf ("loaded: %s, %d tests\n",
-		args.filenames[i], reports[i].tests_count);
+    if (args.num_filenames) {
+	reports = xcalloc (args.num_filenames, sizeof (cairo_perf_report_t));
+	for (i = 0; i < args.num_filenames; i++) {
+	    cairo_perf_report_load (&reports[i], args.filenames[i],
+				    test_report_cmp_name);
+	    printf ("loaded: %s, %d tests\n",
+		    args.filenames[i], reports[i].tests_count);
+	}
+    } else {
+	args.num_filenames = 1;
+	reports = xcalloc (args.num_filenames, sizeof (cairo_perf_report_t));
+	cairo_perf_report_load (&reports[0], NULL, test_report_cmp_name);
     }
 
     cairo_perf_reports_compare (reports, args.num_filenames, &args.options);
diff --git a/perf/cairo-perf-report.c b/perf/cairo-perf-report.c
index 1690e62a..2029a884 100644
--- a/perf/cairo-perf-report.c
+++ b/perf/cairo-perf-report.c
@@ -437,9 +437,14 @@ cairo_perf_report_load (cairo_perf_report_t *report,
     char *configuration;
     char *dot;
     char *baseName;
+    const char *name;
 
-    configuration = xmalloc (strlen (filename) * sizeof (char) + 1);
-    strcpy (configuration, filename);
+    name = filename;
+    if (name == NULL)
+	name = "stdin";
+
+    configuration = xmalloc (strlen (name) * sizeof (char) + 1);
+    strcpy (configuration, name);
     baseName = basename (configuration);
     report->configuration = xmalloc (strlen (baseName) * sizeof (char) + 1);
     strcpy (report->configuration, baseName);
@@ -449,16 +454,20 @@ cairo_perf_report_load (cairo_perf_report_t *report,
     if (dot)
 	*dot = '\0';
 
-    report->name = filename;
+    report->name = name;
     report->tests_size = 16;
     report->tests = xmalloc (report->tests_size * sizeof (test_report_t));
     report->tests_count = 0;
 
-    file = fopen (filename, "r");
-    if (file == NULL) {
-	fprintf (stderr, "Failed to open %s: %s\n",
-		 filename, strerror (errno));
-	exit (1);
+    if (filename == NULL) {
+	file = stdin;
+    } else {
+	file = fopen (filename, "r");
+	if (file == NULL) {
+	    fprintf (stderr, "Failed to open %s: %s\n",
+		     filename, strerror (errno));
+	    exit (1);
+	}
     }
 
     while (1) {
@@ -485,7 +494,8 @@ cairo_perf_report_load (cairo_perf_report_t *report,
     if (line)
 	free (line);
 
-    fclose (file);
+    if (filename != NULL)
+	fclose (file);
 
     cairo_perf_report_sort_and_compute_stats (report, cmp);
 
@@ -497,4 +507,3 @@ cairo_perf_report_load (cairo_perf_report_t *report,
     }
     report->tests[report->tests_count].name = NULL;
 }
-
-- 
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