1 files changed, 84 insertions, 0 deletions
diff --git a/src/pmdas/windows/helptext.c b/src/pmdas/windows/helptext.c
new file mode 100644
index 0000000..d1876e1
--- /dev/null
+++ b/src/pmdas/windows/helptext.c
@@ -0,0 +1,84 @@
+/*
+ * Copyright (c) 2008-2009 Aconex.  All Rights Reserved.
+ * Copyright (c) 2004 Silicon Graphics, Inc.  All Rights Reserved.
+ * 
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ * 
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ * or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * for more details.
+ */
+
+#include <ctype.h>
+#include "hypnotoad.h"
+
+static char	*text;	/* filled in by iterator callback routine */
+static char	texts[MAX_M_TEXT_LEN];	/* static callback buffer */
+
+/*
+ * Replace backslashes in the help string returned from Pdh APIs.
+ * Everything done "in-place" so no change to size of the string.
+ */
+static char *
+windows_fmt(char *text)
+{
+    char	*p;
+    int		n;
+
+    for (p = text, n = 0; p && *p != '\0'; p++, n++) {
+	if (!isprint((int)*p))		/* toss any dodgey characters */
+	    *p = '?';
+	else if (*p == '\r')		/* remove Windows line ending */
+	    *p = '\n';
+	if (n < 70 || !isspace((int)*p))	/* very simple line wrapping */
+	    continue;
+	*p = '\n';
+	n = 0;
+    }
+    return text;
+}
+
+static void
+windows_helptext_metric(pdh_metric_t *mp, PDH_COUNTER_INFO_A *infop)
+{
+    text = infop->szExplainText;
+}
+
+static void
+windows_helptext_callback(pdh_metric_t *pmp, LPSTR pat, pdh_value_t *pvp)
+{
+    windows_inform_metric(pmp, pat, pvp, TRUE, windows_helptext_metric);
+}
+
+int
+windows_help(int ident, int type, char **buf, pmdaExt *pmda)
+{
+    pmID	pmid = (pmID)ident;
+    int		i;
+
+    if ((type & PM_TEXT_PMID) != PM_TEXT_PMID)
+	return pmdaText(ident, type, buf, pmda);
+
+    for (i = 0; i < metricdesc_sz; i++)
+	if (pmid == metricdesc[i].desc.pmid)
+	    break;
+    if (i == metricdesc_sz)
+	return PM_ERR_PMID;
+
+    if (type & PM_TEXT_ONELINE) {
+	if (metricdesc[i].pat[0] == '\0')
+	    return pmdaText(ident, type, buf, pmda);
+	*buf = windows_fmt(strncpy(texts, &metricdesc[i].pat[0], sizeof(texts)));
+    } else {
+	text = NULL;
+	windows_visit_metric(&metricdesc[i], windows_helptext_callback);
+	if (!text)
+	    return pmdaText(ident, type, buf, pmda);
+	*buf = windows_fmt(strncpy(texts, text, sizeof(texts)));
+    }
+    return 0;
+}