From: Sebastian Harl <sh@tokkee.org>
Date: Tue, 10 Mar 2009 21:06:10 +0000 (+0100)
Subject: battery plugin: Don't complain about missing /proc/acpi/battery each interval.
X-Git-Tag: collectd-4.5.4~22
X-Git-Url: https://git.octo.it/?a=commitdiff_plain;h=0c0db283184765cb40fcd8cd52735b6e2cc7db31;p=collectd.git

battery plugin: Don't complain about missing /proc/acpi/battery each interval.

Instead, complain once when the read callback is called for the first time.
---

diff --git a/src/battery.c b/src/battery.c
index 416f3397..3e726991 100644
--- a/src/battery.c
+++ b/src/battery.c
@@ -23,6 +23,8 @@
 #include "common.h"
 #include "plugin.h"
 
+#include "utils_complain.h"
+
 #if HAVE_MACH_MACH_TYPES_H
 #  include <mach/mach_types.h>
 #endif
@@ -437,6 +439,8 @@ static int battery_read (void)
 /* #endif HAVE_IOKIT_IOKITLIB_H || HAVE_IOKIT_PS_IOPOWERSOURCES_H */
 
 #elif KERNEL_LINUX
+	static c_complain_t acpi_dir_complaint = C_COMPLAIN_INIT_STATIC;
+
 	FILE *fh;
 	char buffer[1024];
 	char filename[256];
@@ -507,8 +511,17 @@ static int battery_read (void)
 			battery_submit ("0", "voltage", voltage);
 	}
 
-	walk_directory (battery_acpi_dir, battery_read_acpi,
-			/* user_data = */ NULL);
+	if (0 == access (battery_acpi_dir, R_OK))
+		walk_directory (battery_acpi_dir, battery_read_acpi,
+				/* user_data = */ NULL);
+	else
+	{
+		char errbuf[1024];
+		c_complain_once (LOG_WARNING, &acpi_dir_complaint,
+				"battery plugin: Failed to access `%s': %s",
+				battery_acpi_dir,
+				sstrerror (errno, errbuf, sizeof (errbuf)));
+	}
 
 #endif /* KERNEL_LINUX */