irq plugin: Parse interrupt counters as unsigned long long.

Hello,

attached patch fixes accounting of most frequent interrupts (like NICs
on routers). E.g. in my case:

213:      76266      76357      76250      76397 2408617852 2411844062 2411642538 2411814531   PCI-MSI-edge      eth1
214: 2621368360 2621463385 2621343444 2621386931    2349184         28         35         32   PCI-MSI-edge      eth0

Here LONG_MAX (2147483647L) overflows in 10 days uptime and strtol()
returns the same value.

As all the values (including counter_t) are unsigned long long int, the
fix is trivial (for now there's no need to check for irq_value overflow;>).

--
Tomasz Pala <gotar@pld-linux.org>

Signed-off-by: Florian Forster <octo@leeloo.lan.home.verplant.org>

diff --git a/src/irq.c b/src/irq.c
index 986efaf..0492c81 100644 (file)
--- a/src/irq.c
+++ b/src/irq.c
@@ -151,8 +151,8 @@ static int irq_read (void)
        FILE *fh;
        char buffer[BUFSIZE];
        unsigned int irq;
-       unsigned int irq_value;
-       long value;
+       unsigned long long irq_value;
+       unsigned long long value;
        char *endptr;
        int i;
 
@@ -182,7 +182,7 @@ static int irq_read (void)
                for (i = 1; i < fields_num; i++)
                {
                        errno = 0;
-                       value = strtol (fields[i], &endptr, 10);
+                       value = strtoull (fields[i], &endptr, 10);
 
                        if ((*endptr != '\0') || (errno != 0))
                                break;