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-rw-r--r--lcd4linux.conf.sample6
-rw-r--r--plugin_diskstats.c8
-rw-r--r--plugin_netdev.c146
3 files changed, 84 insertions, 76 deletions
diff --git a/lcd4linux.conf.sample b/lcd4linux.conf.sample
index 8028435..c1adc4a 100644
--- a/lcd4linux.conf.sample
+++ b/lcd4linux.conf.sample
@@ -256,7 +256,7 @@ Widget DiskBar {
Widget Eth0 {
class 'Text'
- expression (netdev('eth0.Rx.bytes', 500)+netdev('eth0.Tx.bytes', 500))/1024
+ expression (netdev('eth0', 'Rx_bytes', 500)+netdev('eth0', 'Tx_bytes', 500))/1024
prefix 'eth0'
postfix ' '
width 10
@@ -267,8 +267,8 @@ Widget Eth0 {
Widget Eth0Bar {
class 'Bar'
- expression netdev('eth0.Rx.bytes', 500)
- expression2 netdev('eth0.Tx.bytes', 500)
+ expression netdev('eth0', 'Rx_bytes', 500)
+ expression2 netdev('eth0', 'Tx_bytes', 500)
length 14
direction 'E'
update tack
diff --git a/plugin_diskstats.c b/plugin_diskstats.c
index 8ca519d..7dd0b03 100644
--- a/plugin_diskstats.c
+++ b/plugin_diskstats.c
@@ -1,4 +1,4 @@
-/* $Id: plugin_diskstats.c,v 1.3 2004/06/17 06:23:43 reinelt Exp $
+/* $Id: plugin_diskstats.c,v 1.4 2004/06/17 10:58:58 reinelt Exp $
*
* plugin for /proc/diskstats parsing
*
@@ -23,6 +23,10 @@
*
*
* $Log: plugin_diskstats.c,v $
+ * Revision 1.4 2004/06/17 10:58:58 reinelt
+ *
+ * changed plugin_netdev to use the new fast hash model
+ *
* Revision 1.3 2004/06/17 06:23:43 reinelt
*
* hash handling rewritten to solve performance issues
@@ -92,7 +96,7 @@ static int parse_diskstats (void)
end = beg;
while (*beg) {
while (*beg == ' ') beg++;
- end = beg+1;
+ end = beg + 1;
while (*end && *end != ' ') end++;
if (num++ == 2) break;
beg = end ? end+1 : NULL;
diff --git a/plugin_netdev.c b/plugin_netdev.c
index c679ae1..93bf107 100644
--- a/plugin_netdev.c
+++ b/plugin_netdev.c
@@ -1,4 +1,4 @@
-/* $Id: plugin_netdev.c,v 1.9 2004/06/17 06:23:43 reinelt Exp $
+/* $Id: plugin_netdev.c,v 1.10 2004/06/17 10:58:58 reinelt Exp $
*
* plugin for /proc/net/dev parsing
*
@@ -23,6 +23,10 @@
*
*
* $Log: plugin_netdev.c,v $
+ * Revision 1.10 2004/06/17 10:58:58 reinelt
+ *
+ * changed plugin_netdev to use the new fast hash model
+ *
* Revision 1.9 2004/06/17 06:23:43 reinelt
*
* hash handling rewritten to solve performance issues
@@ -88,86 +92,82 @@
static HASH NetDev;
-static FILE *stream = NULL;
-
-// Fixme: use new & fast hash code!!!
-
-static void hash_put3 (char *key1, char *key2, char *key3, char *val)
-{
- char key[32];
-
- qprintf(key, sizeof(key), "%s.%s.%s", key1, key2, key3);
- hash_put_delta (&NetDev, key, val);
-}
-
+static FILE *Stream = NULL;
+static char *DELIMITER = " :|\t\n";
static int parse_netdev (void)
{
int age;
- int line;
- int RxTx=0; // position of Receive/Transmit switch
+ int row, col;
+ static int first_time = 1;
// reread every 10 msec only
- age=hash_age(&NetDev, NULL);
- if (age>0 && age<=10) return 0;
+ age = hash_age(&NetDev, NULL);
+ if (age > 0 && age <= 10) return 0;
- if (stream==NULL) stream=fopen("/proc/net/dev", "r");
- if (stream==NULL) {
+ if (Stream == NULL) Stream = fopen("/proc/net/dev", "r");
+ if (Stream == NULL) {
error ("fopen(/proc/net/dev) failed: %s", strerror(errno));
return -1;
}
- rewind(stream);
- line=0;
+ rewind(Stream);
+ row = 0;
- while (!feof(stream)) {
+ while (!feof(Stream)) {
char buffer[256];
- char header[256], *h, *t;
- char *head[64];
- char delim[]=" :|\t\n";
- int col;
+ char dev[16];
+ char *beg, *end;
+ int len;
- if (fgets (buffer, sizeof(buffer), stream) == NULL) break;
-
- // skip line 1
- if (++line<2) continue;
-
- // line 2 used for headers
- if (line==2) {
- strncpy(header, buffer, sizeof(header));
- RxTx=(strrchr(header, '|') - header);
- col=0;
- h=header;
- while (h!=NULL) {
- while (strchr(delim, *h)) h++;
- if ((t=strpbrk(h, delim))!=NULL) *t='\0';
- head[col++]=h;
- h=t?t+1:NULL;
- }
- } else {
- char *h, *iface=NULL;
- col=0;
- h=buffer;
- while (h!=NULL) {
- while (strchr(delim, *h)) h++;
- if ((t=strpbrk(h, delim))!=NULL) *t='\0';
- if (col==0) {
- iface=h;
- } else {
- hash_put3 (iface, (h-buffer) < RxTx ? "Rx" : "Tx", head[col], h);
+ if (fgets (buffer, sizeof(buffer), Stream) == NULL) break;
+
+ switch (++row) {
+
+ case 1:
+ // skip row 1
+ continue;
+
+ case 2:
+ // row 2 used for headers
+ if (first_time) {
+ char *RxTx = strrchr(buffer, '|');
+ first_time = 0;
+ col = 0;
+ beg = buffer;
+ while (beg) {
+ char key[32];
+
+ while (strchr(DELIMITER, *beg)) beg++;
+ if ((end = strpbrk(beg, DELIMITER)) != NULL) *end = '\0';
+ qprintf(key, sizeof(key), "%s_%s", beg < RxTx ? "Rx" : "Tx", beg);
+ hash_set_column (&NetDev, col++, key);
+ beg = end ? end + 1 : NULL;
}
- h=t?t+1:NULL;
- col++;
}
+ continue;
+
+ default:
+ // fetch interface name (1st column) as key
+ beg = buffer;
+ while (*beg && *beg == ' ') beg++;
+ end = beg + 1;
+ while (*end && *end != ':') end++;
+ len = end - beg;
+ if (len >= sizeof(dev)) len = sizeof(dev)-1;
+ strncpy (dev, beg, len);
+ dev[len] = '\0';
+
+ hash_put_delta (&NetDev, dev, buffer);
}
}
return 0;
}
-static void my_netdev (RESULT *result, RESULT *arg1, RESULT *arg2)
+static void my_netdev (RESULT *result, RESULT *arg1, RESULT *arg2, RESULT *arg3)
{
- char *key;
+ char *dev, *key;
int delay;
double value;
@@ -176,17 +176,18 @@ static void my_netdev (RESULT *result, RESULT *arg1, RESULT *arg2)
return;
}
- key = R2S(arg1);
- delay = R2N(arg2);
+ dev = R2S(arg1);
+ key = R2S(arg2);
+ delay = R2N(arg3);
- value = hash_get_regex(&NetDev, key, NULL, delay);
+ value = hash_get_regex(&NetDev, dev, key, delay);
SetResult(&result, R_NUMBER, &value);
}
-static void my_netdev_fast(RESULT *result, RESULT *arg1, RESULT *arg2)
+static void my_netdev_fast(RESULT *result, RESULT *arg1, RESULT *arg2, RESULT *arg3)
{
- char *key;
+ char *dev, *key;
int delay;
double value;
@@ -195,10 +196,11 @@ static void my_netdev_fast(RESULT *result, RESULT *arg1, RESULT *arg2)
return;
}
- key = R2S(arg1);
- delay = R2N(arg2);
+ dev = R2S(arg1);
+ key = R2S(arg2);
+ delay = R2N(arg3);
- value = hash_get_delta(&NetDev, key, NULL, delay);
+ value = hash_get_delta(&NetDev, dev, key, delay);
SetResult(&result, R_NUMBER, &value);
}
@@ -207,16 +209,18 @@ static void my_netdev_fast(RESULT *result, RESULT *arg1, RESULT *arg2)
int plugin_init_netdev (void)
{
hash_create(&NetDev);
- AddFunction ("netdev", 2, my_netdev);
- AddFunction ("netdev::fast", 2, my_netdev_fast);
+ hash_set_delimiter (&NetDev, " :|\t\n");
+
+ AddFunction ("netdev", 3, my_netdev);
+ AddFunction ("netdev::fast", 3, my_netdev_fast);
return 0;
}
void plugin_exit_netdev(void)
{
- if(stream!=NULL) {
- fclose (stream);
- stream=NULL;
+ if(Stream!=NULL) {
+ fclose (Stream);
+ Stream=NULL;
}
hash_destroy(&NetDev);
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-19 23:23:10 +0000