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authorreinelt <reinelt@3ae390bd-cb1e-0410-b409-cd5a39f66f1f>2004-03-11 06:39:59 +0000
committerreinelt <reinelt@3ae390bd-cb1e-0410-b409-cd5a39f66f1f>2004-03-11 06:39:59 +0000
commit7d5c275cb8df79637212dc89ab980dabfc39a6df (patch)
treee3f51842280e06133de00726fa987765d4464f10 /plugin_netdev.c
parenta3501369a917c15bdba91811a32c271bbc5dc5b0 (diff)
downloadlcd4linux-7d5c275cb8df79637212dc89ab980dabfc39a6df.tar.gz
[lcd4linux @ 2004-03-11 06:39:58 by reinelt]
big patch from Martin: - reuse filehandles - memory leaks fixed - earlier busy-flag checking with HD44780 - reuse memory for strings in RESULT and hash - netdev_fast to wavid time-consuming regex git-svn-id: https://ssl.bulix.org/svn/lcd4linux/trunk@393 3ae390bd-cb1e-0410-b409-cd5a39f66f1f
Diffstat (limited to 'plugin_netdev.c')
-rw-r--r--plugin_netdev.c47
1 files changed, 40 insertions, 7 deletions
diff --git a/plugin_netdev.c b/plugin_netdev.c
index 1668498..bba623a 100644
--- a/plugin_netdev.c
+++ b/plugin_netdev.c
@@ -1,4 +1,4 @@
-/* $Id: plugin_netdev.c,v 1.6 2004/03/03 04:44:16 reinelt Exp $
+/* $Id: plugin_netdev.c,v 1.7 2004/03/11 06:39:59 reinelt Exp $
*
* plugin for /proc/net/dev parsing
*
@@ -23,6 +23,14 @@
*
*
* $Log: plugin_netdev.c,v $
+ * Revision 1.7 2004/03/11 06:39:59 reinelt
+ * big patch from Martin:
+ * - reuse filehandles
+ * - memory leaks fixed
+ * - earlier busy-flag checking with HD44780
+ * - reuse memory for strings in RESULT and hash
+ * - netdev_fast to wavid time-consuming regex
+ *
* Revision 1.6 2004/03/03 04:44:16 reinelt
* changes (cosmetics?) to the big patch from Martin
* hash patch un-applied
@@ -72,7 +80,7 @@
static HASH NetDev = { 0, };
-
+static FILE *stream = NULL;
static void hash_set3 (char *key1, char *key2, char *key3, char *val)
{
@@ -88,19 +96,20 @@ static int parse_netdev (void)
int age;
int line;
int RxTx=0; // position of Receive/Transmit switch
- FILE *stream;
// reread every 10 msec only
age=hash_age(&NetDev, NULL, NULL);
if (age>0 && age<=10) return 0;
- stream=fopen("/proc/net/dev", "r");
+ 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;
+
while (!feof(stream)) {
char buffer[256];
char header[256], *h, *t;
@@ -142,7 +151,7 @@ static int parse_netdev (void)
}
}
}
- fclose (stream);
+
return 0;
}
@@ -165,14 +174,38 @@ static void my_netdev (RESULT *result, RESULT *arg1, RESULT *arg2)
SetResult(&result, R_NUMBER, &value);
}
+static void my_netdev_fast(RESULT *result, RESULT *arg1, RESULT *arg2)
+{
+ char *key;
+ int delay;
+ double value;
+
+ if (parse_netdev()<0) {
+ SetResult(&result, R_STRING, "");
+ return;
+ }
+
+ key = R2S(arg1);
+ delay = R2N(arg2);
+
+ value = hash_get_delta(&NetDev, key, delay);
+
+ SetResult(&result, R_NUMBER, &value);
+}
+
int plugin_init_netdev (void)
{
AddFunction ("netdev", 2, my_netdev);
+ AddFunction ("netdev_fast", 2, my_netdev_fast);
return 0;
}
void plugin_exit_netdev(void)
{
- hash_destroy(&NetDev);
+ if(stream!=NULL) {
+ fclose (stream);
+ stream=NULL;
+ }
+ hash_destroy(&NetDev);
}