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[lcd4linux @ 2004-03-11 06:39:58 by reinelt]

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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
This commit is contained in:
reinelt
2004-03-11 06:39:59 +00:00
parent a3501369a9
commit 7d5c275cb8
16 changed files with 350 additions and 133 deletions
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47
plugin_netdev.c
View File

@@ -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);
}