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authorreinelt <>2004-03-11 06:39:59 +0000
committerreinelt <>2004-03-11 06:39:59 +0000
commitb241d736825d0469b7716847ee4ef5de269d2423 (patch)
treee3f51842280e06133de00726fa987765d4464f10 /plugin_proc_stat.c
parent888c37c1b1aa181c76253af8425b2bbbac4bbc4a (diff)
downloadlcd4linux-b241d736825d0469b7716847ee4ef5de269d2423.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
Diffstat (limited to 'plugin_proc_stat.c')
-rw-r--r--plugin_proc_stat.c25
1 files changed, 18 insertions, 7 deletions
diff --git a/plugin_proc_stat.c b/plugin_proc_stat.c
index 72de48e..03cdfb0 100644
--- a/plugin_proc_stat.c
+++ b/plugin_proc_stat.c
@@ -1,4 +1,4 @@
-/* $Id: plugin_proc_stat.c,v 1.17 2004/03/03 04:44:16 reinelt Exp $
+/* $Id: plugin_proc_stat.c,v 1.18 2004/03/11 06:39:59 reinelt Exp $
*
* plugin for /proc/stat parsing
*
@@ -23,6 +23,14 @@
*
*
* $Log: plugin_proc_stat.c,v $
+ * Revision 1.18 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 1.17 2004/03/03 04:44:16 reinelt
* changes (cosmetics?) to the big patch from Martin
* hash patch un-applied
@@ -112,6 +120,8 @@
static HASH Stat = { 0, };
+static FILE *stream = NULL;
+
static void hash_set1 (char *key1, char *val)
{
@@ -140,18 +150,19 @@ static void hash_set3 (char *key1, char *key2, char *key3, char *val)
static int parse_proc_stat (void)
{
int age;
- FILE *stream;
// reread every 10 msec only
age=hash_age(&Stat, NULL, NULL);
if (age>0 && age<=10) return 0;
- stream=fopen("/proc/stat", "r");
+ if (stream==NULL) stream=fopen("/proc/stat", "r");
if (stream==NULL) {
error ("fopen(/proc/stat) failed: %s", strerror(errno));
return -1;
}
+ rewind(stream);
+
while (!feof(stream)) {
char buffer[1024];
if (fgets (buffer, sizeof(buffer), stream) == NULL) break;
@@ -175,7 +186,6 @@ static int parse_proc_stat (void)
beg=end?end+1:NULL;
}
}
-
else if (strncmp(buffer, "page ", 5)==0) {
char *key[] = { "in", "out" };
char delim[] = " \t\n";
@@ -220,8 +230,6 @@ static int parse_proc_stat (void)
beg=end?end+1:NULL;
}
}
-
-
else if (strncmp(buffer, "disk_io:", 8)==0) {
char *key[] = { "io", "rio", "rblk", "wio", "wblk" };
char delim[] = " ():,\t\n";
@@ -256,7 +264,6 @@ static int parse_proc_stat (void)
hash_set1 (buffer, beg);
}
}
- fclose (stream);
return 0;
}
@@ -357,5 +364,9 @@ int plugin_init_proc_stat (void)
void plugin_exit_proc_stat(void)
{
+ if (stream!=NULL) {
+ fclose (stream);
+ stream=NULL;
+ }
hash_destroy(&Stat);
}