-/* $Id: hash.c,v 1.2 2004/01/16 05:04:53 reinelt Exp $
+/* $Id: hash.c,v 1.3 2004/01/16 07:26:25 reinelt Exp $
*
* hashes (associative arrays)
*
*
*
* $Log: hash.c,v $
+ * Revision 1.3 2004/01/16 07:26:25 reinelt
+ * moved various /proc parsing to own functions
+ * made some progress with /proc/stat parsing
+ *
* Revision 1.2 2004/01/16 05:04:53 reinelt
* started plugin proc_stat which should parse /proc/stat
* which again is a paint in the a**
}
-// bsearch compare function for filter entries
-static int filter_lookup_f (const void *a, const void *b)
-{
- char *key=(char*)a;
- FILTER_ITEM *item=(FILTER_ITEM*)b;
-
- return strcmp(key, item->key);
-}
-
-
// qsort compare function for hash tables
static int hash_sort_f (const void *a, const void *b)
{
}
-// qsort compare function for filter tables
-static int filter_sort_f (const void *a, const void *b)
-{
- FILTER_ITEM *ha=(FILTER_ITEM*)a;
- FILTER_ITEM *hb=(FILTER_ITEM*)b;
-
- return strcasecmp(ha->key, hb->key);
-}
-
-
-
// insert a key/val pair into the hash table
// the tbale will be searched linearly if the entry
// does already exist, for the table may not be sorted.
Hash->Items=NULL;
}
-
-// insert a key/val pair into the filter table
-// the tbale will be searched linearly if the entry
-// does already exist, for the table may not be sorted.
-// the table will be flagged 'unsorted' afterwards
-void filter_set (FILTER *Filter, char *key, char *val)
-{
- int i;
-
- // entry already exists?
- for (i=0;i<Filter->nItems; i++) {
- if (strcmp(key, Filter->Items[i].key)==0) {
- // if (Filter->Items[i].val) free (Filter->Items[i].val);
- // Filter->Items[i].val=strdup(val);
- return;
- }
- }
-
- // add entry
- Filter->sorted=0;
- Filter->nItems++;
- Filter->Items=realloc(Filter->Items,Filter->nItems*sizeof(FILTER_ITEM));
- Filter->Items[i].key=strdup(key);
-
-
- Filter->Items[i].Slots=strdup(val);
-}
-
-
-double filter_get (FILTER *Filter, char *key)
-{
- FILTER_ITEM *Item;
-
- if (!Filter->sorted) {
- qsort(Filter->Items, Filter->nItems, sizeof(FILTER_ITEM), filter_sort_f);
- Filter->sorted=1;
- }
-
- Item=bsearch(key, Filter->Items, Filter->nItems, sizeof(FILTER_ITEM), filter_lookup_f);
- if (Item==NULL) return 0.0;
- if (Item->Slots==NULL) return 0.0;
- return Item->Slots[0].val;
-
-}
-
-
-void filter_destroy (FILTER *Filter)
-{
- int i;
-
- if (Filter->Items) {
-
- // free all entries
- for (i=0;i<Filter->nItems; i++) {
- if (Filter->Items[i].key) free (Filter->Items[i].key);
- if (Filter->Items[i].Slots) free (Filter->Items[i].Slots);
- }
-
- // free filter table
- free (Filter->Items);
- }
-
- Filter->nItems=0;
- Filter->sorted=0;
- Filter->Items=NULL;
-}
-/* $Id: hash.h,v 1.2 2004/01/16 05:04:53 reinelt Exp $
+/* $Id: hash.h,v 1.3 2004/01/16 07:26:25 reinelt Exp $
*
* hashes (associative arrays)
*
*
*
* $Log: hash.h,v $
+ * Revision 1.3 2004/01/16 07:26:25 reinelt
+ * moved various /proc parsing to own functions
+ * made some progress with /proc/stat parsing
+ *
* Revision 1.2 2004/01/16 05:04:53 reinelt
* started plugin proc_stat which should parse /proc/stat
* which again is a paint in the a**
FILTER_SLOT *Slots;
} FILTER_ITEM;
-typedef struct {
- int sorted;
- int nItems;
- FILTER_ITEM *Items;
-} FILTER;
-
void hash_set (HASH *Hash, char *key, char *val);
char *hash_get (HASH *Hash, char *key);
void hash_destroy (HASH *Hash);
-void filter_set (FILTER *Filter, char *key, double val);
-double filter_get (FILTER *Filter, char *key);
-void filter_destroy (FILTER *Filter);
-
#endif
-/* $Id: plugin_cpuinfo.c,v 1.3 2004/01/15 04:29:45 reinelt Exp $
+/* $Id: plugin_cpuinfo.c,v 1.4 2004/01/16 07:26:25 reinelt Exp $
*
* plugin for /proc/cpuinfo parsing
*
*
*
* $Log: plugin_cpuinfo.c,v $
+ * Revision 1.4 2004/01/16 07:26:25 reinelt
+ * moved various /proc parsing to own functions
+ * made some progress with /proc/stat parsing
+ *
* Revision 1.3 2004/01/15 04:29:45 reinelt
* moved lcd4linux.conf.sample to *.old
* lcd4linux.conf.sample with new layout
#include "hash.h"
-static void my_cpuinfo (RESULT *result, RESULT *arg1)
+static HASH CPUinfo = { 0, 0, NULL };
+
+
+static int parse_cpuinfo (void)
{
- static HASH CPUinfo = { 0, 0, NULL };
-
static time_t now=0;
- char *key, *val;
-
+ FILE *stream;
+
// reread every second only
- if (time(NULL)!=now) {
- FILE *stream;
+ if (time(NULL)==now) return 0;
+ time(&now);
+
- // destroy previous hash table
- hash_destroy (&CPUinfo);
-
- stream=fopen("/proc/cpuinfo", "r");
- if (stream==NULL) {
- error ("fopen(/proc/cpuinfo) failed: %s", strerror(errno));
- SetResult(&result, R_STRING, "");
- return;
- }
+ stream=fopen("/proc/cpuinfo", "r");
+ if (stream==NULL) {
+ error ("fopen(/proc/cpuinfo) failed: %s", strerror(errno));
+ return -1;
+ }
- while (!feof(stream)) {
- char buffer[256];
- char *c;
- fgets (buffer, sizeof(buffer), stream);
- c=strchr(buffer, ':');
- if (c==NULL) continue;
- key=buffer; val=c+1;
- // strip leading blanks from key
- while (isspace(*key)) *key++='\0';
- // strip trailing blanks from key
- do *c='\0'; while (isspace(*--c));
- // strip leading blanks from value
- while (isspace(*val)) *val++='\0';
- // strip trailing blanks from value
- for (c=val; *c!='\0';c++);
- while (isspace(*--c)) *c='\0';
+ while (!feof(stream)) {
+ char buffer[256];
+ char *c, *key, *val;
+ fgets (buffer, sizeof(buffer), stream);
+ c=strchr(buffer, ':');
+ if (c==NULL) continue;
+ key=buffer; val=c+1;
+ // strip leading blanks from key
+ while (isspace(*key)) *key++='\0';
+ // strip trailing blanks from key
+ do *c='\0'; while (isspace(*--c));
+ // strip leading blanks from value
+ while (isspace(*val)) *val++='\0';
+ // strip trailing blanks from value
+ for (c=val; *c!='\0';c++);
+ while (isspace(*--c)) *c='\0';
- // add entry to hash table
- hash_set (&CPUinfo, key, val);
+ // add entry to hash table
+ hash_set (&CPUinfo, key, val);
- }
- fclose (stream);
- time(&now);
+ }
+ fclose (stream);
+ return 0;
+}
+
+
+static void my_cpuinfo (RESULT *result, RESULT *arg1)
+{
+ char *key, *val;
+
+ if (parse_cpuinfo()<0) {
+ SetResult(&result, R_STRING, "");
+ return;
}
key=R2S(arg1);
val=hash_get(&CPUinfo, key);
if (val==NULL) val="";
-
+
SetResult(&result, R_STRING, val);
}
-/* $Id: plugin_meminfo.c,v 1.1 2004/01/15 04:29:45 reinelt Exp $
+/* $Id: plugin_meminfo.c,v 1.2 2004/01/16 07:26:25 reinelt Exp $
*
* plugin for /proc/meminfo parsing
*
*
*
* $Log: plugin_meminfo.c,v $
+ * Revision 1.2 2004/01/16 07:26:25 reinelt
+ * moved various /proc parsing to own functions
+ * made some progress with /proc/stat parsing
+ *
* Revision 1.1 2004/01/15 04:29:45 reinelt
* moved lcd4linux.conf.sample to *.old
* lcd4linux.conf.sample with new layout
#include "debug.h"
#include "plugin.h"
+
#include "hash.h"
-static void my_meminfo (RESULT *result, RESULT *arg1)
+static HASH MemInfo = { 0, 0, NULL };
+
+
+static int parse_meminfo (void)
{
- static HASH MemInfo = { 0, 0, NULL };
-
static time_t now=0;
- char *key, *val;
+ FILE *stream;
int line;
// reread every second only
- if (time(NULL)!=now) {
- FILE *stream;
-
- // destroy previous hash table
- hash_destroy (&MemInfo);
-
- stream=fopen("/proc/meminfo", "r");
- if (stream==NULL) {
- error ("fopen(/proc/meminfo) failed: %s", strerror(errno));
- SetResult(&result, R_STRING, "");
- return;
- }
+ if (time(NULL)==now) return 0;
+ time(&now);
+
+ stream=fopen("/proc/meminfo", "r");
+ if (stream==NULL) {
+ error ("fopen(/proc/meminfo) failed: %s", strerror(errno));
+ return -1;
+ }
- line=0;
- while (!feof(stream)) {
- char buffer[256];
- char *c;
- fgets (buffer, sizeof(buffer), stream);
- c=strchr(buffer, ':');
- if (c==NULL) continue;
- key=buffer; val=c+1;
- // strip leading blanks from key
- while (isspace(*key)) *key++='\0';
- // strip trailing blanks from key
- do *c='\0'; while (isspace(*--c));
- // strip leading blanks from value
- while (isspace(*val)) *val++='\0';
- // strip trailing blanks from value
- for (c=val; *c!='\0';c++);
- while (isspace(*--c)) *c='\0';
- // skip lines that do not end with " kB"
- if (*c=='B' && *(c-1)=='k' && *(c-2)==' ') {
- // strip trailing " kB" from value
- *(c-2)='\0';
- // add entry to hash table
- hash_set (&MemInfo, key, val);
- }
+ line=0;
+ while (!feof(stream)) {
+ char buffer[256];
+ char *c, *key, *val;
+ fgets (buffer, sizeof(buffer), stream);
+ c=strchr(buffer, ':');
+ if (c==NULL) continue;
+ key=buffer; val=c+1;
+ // strip leading blanks from key
+ while (isspace(*key)) *key++='\0';
+ // strip trailing blanks from key
+ do *c='\0'; while (isspace(*--c));
+ // strip leading blanks from value
+ while (isspace(*val)) *val++='\0';
+ // strip trailing blanks from value
+ for (c=val; *c!='\0';c++);
+ while (isspace(*--c)) *c='\0';
+ // skip lines that do not end with " kB"
+ if (*c=='B' && *(c-1)=='k' && *(c-2)==' ') {
+ // strip trailing " kB" from value
+ *(c-2)='\0';
+ // add entry to hash table
+ hash_set (&MemInfo, key, val);
}
- fclose (stream);
- time(&now);
+ }
+ fclose (stream);
+ return 0;
+}
+
+static void my_meminfo (RESULT *result, RESULT *arg1)
+{
+ char *key, *val;
+
+ if (parse_meminfo()<0) {
+ SetResult(&result, R_STRING, "");
+ return;
}
key=R2S(arg1);
val=hash_get(&MemInfo, key);
if (val==NULL) val="";
-
+
SetResult(&result, R_STRING, val);
}
-/* $Id: plugin_proc_stat.c,v 1.1 2004/01/16 05:04:53 reinelt Exp $
+/* $Id: plugin_proc_stat.c,v 1.2 2004/01/16 07:26:25 reinelt Exp $
*
* plugin for /proc/stat parsing
*
*
*
* $Log: plugin_proc_stat.c,v $
+ * Revision 1.2 2004/01/16 07:26:25 reinelt
+ * moved various /proc parsing to own functions
+ * made some progress with /proc/stat parsing
+ *
* Revision 1.1 2004/01/16 05:04:53 reinelt
* started plugin proc_stat which should parse /proc/stat
* which again is a paint in the a**
}
+static void my_hash_set (char *key1, char *key2, char *val)
+{
+ char key[16];
+
+ snprintf (key, sizeof(key), "%s.%s", key1, key2);
+ debug ("Michi: hash_set(%s, %s)", key, val);
+ hash_set (&Stat, key, val);
+}
+
+
static int parse_proc_stat (void)
{
FILE *stream;
// update every 10 msec
if (!renew(10)) return 0;
- // destroy previous hash table
- hash_destroy (&Stat);
-
stream=fopen("/proc/stat", "r");
if (stream==NULL) {
error ("fopen(/proc/stat) failed: %s", strerror(errno));
while (!feof(stream)) {
char buffer[256];
fgets (buffer, sizeof(buffer), stream);
-
+
if (strncmp(buffer, "cpu", 3)==0) {
- unsigned long v1, v2, v3, v4;
- debug ("Michi: buffer=<%s>", buffer);
- if (sscanf(buffer+4, " %lu %lu %lu %lu", &v1, &v2, &v3, &v4)==4) {
- debug ("Michi: v1=<%ld> v2=<%ld> v3=<%ld> v4=<%ld>", v1, v2, v3, v4);
- }
+ char *cpu;
+ cpu=strtok(buffer, " \t");
+ my_hash_set (cpu, "user", strtok(NULL, " \t"));
+ my_hash_set (cpu, "nice", strtok(NULL, " \t"));
+ my_hash_set (cpu, "system", strtok(NULL, " \t"));
+ my_hash_set (cpu, "idle", strtok(NULL, " \t"));
}
else if (strncmp(buffer, "page ", 5)==0) {
{
char *key, *val;
- parse_proc_stat();
+ if (parse_proc_stat()<0) {
+ SetResult(&result, R_STRING, "");
+ return;
+ }
key=R2S(arg1);
- val="";
-
- SetResult(&result, R_STRING, "");
+ val=hash_get(&Stat, key);
+ if (val==NULL) val="";
+
+ SetResult(&result, R_STRING, val);
}
projects / lcd4linux.git / commitdiff