registry_init();
-
// ------------------------------------------------------------------------
// spawn the threads
#include "plugin_proc.h"
#include "log.h"
-#define MAX_INTERRUPTS 256
-#define MAX_INTERRUPT_CPUS 256
#define MAX_INTERRUPT_NAME 50
struct interrupt {
int used;
char *id;
char name[MAX_INTERRUPT_NAME + 1];
- unsigned long long value[MAX_INTERRUPT_CPUS];
unsigned long long total;
+ unsigned long long value[];
};
-static struct interrupt *alloc_interrupts(int lines) {
+// since each interrupt is variable in size
+// we use this to calculate its record size
+#define recordsize(cpus) (sizeof(struct interrupt) + (cpus * sizeof(unsigned long long)))
+
+// given a base, get a pointer to each record
+#define irrindex(base, line, cpus) ((struct interrupt *)&((char *)(base))[line * recordsize(cpus)])
+
+static inline struct interrupt *get_interrupts_array(int lines, int cpus) {
static struct interrupt *irrs = NULL;
- static int alloced = 0;
+ static int allocated = 0;
- if(lines < alloced) return irrs;
+ if(lines < allocated) return irrs;
else {
- irrs = (struct interrupt *)realloc(irrs, lines * sizeof(struct interrupt));
+ irrs = (struct interrupt *)realloc(irrs, lines * recordsize(cpus));
if(!irrs)
fatal("Cannot allocate memory for %d interrupts", lines);
- alloced = lines;
+ allocated = lines;
}
return irrs;
int do_proc_interrupts(int update_every, unsigned long long dt) {
static procfile *ff = NULL;
static int cpus = -1, do_per_core = -1;
-
struct interrupt *irrs = NULL;
if(dt) {};
if(strncmp(procfile_lineword(ff, 0, w), "CPU", 3) == 0)
cpus++;
}
-
- if(cpus > MAX_INTERRUPT_CPUS) cpus = MAX_INTERRUPT_CPUS;
}
if(!cpus) {
}
// allocate the size we need;
- irrs = alloc_interrupts(lines);
+ irrs = get_interrupts_array(lines, cpus);
irrs[0].used = 0;
// loop through all lines
for(l = 1; l < lines ;l++) {
- struct interrupt *irr = &irrs[l];
+ struct interrupt *irr = irrindex(irrs, l, cpus);
irr->used = 0;
irr->total = 0;
st = rrdset_create("system", "interrupts", NULL, "interrupts", NULL, "System interrupts", "interrupts/s", 1000, update_every, RRDSET_TYPE_STACKED);
for(l = 0; l < lines ;l++) {
- if(!irrs[l].used) continue;
- rrddim_add(st, irrs[l].id, irrs[l].name, 1, 1, RRDDIM_INCREMENTAL);
+ struct interrupt *irr = irrindex(irrs, l, cpus);
+ if(!irr->used) continue;
+ rrddim_add(st, irr->id, irr->name, 1, 1, RRDDIM_INCREMENTAL);
}
}
else rrdset_next(st);
for(l = 0; l < lines ;l++) {
- if(!irrs[l].used) continue;
- rrddim_set(st, irrs[l].id, irrs[l].total);
+ struct interrupt *irr = irrindex(irrs, l, cpus);
+ if(!irr->used) continue;
+ rrddim_set(st, irr->id, irr->total);
}
rrdset_done(st);
st = rrdset_create("cpu", id, name, "interrupts", "cpu.interrupts", title, "interrupts/s", 2000 + c, update_every, RRDSET_TYPE_STACKED);
for(l = 0; l < lines ;l++) {
- if(!irrs[l].used) continue;
- rrddim_add(st, irrs[l].id, irrs[l].name, 1, 1, RRDDIM_INCREMENTAL);
+ struct interrupt *irr = irrindex(irrs, l, cpus);
+ if(!irr->used) continue;
+ rrddim_add(st, irr->id, irr->name, 1, 1, RRDDIM_INCREMENTAL);
}
}
else rrdset_next(st);
for(l = 0; l < lines ;l++) {
- if(!irrs[l].used) continue;
- rrddim_set(st, irrs[l].id, irrs[l].value[c]);
+ struct interrupt *irr = irrindex(irrs, l, cpus);
+ if(!irr->used) continue;
+ rrddim_set(st, irr->id, irr->value[c]);
}
rrdset_done(st);
}
#include "plugin_proc.h"
#include "log.h"
-#define MAX_INTERRUPTS 256
-#define MAX_INTERRUPT_CPUS 256
#define MAX_INTERRUPT_NAME 50
struct interrupt {
int used;
char *id;
char name[MAX_INTERRUPT_NAME + 1];
- unsigned long long value[MAX_INTERRUPT_CPUS];
unsigned long long total;
+ unsigned long long value[];
};
-static struct interrupt *alloc_interrupts(int lines) {
+// since each interrupt is variable in size
+// we use this to calculate its record size
+#define recordsize(cpus) (sizeof(struct interrupt) + (cpus * sizeof(unsigned long long)))
+
+// given a base, get a pointer to each record
+#define irrindex(base, line, cpus) ((struct interrupt *)&((char *)(base))[line * recordsize(cpus)])
+
+static inline struct interrupt *get_interrupts_array(int lines, int cpus) {
static struct interrupt *irrs = NULL;
- static int alloced = 0;
+ static int allocated = 0;
- if(lines < alloced) return irrs;
+ if(lines < allocated) return irrs;
else {
- irrs = (struct interrupt *)realloc(irrs, lines * sizeof(struct interrupt));
+ irrs = (struct interrupt *)realloc(irrs, lines * recordsize(cpus));
if(!irrs)
fatal("Cannot allocate memory for %d interrupts", lines);
- alloced = lines;
+ allocated = lines;
}
return irrs;
if(strncmp(procfile_lineword(ff, 0, w), "CPU", 3) == 0)
cpus++;
}
-
- if(cpus > MAX_INTERRUPT_CPUS) cpus = MAX_INTERRUPT_CPUS;
}
if(!cpus) {
}
// allocate the size we need;
- irrs = alloc_interrupts(lines);
+ irrs = get_interrupts_array(lines, cpus);
irrs[0].used = 0;
// loop through all lines
for(l = 1; l < lines ;l++) {
- struct interrupt *irr = &irrs[l];
+ struct interrupt *irr = irrindex(irrs, l, cpus);
irr->used = 0;
irr->total = 0;
st = rrdset_create("system", "softirqs", NULL, "softirqs", NULL, "System softirqs", "softirqs/s", 950, update_every, RRDSET_TYPE_STACKED);
for(l = 0; l < lines ;l++) {
- if(!irrs[l].used) continue;
- rrddim_add(st, irrs[l].id, irrs[l].name, 1, 1, RRDDIM_INCREMENTAL);
+ struct interrupt *irr = irrindex(irrs, l, cpus);
+ if(!irr->used) continue;
+ rrddim_add(st, irr->id, irr->name, 1, 1, RRDDIM_INCREMENTAL);
}
}
else rrdset_next(st);
for(l = 0; l < lines ;l++) {
- if(!irrs[l].used) continue;
- rrddim_set(st, irrs[l].id, irrs[l].total);
+ struct interrupt *irr = irrindex(irrs, l, cpus);
+ if(!irr->used) continue;
+ rrddim_set(st, irr->id, irr->total);
}
rrdset_done(st);
// find if everything is zero
unsigned long long core_sum = 0 ;
for(l = 0; l < lines ;l++) {
- if(!irrs[l].used) continue;
- core_sum += irrs[l].value[c];
+ struct interrupt *irr = irrindex(irrs, l, cpus);
+ if(!irr->used) continue;
+ core_sum += irr->value[c];
}
if(core_sum == 0) continue; // try next core
st = rrdset_create("cpu", id, name, "softirqs", "cpu.softirqs", title, "softirqs/s", 3000 + c, update_every, RRDSET_TYPE_STACKED);
for(l = 0; l < lines ;l++) {
- if(!irrs[l].used) continue;
- rrddim_add(st, irrs[l].id, irrs[l].name, 1, 1, RRDDIM_INCREMENTAL);
+ struct interrupt *irr = irrindex(irrs, l, cpus);
+ if(!irr->used) continue;
+ rrddim_add(st, irr->id, irr->name, 1, 1, RRDDIM_INCREMENTAL);
}
}
else rrdset_next(st);
for(l = 0; l < lines ;l++) {
- if(!irrs[l].used) continue;
- rrddim_set(st, irrs[l].id, irrs[l].value[c]);
+ struct interrupt *irr = irrindex(irrs, l, cpus);
+ if(!irr->used) continue;
+ rrddim_set(st, irr->id, irr->value[c]);
}
rrdset_done(st);
}
if(!m) fatal("Registry: cannot allocate memory for new machine '%s'", machine_guid);
strncpy(m->guid, machine_guid, 36);
+ m->guid[36] = '\0';
debug(D_REGISTRY, "Registry: registry_machine_allocate('%s'): creating dictionary of urls", machine_guid);
m->urls = dictionary_create(DICTIONARY_FLAGS);
}
size_t len = 0;
+ buf[4096] = '\0';
while((s = fgets_trim_len(buf, 4096, fp, &len))) {
line++;