Imported Upstream version 1.3.0+dfsgupstream/1.3.0+dfsg

1 files changed, 153 insertions, 169 deletions

diff --git a/src/proc_interrupts.c b/src/proc_interrupts.c
index ad00c202..fe0e9b1a 100644
--- a/src/proc_interrupts.c
+++ b/src/proc_interrupts.c
@@ -1,26 +1,13 @@
-#ifdef HAVE_CONFIG_H
-#include <config.h>
-#endif
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <ctype.h>
-
 #include "common.h"
-#include "appconfig.h"
-#include "procfile.h"
-#include "rrd.h"
-#include "plugin_proc.h"
-#include "log.h"
 
 #define MAX_INTERRUPT_NAME 50
 
 struct interrupt {
-	int used;
-	char *id;
-	char name[MAX_INTERRUPT_NAME + 1];
-	unsigned long long total;
-	unsigned long long value[];
+    int used;
+    char *id;
+    char name[MAX_INTERRUPT_NAME + 1];
+    unsigned long long total;
+    unsigned long long value[];
 };
 
 // since each interrupt is variable in size
@@ -31,160 +18,157 @@ struct interrupt {
 #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 allocated = 0;
-
-	if(lines < allocated) return irrs;
-	else {
-		irrs = (struct interrupt *)realloc(irrs, lines * recordsize(cpus));
-		if(!irrs)
-			fatal("Cannot allocate memory for %d interrupts", lines);
+    static struct interrupt *irrs = NULL;
+    static int allocated = 0;
 
-		allocated = lines;
-	}
+    if(lines < allocated) return irrs;
+    else {
+        irrs = (struct interrupt *)reallocz(irrs, lines * recordsize(cpus));
+        allocated = lines;
+    }
 
-	return irrs;
+    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(do_per_core == -1) do_per_core = config_get_boolean("plugin:proc:/proc/interrupts", "interrupts per core", 1);
-
-	if(!ff) {
-		char filename[FILENAME_MAX + 1];
-		snprintfz(filename, FILENAME_MAX, "%s%s", global_host_prefix, "/proc/interrupts");
-		ff = procfile_open(config_get("plugin:proc:/proc/interrupts", "filename to monitor", filename), " \t", PROCFILE_FLAG_DEFAULT);
-	}
-	if(!ff) return 1;
-
-	ff = procfile_readall(ff);
-	if(!ff) return 0; // we return 0, so that we will retry to open it next time
-
-	uint32_t lines = procfile_lines(ff), l;
-	uint32_t words = procfile_linewords(ff, 0), w;
-
-	if(!lines) {
-		error("Cannot read /proc/interrupts, zero lines reported.");
-		return 1;
-	}
-
-	// find how many CPUs are there
-	if(cpus == -1) {
-		cpus = 0;
-		for(w = 0; w < words ; w++) {
-			if(strncmp(procfile_lineword(ff, 0, w), "CPU", 3) == 0)
-				cpus++;
-		}
-	}
-
-	if(!cpus) {
-		error("PLUGIN: PROC_INTERRUPTS: Cannot find the number of CPUs in /proc/interrupts");
-		return 1;
-	}
-
-	// allocate the size we need;
-	irrs = get_interrupts_array(lines, cpus);
-	irrs[0].used = 0;
-
-	// loop through all lines
-	for(l = 1; l < lines ;l++) {
-		struct interrupt *irr = irrindex(irrs, l, cpus);
-		irr->used = 0;
-		irr->total = 0;
-
-		words = procfile_linewords(ff, l);
-		if(!words) continue;
-
-		irr->id = procfile_lineword(ff, l, 0);
-		if(!irr->id || !irr->id[0]) continue;
-
-		int idlen = strlen(irr->id);
-		if(irr->id[idlen - 1] == ':')
-			irr->id[idlen - 1] = '\0';
-
-		int c;
-		for(c = 0; c < cpus ;c++) {
-			if((c + 1) < (int)words)
-				irr->value[c] = strtoull(procfile_lineword(ff, l, (uint32_t)(c + 1)), NULL, 10);
-			else
-				irr->value[c] = 0;
-
-			irr->total += irr->value[c];
-		}
-
-		if(isdigit(irr->id[0]) && (uint32_t)(cpus + 2) < words) {
-			strncpyz(irr->name, procfile_lineword(ff, l, words - 1), MAX_INTERRUPT_NAME);
-			int nlen = strlen(irr->name);
-			if(nlen < (MAX_INTERRUPT_NAME-1)) {
-				irr->name[nlen] = '_';
-				strncpyz(&irr->name[nlen + 1], irr->id, MAX_INTERRUPT_NAME - nlen);
-			}
-		}
-		else {
-			strncpyz(irr->name, irr->id, MAX_INTERRUPT_NAME);
-		}
-
-		irr->used = 1;
-	}
-
-	RRDSET *st;
-
-	// --------------------------------------------------------------------
-
-	st = rrdset_find_bytype("system", "interrupts");
-	if(!st) {
-		st = rrdset_create("system", "interrupts", NULL, "interrupts", NULL, "System interrupts", "interrupts/s", 1000, update_every, RRDSET_TYPE_STACKED);
-
-		for(l = 0; l < lines ;l++) {
-			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++) {
-		struct interrupt *irr = irrindex(irrs, l, cpus);
-		if(!irr->used) continue;
-		rrddim_set(st, irr->id, irr->total);
-	}
-	rrdset_done(st);
-
-	if(do_per_core) {
-		int c;
-
-		for(c = 0; c < cpus ; c++) {
-			char id[256+1];
-			snprintfz(id, 256, "cpu%d_interrupts", c);
-
-			st = rrdset_find_bytype("cpu", id);
-			if(!st) {
-				char name[256+1], title[256+1];
-				snprintfz(name, 256, "cpu%d_interrupts", c);
-				snprintfz(title, 256, "CPU%d Interrupts", c);
-				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++) {
-					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++) {
-				struct interrupt *irr = irrindex(irrs, l, cpus);
-				if(!irr->used) continue;
-				rrddim_set(st, irr->id, irr->value[c]);
-			}
-			rrdset_done(st);
-		}
-	}
-
-	return 0;
+    static procfile *ff = NULL;
+    static int cpus = -1, do_per_core = -1;
+    struct interrupt *irrs = NULL;
+
+    if(dt) {};
+
+    if(do_per_core == -1) do_per_core = config_get_boolean("plugin:proc:/proc/interrupts", "interrupts per core", 1);
+
+    if(!ff) {
+        char filename[FILENAME_MAX + 1];
+        snprintfz(filename, FILENAME_MAX, "%s%s", global_host_prefix, "/proc/interrupts");
+        ff = procfile_open(config_get("plugin:proc:/proc/interrupts", "filename to monitor", filename), " \t", PROCFILE_FLAG_DEFAULT);
+    }
+    if(!ff) return 1;
+
+    ff = procfile_readall(ff);
+    if(!ff) return 0; // we return 0, so that we will retry to open it next time
+
+    uint32_t lines = procfile_lines(ff), l;
+    uint32_t words = procfile_linewords(ff, 0), w;
+
+    if(!lines) {
+        error("Cannot read /proc/interrupts, zero lines reported.");
+        return 1;
+    }
+
+    // find how many CPUs are there
+    if(cpus == -1) {
+        cpus = 0;
+        for(w = 0; w < words ; w++) {
+            if(strncmp(procfile_lineword(ff, 0, w), "CPU", 3) == 0)
+                cpus++;
+        }
+    }
+
+    if(!cpus) {
+        error("PLUGIN: PROC_INTERRUPTS: Cannot find the number of CPUs in /proc/interrupts");
+        return 1;
+    }
+
+    // allocate the size we need;
+    irrs = get_interrupts_array(lines, cpus);
+    irrs[0].used = 0;
+
+    // loop through all lines
+    for(l = 1; l < lines ;l++) {
+        struct interrupt *irr = irrindex(irrs, l, cpus);
+        irr->used = 0;
+        irr->total = 0;
+
+        words = procfile_linewords(ff, l);
+        if(!words) continue;
+
+        irr->id = procfile_lineword(ff, l, 0);
+        if(!irr->id || !irr->id[0]) continue;
+
+        int idlen = strlen(irr->id);
+        if(irr->id[idlen - 1] == ':')
+            irr->id[idlen - 1] = '\0';
+
+        int c;
+        for(c = 0; c < cpus ;c++) {
+            if((c + 1) < (int)words)
+                irr->value[c] = strtoull(procfile_lineword(ff, l, (uint32_t)(c + 1)), NULL, 10);
+            else
+                irr->value[c] = 0;
+
+            irr->total += irr->value[c];
+        }
+
+        if(isdigit(irr->id[0]) && (uint32_t)(cpus + 2) < words) {
+            strncpyz(irr->name, procfile_lineword(ff, l, words - 1), MAX_INTERRUPT_NAME);
+            int nlen = strlen(irr->name);
+            if(nlen < (MAX_INTERRUPT_NAME-1)) {
+                irr->name[nlen] = '_';
+                strncpyz(&irr->name[nlen + 1], irr->id, MAX_INTERRUPT_NAME - nlen);
+            }
+        }
+        else {
+            strncpyz(irr->name, irr->id, MAX_INTERRUPT_NAME);
+        }
+
+        irr->used = 1;
+    }
+
+    RRDSET *st;
+
+    // --------------------------------------------------------------------
+
+    st = rrdset_find_bytype("system", "interrupts");
+    if(!st) {
+        st = rrdset_create("system", "interrupts", NULL, "interrupts", NULL, "System interrupts", "interrupts/s", 1000, update_every, RRDSET_TYPE_STACKED);
+
+        for(l = 0; l < lines ;l++) {
+            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++) {
+        struct interrupt *irr = irrindex(irrs, l, cpus);
+        if(!irr->used) continue;
+        rrddim_set(st, irr->id, irr->total);
+    }
+    rrdset_done(st);
+
+    if(do_per_core) {
+        int c;
+
+        for(c = 0; c < cpus ; c++) {
+            char id[256+1];
+            snprintfz(id, 256, "cpu%d_interrupts", c);
+
+            st = rrdset_find_bytype("cpu", id);
+            if(!st) {
+                char name[256+1], title[256+1];
+                snprintfz(name, 256, "cpu%d_interrupts", c);
+                snprintfz(title, 256, "CPU%d Interrupts", c);
+                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++) {
+                    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++) {
+                struct interrupt *irr = irrindex(irrs, l, cpus);
+                if(!irr->used) continue;
+                rrddim_set(st, irr->id, irr->value[c]);
+            }
+            rrdset_done(st);
+        }
+    }
+
+    return 0;
 }