#include "utils_ignorelist.h"
#if !KERNEL_LINUX
-# error "No applicable input method."
+#error "No applicable input method."
#endif
/*
* (Module-)Global variables
*/
-static const char *config_keys[] =
-{
- "Irq",
- "IgnoreSelected"
-};
-static int config_keys_num = STATIC_ARRAY_SIZE (config_keys);
+static const char *config_keys[] = {"Irq", "IgnoreSelected"};
+static int config_keys_num = STATIC_ARRAY_SIZE(config_keys);
static ignorelist_t *ignorelist = NULL;
/*
* Private functions
*/
-static int irq_config (const char *key, const char *value)
-{
- if (ignorelist == NULL)
- ignorelist = ignorelist_create (/* invert = */ 1);
-
- if (strcasecmp (key, "Irq") == 0)
- {
- ignorelist_add (ignorelist, value);
- }
- else if (strcasecmp (key, "IgnoreSelected") == 0)
- {
- int invert = 1;
- if (IS_TRUE (value))
- invert = 0;
- ignorelist_set_invert (ignorelist, invert);
- }
- else
- {
- return (-1);
- }
-
- return (0);
+static int irq_config(const char *key, const char *value) {
+ if (ignorelist == NULL)
+ ignorelist = ignorelist_create(/* invert = */ 1);
+
+ if (strcasecmp(key, "Irq") == 0) {
+ ignorelist_add(ignorelist, value);
+ } else if (strcasecmp(key, "IgnoreSelected") == 0) {
+ int invert = 1;
+ if (IS_TRUE(value))
+ invert = 0;
+ ignorelist_set_invert(ignorelist, invert);
+ } else {
+ return -1;
+ }
+
+ return 0;
}
-static void irq_submit (const char *irq_name, derive_t value)
-{
- value_list_t vl = VALUE_LIST_INIT;
+static void irq_submit(const char *irq_name, derive_t value) {
+ value_list_t vl = VALUE_LIST_INIT;
- if (ignorelist_match (ignorelist, irq_name) != 0)
- return;
+ if (ignorelist_match(ignorelist, irq_name) != 0)
+ return;
- vl.values = &(value_t) { .derive = value };
- vl.values_len = 1;
- sstrncpy (vl.host, hostname_g, sizeof (vl.host));
- sstrncpy (vl.plugin, "irq", sizeof (vl.plugin));
- sstrncpy (vl.type, "irq", sizeof (vl.type));
- sstrncpy (vl.type_instance, irq_name, sizeof (vl.type_instance));
+ vl.values = &(value_t){.derive = value};
+ vl.values_len = 1;
+ sstrncpy(vl.plugin, "irq", sizeof(vl.plugin));
+ sstrncpy(vl.type, "irq", sizeof(vl.type));
+ sstrncpy(vl.type_instance, irq_name, sizeof(vl.type_instance));
- plugin_dispatch_values (&vl);
+ plugin_dispatch_values(&vl);
} /* void irq_submit */
-static int irq_read (void)
-{
- FILE *fh;
- char buffer[1024];
- int cpu_count;
- char *fields[256];
-
- /*
- * Example content:
- * CPU0 CPU1 CPU2 CPU3
- * 0: 2574 1 3 2 IO-APIC-edge timer
- * 1: 102553 158669 218062 70587 IO-APIC-edge i8042
- * 8: 0 0 0 1 IO-APIC-edge rtc0
- */
- fh = fopen ("/proc/interrupts", "r");
- if (fh == NULL)
- {
- char errbuf[1024];
- ERROR ("irq plugin: fopen (/proc/interrupts): %s",
- sstrerror (errno, errbuf, sizeof (errbuf)));
- return (-1);
- }
-
- /* Get CPU count from the first line */
- if(fgets (buffer, sizeof (buffer), fh) != NULL) {
- cpu_count = strsplit (buffer, fields,
- STATIC_ARRAY_SIZE (fields));
- } else {
- ERROR ("irq plugin: unable to get CPU count from first line "
- "of /proc/interrupts");
- fclose (fh);
- return (-1);
- }
-
- while (fgets (buffer, sizeof (buffer), fh) != NULL)
- {
- char *irq_name;
- size_t irq_name_len;
- derive_t irq_value;
- int i;
- int fields_num;
- int irq_values_to_parse;
-
- fields_num = strsplit (buffer, fields,
- STATIC_ARRAY_SIZE (fields));
- if (fields_num < 2)
- continue;
-
- /* Parse this many numeric fields, skip the rest
- * (+1 because first there is a name of irq in each line) */
- if (fields_num >= cpu_count + 1)
- irq_values_to_parse = cpu_count;
- else
- irq_values_to_parse = fields_num - 1;
-
- /* First field is irq name and colon */
- irq_name = fields[0];
- irq_name_len = strlen (irq_name);
- if (irq_name_len < 2)
- continue;
-
- /* Check if irq name ends with colon.
- * Otherwise it's a header. */
- if (irq_name[irq_name_len - 1] != ':')
- continue;
-
- /* Is it the the ARM fast interrupt (FIQ)? */
- if (irq_name_len == 4 && (strncmp(irq_name, "FIQ:", 4) == 0))
- continue;
-
- irq_name[irq_name_len - 1] = 0;
- irq_name_len--;
-
- irq_value = 0;
- for (i = 1; i <= irq_values_to_parse; i++)
- {
- /* Per-CPU value */
- value_t v;
- int status;
-
- status = parse_value (fields[i], &v, DS_TYPE_DERIVE);
- if (status != 0)
- break;
-
- irq_value += v.derive;
- } /* for (i) */
-
- /* No valid fields -> do not submit anything. */
- if (i <= 1)
- continue;
-
- irq_submit (irq_name, irq_value);
- }
-
- fclose (fh);
-
- return (0);
+static int irq_read(void) {
+ FILE *fh;
+ char buffer[1024];
+ int cpu_count;
+ char *fields[256];
+
+ /*
+ * Example content:
+ * CPU0 CPU1 CPU2 CPU3
+ * 0: 2574 1 3 2 IO-APIC-edge timer
+ * 1: 102553 158669 218062 70587 IO-APIC-edge i8042
+ * 8: 0 0 0 1 IO-APIC-edge rtc0
+ */
+ fh = fopen("/proc/interrupts", "r");
+ if (fh == NULL) {
+ char errbuf[1024];
+ ERROR("irq plugin: fopen (/proc/interrupts): %s",
+ sstrerror(errno, errbuf, sizeof(errbuf)));
+ return -1;
+ }
+
+ /* Get CPU count from the first line */
+ if (fgets(buffer, sizeof(buffer), fh) != NULL) {
+ cpu_count = strsplit(buffer, fields, STATIC_ARRAY_SIZE(fields));
+ } else {
+ ERROR("irq plugin: unable to get CPU count from first line "
+ "of /proc/interrupts");
+ fclose(fh);
+ return -1;
+ }
+
+ while (fgets(buffer, sizeof(buffer), fh) != NULL) {
+ char *irq_name;
+ size_t irq_name_len;
+ derive_t irq_value;
+ int i;
+ int fields_num;
+ int irq_values_to_parse;
+
+ fields_num = strsplit(buffer, fields, STATIC_ARRAY_SIZE(fields));
+ if (fields_num < 2)
+ continue;
+
+ /* Parse this many numeric fields, skip the rest
+ * (+1 because first there is a name of irq in each line) */
+ if (fields_num >= cpu_count + 1)
+ irq_values_to_parse = cpu_count;
+ else
+ irq_values_to_parse = fields_num - 1;
+
+ /* First field is irq name and colon */
+ irq_name = fields[0];
+ irq_name_len = strlen(irq_name);
+ if (irq_name_len < 2)
+ continue;
+
+ /* Check if irq name ends with colon.
+ * Otherwise it's a header. */
+ if (irq_name[irq_name_len - 1] != ':')
+ continue;
+
+ /* Is it the the ARM fast interrupt (FIQ)? */
+ if (irq_name_len == 4 && (strncmp(irq_name, "FIQ:", 4) == 0))
+ continue;
+
+ irq_name[irq_name_len - 1] = 0;
+ irq_name_len--;
+
+ irq_value = 0;
+ for (i = 1; i <= irq_values_to_parse; i++) {
+ /* Per-CPU value */
+ value_t v;
+ int status;
+
+ status = parse_value(fields[i], &v, DS_TYPE_DERIVE);
+ if (status != 0)
+ break;
+
+ irq_value += v.derive;
+ } /* for (i) */
+
+ /* No valid fields -> do not submit anything. */
+ if (i <= 1)
+ continue;
+
+ irq_submit(irq_name, irq_value);
+ }
+
+ fclose(fh);
+
+ return 0;
} /* int irq_read */
-void module_register (void)
-{
- plugin_register_config ("irq", irq_config,
- config_keys, config_keys_num);
- plugin_register_read ("irq", irq_read);
+void module_register(void) {
+ plugin_register_config("irq", irq_config, config_keys, config_keys_num);
+ plugin_register_read("irq", irq_read);
} /* void module_register */
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