X-Git-Url: https://git.octo.it/?a=blobdiff_plain;f=src%2Fcpufreq.c;h=3738b54c2f450eb8f3f4e52994f9180b369d3850;hb=98fef31471541485002b5b87afa8991a280190d6;hp=008ef39f1029b128c0d237994cb4293e5c9a9dff;hpb=2d897a731bd23f7a33b89e7b7e3004b6b26b5a94;p=collectd.git diff --git a/src/cpufreq.c b/src/cpufreq.c index 008ef39f..3738b54c 100644 --- a/src/cpufreq.c +++ b/src/cpufreq.c @@ -26,30 +26,10 @@ #define MODULE_NAME "cpufreq" -#if defined(KERNEL_LINUX) -# define CPUFREQ_HAVE_READ 1 -#else -# define CPUFREQ_HAVE_READ 0 -#endif - -static data_source_t data_source[1] = -{ - {"value", DS_TYPE_GAUGE, 0, NAN} -}; - -static data_set_t data_set = -{ - "cpufreq", 1, data_source -}; - -#if CPUFREQ_HAVE_READ -#ifdef KERNEL_LINUX static int num_cpu = 0; -#endif static int cpufreq_init (void) { -#ifdef KERNEL_LINUX int status; char filename[256]; @@ -57,10 +37,10 @@ static int cpufreq_init (void) while (1) { - status = snprintf (filename, sizeof (filename), + status = ssnprintf (filename, sizeof (filename), "/sys/devices/system/cpu/cpu%d/cpufreq/" "scaling_cur_freq", num_cpu); - if (status < 1 || status >= sizeof (filename)) + if ((status < 1) || ((unsigned int)status >= sizeof (filename))) break; if (access (filename, R_OK)) @@ -69,12 +49,11 @@ static int cpufreq_init (void) num_cpu++; } - syslog (LOG_INFO, "cpufreq plugin: Found %d CPU%s", num_cpu, + INFO ("cpufreq plugin: Found %d CPU%s", num_cpu, (num_cpu == 1) ? "" : "s"); if (num_cpu == 0) plugin_unregister_read ("cpufreq"); -#endif /* defined(KERNEL_LINUX) */ return (0); } /* int cpufreq_init */ @@ -89,17 +68,17 @@ static void cpufreq_submit (int cpu_num, double value) vl.values = values; vl.values_len = 1; vl.time = time (NULL); - strcpy (vl.host, hostname_g); - strcpy (vl.plugin, "cpufreq"); - snprintf (vl.type_instance, sizeof (vl.type_instance), + sstrncpy (vl.host, hostname_g, sizeof (vl.host)); + sstrncpy (vl.plugin, "cpufreq", sizeof (vl.plugin)); + sstrncpy (vl.type, "cpufreq", sizeof (vl.type)); + ssnprintf (vl.type_instance, sizeof (vl.type_instance), "%i", cpu_num); - plugin_dispatch_values ("cpufreq", &vl); + plugin_dispatch_values (&vl); } static int cpufreq_read (void) { -#ifdef KERNEL_LINUX int status; unsigned long long val; int i = 0; @@ -109,46 +88,51 @@ static int cpufreq_read (void) for (i = 0; i < num_cpu; i++) { - status = snprintf (filename, sizeof (filename), + status = ssnprintf (filename, sizeof (filename), "/sys/devices/system/cpu/cpu%d/cpufreq/" "scaling_cur_freq", i); - if (status < 1 || status >= sizeof (filename)) + if ((status < 1) || ((unsigned int)status >= sizeof (filename))) return (-1); if ((fp = fopen (filename, "r")) == NULL) { - syslog (LOG_WARNING, "cpufreq: fopen: %s", strerror (errno)); + char errbuf[1024]; + WARNING ("cpufreq: fopen (%s): %s", filename, + sstrerror (errno, errbuf, + sizeof (errbuf))); return (-1); } if (fgets (buffer, 16, fp) == NULL) { - syslog (LOG_WARNING, "cpufreq: fgets: %s", strerror (errno)); + char errbuf[1024]; + WARNING ("cpufreq: fgets: %s", + sstrerror (errno, errbuf, + sizeof (errbuf))); fclose (fp); return (-1); } if (fclose (fp)) - syslog (LOG_WARNING, "cpufreq: fclose: %s", strerror (errno)); + { + char errbuf[1024]; + WARNING ("cpufreq: fclose: %s", + sstrerror (errno, errbuf, + sizeof (errbuf))); + } + /* You're seeing correctly: The file is reporting kHz values.. */ val = atoll (buffer) * 1000; cpufreq_submit (i, val); } -#endif /* defined(KERNEL_LINUX) */ return (0); } /* int cpufreq_read */ -#endif /* CPUFREQ_HAVE_READ */ -#undef BUFSIZE void module_register (void) { - plugin_register_data_set (&data_set); - -#if CPUFREQ_HAVE_READ plugin_register_init ("cpufreq", cpufreq_init); plugin_register_read ("cpufreq", cpufreq_read); -#endif /* CPUFREQ_HAVE_READ */ }