diff options
Diffstat (limited to 'sysutils/sensors-applet/files/smartctl-sensors-interface.c')
| -rw-r--r-- | sysutils/sensors-applet/files/smartctl-sensors-interface.c | 198 |
1 files changed, 198 insertions, 0 deletions
diff --git a/sysutils/sensors-applet/files/smartctl-sensors-interface.c b/sysutils/sensors-applet/files/smartctl-sensors-interface.c new file mode 100644 index 000000000..c3c4b3de8 --- /dev/null +++ b/sysutils/sensors-applet/files/smartctl-sensors-interface.c @@ -0,0 +1,198 @@ +/* + * Copyright (C) 2006 Jean-Yves Lefort <jylefort@FreeBSD.org> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +#include <stdlib.h> +#include <time.h> + +#ifdef HAVE_CONFIG_H +#include "config.h" +#endif /* HAVE_CONFIG_H */ + +#include "smartctl-sensors-interface.h" +#include "sensors-applet.h" + +/* be gentle */ +#define POLL_INTERVAL 30 + +typedef struct +{ + time_t last_poll; + double value; +} SensorInfo; + +static GHashTable *sensors; + +static gboolean +smartctl_sensors_interface_run (const char *command, + const char *device, + char **output) +{ + char *argv[4]; + GSpawnFlags flags = G_SPAWN_STDERR_TO_DEV_NULL; + char *_output = NULL; + int exit_status; + + g_return_val_if_fail(command != NULL, FALSE); + g_return_val_if_fail(device != NULL, FALSE); + + argv[0] = SMARTCTL_HELPER; + argv[1] = (char *) command; + argv[2] = (char *) device; + argv[3] = NULL; + + if (! output) + flags |= G_SPAWN_STDOUT_TO_DEV_NULL; + + if (g_spawn_sync(NULL, argv, NULL, flags, NULL, NULL, output ? &_output : NULL, NULL, &exit_status, NULL)) + { + if (exit_status == 0) + { + if (output) + *output = _output; + + return TRUE; + } + g_free(_output); + } + + return FALSE; +} + +static gboolean +smartctl_sensors_interface_get_temperature (const char *device, double *temp) +{ + char *output; + char **lines; + int i; + gboolean status = FALSE; + + g_return_val_if_fail(device != NULL, FALSE); + + if (! smartctl_sensors_interface_run("attributes", device, &output)) + return FALSE; + + lines = g_strsplit(output, "\n", 0); + g_free(output); + + for (i = 0; lines[i]; i++) + if (g_str_has_prefix(lines[i], "194 Temperature_Celsius")) + { + char *p; + + p = strrchr(lines[i], ' '); + if (p) + { + double _temp; + char *end; + + _temp = strtod(p + 1, &end); + if (*end == 0) + { + status = TRUE; + if (temp) + *temp = _temp; + } + } + + break; + } + g_strfreev(lines); + + return status; +} + +static void +smartctl_sensors_interface_disk_init (SensorsApplet *sensors_applet, + const char *disk, + int unit) +{ + char *device; + + g_return_if_fail(sensors_applet != NULL); + g_return_if_fail(disk != NULL); + + device = g_strdup_printf("/dev/%s%i", disk, unit); + if (g_file_test(device, G_FILE_TEST_EXISTS) + && smartctl_sensors_interface_run("enable", device, NULL) + && smartctl_sensors_interface_get_temperature(device, NULL)) + { + char *path; + char *label; + + path = g_strdup_printf("/smartctl%s", device); + label = g_strdup_printf("%s%i", disk, unit); + + sensors_applet_add_sensor(sensors_applet, + path, + device, + label, + SMARTCTL, + TRUE, + TEMP_SENSOR, + HDD_ICON); + + g_free(path); + g_free(label); + } + g_free(device); +} + +void +smartctl_sensors_interface_init (SensorsApplet *sensors_applet) +{ + int i; + + sensors = g_hash_table_new(g_str_hash, g_str_equal); + + sensors_applet_register_sensors_interface(sensors_applet, + SMARTCTL, + smartctl_sensors_interface_get_sensor_value); + + /* smartctl supports ad(4) and da(4) disks */ + for (i = 0; i < 10; i++) + { + smartctl_sensors_interface_disk_init(sensors_applet, "ad", i); + smartctl_sensors_interface_disk_init(sensors_applet, "da", i); + } +} + +double +smartctl_sensors_interface_get_sensor_value (const gchar *path, + const gchar *id, + SensorType type, + GError **error) +{ + SensorInfo *info; + time_t now; + + info = g_hash_table_lookup(sensors, id); + if (! info) + { + info = g_new0(SensorInfo, 1); + g_hash_table_insert(sensors, g_strdup(id), info); + } + + now = time(NULL); + if (now == -1 || now - info->last_poll >= POLL_INTERVAL) + { + info->last_poll = now; + smartctl_sensors_interface_get_temperature(id, &info->value); + } + + return info->value; +} |