diff options
Diffstat (limited to 'cpufreq/src/cpufreq-utils.c')
| -rw-r--r-- | cpufreq/src/cpufreq-utils.c | 474 |
1 files changed, 238 insertions, 236 deletions
diff --git a/cpufreq/src/cpufreq-utils.c b/cpufreq/src/cpufreq-utils.c index 7dd358fa..a49d27c6 100644 --- a/cpufreq/src/cpufreq-utils.c +++ b/cpufreq/src/cpufreq-utils.c @@ -39,70 +39,70 @@ guint cpufreq_utils_get_n_cpus (void) { - gint mcpu = -1; - gchar *file = NULL; - static guint n_cpus = 0; - - if (n_cpus > 0) - return n_cpus; - - do { - if (file) - g_free (file); - mcpu ++; - file = g_strdup_printf ("/sys/devices/system/cpu/cpu%d", mcpu); - } while (g_file_test (file, G_FILE_TEST_EXISTS)); - g_free (file); - - if (mcpu >= 0) { - n_cpus = (guint)mcpu; - return mcpu; - } - - mcpu = -1; - file = NULL; - do { - if (file) - g_free (file); - mcpu ++; - file = g_strdup_printf ("/proc/sys/cpu/%d", mcpu); - } while (g_file_test (file, G_FILE_TEST_EXISTS)); - g_free (file); - - if (mcpu >= 0) { - n_cpus = (guint)mcpu; - return mcpu; - } - - n_cpus = 1; - - return 1; + gint mcpu = -1; + gchar *file = NULL; + static guint n_cpus = 0; + + if (n_cpus > 0) + return n_cpus; + + do { + if (file) + g_free (file); + mcpu ++; + file = g_strdup_printf ("/sys/devices/system/cpu/cpu%d", mcpu); + } while (g_file_test (file, G_FILE_TEST_EXISTS)); + g_free (file); + + if (mcpu >= 0) { + n_cpus = (guint)mcpu; + return mcpu; + } + + mcpu = -1; + file = NULL; + do { + if (file) + g_free (file); + mcpu ++; + file = g_strdup_printf ("/proc/sys/cpu/%d", mcpu); + } while (g_file_test (file, G_FILE_TEST_EXISTS)); + g_free (file); + + if (mcpu >= 0) { + n_cpus = (guint)mcpu; + return mcpu; + } + + n_cpus = 1; + + return 1; } void cpufreq_utils_display_error (const gchar *message, - const gchar *secondary) + const gchar *secondary) { - GtkWidget *dialog; - - g_return_if_fail (message != NULL); - - dialog = gtk_message_dialog_new (NULL, - GTK_DIALOG_DESTROY_WITH_PARENT, - GTK_MESSAGE_ERROR, - GTK_BUTTONS_OK, - "%s", message); - if (secondary) { - gtk_message_dialog_format_secondary_text (GTK_MESSAGE_DIALOG (dialog), - "%s", secondary); - } - - gtk_window_set_title (GTK_WINDOW (dialog), ""); /* as per HIG */ - gtk_window_set_skip_taskbar_hint (GTK_WINDOW (dialog), TRUE); - g_signal_connect (G_OBJECT (dialog), - "response", - G_CALLBACK (gtk_widget_destroy), NULL); - gtk_widget_show (dialog); + GtkWidget *dialog; + + g_return_if_fail (message != NULL); + + dialog = gtk_message_dialog_new (NULL, + GTK_DIALOG_DESTROY_WITH_PARENT, + GTK_MESSAGE_ERROR, + GTK_BUTTONS_OK, + "%s", message); + if (secondary) { + gtk_message_dialog_format_secondary_text (GTK_MESSAGE_DIALOG (dialog), + "%s", secondary); + } + + gtk_window_set_title (GTK_WINDOW (dialog), ""); /* as per HIG */ + gtk_window_set_skip_taskbar_hint (GTK_WINDOW (dialog), TRUE); + g_signal_connect (G_OBJECT (dialog), + "response", + G_CALLBACK (gtk_widget_destroy), NULL); + gtk_widget_show (dialog); } #ifdef HAVE_POLKIT @@ -111,222 +111,224 @@ cpufreq_utils_display_error (const gchar *message, static gboolean selector_is_available (void) { - GDBusProxy *proxy; - static GDBusConnection *system_bus = NULL; - GError *error = NULL; - GVariant *reply; - gboolean result; - - if (!system_bus) { - system_bus = g_bus_get_sync (G_BUS_TYPE_SYSTEM, NULL, &error); - if (!system_bus) { - g_warning ("%s", error->message); - g_error_free (error); - - return FALSE; - } - } - - proxy = g_dbus_proxy_new_sync (system_bus, - G_DBUS_PROXY_FLAGS_NONE, - NULL, - "org.mate.CPUFreqSelector", - "/org/mate/cpufreq_selector/selector", - "org.mate.CPUFreqSelector", - NULL, - &error); - - if (!proxy) { - g_warning ("%s", error->message); - g_error_free (error); - - return FALSE; - } - - reply = g_dbus_proxy_call_sync (proxy, - "CanSet", - NULL, - G_DBUS_CALL_FLAGS_NONE, - -1, - NULL, - &error); - - if (!reply) { - g_warning ("Error calling org.mate.CPUFreqSelector.CanSet: %s", error->message); - g_error_free (error); - result = FALSE; - } else { - g_variant_get (reply, "(b)", &result); - g_variant_unref (reply); - } - - g_object_unref (proxy); - - return result; + GDBusProxy *proxy; + static GDBusConnection *system_bus = NULL; + GError *error = NULL; + GVariant *reply; + gboolean result; + + if (!system_bus) { + system_bus = g_bus_get_sync (G_BUS_TYPE_SYSTEM, NULL, &error); + if (!system_bus) { + g_warning ("%s", error->message); + g_error_free (error); + + return FALSE; + } + } + + proxy = g_dbus_proxy_new_sync (system_bus, + G_DBUS_PROXY_FLAGS_NONE, + NULL, + "org.mate.CPUFreqSelector", + "/org/mate/cpufreq_selector/selector", + "org.mate.CPUFreqSelector", + NULL, + &error); + + if (!proxy) { + g_warning ("%s", error->message); + g_error_free (error); + + return FALSE; + } + + reply = g_dbus_proxy_call_sync (proxy, + "CanSet", + NULL, + G_DBUS_CALL_FLAGS_NONE, + -1, + NULL, + &error); + + if (!reply) { + g_warning ("Error calling org.mate.CPUFreqSelector.CanSet: %s", error->message); + g_error_free (error); + result = FALSE; + } else { + g_variant_get (reply, "(b)", &result); + g_variant_unref (reply); + } + + g_object_unref (proxy); + + return result; } gboolean cpufreq_utils_selector_is_available (void) { - static gboolean cache = FALSE; - static time_t last_refreshed = 0; - time_t now; + static gboolean cache = FALSE; + static time_t last_refreshed = 0; + time_t now; - time (&now); - if (ABS (now - last_refreshed) > CACHE_VALIDITY_SEC) { - cache = selector_is_available (); - last_refreshed = now; - } + time (&now); + if (ABS (now - last_refreshed) > CACHE_VALIDITY_SEC) { + cache = selector_is_available (); + last_refreshed = now; + } - return cache; + return cache; } #else /* !HAVE_POLKIT */ gboolean cpufreq_utils_selector_is_available (void) { - struct stat *info; - gchar *path = NULL; + struct stat *info; + gchar *path = NULL; - path = g_find_program_in_path ("cpufreq-selector"); - if (!path) - return FALSE; + path = g_find_program_in_path ("cpufreq-selector"); + if (!path) + return FALSE; - if (geteuid () == 0) { - g_free (path); - return TRUE; - } + if (geteuid () == 0) { + g_free (path); + return TRUE; + } - info = (struct stat *) g_malloc (sizeof (struct stat)); + info = (struct stat *) g_malloc (sizeof (struct stat)); - if ((lstat (path, info)) != -1) { - if ((info->st_mode & S_ISUID) && (info->st_uid == 0)) { - g_free (info); - g_free (path); + if ((lstat (path, info)) != -1) { + if ((info->st_mode & S_ISUID) && (info->st_uid == 0)) { + g_free (info); + g_free (path); - return TRUE; - } - } + return TRUE; + } + } - g_free (info); - g_free (path); + g_free (info); + g_free (path); - return FALSE; + return FALSE; } #endif /* HAVE_POLKIT_MATE */ gchar * cpufreq_utils_get_frequency_label (guint freq) { - gint divisor; - - if (freq > 999999) /* freq (kHz) */ - divisor = (1000 * 1000); - else - divisor = 1000; - - if (((freq % divisor) == 0) || divisor == 1000) /* integer */ - return g_strdup_printf ("%d", freq / divisor); - else /* float */ - return g_strdup_printf ("%3.2f", ((gfloat)freq / divisor)); + gint divisor; + + if (freq > 999999) /* freq (kHz) */ + divisor = (1000 * 1000); + else + divisor = 1000; + + if (((freq % divisor) == 0) || divisor == 1000) /* integer */ + return g_strdup_printf ("%d", freq / divisor); + else /* float */ + return g_strdup_printf ("%3.2f", ((gfloat)freq / divisor)); } gchar * cpufreq_utils_get_frequency_unit (guint freq) { - if (freq > 999999) /* freq (kHz) */ - return g_strdup ("GHz"); - else - return g_strdup ("MHz"); + if (freq > 999999) /* freq (kHz) */ + return g_strdup ("GHz"); + else + return g_strdup ("MHz"); } gboolean cpufreq_utils_governor_is_automatic (const gchar *governor) { - g_return_val_if_fail (governor != NULL, FALSE); - - if (g_ascii_strcasecmp (governor, "userspace") == 0) - return FALSE; + g_return_val_if_fail (governor != NULL, FALSE); + + if (g_ascii_strcasecmp (governor, "userspace") == 0) + return FALSE; - return TRUE; + return TRUE; } gboolean cpufreq_file_get_contents (const gchar *filename, - gchar **contents, - gsize *length, - GError **error) + gchar **contents, + gsize *length, + GError **error) { - gint fd; - GString *buffer = NULL; - gchar *display_filename; - - g_return_val_if_fail (filename != NULL, FALSE); - g_return_val_if_fail (contents != NULL, FALSE); - - display_filename = g_filename_display_name (filename); - - *contents = NULL; - if (length) - *length = 0; - - fd = open (filename, O_RDONLY); - if (fd < 0) { - gint save_errno = errno; - - g_set_error (error, - G_FILE_ERROR, - g_file_error_from_errno (save_errno), - "Failed to open file '%s': %s", - display_filename, - g_strerror (save_errno)); - g_free (display_filename); - - return FALSE; - } - - while (TRUE) { - ssize_t bytes_read; - gchar buf[1024]; - - bytes_read = read (fd, buf, sizeof (buf)); - if (bytes_read < 0) { /* Error */ - if (errno != EINTR) { - gint save_errno = errno; - - g_set_error (error, - G_FILE_ERROR, - g_file_error_from_errno (save_errno), - "Failed to read from file '%s': %s", - display_filename, - g_strerror (save_errno)); - - if (buffer) - g_string_free (buffer, TRUE); - - g_free (display_filename); - close (fd); - - return FALSE; - } - } else if (bytes_read == 0) { /* EOF */ - break; - } else { - if (!buffer) - buffer = g_string_sized_new (bytes_read); - buffer = g_string_append_len (buffer, buf, bytes_read); - } - } - - g_free (display_filename); - - if (buffer) { - *contents = g_string_free (buffer, FALSE); - - if (length) - *length = strlen (*contents); - } - - close (fd); - - return TRUE; + gint fd; + GString *buffer = NULL; + gchar *display_filename; + + g_return_val_if_fail (filename != NULL, FALSE); + g_return_val_if_fail (contents != NULL, FALSE); + + display_filename = g_filename_display_name (filename); + + *contents = NULL; + if (length) + *length = 0; + + fd = open (filename, O_RDONLY); + if (fd < 0) { + gint save_errno = errno; + + g_set_error (error, + G_FILE_ERROR, + g_file_error_from_errno (save_errno), + "Failed to open file '%s': %s", + display_filename, + g_strerror (save_errno)); + g_free (display_filename); + + return FALSE; + } + + while (TRUE) { + ssize_t bytes_read; + gchar buf[1024]; + + bytes_read = read (fd, buf, sizeof (buf)); + if (bytes_read < 0) { /* Error */ + if (errno != EINTR) { + gint save_errno = errno; + + g_set_error (error, + G_FILE_ERROR, + g_file_error_from_errno (save_errno), + "Failed to read from file '%s': %s", + display_filename, + g_strerror (save_errno)); + + if (buffer) + g_string_free (buffer, TRUE); + + g_free (display_filename); + close (fd); + + return FALSE; + } + } + else if (bytes_read == 0) { /* EOF */ + break; + } + else { + if (!buffer) + buffer = g_string_sized_new (bytes_read); + buffer = g_string_append_len (buffer, buf, bytes_read); + } + } + + g_free (display_filename); + + if (buffer) { + *contents = g_string_free (buffer, FALSE); + + if (length) + *length = strlen (*contents); + } + + close (fd); + + return TRUE; } |