[Nautilus-list] [PATCH] SCSI support in hardware view
- From: Ed McKenzie <eem12 cornell edu>
- To: nautilus-list lists eazel com
- Subject: [Nautilus-list] [PATCH] SCSI support in hardware view
- Date: 03 Jun 2001 06:33:12 -0500
Sorry if this is a resend.
This patch adds SCSI support to the hardware view component. There are
some FIXME's -- IMO a few things could be done better, but it does work
everywhere I've tried it :) Testing and comments appreciated...
--
Ed McKenzie
<eem12 cornell edu>
Index: nautilus/components/hardware/nautilus-hardware-view.c
===================================================================
RCS file: /cvs/gnome/nautilus/components/hardware/nautilus-hardware-view.c,v
retrieving revision 1.32
diff -u -p -r1.32 nautilus-hardware-view.c
--- nautilus/components/hardware/nautilus-hardware-view.c 2001/05/04 03:12:42 1.32
+++ nautilus/components/hardware/nautilus-hardware-view.c 2001/06/03 11:31:31
@@ -19,6 +19,7 @@
*
* Author: Andy Hertzfeld <andy eazel com>
* Shane Butler <shane_b bigfoot com>
+ * Ed McKenzie <eem12 cornell edu>
*
*/
@@ -59,6 +60,20 @@ enum {
TARGET_COLOR,
};
+typedef enum { Scsi_Disk, Scsi_CDROM, Scsi_Tape, Scsi_Other } ScsiDeviceType;
+
+typedef struct _NautilusScsiInfo {
+ gchar dev_name; /* device name: a, b, c, ... */
+ guint8 host, channel, id, lun; /* physical location */
+ gchar vendor[9], model[17], rev[5];
+ /* vendor identification */
+ guint32 size_blocks; /* device size, blocks (Kb) */
+ struct _NautilusScsiInfo*
+ next; /* list */
+ ScsiDeviceType
+ dev_type; /* SCSI device class */
+} NautilusScsiInfo;
+
static GtkTargetEntry hardware_dnd_target_table[] = {
{ "application/x-color", 0, TARGET_COLOR },
};
@@ -77,6 +92,11 @@ static void hardware_view_load_location_
const char *location,
NautilusHardwareView *hardware_view);
+guint32 next_scsi_device_size (FILE* fp);
+NautilusScsiInfo*
+ get_scsi_info (void);
+void done_scsi_info (NautilusScsiInfo* list);
+
EEL_DEFINE_CLASS_BOILERPLATE (NautilusHardwareView, nautilus_hardware_view, GTK_TYPE_EVENT_BOX)
#define HARDWARE_DEFAULT_BACKGROUND_COLOR "rgb:DDDD/DDDD/BBBB"
@@ -341,6 +361,131 @@ get_IDE_description (const char *device)
}
+/* Get the device size of the next SCSI disk in the partition table. */
+guint32
+next_scsi_device_size(FILE* fp) {
+ char buf[256]; /* sar-enabled kernels have long lines in
+ * /proc/partitions!
+ */
+
+ for (;;) {
+ if (fgets(buf, sizeof buf, fp) != NULL) {
+ /* if SCSI device, and it's a disk (not a partition...) */
+ if (buf[22] == 's' && buf[25] == ' ') {
+ return strtol(buf+11, NULL, 10);
+ }
+ }
+ if (feof(fp) != 0) {
+ return 0;
+ }
+ }
+}
+
+/* Scan all SCSI devices visible in /proc/scsi/scsi, and return a list of device info.
+ */
+NautilusScsiInfo*
+get_scsi_info (void) {
+ FILE *fp_scsi, *fp_part;
+ NautilusScsiInfo
+ *device, *list_head;
+ gchar buf[64];
+
+ list_head = NULL;
+
+ fp_scsi = fopen ("/proc/scsi/scsi", "r");
+ fp_part = fopen ("/proc/partitions", "r");
+
+ /* give up if we can't get all the relevant info */
+ if (fp_scsi != NULL && fp_part != NULL) {
+
+ device = list_head = g_new(NautilusScsiInfo, 1);
+
+ /* get info for all devices */
+ while ( feof (fp_scsi) == 0 ) {
+
+ if (device == NULL) {
+ device = g_new(NautilusScsiInfo, 1);
+ device->next = list_head;
+ list_head = device;
+ }
+
+ if ( fgets(buf, sizeof buf, fp_scsi) != NULL ) {
+ if (strncmp("Host:", buf, 5) == 0) {
+ device->host = strtol(buf+10, NULL, 10);
+ device->channel = strtol(buf+21, NULL, 10);
+ device->id = strtol(buf+28, NULL, 10);
+ device->lun = strtol(buf+36, NULL, 10);
+ } else if (strncmp("Vendor:", buf+2, 7) == 0) {
+ strncpy(device->vendor, buf+10, sizeof device->vendor-1);
+ strncpy(device->model, buf+26, sizeof device->model-1);
+ strncpy(device->rev, buf+48, sizeof device->rev-1);
+ } else if (strncmp("Type:", buf+2, 5) == 0) {
+ if (strncmp("Direct-Access", buf+10, 13) == 0) {
+ device->dev_type = Scsi_Disk;
+ } else if (strncmp("CD-ROM", buf+10, 6) == 0) {
+ device->dev_type = Scsi_CDROM;
+ } else if (strncmp("Sequential-Access", buf+10, 17) == 0) {
+ device->dev_type = Scsi_Tape;
+ } else {
+ device->dev_type = Scsi_Other;
+ }
+
+ /* We're done with the /proc/scsi/scsi part of the
+ * scanning, so get the device size from
+ * /proc/partitions
+ */
+ device->size_blocks = next_scsi_device_size(fp_part);
+
+ /* Next item */
+ device = NULL;
+ }
+ } else {
+ list_head = device->next;
+ g_free(device);
+ }
+ }
+ }
+
+ if (fp_scsi != NULL) {
+ fclose (fp_scsi);
+ }
+ if (fp_part != NULL) {
+ fclose (fp_part);
+ }
+
+ return list_head;
+}
+
+static char*
+get_SCSI_description (NautilusScsiInfo* scsi_dev) {
+ GString* str_description;
+ char* str_size;
+ static char* description;
+ float size_mb;
+
+ str_description = g_string_new ("");
+ g_string_append (str_description, scsi_dev->vendor);
+ g_string_append (str_description, " ");
+ g_string_append (str_description, scsi_dev->model);
+ if (scsi_dev->dev_type == Scsi_Disk) {
+ g_string_append (str_description, "\n");
+
+ /* FIXME: share size computation with IDE code */
+ size_mb = scsi_dev->size_blocks / 1000.0;
+ if (scsi_dev->size_blocks > 1000) {
+ str_size = g_strdup_printf ("%.1f GB", (size_mb/1000.0));
+ } else {
+ str_size = g_strdup_printf ("%.1f MB", size_mb);
+ }
+ g_string_append (str_description, str_size);
+ }
+
+ description = str_description->str;
+ g_string_free (str_description, FALSE);
+
+ return description;
+}
+
/* shared utility to allocate a title for a form */
static void
@@ -397,6 +542,7 @@ setup_overview_form (NautilusHardwareVie
DIR *directory;
struct dirent* entry;
char *device, *proc_file, *ide_media;
+ NautilusScsiInfo *scsi_info, *scsi_dev;
/* allocate a vbox as the container */
view->details->form = gtk_vbox_new(FALSE,0);
@@ -496,6 +642,57 @@ setup_overview_form (NautilusHardwareVie
}
}
closedir(directory);
+ }
+
+ /* Display SCSI disks and CD devices.
+ * by Ed McKenzie <eem12 cornell edu>
+ *
+ * SCSI device info is only supported on Linux 2.2 and 2.4 with /proc mounted.
+ * Additionally, we make the assumption that the device ordering for disks in
+ * /proc/scsi/scsi is the same as the partition ordering for /dev/sd? in
+ * /proc/partitions. Both files must be present for get_scsi_info to return
+ * useful information.
+ */
+ scsi_info = get_scsi_info();
+ if (scsi_info) {
+ scsi_dev = scsi_info;
+ while (scsi_dev != NULL) {
+ temp_box = gtk_vbox_new(FALSE, 4);
+ add_element_to_table (table, temp_box, element_index++);
+ gtk_widget_show(temp_box);
+
+ switch (scsi_dev->dev_type) {
+ case Scsi_Disk:
+ file_name = nautilus_pixmap_file("i-harddisk.png");
+ break;
+ case Scsi_CDROM:
+ file_name = nautilus_pixmap_file("CD_drive.png");
+ break;
+ /* FIXME: i-harddisk is a filler icon */
+ case Scsi_Tape:
+ case Scsi_Other:
+ file_name = nautilus_pixmap_file("i-harddisk.png");
+ break;
+ }
+
+ pixmap_widget = eel_image_new (file_name);
+ gtk_box_pack_start (GTK_BOX(temp_box), pixmap_widget, 0, 0, 0);
+ gtk_widget_show(pixmap_widget);
+ g_free(file_name);
+
+ temp_text = get_SCSI_description(scsi_dev);
+ temp_widget = eel_label_new (temp_text);
+ eel_label_make_larger (EEL_LABEL (temp_widget), 2);
+ eel_label_set_justify (EEL_LABEL (temp_widget), GTK_JUSTIFY_CENTER);
+
+ g_free(temp_text);
+ gtk_box_pack_start(GTK_BOX(temp_box), temp_widget, 0, 0, 0);
+ gtk_widget_show(temp_widget);
+
+ scsi_info = scsi_dev;
+ scsi_dev = scsi_dev->next;
+ g_free(scsi_info);
+ }
}
}
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