Added a new backend: mount

This is quite rought and brutal, it read the fstab file
to see the availabel mount points and the /proc/mounts
files to see if they are mounted or not.

atm only looks for fns and cifs filesystem, as all the
others should be yet managed by udisks. Works quite well
with my nfs shares.

TBD: actually mount/unmount using the mount command

configure.ac

@@ -69,6 +69,17 @@ if test "x$want_eldbus" = "xno";then
    have_eldbus=no
 fi
 
+# check for mount (default enabled)
+#TODO here check if /etc/fstab and /proc/mounts exists
+have_mount=yes
+want_mount=yes
+AC_ARG_ENABLE([mount],
+   AS_HELP_STRING([--enable-mount],[enable mount fstab/mtab support @<:@default=enabled@:>@]), 
+   [want_mount=$enableval])
+if test "x$want_mount" = "xno";then
+   have_mount=no
+fi
+
 # check for eeze (default disabled)
 PKG_CHECK_MODULES([EEZE], [eeze >= 1.1.99],
                   [have_eeze="yes"], [have_eeze="no"])
@@ -87,6 +98,9 @@ test "x$have_eldbus" = "xyes" && AC_DEFINE_UNQUOTED([HAVE_ELDBUS], [1], [enable
 AM_CONDITIONAL([HAVE_EEZE], [test "x$have_eeze" = "xyes"])
 test "x$have_eeze" = "xyes" && AC_DEFINE_UNQUOTED([HAVE_EEZE], [1], [enable eeze support])
 
+AM_CONDITIONAL([HAVE_MOUNT], [test "x$have_mount" = "xyes"])
+test "x$have_mount" = "xyes" && AC_DEFINE_UNQUOTED([HAVE_MOUNT], [1], [enable mount support])
+
 
 # homedir install
 datadir=$(pkg-config --variable=modules enlightenment)/${PACKAGE}
@@ -123,6 +137,7 @@ echo
 cat << DEVICE_EOF
 Device Backends:
  * build udisks (eldbus)....: $have_eldbus (default)
+ * build mount (fstab/mtab).: $have_mount (default)
  * build eeze...............: $have_eeze (experimental)
 DEVICE_EOF
 echo

src/Makefile.am

@@ -14,6 +14,8 @@ module_la_SOURCES = e_mod_main.h \
                     e_mod_places.c \
                     e_mod_udisks_eldbus.h \
                     e_mod_udisks_eldbus.c \
+                    e_mod_mount.h \
+                    e_mod_mount.c \
                     e_mod_eeze.h \
                     e_mod_eeze.c
 

src/e_mod_mount.c

@@ -0,0 +1,190 @@
+#ifdef HAVE_CONFIG_H
+# include "config.h"
+#endif
+
+#ifdef HAVE_MOUNT
+
+#include <e.h>
+#include "e_mod_places.h"
+
+
+
+#define FSTAB_FILE "/etc/fstab"
+#define MTAB_FILE "/proc/mounts"
+
+static Ecore_Timer *mtab_timer = NULL;
+static Eina_List *know_mounts = NULL;
+
+
+void
+_places_mount_volume_add(const char *mpoint, const char *fstype)
+{
+   Volume *vol;
+
+   // printf("PLACES: found mount: %s (%s)\n", mpoint, fstype);
+   vol = places_volume_add(mpoint, EINA_TRUE);
+   vol->valid = EINA_TRUE;
+   vol->mounted = EINA_FALSE;
+   eina_stringshare_replace(&vol->label,  ecore_file_file_get(mpoint));
+   eina_stringshare_replace(&vol->mount_point, mpoint);
+   eina_stringshare_replace(&vol->fstype, fstype);
+
+   know_mounts = eina_list_append(know_mounts, vol);
+}
+
+char *
+_places_mount_file_read(const char *path)
+{
+   char buf[10000]; //   :/
+   FILE * f;
+   size_t len;
+   
+   f = fopen(path, "r");
+   if (!f)
+      return NULL;
+
+   len = fread(buf, sizeof(char), sizeof(buf), f);
+   fclose(f);
+
+   if (len < 1)
+      return NULL;
+
+   // printf("PLACES: readed %ld\n", len);
+   buf[++len] = '\0';
+   return strdup(buf);
+}
+
+void
+_places_mount_mtab_parse(void)
+{
+   char *contents;
+   char **lines;
+   unsigned int i, num_splits;
+   char mpoint[256];
+   Eina_List *to_search, *l, *l2;
+   Volume *vol;
+
+   contents = _places_mount_file_read("/proc/mounts");
+   if (!contents)
+      return;
+
+   lines = eina_str_split(contents, "\n", 0);
+   if (!lines)
+      return;
+
+   to_search = eina_list_clone(know_mounts);
+
+   for (i = 0; lines[i]; i++)
+   {
+      num_splits = sscanf(lines[i], "%*s %s %*s %*s %*d %*d", mpoint);
+      if (num_splits != 1)
+         continue;
+
+      EINA_LIST_FOREACH_SAFE(to_search, l, l2, vol)
+      {
+         if (strcmp(vol->mount_point, mpoint))
+           continue;
+
+         // printf("PLACES: Mounted: %s\n", mpoint);
+         to_search = eina_list_remove(to_search, vol);
+         if (vol->mounted == EINA_FALSE)
+         {
+            vol->mounted = EINA_TRUE;
+            places_volume_update(vol);
+         }
+         break;
+      }
+      continue;
+   }
+
+   EINA_LIST_FREE(to_search, vol)
+   {
+      // printf("PLACES: NOT Mounted: %s\n", vol->mount_point);
+      if (vol->mounted == EINA_TRUE)
+      {
+         vol->mounted = EINA_FALSE;
+         places_volume_update(vol);
+      }
+   }
+
+   free(lines[0]);
+   free(lines);
+   free(contents);
+}
+
+void
+_places_mount_fstab_parse(void)
+{
+   char *contents, *line;
+   char **lines;
+   unsigned int i, num_splits;
+   char mpoint[256];
+   char fstype[64];
+
+   contents = _places_mount_file_read(FSTAB_FILE);
+   if (!contents)
+      return;
+
+   lines = eina_str_split(contents, "\n", 0);
+   if (!lines)
+      return;
+
+   for (i = 0; lines[i]; i++)
+   {
+      line = lines[i];
+
+      if (!line[0] || line[0] == '\n' || line[0] == '#')
+         continue;
+
+      num_splits = sscanf(line, "%*s %s %s %*s %*d %*d", mpoint, fstype);
+      if (num_splits != 2)
+         continue;
+
+      if (!strcmp(fstype, "nfs") ||
+          !strcmp(fstype, "cifs"))
+      {
+         _places_mount_volume_add(mpoint, fstype);
+      }
+   }
+
+   free(lines[0]);
+   free(lines);
+   free(contents);
+}
+
+static Eina_Bool
+_places_mount_mtab_timer_cb(void *data)
+{
+   _places_mount_mtab_parse();
+   return ECORE_CALLBACK_RENEW;
+}
+
+Eina_Bool
+places_mount_init(void)
+{
+   printf("PLACES: mount: init()\n");
+
+   if (!ecore_file_exists(FSTAB_FILE) ||
+       !ecore_file_exists(MTAB_FILE))
+   {
+      printf("PLACES: mount: Cannot find required files\n");
+      return EINA_FALSE;
+   }
+
+   _places_mount_fstab_parse();
+   _places_mount_mtab_parse();
+
+   mtab_timer = ecore_timer_add(4.0, _places_mount_mtab_timer_cb, NULL);
+   return EINA_TRUE;
+}
+
+void
+places_mount_shutdown(void)
+{
+   printf("PLACES: mtab: shutdown()\n");
+   if (mtab_timer) ecore_timer_del(mtab_timer);
+   if (know_mounts) eina_list_free(know_mounts);
+}
+
+
+#endif

src/e_mod_mount.h

@@ -0,0 +1,8 @@
+#ifndef E_MOD_PLACES_MOUNT_H
+#define E_MOD_PLACES_MOUNT_H
+
+void places_mount_init(void);
+void places_mount_shutdown(void);
+
+#endif
+

src/e_mod_places.c

@@ -11,6 +11,10 @@
 #ifdef HAVE_ELDBUS
 # include "e_mod_udisks_eldbus.h"
 #endif
+#ifdef HAVE_MOUNT
+# include "e_mod_mount.h"
+#endif
+
 
 /* Local Function Prototypes */
 static Eina_Bool _places_poller(void *data);
@@ -44,6 +48,9 @@ places_init(void)
 #ifdef HAVE_ELDBUS
    places_udisks_eldbus_init();
 #endif
+#ifdef HAVE_MOUNT
+   places_mount_init();
+#endif
 
    snprintf(theme_file, PATH_MAX, "%s/e-module-places.edj",
             places_conf->module->dir);
@@ -64,6 +71,9 @@ places_shutdown(void)
 #ifdef HAVE_ELDBUS
    places_udisks_eldbus_shutdown();
 #endif
+#ifdef HAVE_MOUNT
+   places_mount_shutdown();
+#endif
 }
 
 Evas_Object *