Foundation of VFS capabilities

5 files changed, 71 insertions, 7 deletions

diff --git a/common/tuxcmd-vfs.h b/common/tuxcmd-vfs.h
index 9689db2..2ced1b1 100644
--- a/common/tuxcmd-vfs.h
+++ b/common/tuxcmd-vfs.h
@@ -34,13 +34,13 @@ typedef int TVFSResult;
 
 /*  Compatible with gio/GAskPasswordFlags  */
 typedef enum {
-  VFS_ASK_PASSWORD_NEED_PASSWORD       = 1<<0,
-  VFS_ASK_PASSWORD_NEED_USERNAME       = 1<<1,
-  VFS_ASK_PASSWORD_NEED_DOMAIN         = 1<<2,
-  VFS_ASK_PASSWORD_SAVING_SUPPORTED    = 1<<3,
-  VFS_ASK_PASSWORD_ANONYMOUS_SUPPORTED = 1<<4,
-  VFS_ASK_PASSWORD_SAVE_INTERNAL       = 1<<14,
-  VFS_ASK_PASSWORD_ARCHIVE_MODE        = 1<<15
+  VFS_ASK_PASSWORD_NEED_PASSWORD       = 1 <<  0,
+  VFS_ASK_PASSWORD_NEED_USERNAME       = 1 <<  1,
+  VFS_ASK_PASSWORD_NEED_DOMAIN         = 1 <<  2,
+  VFS_ASK_PASSWORD_SAVING_SUPPORTED    = 1 <<  3,
+  VFS_ASK_PASSWORD_ANONYMOUS_SUPPORTED = 1 <<  4,
+  VFS_ASK_PASSWORD_SAVE_INTERNAL       = 1 << 14,
+  VFS_ASK_PASSWORD_ARCHIVE_MODE        = 1 << 15
 } TVFSAskPasswordFlags;
 
 /*  Compatible with gio/GPasswordSave  */
@@ -50,6 +50,14 @@ typedef enum {
   VFS_PASSWORD_SAVE_PERMANENTLY
 } TVFSPasswordSave;
 
+/*  Module capability flags  */
+typedef enum {
+  VFS_CAP_HANDLES_MULTIPLE_REQUESTS  = 1 << 0,      /*  Multiple (background) operations; usually unsuitable for archives  */
+  VFS_CAP_CAN_BROWSE_NETWORK         = 1 << 1,      /*  Can handle network:// URIs, scan network resources  */
+  VFS_CAP_CAN_CREATE_ARCHIVES        = 1 << 2,      /*  Creating archives from scratch  */
+  VFS_CAP_ARCHIVE_STREAMING          = 1 << 3       /*  Streaming archive type, can't handle random requests  */
+} TVFSModuleCapabilities;
+
 
 typedef void (* TVFSLogFunc) (const char *s);
 typedef void * TVFSFileDes;
diff --git a/gvfs/gvfs.c b/gvfs/gvfs.c
index 91a64c0..f62cfaa 100644
--- a/gvfs/gvfs.c
+++ b/gvfs/gvfs.c
@@ -120,6 +120,7 @@ g_error_to_TVFSResult (GError *error)
   }
 }
 
+
 static void
 ask_password_cb (GMountOperation  *op,
                  const char       *message,
@@ -195,6 +196,7 @@ ask_password_cb (GMountOperation  *op,
   g_mount_operation_reply (op, G_MOUNT_OPERATION_ABORTED);
 }
 
+
 static void
 ask_question_cb (GMountOperation *op,
                  const gchar     *message,
@@ -236,6 +238,7 @@ ask_question_cb (GMountOperation *op,
   g_mount_operation_reply (op, G_MOUNT_OPERATION_UNHANDLED);
 }
 
+
 static void
 mount_done_cb (GObject      *object,
                GAsyncResult *res,
@@ -263,6 +266,7 @@ mount_done_cb (GObject      *object,
   g_main_loop_quit (globs->mount_main_loop);
 }
 
+
 static TVFSResult
 vfs_handle_mount (struct TVFSGlobs *globs, GFile *file)
 {
@@ -288,6 +292,7 @@ vfs_handle_mount (struct TVFSGlobs *globs, GFile *file)
   return globs->mount_result;
 }
 
+
 struct TVFSGlobs *
 VFSNew (TVFSLogFunc log_func)
 {
@@ -315,6 +320,7 @@ VFSNew (TVFSLogFunc log_func)
   return globs;
 }
 
+
 void
 VFSSetCallbacks (struct TVFSGlobs        *globs,
                  TVFSAskQuestionCallback  ask_question_callback,
@@ -328,6 +334,7 @@ VFSSetCallbacks (struct TVFSGlobs        *globs,
   globs->callback_data = data;
 }
 
+
 void
 VFSFree (struct TVFSGlobs *globs)
 {
@@ -335,12 +342,14 @@ VFSFree (struct TVFSGlobs *globs)
   g_free (globs);
 }
 
+
 int
 VFSVersion ()
 {
   return cVFSVersion;
 }
 
+
 struct TVFSInfo *
 VFSGetInfo ()
 {
@@ -354,6 +363,14 @@ VFSGetInfo ()
   return module_info;
 }
 
+
+guint32
+VFSGetCapabilities ()
+{
+  return VFS_CAP_HANDLES_MULTIPLE_REQUESTS | VFS_CAP_CAN_BROWSE_NETWORK;
+}
+
+
 #if 0
 char *
 VFSGetArchiveExts ()
@@ -362,6 +379,7 @@ VFSGetArchiveExts ()
 }
 #endif
 
+
 char *
 VFSGetNetworkServices ()
 {
@@ -388,6 +406,7 @@ VFSGetNetworkServices ()
   return l;
 }
 
+
 TVFSResult
 VFSOpenURI (struct TVFSGlobs *globs, const char *sURI)
 {
@@ -448,6 +467,7 @@ VFSOpenURI (struct TVFSGlobs *globs, const char *sURI)
   return cVFS_OK;
 }
 
+
 TVFSResult
 VFSClose (struct TVFSGlobs *globs)
 {
@@ -460,6 +480,7 @@ VFSClose (struct TVFSGlobs *globs)
   return cVFS_OK;
 }
 
+
 static char *
 get_absolute_path (GFile *file)
 {
@@ -487,6 +508,7 @@ get_absolute_path (GFile *file)
     return NULL;
 }
 
+
 char *
 VFSGetPath (struct TVFSGlobs *globs)
 {
@@ -498,6 +520,7 @@ VFSGetPath (struct TVFSGlobs *globs)
   return s;
 }
 
+
 char *
 VFSGetPathURI (struct TVFSGlobs *globs)
 {
@@ -507,6 +530,7 @@ VFSGetPathURI (struct TVFSGlobs *globs)
     return NULL;
 }
 
+
 TVFSResult
 VFSGetFileSystemInfo (struct TVFSGlobs *globs, const char *APath, gint64 *FSSize, gint64 *FSFree, char **FSLabel)
 {
@@ -543,6 +567,7 @@ VFSGetFileSystemInfo (struct TVFSGlobs *globs, const char *APath, gint64 *FSSize
   return res;
 }
 
+
 /**************************************************************************************************************************************/
 /**************************************************************************************************************************************/
 
diff --git a/libarchive/libarchive.c b/libarchive/libarchive.c
index 4337bb1..6c6c59c 100644
--- a/libarchive/libarchive.c
+++ b/libarchive/libarchive.c
@@ -166,6 +166,13 @@ VFSGetInfo()
 }
 
 
+guint32
+VFSGetCapabilities ()
+{
+  return VFS_CAP_CAN_CREATE_ARCHIVES | VFS_CAP_ARCHIVE_STREAMING;
+}
+
+
 char *
 VFSGetArchiveExts ()
 {
diff --git a/unrar/unrar.c b/unrar/unrar.c
index ad02765..1d5a595 100644
--- a/unrar/unrar.c
+++ b/unrar/unrar.c
@@ -131,6 +131,7 @@ VFSNew (TVFSLogFunc log_func)
   return globs;
 }
 
+
 void
 VFSSetCallbacks (struct TVFSGlobs *globs,
                  TVFSAskQuestionCallback ask_question_callback,
@@ -144,6 +145,7 @@ VFSSetCallbacks (struct TVFSGlobs *globs,
   globs->callback_data = data;
 }
 
+
 void
 VFSFree (struct TVFSGlobs *globs)
 {
@@ -152,12 +154,14 @@ VFSFree (struct TVFSGlobs *globs)
   g_free (globs);
 }
 
+
 int
 VFSVersion ()
 {
   return cVFSVersion;
 }
 
+
 struct TVFSInfo *
 VFSGetInfo ()
 {
@@ -174,6 +178,14 @@ VFSGetInfo ()
   return module_info;
 }
 
+
+guint32
+VFSGetCapabilities ()
+{
+  return VFS_CAP_ARCHIVE_STREAMING;
+}
+
+
 char *
 VFSGetArchiveExts ()
 {
diff --git a/zip/zip.cpp b/zip/zip.cpp
index 035b4b2..8e2e1e7 100644
--- a/zip/zip.cpp
+++ b/zip/zip.cpp
@@ -274,6 +274,7 @@ VFSNew (TVFSLogFunc log_func)
   return globs;
 }
 
+
 void
 VFSSetCallbacks (struct TVFSGlobs *globs,
                  TVFSAskQuestionCallback ask_question_callback,
@@ -287,6 +288,7 @@ VFSSetCallbacks (struct TVFSGlobs *globs,
   globs->callback_data = data;
 }
 
+
 void
 VFSFree (struct TVFSGlobs *globs)
 {
@@ -295,12 +297,14 @@ VFSFree (struct TVFSGlobs *globs)
   g_free (globs);
 }
 
+
 int 
 VFSVersion ()
 {
   return cVFSVersion;
 }
 
+
 struct TVFSInfo *
 VFSGetInfo ()
 {
@@ -316,6 +320,14 @@ VFSGetInfo ()
   return module_info;
 }
 
+
+guint32
+VFSGetCapabilities ()
+{
+  return VFS_CAP_CAN_CREATE_ARCHIVES;
+}
+
+
 char *
 VFSGetArchiveExts ()
 {