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authorWilliam Wilgus <me.theuser@yahoo.com>2017-02-03 17:13:58 -0500
committerWilliam Wilgus <me.theuser@yahoo.com>2020-08-20 23:08:57 +0000
commit5ef28cccf92f5eada6d502fa4b0e16a13e94be5b (patch)
tree05f9d2f8bdf3c0cc54c5893159a7dcf07c7e3e55 /firmware/export
parent31fc46ded69be7438cca2ba2c2b93c1f200165a6 (diff)
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Allow mounting of any directory as the root directory.
Provide definitions for the macros: * RB_ROOT_VOL_HIDDEN(v) to exclude certain items from the root. * RB_ROOT_CONTENTS to return a string with the name of the directory to mount in the root. Defaults are in export/rbpaths.h It's a bit much for those that don't need the full functionality. Some conditional define can cut it back a lot to cut out things only needed if alternate root mounts are required. I'm just not bothering yet. The basic concept would be applied to all targets to keep file code from forking too much. Change-Id: I90b5c0a1c949283d3102c16734b0b6ac73901a30
Diffstat (limited to 'firmware/export')
-rw-r--r--firmware/export/mv.h4
-rw-r--r--firmware/export/pathfuncs.h6
-rw-r--r--firmware/export/rbpaths.h3
3 files changed, 13 insertions, 0 deletions
diff --git a/firmware/export/mv.h b/firmware/export/mv.h
index ec7b2efdbd..5aa0ff8b4d 100644
--- a/firmware/export/mv.h
+++ b/firmware/export/mv.h
@@ -84,6 +84,10 @@
#define VOL_MAX_LEN (1 + VOL_DEC_MAX_LEN + 2 + 1)
#define VOL_NUM_MAX 100
+#ifndef ROOT_VOLUME
+#define ROOT_VOLUME INT_MAX
+#endif
+
#else /* empty definitions if no multi-volume */
#define IF_MV(x...)
#define IF_MV_NONVOID(x...) void
diff --git a/firmware/export/pathfuncs.h b/firmware/export/pathfuncs.h
index 92539c54c1..8858d85d24 100644
--- a/firmware/export/pathfuncs.h
+++ b/firmware/export/pathfuncs.h
@@ -30,10 +30,15 @@
/* useful char constants that could be reconfigured if desired */
#define PATH_SEPCH '/'
#define PATH_SEPSTR "/"
+#define PATH_ROOTCHR '/'
#define PATH_ROOTSTR "/"
#define PATH_BADSEPCH '\\'
#define PATH_DRVSEPCH ':'
+#ifndef ROOT_VOLUME
+#define ROOT_VOLUME INT_MAX
+#endif
+
/* a nicer way to check for "." and ".." than two strcmp() calls */
static inline bool is_dotdir_name(const char *name)
{
@@ -75,6 +80,7 @@ static inline bool name_is_dot_dot(const char *name)
#ifdef HAVE_MULTIVOLUME
int path_strip_volume(const char *name, const char **nameptr, bool greedy);
int get_volume_name(int volume, char *name);
+int make_volume_root(int volume, char *dst);
#endif
int path_strip_drive(const char *name, const char **nameptr, bool greedy);
diff --git a/firmware/export/rbpaths.h b/firmware/export/rbpaths.h
index de591f0ec1..458a070f92 100644
--- a/firmware/export/rbpaths.h
+++ b/firmware/export/rbpaths.h
@@ -64,6 +64,9 @@
#define PLUGIN_DIR ROCKBOX_DIR "/rocks"
#define CODECS_DIR ROCKBOX_DIR "/codecs"
+#define RB_ROOT_VOL_HIDDEN(v) (IF_MV_VOL(v) == 0)
+#define RB_ROOT_CONTENTS_DIR "/" IF_MV("<0>")
+
#else /* APPLICATION */
#define HOME_DIR "<HOME>" /* replaced at runtime */