libusbhsfs-related changes.

* Free space is now retrieved via statvfs() for all filesystems, including the SD card.
* Updated Makefile to reflect latest libusbhsfs changes (dev branch).

Makefile

@@ -69,7 +69,7 @@ CXXFLAGS	:= $(CFLAGS) -fno-rtti -fno-exceptions
 ASFLAGS	:=	-g $(ARCH)
 LDFLAGS	=	-specs=$(DEVKITPRO)/libnx/switch.specs -g $(ARCH) -Wl,-Map,$(notdir $*.map)
 
-LIBS	:= -lcurl -lmbedtls -lmbedx509 -lmbedcrypto -lxml2 -lz -lusbhsfs -lnx -ljson-c -lm `freetype-config --libs` -lturbojpeg
+LIBS	:= -lcurl -lmbedtls -lmbedx509 -lmbedcrypto -lxml2 -lz -lusbhsfs -lntfs-3g -lnx -ljson-c -lm `freetype-config --libs` -lturbojpeg
 
 #---------------------------------------------------------------------------------
 # list of directories containing libraries, this must be the top level containing
@@ -160,7 +160,7 @@ endif
 all: $(BUILD)
 
 usbhsfs:
-	@$(MAKE) --no-print-directory -C libusbhsfs release
+	@$(MAKE) --no-print-directory -C libusbhsfs BUILD_TYPE=GPL release
 
 $(BUILD): usbhsfs
 	@[ -d $@ ] || mkdir -p $@

build.sh

@@ -23,7 +23,7 @@ for f in ./code_templates/*.c; do
     rm -f ./source/main.c
     cp $f ./source/main.c
     
-    make BUILD_TYPE="$filename"
+    make BUILD_TYPE="$filename" -j12
     rm -f ./build/main.o ./build/main.d
     
     mkdir ./code_templates/tmp/$filename

source/utils.c

@@ -19,6 +19,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
+#include <sys/statvfs.h>
 #include <usbhsfs.h>
 
 #include "utils.h"
@@ -581,12 +582,29 @@ void utilsGenerateFormattedSizeString(u64 size, char *dst, size_t dst_size)
     }
 }
 
-bool utilsGetFreeSdCardFileSystemSpace(u64 *out)
+bool utilsGetFreeSpaceFromFileSystemByPath(const char *path, u64 *out)
 {
-    if (!g_sdCardFileSystem) return false;
-    Result rc = fsFsGetFreeSpace(g_sdCardFileSystem, "/", (s64*)out);
-    if (R_FAILED(rc)) LOGFILE("fsFsGetFreeSpace failed! (0x%08X).", rc);
-    return R_SUCCEEDED(rc);
+    char *name_end = NULL, stat_path[32] = {0};
+    struct statvfs info = {0};
+    int ret = -1;
+    
+    if (!path || !*path || !(name_end = strchr(path, ':')) || *(name_end + 1) != '/' || !out)
+    {
+        LOGFILE("Invalid parameters!");
+        return false;
+    }
+    
+    name_end += 2;
+    sprintf(stat_path, "%.*s", (int)(name_end - path), path);
+    
+    if ((ret = statvfs(stat_path, &info)) != 0)
+    {
+        LOGFILE("statvfs failed! (%d) (errno: %d).", ret, errno);
+        return false;
+    }
+    
+    *out = ((u64)info.f_bfree * (u64)info.f_frsize);
+    return true;
 }
 
 bool utilsCommitSdCardFileSystemChanges(void)

source/utils.h

@@ -65,7 +65,7 @@
 
 
 
-
+/// Used to determine which CFW is the application running under.
 typedef enum {
     UtilsCustomFirmwareType_Unknown    = 0,
     UtilsCustomFirmwareType_Atmosphere = 1,
@@ -73,57 +73,90 @@ typedef enum {
     UtilsCustomFirmwareType_ReiNX      = 3
 } UtilsCustomFirmwareType;
 
+/// Resource (de)initialization.
+/// Called at program startup.
 bool utilsInitializeResources(void);
 void utilsCloseResources(void);
 
+/// Thread management functions.
 bool utilsCreateThread(Thread *out_thread, ThreadFunc func, void *arg, int cpu_id);
 void utilsJoinThread(Thread *thread);
 
+/// Returns true if the application is running under a development unit.
 bool utilsIsDevelopmentUnit(void);
 
-/// hidScanInput() must be called before any of these functions.
+/// Functions to retrieve down/held keys from all input controllers.
+/// hidScanInput() must be called before any of these.
 u64 utilsHidKeysAllDown(void);
 u64 utilsHidKeysAllHeld(void);
 
+/// Waits until any key matching the provided input flag is pressed.
+/// If 'flag' is set to zero (KEY_ANY), any key press will count.
 void utilsWaitForButtonPress(u64 flag);
 
+/// Formats a string and appends it to the provided buffer.
+/// If the buffer isn't big enough to hold both its current contents and the new formatted string, it will be resized.
 bool utilsAppendFormattedStringToBuffer(char **dst, size_t *dst_size, const char *fmt, ...);
 
+/// Logfile management functions.
 void utilsWriteMessageToLogFile(const char *func_name, const char *fmt, ...);
 void utilsWriteMessageToLogBuffer(char **dst, size_t *dst_size, const char *func_name, const char *fmt, ...);
 void utilsWriteLogBufferToLogFile(const char *src);
 void utilsLogFileMutexControl(bool lock);
 
+/// Replaces illegal FAT characters in the provided string with underscores.
+/// If 'ascii_only' is set to true, all characters outside the (0x20,0x7E] range will also be replaced with underscores.
 void utilsReplaceIllegalCharacters(char *str, bool ascii_only);
 
+/// Trims whitespace characters from the provided string.
 void utilsTrimString(char *str);
 
+/// Generates a lowercase hex string representation of the binary data stored in 'src' and stores it in 'dst'.
 void utilsGenerateHexStringFromData(char *dst, size_t dst_size, const void *src, size_t src_size);
 
+/// Formats the provided 'size' value to a human readable size string and stores it in 'dst'.
 void utilsGenerateFormattedSizeString(u64 size, char *dst, size_t dst_size);
 
-bool utilsGetFreeSdCardFileSystemSpace(u64 *out);
+/// Saves the free file space from the filesystem pointed to by the input path (e.g. "sdmc:/") to 'out'.
+/// Returns false if there's an error.
+bool utilsGetFreeSpaceFromFileSystemByPath(const char *path, u64 *out);
+
+/// Commits SD card filesystem changes.
+/// Must be used after closing a file handle from the SD card.
 bool utilsCommitSdCardFileSystemChanges(void);
 
+/// Returns true if a file exists.
 bool utilsCheckIfFileExists(const char *path);
 
+/// Deletes a ConcatenationFile located at the input path.
 void utilsRemoveConcatenationFile(const char *path);
+
+/// Creates a ConcatenationFile at the input path.
 bool utilsCreateConcatenationFile(const char *path);
 
+/// Creates a full directory tree using the provided path.
+/// If 'create_last_element' is true, the last element from the provided path will be created as well.
 void utilsCreateDirectoryTree(const char *path, bool create_last_element);
 
+/// Returns a pointer to a dynamically allocated string that holds the full path formed by the provided arguments.
 char *utilsGeneratePath(const char *prefix, const char *filename, const char *extension);
 
+/// Returns true if the application is running under Applet Mode.
 bool utilsAppletModeCheck(void);
 
+/// (Un)blocks HOME button presses.
 void utilsChangeHomeButtonBlockStatus(bool block);
 
-u8 utilsGetCustomFirmwareType(void);    ///< UtilsCustomFirmwareType.
+/// Returns a UtilsCustomFirmwareType value.
+u8 utilsGetCustomFirmwareType(void);
 
+/// Returns a pointer to the FsStorage object for the eMMC BIS System partition.
 FsStorage *utilsGetEmmcBisSystemPartitionStorage(void);
 
+/// Enables/disables CPU/MEM overclocking.
 void utilsOverclockSystem(bool overclock);
 
+/// Simple wrapper to sleep the current thread for a specific number of full seconds.
 NX_INLINE void utilsSleep(u64 seconds)
 {
     if (seconds) svcSleepThread(seconds * (u64)1000000000);