Add devoptab support to replace the libioushax devoptab

source/devoptab/devoptab_fsa_statvfs.cpp

@@ -0,0 +1,51 @@
+#include "devoptab_fsa.h"
+#include "logger.h"
+#include <mutex>
+
+int __fsa_statvfs(struct _reent *r,
+                  const char *path,
+                  struct statvfs *buf) {
+    FSError status;
+    uint64_t freeSpace;
+
+    memset(buf, 0, sizeof(struct statvfs));
+
+    char *fixedPath = __fsa_fixpath(r, path);
+    if (!fixedPath) {
+        r->_errno = ENOMEM;
+        return -1;
+    }
+
+    auto *deviceData = (FSADeviceData *) r->deviceData;
+
+    status = FSAGetFreeSpaceSize(deviceData->clientHandle, fixedPath, &freeSpace);
+    if (status < 0) {
+        DEBUG_FUNCTION_LINE_ERR("FSAGetFreeSpaceSize(0x%08X, %s, 0x%08X) failed: %s",
+                                deviceData->clientHandle, fixedPath, &freeSpace, FSAGetStatusStr(status));
+        free(fixedPath);
+        r->_errno = __fsa_translate_error(status);
+        return -1;
+    }
+    free(fixedPath);
+
+    // File system block size
+    buf->f_bsize = deviceData->deviceSectorSize;
+    // Fundamental file system block size
+    buf->f_frsize = deviceData->deviceSectorSize;
+    // Total number of blocks on file system in units of f_frsize
+    buf->f_blocks = deviceData->deviceSizeInSectors;
+    // Free blocks available for all and for non-privileged processes
+    buf->f_bfree = buf->f_bavail = (uint32_t) (freeSpace / buf->f_frsize);
+    // Number of inodes at this point in time
+    buf->f_files = 0xFFFFFFFF;
+    // Free inodes available for all and for non-privileged processes
+    buf->f_ffree = 0xFFFFFFFF;
+    // File system id
+    buf->f_fsid = (unsigned long) deviceData->clientHandle;
+    // Bit mask of f_flag values.
+    buf->f_flag = 0;
+    // Maximum length of filenames
+    buf->f_namemax = 255;
+
+    return 0;
+}