Handle statvfs in C.

This is necessary for musl support because musl's version of struct
statvfs contains bitfields, which Zig does not know how to import.

1 files changed, 19 insertions, 0 deletions

diff --git a/src/statvfs_helper.c b/src/statvfs_helper.c
new file mode 100644
index 0000000..8f6a4fe
--- /dev/null
+++ b/src/statvfs_helper.c
@@ -0,0 +1,19 @@
+#include <stdint.h>
+
+#ifdef _WIN32
+uint64_t statvfs_get_free_space_impl(const char* path) {
+    // Windows not implemented
+    (void)path;
+    return 0;
+}
+#else
+#include <sys/statvfs.h>
+
+uint64_t statvfs_get_free_space_impl(const char* path) {
+    struct statvfs stat;
+    if (statvfs(path, &stat) != 0) {
+        return 0;
+    }
+    return (uint64_t)stat.f_frsize * (uint64_t)stat.f_bavail;
+}
+#endif
\ No newline at end of file