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-rw-r--r--src/internal/ptycon_driver_impl.h12
1 files changed, 12 insertions, 0 deletions
diff --git a/src/internal/ptycon_driver_impl.h b/src/internal/ptycon_driver_impl.h
index a51c5a1..c46e146 100644
--- a/src/internal/ptycon_driver_impl.h
+++ b/src/internal/ptycon_driver_impl.h
@@ -31,4 +31,16 @@ struct ptyc_driver_ctx_impl {
struct ptyc_driver_ctx ctx;
};
+static inline struct ptyc_driver_ctx_impl * ptyc_get_driver_ictx(struct ptyc_driver_ctx * dctx)
+{
+ uintptr_t addr;
+
+ if (dctx) {
+ addr = (uintptr_t)dctx - offsetof(struct ptyc_driver_ctx_impl,ctx);
+ return (struct ptyc_driver_ctx_impl *)addr;
+ }
+
+ return 0;
+}
+
#endif