refactor(io): make rstream use a linear buffer

If you like it you shouldn't put a ring on it.

This is what _every_ consumer of RStream used anyway, either by calling
rbuffer_reset, or rbuffer_consumed_compact (same as rbuffer_reset
without needing a scratch buffer), or by consuming everything in
each stream_read_cb call directly.

1 files changed, 0 insertions, 45 deletions

diff --git a/src/nvim/rbuffer_defs.h b/src/nvim/rbuffer_defs.h
deleted file mode 100644
index 51dc349846..0000000000
--- a/src/nvim/rbuffer_defs.h
+++ /dev/null
@@ -1,45 +0,0 @@
-#pragma once
-
-#include <stddef.h>
-
-#include "nvim/func_attr.h"
-
-typedef struct rbuffer RBuffer;
-/// Type of function invoked during certain events:
-///   - When the RBuffer switches to the full state
-///   - When the RBuffer switches to the non-full state
-typedef void (*rbuffer_callback)(RBuffer *buf, void *data);
-
-struct rbuffer {
-  rbuffer_callback full_cb, nonfull_cb;
-  void *data;
-  size_t size;
-  // helper memory used to by rbuffer_reset if required
-  char *temp;
-  char *end_ptr, *read_ptr, *write_ptr;
-  char start_ptr[];
-};
-
-static inline size_t rbuffer_size(RBuffer *buf)
-  REAL_FATTR_ALWAYS_INLINE REAL_FATTR_NONNULL_ALL;
-
-static inline size_t rbuffer_size(RBuffer *buf)
-{
-  return buf->size;
-}
-
-static inline size_t rbuffer_capacity(RBuffer *buf)
-  REAL_FATTR_ALWAYS_INLINE REAL_FATTR_NONNULL_ALL;
-
-static inline size_t rbuffer_capacity(RBuffer *buf)
-{
-  return (size_t)(buf->end_ptr - buf->start_ptr);
-}
-
-static inline size_t rbuffer_space(RBuffer *buf)
-  REAL_FATTR_ALWAYS_INLINE REAL_FATTR_NONNULL_ALL;
-
-static inline size_t rbuffer_space(RBuffer *buf)
-{
-  return rbuffer_capacity(buf) - buf->size;
-}