cleanup: explicitly mark unused parameters (-Wunused-parameter)

[lttng-ust.git] / libringbuffer / backend.h

diff --git a/libringbuffer/backend.h b/libringbuffer/backend.h
index 698994c21881a78a7c7beb160c0daa3a47e689fe..0b482182a59b0400d60386a599ee8df26cd2959b 100644 (file)
--- a/libringbuffer/backend.h
+++ b/libringbuffer/backend.h
@@ -23,15 +23,15 @@
 
 /* Ring buffer backend access (read/write) */
 
-__attribute__((visibility("hidden")))
 extern size_t lib_ring_buffer_read(struct lttng_ust_lib_ring_buffer_backend *bufb,
                                   size_t offset, void *dest, size_t len,
-                                  struct lttng_ust_shm_handle *handle);
+                                  struct lttng_ust_shm_handle *handle)
+       __attribute__((visibility("hidden")));
 
-__attribute__((visibility("hidden")))
 extern int lib_ring_buffer_read_cstr(struct lttng_ust_lib_ring_buffer_backend *bufb,
                                     size_t offset, void *dest, size_t len,
-                                    struct lttng_ust_shm_handle *handle);
+                                    struct lttng_ust_shm_handle *handle)
+       __attribute__((visibility("hidden")));
 
 /*
  * Return the address where a given offset is located.
@@ -39,17 +39,17 @@ extern int lib_ring_buffer_read_cstr(struct lttng_ust_lib_ring_buffer_backend *b
  * it's never on a page boundary, it's safe to write directly to this address,
  * as long as the write is never bigger than a page size.
  */
-__attribute__((visibility("hidden")))
 extern void *
 lib_ring_buffer_offset_address(struct lttng_ust_lib_ring_buffer_backend *bufb,
                               size_t offset,
-                              struct lttng_ust_shm_handle *handle);
+                              struct lttng_ust_shm_handle *handle)
+       __attribute__((visibility("hidden")));
 
-__attribute__((visibility("hidden")))
 extern void *
 lib_ring_buffer_read_offset_address(struct lttng_ust_lib_ring_buffer_backend *bufb,
                                    size_t offset,
-                                   struct lttng_ust_shm_handle *handle);
+                                   struct lttng_ust_shm_handle *handle)
+       __attribute__((visibility("hidden")));
 
 /**
  * lib_ring_buffer_write - write data to a buffer backend
@@ -63,14 +63,20 @@ lib_ring_buffer_read_offset_address(struct lttng_ust_lib_ring_buffer_backend *bu
  * backend-specific memcpy() operation. Calls the slow path (_ring_buffer_write)
  * if copy is crossing a page boundary.
  */
-static inline __attribute__((always_inline))
+static inline
+void lib_ring_buffer_write(const struct lttng_ust_lib_ring_buffer_config *config,
+                          struct lttng_ust_lib_ring_buffer_ctx *ctx,
+                          const void *src, size_t len)
+       __attribute__((always_inline));
+static inline
 void lib_ring_buffer_write(const struct lttng_ust_lib_ring_buffer_config *config,
                           struct lttng_ust_lib_ring_buffer_ctx *ctx,
                           const void *src, size_t len)
 {
-       struct channel_backend *chanb = &ctx->chan->backend;
-       struct lttng_ust_shm_handle *handle = ctx->handle;
-       size_t offset = ctx->buf_offset;
+       struct lttng_ust_lib_ring_buffer_ctx_private *ctx_private = ctx->priv;
+       struct channel_backend *chanb = &ctx_private->chan->backend;
+       struct lttng_ust_shm_handle *handle = ctx_private->chan->handle;
+       size_t offset = ctx_private->buf_offset;
        struct lttng_ust_lib_ring_buffer_backend_pages *backend_pages;
        void *p;
 
@@ -90,7 +96,7 @@ void lib_ring_buffer_write(const struct lttng_ust_lib_ring_buffer_config *config
        if (caa_unlikely(!p))
                return;
        lib_ring_buffer_do_copy(config, p, src, len);
-       ctx->buf_offset += len;
+       ctx_private->buf_offset += len;
 }
 
 /*
@@ -98,9 +104,14 @@ void lib_ring_buffer_write(const struct lttng_ust_lib_ring_buffer_config *config
  * terminating character is found in @src. Returns the number of bytes
  * copied. Does *not* terminate @dest with NULL terminating character.
  */
-static inline __attribute__((always_inline))
+static inline
 size_t lib_ring_buffer_do_strcpy(const struct lttng_ust_lib_ring_buffer_config *config,
                char *dest, const char *src, size_t len)
+       __attribute__((always_inline));
+static inline
+size_t lib_ring_buffer_do_strcpy(
+               const struct lttng_ust_lib_ring_buffer_config *config  __attribute__((unused)),
+               char *dest, const char *src, size_t len)
 {
        size_t count;
 
@@ -134,15 +145,21 @@ size_t lib_ring_buffer_do_strcpy(const struct lttng_ust_lib_ring_buffer_config *
  * character is found in @src before @len - 1 characters are copied, pad
  * the buffer with @pad characters (e.g. '#').
  */
-static inline __attribute__((always_inline))
+static inline
+void lib_ring_buffer_strcpy(const struct lttng_ust_lib_ring_buffer_config *config,
+                          struct lttng_ust_lib_ring_buffer_ctx *ctx,
+                          const char *src, size_t len, char pad)
+       __attribute__((always_inline));
+static inline
 void lib_ring_buffer_strcpy(const struct lttng_ust_lib_ring_buffer_config *config,
                           struct lttng_ust_lib_ring_buffer_ctx *ctx,
                           const char *src, size_t len, char pad)
 {
-       struct channel_backend *chanb = &ctx->chan->backend;
-       struct lttng_ust_shm_handle *handle = ctx->handle;
+       struct lttng_ust_lib_ring_buffer_ctx_private *ctx_private = ctx->priv;
+       struct channel_backend *chanb = &ctx_private->chan->backend;
+       struct lttng_ust_shm_handle *handle = ctx_private->chan->handle;
        size_t count;
-       size_t offset = ctx->buf_offset;
+       size_t offset = ctx_private->buf_offset;
        struct lttng_ust_lib_ring_buffer_backend_pages *backend_pages;
        void *p;
 
@@ -179,7 +196,7 @@ void lib_ring_buffer_strcpy(const struct lttng_ust_lib_ring_buffer_config *confi
        if (caa_unlikely(!p))
                return;
        lib_ring_buffer_do_memset(p, '\0', 1);
-       ctx->buf_offset += len;
+       ctx_private->buf_offset += len;
 }
 
 /**
@@ -198,15 +215,21 @@ void lib_ring_buffer_strcpy(const struct lttng_ust_lib_ring_buffer_config *confi
  * The length of the pascal strings in the ring buffer is explicit: it
  * is either the array or sequence length.
  */
-static inline __attribute__((always_inline))
+static inline
+void lib_ring_buffer_pstrcpy(const struct lttng_ust_lib_ring_buffer_config *config,
+                          struct lttng_ust_lib_ring_buffer_ctx *ctx,
+                          const char *src, size_t len, char pad)
+       __attribute__((always_inline));
+static inline
 void lib_ring_buffer_pstrcpy(const struct lttng_ust_lib_ring_buffer_config *config,
                           struct lttng_ust_lib_ring_buffer_ctx *ctx,
                           const char *src, size_t len, char pad)
 {
-       struct channel_backend *chanb = &ctx->chan->backend;
-       struct lttng_ust_shm_handle *handle = ctx->handle;
+       struct lttng_ust_lib_ring_buffer_ctx_private *ctx_private = ctx->priv;
+       struct channel_backend *chanb = &ctx_private->chan->backend;
+       struct lttng_ust_shm_handle *handle = ctx_private->chan->handle;
        size_t count;
-       size_t offset = ctx->buf_offset;
+       size_t offset = ctx_private->buf_offset;
        struct lttng_ust_lib_ring_buffer_backend_pages *backend_pages;
        void *p;
 
@@ -237,7 +260,7 @@ void lib_ring_buffer_pstrcpy(const struct lttng_ust_lib_ring_buffer_config *conf
                        return;
                lib_ring_buffer_do_memset(p, pad, pad_len);
        }
-       ctx->buf_offset += len;
+       ctx_private->buf_offset += len;
 }
 
 /*