diff options
Diffstat (limited to 'kernel/include/buffer.h')
-rw-r--r-- | kernel/include/buffer.h | 40 |
1 files changed, 0 insertions, 40 deletions
diff --git a/kernel/include/buffer.h b/kernel/include/buffer.h deleted file mode 100644 index c47e2b4..0000000 --- a/kernel/include/buffer.h +++ /dev/null @@ -1,40 +0,0 @@ -#pragma once - -#include <stdint.h> -#include <stddef.h> - -// The buffer_t type is a simple reference-counted buffer type -// enabling the creation, sharing, slicing and concatenation of buffers -// without having to copy everything each time - -// Buffers are always allocated on the core kernel heap (kmalloc/kfree) - -// Once a buffer is allocated, its contents is immutable - -// Encoding and decoding functions for buffer contents are provided in -// a separate file (encode.h) - -struct buffer; -typedef struct buffer buffer_t; - -void buffer_ref(buffer_t*); // increase reference counter -void buffer_unref(buffer_t*); // decrease reference counter - -size_t buffer_len(buffer_t* buf); -size_t read_buffer(buffer_t* buf, char* to, size_t begin, size_t n); // returns num of bytes read - -buffer_t* buffer_from_bytes(const char* data, size_t n); // bytes are COPIED -buffer_t* buffer_from_bytes_nocopy(const char* data, size_t n, bool own_bytes); // bytes are NOT COPIED - -// these functions GIVE the buffer in order to create the new buffer, ie they do not increase RC -// the buffer is NOT GIVED if the new buffer could not be created (ie retval == 0) -buffer_t* buffer_slice(buffer_t* b, size_t begin, size_t n); -buffer_t* buffer_concat(buffer_t* a, buffer_t* b); - -// these functions KEEP a reference on the buffer (ie RC is incremented) -// the RC is NOT INCREMENTED if the new buffer cannot be created -buffer_t* buffer_slice_k(buffer_t* b, size_t begin, size_t n); -buffer_t* buffer_concat_k(buffer_t* a, buffer_t* b); - - -/* vim: set ts=4 sw=4 tw=0 noet :*/ |