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+# Lunatik C Code Style Guide
+
+This guide outlines the code style conventions observed in the `lunatik.h` header file, which should be followed for consistency across the Lunatik project. As a general rule, we tend to stick to [Linux kernel rules](https://www.kernel.org/doc/html/latest/process/coding-style.html).
+
+## File Headers
+
+All source files should begin with the SPDX license identifier and copyright information (e.g., [`lunatik.h`](lunatik.h:1-4)).
+
+```c
+/*
+ * SPDX-FileCopyrightText: (c) 2023-2025 Ring Zero Desenvolvimento de Software LTDA
+ * SPDX-License-Identifier: MIT OR GPL-2.0-only
+ */
+```
+
+## Includes
+
+Includes should be grouped, with system/kernel headers first, followed by Lua headers, and then project-specific headers. Use an empty line to separate groups (e.g., [`lunatik.h`](lunatik.h:9-16)).
+
+```c
+#include <linux/mutex.h>
+#include <linux/spinlock.h>
+#include <linux/slab.h>
+#include <linux/kref.h>
+
+#include <lua.h>
+#include <lauxlib.h>
+
+/* #include "project_header.h" (if applicable) */
+```
+
+## Indentation
+
+Use tabs for indentation (e.g., [`lunatik.h`](lunatik.h:20-25)). For consistent alignment, especially within multi-line macros, it is recommended to configure your text editor to display tabs as 8 spaces.
+
+## Bracing Style
+
+### Functions
+
+Functions use Allman style, with the opening brace on a new line after the function declaration (e.g., [`lunatik.h`](lunatik.h:37-43)).
+
+```c
+static inline bool lunatik_isready(lua_State *L)
+{
+	/* ... */
+}
+```
+
+### Control Structures (if, for, while, do-while)
+
+Control structures like `if`, `for`,`while` and `do-while` loops use K&R style
+(e.g., [`lunatik.h`](lunatik.h:20-25), [`lunatik.h`](lunatik.h:47-52)).
+
+```c
+if (condition) {
+	/* ... */
+}
+
+#define lunatik_handle(runtime, handler, ret, ...)	\
+do {							\
+	/* ... */					\
+} while (0)
+```
+
+## Naming Conventions
+
+### Macros
+
+Macros follow two conventions:
+
+* **Constants and Definitions**: Use `ALL_CAPS_WITH_UNDERSCORES` for macros defining constants or used for general definitions (e.g., [`lunatik.h`](lunatik.h:17), [`lunatik.h`](lunatik.h:190)).
+
+    ```c
+	#define LUNATIK_VERSION "Lunatik 3.6"
+	#define LUNATIK_ERR_NULLPTR	"null-pointer dereference"
+	```
+
+* **Function-like Macros**: Use `lowercase_with_underscores` for macros that behave like functions ; prefix them according to the module name (e.g., [`lunatik.h`](lunatik.h:19), [`lunatik.h`](lunatik.h:27)).
+
+    ```c
+    #define lunatik_locker(o, mutex_op, spin_op)
+    #define lunatik_newlock(o)
+    ```
+
+### Type Definitions (structs, enums)
+
+Type definitions (structs, enums) use `snake_case` with a `_t` suffix for the `typedef` alias. The struct tag itself can use `_s` suffix (e.g., [`lunatik.h`](lunatik.h:64-68)).
+
+```c
+typedef struct lunatik_reg_s {
+	const char *name;
+	lua_Integer value;
+} lunatik_reg_t;
+```
+
+### Functions
+
+Functions use `snake_case` with a prefix (e.g., [`lunatik.h`](lunatik.h:37), [`lunatik.h`](lunatik.h:101)).
+
+```c
+static inline bool lunatik_isready(lua_State *L)
+int lunatik_runtime(lunatik_object_t **pruntime, const char *script, bool sleep);
+```
+
+### Variables
+
+Variables use `snake_case` (e.g., [`lunatik.h`](lunatik.h:38), [`lunatik.h`](lunatik.h:148)).
+
+```c
+lua_State *L;
+lunatik_object_t *runtime;
+```
+
+## Macros
+
+Multi-line macros should use `\` for line continuation and be enclosed in a `do { ... } while(0)` block to ensure proper semicolon usage and scope. Align the `\` characters for readability. Parameters should be enclosed in parentheses when used within the macro body to avoid unexpected operator precedence issues (e.g., `(o)->sleep`)
+(e.g., [`lunatik.h`](lunatik.h:19-25), [`lunatik.h`](lunatik.h:46-52), [`lunatik.h`](lunatik.h:54-62)).
+
+```c
+#define lunatik_locker(o, mutex_op, spin_op)	\
+do {						\
+	if ((o)->sleep)				\
+		mutex_op(&(o)->mutex);		\
+	else					\
+		spin_op(&(o)->spin);		\
+} while(0)
+```
+
+## Comments
+
+### Block Comments
+
+Use C-style block comments (`/* ... */`) for multi-line comments, especially for file headers (e.g., [`lunatik.h`](lunatik.h:1-4)).
+
+```c
+/*
+ * This is a block comment.
+ */
+```
+
+### Inline Comments
+
+Use C-style block comments (`/* ... */`) for inline comments or short explanations, consistent with kernel practice (e.g., [`lunatik.h`](lunatik.h:40)).
+
+```c
+static inline bool lunatik_isready(lua_State *L)
+{
+	bool ready; /* This is an inline comment */
+	/* ... */
+}
+```
+
+## Whitespace
+
+### Binary Operators
+
+Use spaces around binary operators (`=`, `+`, `-`, `*`, `/`, `==`, `!=`, etc.) (e.g., [`lunatik.h`](lunatik.h:4), [`lunatik.h`](lunatik.h:21)).
+
+```c
+total = a + b;
+if (x == y)
+```
+
+### Commas
+
+Use a space after commas (e.g., [`lunatik.h`](lunatik.h:27), [`lunatik.h`](lunatik.h:48)).
+
+```c
+handler(L, ## __VA_ARGS__);
+const char *name, lua_Integer value;
+```
+
+### Function Calls
+
+No space between the function name and the opening parenthesis (e.g., [`lunatik.h`](lunatik.h:37)).
+
+```c
+lunatik_isready(L)
+```
+
+### Unary Operators
+
+No space between unary operators and their operand (e.g., `*ptr`, `&var`, `!condition`) (e.g., [`lunatik.h`](lunatik.h:98), [`lunatik.h`](lunatik.h:149)).
+
+```c
+*pruntime
+&object->kref
+!lunatik_getstate(runtime)
+```
+
+## Type Casting
+
+Type casts should be explicit and use parentheses around the type (e.g., [`lunatik.h`](lunatik.h:32), [`lunatik.h`](lunatik.h:307)).
+
+```c
+(lunatik_object_t **)lua_getextraspace(L)
+(char *)hook->field
+```
+
+## Function Parameters
+
+Parameters in function declarations should be clearly typed. If a parameter is a pointer, the `*` should be next to the variable name (e.g., [`lunatik.h`](lunatik.h:37), [`lunatik.h`](lunatik.h:101)).
+
+```c
+lua_State *L
+lunatik_object_t **pruntime
+```
+
+## Line Breaking
+
+Staying under 80 characters per line is [preferred](https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=bdc48fa11e46f867ea4d75fa59ee87a7f48be144), but [don’t stick to this rule against common sense](https://lkml.org/lkml/2020/5/29/1038).
+
+When a line exceeds the preferred limit, break it at a logical point, such as after a comma in a function argument list, after a binary operator, or before a new expression. Indent the continued line with tabs to align with the start of the expression or argument list.
+
+### Function Declarations and Calls
+
+Break after commas in parameter lists, aligning subsequent parameters (e.g., [`lunatik.h`](lunatik.h:101)).
+
+```c
+int lunatik_runtime(lunatik_object_t **pruntime,
+		    const char *script, bool sleep);
+```
+
+### Conditional Statements
+
+Break long conditional expressions after logical operators, aligning the continuation (e.g., [`lunatik.h`](lunatik.h:245-246)).
+
+```c
+return class != NULL &&
+       (pobject = luaL_testudata(L, ix, class->name)) != NULL ? *pobject : NULL;
+```
+
+## Line breaks, new lines and file Endings
+
+All source files must end with two empty lines. Otherwise, there mustn’t be multiple consecutive empty lines in the files.
+