core: refactor core API to be in proper style

Bring the rest of the core API to be in line with the project coding
style. This commit also makes the coding style change formal by updating
the coding style document in the documentation.

Signed-off-by: Danny Holman <dholman@gymli.org>

4 files changed, 93 insertions, 8 deletions

diff --git a/core/abort.c b/core/abort.c
index cd66ab1..5ee42f6 100644
--- a/core/abort.c
+++ b/core/abort.c
@@ -1,4 +1,26 @@
+/*
+ * Rune Game Engine
+ * Copyright 2024 Danny Holman <dholman@gymli.org>
+ *
+ * This software is provided 'as-is', without any express or implied
+ * warranty.  In no event will the authors be held liable for any damages
+ * arising from the use of this software.
+ *
+ * Permission is granted to anyone to use this software for any purpose,
+ * including commercial applications, and to alter it and redistribute it
+ * freely, subject to the following restrictions:
+ *
+ * 1. The origin of this software must not be misrepresented; you must not
+ *    claim that you wrote the original software. If you use this software
+ *    in a product, an acknowledgment in the product documentation would be
+ *    appreciated but is not required.
+ * 2. Altered source versions must be plainly marked as such, and must not be
+ *    misrepresented as being the original software.
+ * 3. This notice may not be removed or altered from any source distribution.
+ */
+
 #include <rune/core/abort.h>
+#include <rune/core/alloc.h>
 #include <rune/core/init.h>
 #include <rune/core/logging.h>
 #include <rune/util/exits.h>
diff --git a/core/callbacks.c b/core/callbacks.c
index 03b7c46..ea7f50e 100644
--- a/core/callbacks.c
+++ b/core/callbacks.c
@@ -1,3 +1,24 @@
+/*
+ * Rune Game Engine
+ * Copyright 2024 Danny Holman <dholman@gymli.org>
+ *
+ * This software is provided 'as-is', without any express or implied
+ * warranty.  In no event will the authors be held liable for any damages
+ * arising from the use of this software.
+ *
+ * Permission is granted to anyone to use this software for any purpose,
+ * including commercial applications, and to alter it and redistribute it
+ * freely, subject to the following restrictions:
+ *
+ * 1. The origin of this software must not be misrepresented; you must not
+ *    claim that you wrote the original software. If you use this software
+ *    in a product, an acknowledgment in the product documentation would be
+ *    appreciated but is not required.
+ * 2. Altered source versions must be plainly marked as such, and must not be
+ *    misrepresented as being the original software.
+ * 3. This notice may not be removed or altered from any source distribution.
+ */
+
 #include <rune/core/callbacks.h>
 #include <rune/core/logging.h>
 
diff --git a/core/mod.c b/core/mod.c
index 4a4eac8..3d9e710 100644
--- a/core/mod.c
+++ b/core/mod.c
@@ -1,3 +1,24 @@
+/*
+ * Rune Game Engine
+ * Copyright 2024 Danny Holman <dholman@gymli.org>
+ *
+ * This software is provided 'as-is', without any express or implied
+ * warranty.  In no event will the authors be held liable for any damages
+ * arising from the use of this software.
+ *
+ * Permission is granted to anyone to use this software for any purpose,
+ * including commercial applications, and to alter it and redistribute it
+ * freely, subject to the following restrictions:
+ *
+ * 1. The origin of this software must not be misrepresented; you must not
+ *    claim that you wrote the original software. If you use this software
+ *    in a product, an acknowledgment in the product documentation would be
+ *    appreciated but is not required.
+ * 2. Altered source versions must be plainly marked as such, and must not be
+ *    misrepresented as being the original software.
+ * 3. This notice may not be removed or altered from any source distribution.
+ */
+
 #include <rune/core/mod.h>
 #include <rune/core/logging.h>
 #include <rune/core/alloc.h>
@@ -6,7 +27,7 @@
 #include <dirent.h>
 #include <dlfcn.h>
 
-struct list_head *mods = NULL;
+list_head_t *mods = NULL;
 
 void _load_mod(const char *filename) {
         char mod_path[4096];
@@ -31,7 +52,7 @@ void rune_load_mods(void) {
 }
 
 void rune_init_mods(void) {
-        struct list_head *temp = mods;
+        list_head_t *temp = mods;
         struct mod *mod;
         while (temp != NULL) {
                 mod = (struct mod*)((void*)temp - offsetof(struct mod, list));
@@ -44,7 +65,7 @@ void rune_close_mods(void) {
         if (mods == NULL)
                 return;
 
-        struct list_head *temp = mods;
+        list_head_t *temp = mods;
         struct mod *mod;
         while (temp != NULL) {
                 mod = (struct mod*)((void*)temp - offsetof(struct mod, list));
diff --git a/core/thread.c b/core/thread.c
index 45de463..3c5db8c 100644
--- a/core/thread.c
+++ b/core/thread.c
@@ -1,3 +1,24 @@
+/*
+ * Rune Game Engine
+ * Copyright 2024 Danny Holman <dholman@gymli.org>
+ *
+ * This software is provided 'as-is', without any express or implied
+ * warranty.  In no event will the authors be held liable for any damages
+ * arising from the use of this software.
+ *
+ * Permission is granted to anyone to use this software for any purpose,
+ * including commercial applications, and to alter it and redistribute it
+ * freely, subject to the following restrictions:
+ *
+ * 1. The origin of this software must not be misrepresented; you must not
+ *    claim that you wrote the original software. If you use this software
+ *    in a product, an acknowledgment in the product documentation would be
+ *    appreciated but is not required.
+ * 2. Altered source versions must be plainly marked as such, and must not be
+ *    misrepresented as being the original software.
+ * 3. This notice may not be removed or altered from any source distribution.
+ */
+
 #include <rune/core/thread.h>
 #include <rune/core/logging.h>
 #include <rune/core/alloc.h>
@@ -5,8 +26,8 @@
 #include <string.h>
 #include <stdatomic.h>
 
-static struct list_head *threads = NULL;
-static struct list_head *mutexes = NULL;
+static list_head_t *threads = NULL;
+static list_head_t *mutexes = NULL;
 static int next_tid = 0;
 static int next_mid = 0;
 
@@ -20,7 +41,7 @@ static struct thread* _find_thread_by_handle(void *handle) {
         if (threads == NULL)
                 return NULL;
 
-        struct list_head *temp = threads;
+        list_head_t *temp = threads;
         struct thread *ret;
         while (temp != NULL) {
                 ret = (struct thread*)((void*)temp - offsetof(struct thread, list));
@@ -35,7 +56,7 @@ static struct thread* _find_thread_by_id(int ID) {
         if (threads == NULL)
                 return NULL;
 
-        struct list_head *temp = threads;
+        list_head_t *temp = threads;
         struct thread *ret;
         while (temp != NULL) {
                 ret = (struct thread*)((void*)temp - offsetof(struct thread, list));
@@ -50,7 +71,7 @@ static struct mutex* _find_mutex_by_id(int ID) {
         if (mutexes == NULL)
                 return NULL;
 
-        struct list_head *temp = mutexes;
+        list_head_t *temp = mutexes;
         struct mutex *ret;
         while (temp != NULL) {
                 ret = (struct mutex*)((void*)temp - offsetof(struct mutex, list));