From: Lukas Krickl <lukas@krickl.dev>
Date: Mon, 23 Feb 2026 14:54:00 +0000 (+0100)
Subject: arena: Added arena alloc and tests
X-Git-Url: https://git.krickl.dev/?a=commitdiff_plain;h=0f56954a5ba1c5938384fe9024e45ad6c122faaa;p=lrts%2F.git

arena: Added arena alloc and tests
---

diff --git a/src/test.c b/src/test.c
index bc6906d..9e9f97b 100644
--- a/src/test.c
+++ b/src/test.c
@@ -10,6 +10,7 @@
 
 #ifdef LRTS_IMPL 
 #include "tests/t_args.c"
+#include "tests/t_arena.c"
 #endif
 
 int main(int argc, char **argv) {
@@ -19,6 +20,7 @@ int main(int argc, char **argv) {
   lrts_getopt(argc, argv, lrts_cfg());
 	
 	T_TESTCASE("test-argv", t_test_argv);
+	T_TESTCASE("test-arena", t_test_arena);
 
   T_TESTEND("lrts test");
 
diff --git a/src/tests/t_arena.c b/src/tests/t_arena.c
new file mode 100644
index 0000000..a6701b7
--- /dev/null
+++ b/src/tests/t_arena.c
@@ -0,0 +1,13 @@
+#include "../u_arena.h"
+#include "t_defs.h"
+
+int t_test_arena(void) {
+	struct u_arena a = u_arena_init(1, 2);
+	T_ASSERT(a.err == 0, "Areana failed to allocate");
+	T_ASSERT(a.data, "Areana failed to allocate");
+	T_ASSERT(a.o_max == 2, "Invalid max");
+	T_ASSERT(a.o_size == 1, "Invalid size");
+
+
+	return 0;
+}
diff --git a/src/tests/t_defs.h b/src/tests/t_defs.h
index 7290a49..401200e 100644
--- a/src/tests/t_defs.h
+++ b/src/tests/t_defs.h
@@ -6,6 +6,14 @@
 
 #define T_TESTEND(name) { u_fprintf(u_stderr, "=== %s ===\n", name); }
 
+/* asserta a test if expr is false prints message and returns 1 */
+#define T_ASSERT(expr, message) {\
+	if (!(expr)) { \
+		u_log(U_LOG_CRIT, "\n%s:%d: %s\n", __FILE__, __LINE__, message); \
+		return 1; \
+	} \
+}
+
 /**
  * Runs a test case
  * Test functions should return 0 when they succeed otherwise 1
diff --git a/src/u_arena.c b/src/u_arena.c
index 46c89a5..5702f2a 100644
--- a/src/u_arena.c
+++ b/src/u_arena.c
@@ -1,2 +1,18 @@
 #include "u_arena.h"
+#include "u_mem.h"
+#include "u_log.h"
 
+struct u_arena u_arena_init(u32 o_size, u32 o_max) {
+	struct u_arena a;
+	memset(&a, 0, sizeof(a));
+	a.o_size = o_size;
+	a.o_max = o_max;
+
+	a.data = u_malloc(o_size * o_max);
+	if (a.data == LRTS_NULL) {
+		u_log(U_LOG_ERR, "Unable to malloc arena of size %d\n", o_size * o_max);
+		a.err = U_ERRNO_MALLOC_FAIL;
+	}
+
+	return a;
+}
diff --git a/src/u_errno.h b/src/u_errno.h
index 462a633..a130185 100644
--- a/src/u_errno.h
+++ b/src/u_errno.h
@@ -20,7 +20,8 @@ extern char u_errno_message[U_ERRNO_MESSAGE_MAX];
  */
 enum u_errno_code {
 	U_ERRNO_OK = 0,
-	U_ERRNO_FAIL
+	U_ERRNO_FAIL,
+	U_ERRNO_MALLOC_FAIL
 };
 
 #endif
diff --git a/src/u_log.c b/src/u_log.c
index 93a94ea..54d24c8 100644
--- a/src/u_log.c
+++ b/src/u_log.c
@@ -15,7 +15,7 @@ int u_log(enum u_log_levels level, const char *fmt, ...) {
 		return 0;
 	}
 	va_start(args, fmt);
-	res = u_fprintf(u_stderr, fmt, args);
+	res = u_vfprintf(u_stderr, fmt, args);
 	va_end(args);
 	return res;
 }