CE allocate tokens with arena

ce/Makefile

@@ -3,6 +3,7 @@ include ../make/ufuncs.mk
 $(eval $(call add_lib,libstring))
 $(eval $(call add_lib,libprocess))
 $(eval $(call add_lib,libaux))
+$(eval $(call add_lib,libarena))
 $(eval $(call add_include,libterminal))
 
 cflags += -DPRINTF_INCLUDE_CONFIG_H=1

ce/ce.c

@@ -1,3 +1,4 @@
+#include <arena.h>
 #include <desc.h>
 #include <liballoc.h>
 #include <list.h>
@@ -27,13 +28,15 @@ static int e_pgid;
 
 static bool run = true;
 
+static struct arena arena;
+
 static void putch (char ch) { mail_send (e_pgid, &ch, 1); }
 void putchar_ (char ch) { putch (ch); }
 
 static bool tokenize_line (void* ctx, const char* start, size_t len) {
   struct list_node_link** head = ctx;
 
-  struct token* token = malloc (sizeof (*token));
+  struct token* token = arena_malloc (&arena, sizeof (*token));
 
   if (token == NULL)
     return false;
@@ -46,15 +49,6 @@ static bool tokenize_line (void* ctx, const char* start, size_t len) {
   return true;
 }
 
-static void free_tokens (struct list_node_link* tokens) {
-  struct list_node_link *token_link, *token_tmp_link;
-  list_foreach (tokens, token_link, token_tmp_link) {
-    struct token* token = list_entry (token_link, struct token, tokens_link);
-    list_remove (tokens, &token->tokens_link);
-    free (token);
-  }
-}
-
 static void cmd_echo (struct list_node_link* tokens) {
   struct list_node_link *token_link, *token_tmp_link;
   list_foreach (tokens, token_link, token_tmp_link) {
@@ -190,7 +184,7 @@ static void exec_line (const char* line) {
   if (tokens != NULL)
     exec_tokens (tokens);
 
-  free_tokens (tokens);
+  arena_reset (&arena);
 }
 
 void app_main (void) {
@@ -223,4 +217,6 @@ void app_main (void) {
     line_cursor = 0;
     memset (line_buffer, 0, sizeof (line_buffer));
   }
+
+  arena_destroy (&arena);
 }

libarena/arena.h

@@ -2,6 +2,7 @@
 #define _LIBARENA_ARENA_H
 
 #include <stddef.h>
+#include <stdint.h>
 
 #define ARENA_CHUNK_CAPACITY (8 * 1024)