M src/kernel/mm/memory.c → src/kernel/mm/memory.c

@@ -1,5 +1,7 @@
 #include "cedos/mm/memory.h"
 
+#include "assert.h"
+
 struct memblock {
     struct memblock *next;
     int size;
@@ -31,19 +33,26 @@ void* os_kernel_malloc(size_t size) {
     uint32_t addr = (uint32_t)(malloc_next_free);
 
     // TODO: test if memory block is large enough
+    assert(malloc_next_free->size == 0);
+
     addr += sizeof(struct memblock);
     addr += size;
 
+    // TODO: in some cases, one might rather link to the
+    //  next block after that instead of creating a new block
+
     struct memblock *new_block = (struct memblock*)(addr);
+    
     new_block->next = malloc_next_free->next;
-    
-    // TODO: maybe not big enough?
     new_block->size = 0;
 
     malloc_next_free->next = new_block;
     malloc_next_free->size = size;
 
-    return (void*)(&malloc_next_free[1]);
+    void *pointer = (void*)(&malloc_next_free[1]);
+    malloc_next_free = new_block;
+
+    return pointer;
 }
 
 /*!

M src/kernel/sched/sched.c → src/kernel/sched/sched.c

@@ -3,6 +3,7 @@ #include "cedos/sched/process.h"
 #include "cedos/sched/sched_strats.h"
 
 #include "cedos/mm/paging.h"
+#include "cedos/mm/memory.h"
 
 #include "cedos/drivers/console.h"
 #include "cedos/drivers/speaker.h"
@@ -29,9 +30,8 @@ #define PRINT_DBG(...) {}
 #endif
 
 PROCESS* get_slot(void) {
-    static PROCESS free_slots[8];
-    static uint32_t index = 0;
-    return &(free_slots[index++]);
+    PROCESS *new_process = (PROCESS*)os_kernel_malloc(sizeof(PROCESS));
+    return new_process;
 }
 
 PROCESS_ID current_pid;