feat(kernel): add pcb unit

kernel/inc/scheduling/pcb_state.h

@@ -0,0 +1,27 @@
+/**
+ * @file pcb_state.h
+ * @author Tomás Sánchez <[email protected]>
+ * @brief
+ * @version 0.1
+ * @date 05-10-2022
+ *
+ * @copyright Copyright (c) 2022
+ *
+ */
+
+#pragma once
+
+/**
+ * @brief A Process State.
+ *
+ */
+typedef enum ProcessState
+{
+	NEW,
+	READY,
+	EXECUTING,
+	SUSPENDED_READY,
+	BLOCKED,
+	SUSPENDED_BLOCKED,
+	TERMINATED
+} pcb_state_t;

kernel/inc/scheduling/pcb_unit.h

@@ -0,0 +1,43 @@
+/**
+ * @file pcb_unit.h
+ * @author Tomás Sánchez <[email protected]>
+ * @brief
+ * @version 0.1
+ * @date 05-10-2022
+ *
+ * @copyright Copyright (c) 2022
+ *
+ */
+
+#pragma once
+
+#include "pcb.h"
+#include "pcb_state.h"
+
+/**
+ * @brief A PCB Scheduler's Unit.
+ *
+ */
+typedef struct PcbUnit
+{
+	// The PCB Itself
+	pcb_t *_pcb;
+	// The Scheduler data
+	pcb_state_t state;
+} pcb_unit_t;
+
+/**
+ * @brief Creates a new PCB Unit
+ *
+ * @param pcb reference which contains the data
+ * @return a unit to be scheduled
+ */
+pcb_unit_t *
+new_pcb_unit(pcb_t *pcb);
+
+/**
+ * @brief Deallocates Memory used by a PCB_UNIT
+ *
+ * @param pcb_unit to be deleted
+ */
+void pcb_unit_destroy(void *pcb_unit);

kernel/src/scheduling/pcb_unit.c

@@ -0,0 +1,32 @@
+/**
+ * @file pcb_unit.c
+ * @author Tomás Sánchez <[email protected]>
+ * @brief
+ * @version 0.1
+ * @date 05-10-2022
+ *
+ * @copyright Copyright (c) 2022
+ *
+ */
+
+#include <stdlib.h>
+#include "pcb_unit.h"
+#include "pcb_state.h"
+
+pcb_unit_t *
+new_pcb_unit(pcb_t *pcb)
+{
+	pcb_unit_t *process = malloc(sizeof(pcb_unit_t));
+	process->_pcb = pcb;
+	process->state = NEW;
+}
+
+void pcb_unit_destroy(void *pcb_unit)
+{
+	if (pcb_unit)
+	{
+		pcb_unit_t *process = pcb_unit;
+		pcb_destroy(process->_pcb);
+		free(process);
+	}
+}