Basic apis' ready

src/fsm.c

@@ -0,0 +1,89 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <memory.h>
+#include "fsm.h"
+
+fsm_t*
+create_new_fsm(const char* fsm_name)
+{
+
+    fsm_t *fsm = calloc(1, sizeof(fsm_t));
+    strncpy(fsm->fsm_name, fsm_name, MAX_FSM_NAME_SIZE - 1 );
+    fsm->fsm_name[MAX_FSM_NAME_SIZE] = '\0';
+    return fsm;
+
+}
+
+state_t*
+create_new_state(char *state_name,
+                    fsm_bool_t is_final){
+
+    assert(state_name);
+
+    state_t *state = calloc(1, sizeof(state_t));
+
+    strncpy(state->state_name, state_name, MAX_STATE_NAME_SIZE - 1);
+    state->state_name[MAX_STATE_NAME_SIZE] = '\0';
+
+    tt_t *trans_table = &(state->state_trans_table);
+    tt_entry_t *tt_entry_ptr = NULL;
+    
+    FSM_ITERATE_TRANS_TABLE_BEGIN(trans_table, tt_entry_ptr){
+        tt_entry_ptr->next_state = NULL;
+    }FSM_ITERATE_TRANS_TABLE_END(trans_table, tt_entry_ptr)
+
+    state->is_final = is_final;
+
+    return state;
+}
+
+void
+set_fsm_initial_state(fsm_t *fsm, state_t *state){
+
+    assert(!fsm->initial_state);
+    fsm->initial_state = state;
+}
+
+
+tt_entry_t*
+get_next_empty_tt_entry(tt_t *trans_table){
+
+    tt_entry_t* tt_entry_ptr = NULL;
+
+    assert(trans_table);
+
+    FSM_ITERATE_TRANS_TABLE_BEGIN(trans_table, tt_entry_ptr){
+        if( is_tt_entry_empty(tt_entry_ptr) == FSM_TRUE )
+                break;
+    }FSM_ITERATE_TRANS_TABLE_END(trans_table, tt_entry_ptr)
+
+
+    if(is_tt_entry_empty(tt_entry_ptr) == FSM_TRUE)
+        return tt_entry_ptr;
+
+    return NULL;
+}
+
+tt_entry_t*
+create_and_insert_new_tt_entry(tt_t *trans_table,
+                                char *transition_key,
+                                unsigned int sizeof_key,
+                                state_t* next_state){
+
+    
+    assert( sizeof transition_key < MAX_TRANSITION_KEY_SIZE);
+
+    tt_entry_t *tt_entry_ptr = get_next_empty_tt_entry(trans_table);
+
+    if(!tt_entry_ptr){
+        printf("FATAL : Transition Table is Full\n");
+        return NULL;
+    }
+
+    memcpy(tt_entry_ptr->transition_key , transition_key, sizeof_key);
+    tt_entry_ptr->transition_key[sizeof_key] = '\0';
+    tt_entry_ptr->transition_key_size = sizeof_key;
+    tt_entry_ptr->next_state = next_state;
+
+    return tt_entry_ptr;
+}