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#include <assert.h>
#include <string.h>
#include "hash.h"
#include "session.h"
#include "http_decoder_util.h"
struct event_queue
{
struct session_event *head; // del from head
struct session_event *tail; // add to tail
};
struct event_queue g_event_queue = {.head = NULL, .tail = NULL};
/******************************************************************************
* session event
******************************************************************************/
void session_event_push(struct session_event *event)
{
printf("EVENT PUSH: %s\n", event->event_name);
event->next = NULL;
// none node
if (g_event_queue.head == NULL && g_event_queue.tail == NULL)
{
g_event_queue.head = event;
g_event_queue.tail = event;
}
// only one node
else if (g_event_queue.head == g_event_queue.tail)
{
g_event_queue.tail->next = event;
g_event_queue.tail = event;
}
else
// mutil node
{
g_event_queue.tail->next = event;
g_event_queue.tail = event;
}
}
struct session_event *session_event_pop()
{
struct session_event *temp = g_event_queue.head;
// none node
if (g_event_queue.head == NULL && g_event_queue.tail == NULL)
{
return NULL;
}
// only one node
else if (g_event_queue.head == g_event_queue.tail)
{
g_event_queue.head = NULL;
g_event_queue.tail = NULL;
temp->next = NULL;
printf("EVENT POP : %s\n", temp->event_name);
return temp;
}
else
// mutil node
{
g_event_queue.head = temp->next;
temp->next = NULL;
printf("EVENT POP : %s\n", temp->event_name);
return temp;
}
}
/******************************************************************************
* session derive/trigger
******************************************************************************/
struct stellar_session *session_derive(struct stellar_session *session, const char *session_name)
{
struct stellar_session *new_session = safe_alloc(struct stellar_session, 1);
assert(new_session);
new_session->father = session;
new_session->session_name = session_name;
printf("SESSION DERIVER: %s\n", session_name);
return new_session;
}
void session_trigger(struct stellar_session *session, const char *event_name)
{
struct session_event *event = safe_alloc(struct session_event, 1);
assert(event);
event->session = session;
event->event_name = event_name;
session_event_push(event);
}
/******************************************************************************
* session ex data
******************************************************************************/
size_t session_register_ex_data_index(const char *key)
{
size_t hash_value = 0;
size_t hash_index = 0;
HASH_JEN(key, strlen(key), hash_value);
hash_index = hash_value % EX_DATA_MAX_NUM;
return hash_index;
}
void session_set_ex_data(struct stellar_session *session, int idx, void *ex_data, free_callback *free_cb, void *cb_arg)
{
assert(idx >= 0 && idx < EX_DATA_MAX_NUM);
assert(session->ex_data[idx].ex_data == NULL);
assert(session->ex_data[idx].free_cb == NULL);
assert(session->ex_data[idx].cb_arg == NULL);
session->ex_data[idx].ex_data = ex_data;
session->ex_data[idx].free_cb = free_cb;
session->ex_data[idx].cb_arg = cb_arg;
}
void *session_get_ex_data(struct stellar_session *session, int idx)
{
assert(idx >= 0 && idx < EX_DATA_MAX_NUM);
return session->ex_data[idx].ex_data;
}
void session_del_ex_data(struct stellar_session *session, int idx)
{
assert(idx >= 0 && idx < EX_DATA_MAX_NUM);
assert(session->ex_data[idx].ex_data);
session->ex_data[idx].ex_data = NULL;
session->ex_data[idx].free_cb = NULL;
session->ex_data[idx].cb_arg = NULL;
}
void session_free_ex_data(struct stellar_session *session)
{
assert(session);
for (size_t i = 0; i < EX_DATA_MAX_NUM; i++)
{
struct session_ex_data *exdata = &session->ex_data[i];
if (exdata->free_cb)
{
exdata->free_cb(exdata->ex_data, exdata->cb_arg);
}
exdata->free_cb = NULL;
exdata->cb_arg = NULL;
exdata->ex_data = NULL;
}
}
/******************************************************************************
* session get data
******************************************************************************/
const char *session_get_l4_payload(struct stellar_session *session)
{
return session->l7_payload;
}
size_t session_get_l4_payload_length(struct stellar_session *session)
{
return session->l7_payload_length;
}
uint8_t session_get_l4_dir(struct stellar_session *session)
{
return session->current_packet_dir;
}
void pm_session_dettach_me(struct stellar_session *session)
{
printf("pm_session_dettach_me: %s\n", session->session_name);
}
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