blender/extern/verse/dist/vs_connection.c

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#include <stdlib.h>
#include "v_cmd_gen.h"
#if !defined(V_GENERATE_FUNC_MODE)
#include "verse.h"
#include "v_util.h"
#define VS_CONNECTION_CHUNK_SIZE 64
typedef struct{
VSession *session;
unsigned int session_count;
} VSSubscriptionList;
typedef struct{
VSession session;
uint32 node_id;
char name[128];
char pass[128];
} VSConnection;
static struct {
VSConnection *connection;
unsigned int connection_length;
VSSubscriptionList **list;
unsigned int list_length;
unsigned int current_session;
} VSConnectionStorage;
void vs_init_connection_storage(void)
{
VSConnectionStorage.connection = NULL;
VSConnectionStorage.connection_length = 0;
VSConnectionStorage.list = NULL;
VSConnectionStorage.list_length = 0;
VSConnectionStorage.current_session = 0;
}
void vs_add_new_connection(VSession session, const char *name, const char *pass, VNodeID node_id)
{
VSConnection *conn;
if(VSConnectionStorage.connection_length % VS_CONNECTION_CHUNK_SIZE == 0)
VSConnectionStorage.connection = realloc(VSConnectionStorage.connection, (sizeof *VSConnectionStorage.connection) * (VSConnectionStorage.connection_length + VS_CONNECTION_CHUNK_SIZE));
conn = &VSConnectionStorage.connection[VSConnectionStorage.connection_length];
conn->session = session;
conn->node_id = node_id;
v_strlcpy(conn->name, name, sizeof conn->name);
v_strlcpy(conn->pass, pass, sizeof conn->pass);
VSConnectionStorage.connection_length++;
}
uint32 vs_get_avatar(void)
{
return VSConnectionStorage.connection[VSConnectionStorage.current_session].node_id;
}
VSession vs_get_session(void)
{
return VSConnectionStorage.connection[VSConnectionStorage.current_session].session;
}
const char * vs_get_user_name(void)
{
return VSConnectionStorage.connection[VSConnectionStorage.current_session].name;
}
const char * vs_get_user_pass(void)
{
return VSConnectionStorage.connection[VSConnectionStorage.current_session].pass;
}
void vs_remove_connection(void)
{
unsigned int i, j;
VSession *session;
VSSubscriptionList *list;
session = VSConnectionStorage.connection[VSConnectionStorage.current_session].session;
for(i = 0; i < VSConnectionStorage.list_length; i++)
{
list = VSConnectionStorage.list[i];
for(j = 0; j < list->session_count && list->session[j] != session; j++);
if(j < list->session_count)
list->session[j] = list->session[--list->session_count];
}
j = --VSConnectionStorage.connection_length;
if(VSConnectionStorage.current_session < j)
{
VSConnectionStorage.connection[VSConnectionStorage.current_session].session = VSConnectionStorage.connection[j].session;
VSConnectionStorage.connection[VSConnectionStorage.current_session].node_id = VSConnectionStorage.connection[j].node_id;
}
else
VSConnectionStorage.current_session = 0;
}
void vs_set_next_session(void)
{
if(++VSConnectionStorage.current_session >= VSConnectionStorage.connection_length)
VSConnectionStorage.current_session = 0;
if(VSConnectionStorage.connection_length != 0)
verse_session_set(VSConnectionStorage.connection[VSConnectionStorage.current_session].session);
}
VSSubscriptionList *vs_create_subscription_list(void)
{
VSSubscriptionList *list;
list = malloc(sizeof *list);
if(VSConnectionStorage.list_length % VS_CONNECTION_CHUNK_SIZE == 0)
VSConnectionStorage.list = realloc(VSConnectionStorage.list, (sizeof *VSConnectionStorage.list) * (VSConnectionStorage.list_length + VS_CONNECTION_CHUNK_SIZE));
VSConnectionStorage.list[VSConnectionStorage.list_length] = list;
list->session = NULL;
list->session_count = 0;
VSConnectionStorage.list_length++;
return list;
}
void vs_destroy_subscription_list(VSSubscriptionList *list)
{
unsigned int i;
if(list == NULL)
return;
if(list->session != NULL)
free(list->session);
for(i = 0; i < VSConnectionStorage.list_length && VSConnectionStorage.list[i] != list; i++)
;
if(i < VSConnectionStorage.list_length)
VSConnectionStorage.list[i] = VSConnectionStorage.list[--VSConnectionStorage.list_length];
free(list);
}
/* Returns 1 if subscriber was added, 0 if not (typically meaning it was already on the list). */
int vs_add_new_subscriptor(VSSubscriptionList *list)
{
unsigned int i;
if(list->session_count % VS_CONNECTION_CHUNK_SIZE == 0)
list->session = realloc(list->session, (sizeof *list->session) * (list->session_count + VS_CONNECTION_CHUNK_SIZE));
for(i = 0; i < list->session_count; i++)
if(list->session[i] == VSConnectionStorage.connection[VSConnectionStorage.current_session].session)
return 0;
list->session[list->session_count] = VSConnectionStorage.connection[VSConnectionStorage.current_session].session;
list->session_count++;
return 1;
}
void vs_remove_subscriptor(VSSubscriptionList *list)
{
unsigned int i;
VSession *session;
session = VSConnectionStorage.connection[VSConnectionStorage.current_session].session;
for(i = 0; i < list->session_count && list->session[i] != session; i++);
if(i < list->session_count)
list->session[i] = list->session[--list->session_count];
}
size_t vs_get_subscript_count(const VSSubscriptionList *list)
{
return list != NULL ? list->session_count : 0;
}
void vs_set_subscript_session(VSSubscriptionList *list, unsigned int session)
{
verse_session_set(list->session[session]);
}
void vs_reset_subscript_session(void)
{
verse_session_set(VSConnectionStorage.connection[VSConnectionStorage.current_session].session);
}
#endif