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#include <sys/socket.h>
#include <sys/un.h>
#include <stdio.h>
#include <gtk/gtk.h>
#include "daemon.h"
#include "../daemon/common.h"
#include "connection.h"
int sock = -1;
GIOChannel *channel = NULL;
GSList *send_message_queue = NULL;
static void dispatch(message_t *m) {
switch (m->code) {
case MSG_PACKET :
conn_new((ipq_packet_msg_t*) (m+1));
break;
default:
break;
}
g_free(m);
}
static gboolean recv_work() {
static guint8 temp[sizeof(message_t)];
static message_t *m = NULL;
static guint index = 0;
guint8 *p;
size_t l;
ssize_t r;
if (index < sizeof(message_t)) {
p = temp + index;
l = sizeof(message_t);
} else {
p = ((guint8*) m) + index;
l = m->length+sizeof(message_t);
}
if ((r = read(sock, p, l-index)) < 0) {
g_message("read() failed, exiting.");
gtk_main_quit();
return FALSE;
}
index += r;
if (index == sizeof(message_t)) {
m = g_malloc(((message_t*) temp)->length + sizeof(message_t));
memcpy(m, temp, sizeof(message_t));
}
if (index >= sizeof(message_t))
if (index == sizeof(message_t) + m->length) {
dispatch(m);
m = NULL;
index = 0;
}
return TRUE;
}
static gboolean send_work() {
static message_t *m = NULL;
static int index = 0;
guint l, r;
guint8* p;
if (!m) {
if (!send_message_queue)
return FALSE;
m = (message_t*) send_message_queue->data;
send_message_queue = g_slist_remove(send_message_queue, m);
index = 0;
}
p = ((guint8*) m) + index;
l = m->length + sizeof(message_t);
if ((r = write(sock, p, l - index)) < 0) {
g_message("write() failed, exiting");
gtk_main_quit();
return FALSE;
}
index += r;
if (index >= l) {
g_free(m);
m = NULL;
index = 0;
}
return m || send_message_queue;
}
static gboolean callback(GIOChannel *source, GIOCondition condition, gpointer data) {
if (condition & G_IO_HUP) {
gtk_main_quit();
return FALSE;
}
if (condition & G_IO_IN)
return recv_work();
if (condition & G_IO_OUT)
return send_work();
g_error("Huch?");
return FALSE;
}
static int enqueue_message(message_t *m) {
send_message_queue = g_slist_append(send_message_queue, m);
if (!send_message_queue->next)
g_io_add_watch(channel, G_IO_OUT, callback, NULL);
return 0;
}
static message_t* new_message(message_code_t code, guint8* p, guint s) {
message_t* m;
if (!p)
s = 0;
m = g_malloc(sizeof(message_t) + s);
m->code = code;
m->pid = getpid();
m->length = s;
if (p)
memcpy(m+1, p, s);
return m;
}
static int unix_socket(gchar *p) {
struct sockaddr_un addr;
int sock;
if ((sock = socket(PF_LOCAL, SOCK_STREAM, 0)) < 0) {
perror("socket(PF_LOCAL, SOCK_STREAM, 0)");
return -1;
}
addr.sun_family = AF_LOCAL;
strncpy(addr.sun_path, p, sizeof(addr.sun_path));
addr.sun_path[sizeof(addr.sun_path)-1] = 0;
if (connect(sock, (struct sockaddr *) &addr, SUN_LEN(&addr)) < 0) {
perror("connect()");
return -1;
}
return sock;
}
int daemon_init() {
if ((sock = unix_socket(SOCKET_PATH)) < 0)
return -1;
channel = g_io_channel_unix_new(sock);
g_io_add_watch(channel, G_IO_IN|G_IO_HUP, callback, NULL);
return 0;
}
void daemon_done() {
if (sock >= 0)
close(sock);
if (channel)
g_io_channel_unref(channel);
}
void daemon_verdict(unsigned long id, guint r) {
static guint8 buf[sizeof(unsigned long) + sizeof(guint32)];
*((unsigned long*) &buf[0]) = id;
*((guint32*) &buf[sizeof(unsigned long)]) = r;
enqueue_message(new_message(MSG_VERDICT, buf, sizeof(buf)));
}
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