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/*
* ipc.c:
*
* Copyright (c) 2008 James McKenzie <james@fishsoup.dhs.org>,
* All rights reserved.
*
*/
static char rcsid[] = "$Id$";
/*
* $Log$
* Revision 1.1 2008/02/14 12:17:42 james
* *** empty log message ***
*
*/
#include "project.h"
IPC_Msg *
ipc_check_for_message_in_slide (Slide * s)
{
IPC_Msg *m;
if (SLIDE_BYTES (s) < sizeof (IPC_Msg_hdr))
return NULL;
m = (IPC_Msg *) SLIDE_RPTR (s);
if (SLIDE_BYTES (s) < m->hdr.size)
return NULL;
if (m->hdr.size < sizeof (IPC_Msg_hdr))
abort ();
return m;
}
void
ipc_consume_message_in_slide (Slide * s)
{
IPC_Msg *m = ipc_check_for_message_in_slide (s);
if (!m)
abort ();
slide_consume (s, m->hdr.size);
}
int
ipc_msg_send (Socket * s, IPC_Msg * m)
{
int len = m->hdr.size;
return (socket_write (s, m, len) == len) ? 0 : -1;
}
int
ipc_msg_send_debug (Socket * s, char *msg)
{
char buf[sizeof (IPC_Msg_hdr) + IPC_MAX_BUF];
IPC_Msg_debug *m;
int len;
m = (IPC_Msg_debug *) buf;
m->type = IPC_MSG_TYPE_DEBUG;
strncpy (m->msg, msg, IPC_MAX_BUF);
m->msg[IPC_MAX_BUF - 1] = 0;
m->size = sizeof (IPC_Msg_hdr) + strlen (m->msg) + 1;
return ipc_msg_send (s, (IPC_Msg *) m);
}
int
ipc_msg_send_history (Socket * s, History_ent * l)
{
IPC_Msg_history m;
int len;
m.type = IPC_MSG_TYPE_HISTORY;
m.history = *l;
m.size = sizeof (m);
return ipc_msg_send (s, (IPC_Msg *) & m);
}
int
ipc_msg_send_vt102 (Socket * s, VT102 * v)
{
IPC_Msg_VT102 m;
int len;
m.type = IPC_MSG_TYPE_VT102;
m.len = sizeof (VT102);
m.vt102 = *v;
m.size = sizeof (m);
return ipc_msg_send (s, (IPC_Msg *) & m);
}
int
ipc_msg_send_key (Socket * s, int key)
{
IPC_Msg_key m;
m.size = sizeof (m);
m.type = IPC_MSG_TYPE_KEY;
m.key = key;
return ipc_msg_send (s, (IPC_Msg *) & m);
}
int
ipc_msg_send_term (Socket * s, void *buf, int len)
{
char mbuf[IPC_MAX_BUF + sizeof (IPC_Msg_hdr)];
IPC_Msg_term *m = (IPC_Msg_term *) mbuf;
if (!len)
return 0;
m->size = len + sizeof (IPC_Msg_hdr);
m->type = IPC_MSG_TYPE_TERM;
m->len = len;
memcpy (m->term, buf, len);
return ipc_msg_send (s, (IPC_Msg *) & m);
}
int
ipc_msg_send_status (Socket * s, char *buf)
{
char mbuf[IPC_MAX_BUF + sizeof (IPC_Msg_hdr)];
IPC_Msg_status *m = (IPC_Msg_status *) mbuf;
int len;
if (!buf)
return 0;
len = strlen (buf) + 1;
m->size = len + sizeof (IPC_Msg_hdr);
m->type = IPC_MSG_TYPE_STATUS;
strncpy (m->status, buf, IPC_MAX_BUF - 1);
m->status[IPC_MAX_BUF - 1] = 0;
return ipc_msg_send (s, (IPC_Msg *) & m);
}
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