#include <acess/sys.h>
#include <net.h>
#include <axwin2/messages.h>
-//#include <sys/select.h>
+#include <string.h>
#define AXWIN_PORT 4101
#define STATICBUF_SIZE 64
// === TYPES ===
-typedef void tMessages_Handle_Callback(void*, size_t, void*);
// === PROTOTYPES ===
-void Messages_PollIPC();
-void Messages_RespondIPC(void *Ident, size_t Length, void *Data);
-void Messages_Handle(void *Ident, int MsgLen, tAxWin_Message *Msg, tMessages_Handle_Callback *Respond);
+void IPC_Init(void);
+void IPC_FillSelect(int *nfds, fd_set *set);
+void IPC_HandleSelect(fd_set *set);
+void IPC_Handle(tIPC_Type *IPCType, void *Ident, size_t MsgLen, tAxWin_Message *Msg);
+void IPC_ReturnValue(tIPC_Type *IPCType, void *Ident, int MessageID, uint32_t Value);
+ int IPC_Type_Datagram_GetSize(void *Ident);
+ int IPC_Type_Datagram_Compare(void *Ident1, void *Ident2);
+void IPC_Type_Datagram_Send(void *Ident, size_t Length, void *Data);
+ int IPC_Type_Sys_GetSize(void *Ident);
+ int IPC_Type_Sys_Compare(void *Ident1, void *Ident2);
+void IPC_Type_Sys_Send(void *Ident, size_t Length, void *Data);
// === GLOBALS ===
int giNetworkFileHandle = -1;
int giMessagesFileHandle = -1;
+tIPC_Type gIPC_Type_Datagram = {
+ IPC_Type_Datagram_GetSize,
+ IPC_Type_Datagram_Compare,
+ IPC_Type_Datagram_Send
+};
+tIPC_Type gIPC_Type_SysMessage = {
+ IPC_Type_Sys_GetSize,
+ IPC_Type_Sys_Compare,
+ IPC_Type_Sys_Send
+};
// === CODE ===
void IPC_Init(void)
int tmp;
// TODO: Check this
giNetworkFileHandle = open("/Devices/ip/loop/udp", OPENFLAG_READ);
- tmp = AXWIN_PORT; ioctl(giIPCFileHandle, 4, &tmp); // TODO: Don't hard-code IOCtl number
-
- // TODO: Open a handle to something like /Devices/proc/cur/messages to watch for messages
-// giMessagesFileHandle = open("/Devices/"
+ tmp = AXWIN_PORT; ioctl(giNetworkFileHandle, 4, &tmp); // TODO: Don't hard-code IOCtl number
}
void IPC_FillSelect(int *nfds, fd_set *set)
void IPC_HandleSelect(fd_set *set)
{
- if( FD_ISSET(giIPCFileHandle, set) )
+ if( FD_ISSET(giNetworkFileHandle, set) )
{
char staticBuf[STATICBUF_SIZE];
int readlen, identlen;
char *msg;
- readlen = read(giIPCFileHandle, sizeof(staticBuf), staticBuf);
+ readlen = read(giNetworkFileHandle, staticBuf, sizeof(staticBuf));
- // Assume that all connections are from localhost
identlen = 4 + Net_GetAddressSize( ((uint16_t*)staticBuf)[1] );
msg = staticBuf + identlen;
- Messages_Handle(staticBuf, readlen - identlen, (void*)msg, Messages_RespondIPC);
+ IPC_Handle(&gIPC_Type_Datagram, staticBuf, readlen - identlen, (void*)msg);
+ _SysDebug("IPC_HandleSelect: UDP handled");
+ }
+
+ while(SysGetMessage(NULL, NULL))
+ {
+ pid_t tid;
+ int len = SysGetMessage(&tid, NULL);
+ char data[len];
+ SysGetMessage(NULL, data);
+
+ IPC_Handle(&gIPC_Type_SysMessage, &tid, len, (void*)data);
+ _SysDebug("IPC_HandleSelect: Message handled");
}
}
-#if 0
-void Messages_PollIPC()
+void IPC_Handle(tIPC_Type *IPCType, void *Ident, size_t MsgLen, tAxWin_Message *Msg)
{
- int len;
- pid_t tid = 0;
- char staticBuf[STATICBUF_SIZE];
- tAxWin_Message *msg;
+ tApplication *app;
+ tElement *ele;
- // Wait for a message
- while( (len = SysGetMessage(&tid, NULL)) == 0 )
- sleep();
+ _SysDebug("IPC_Handle: (IPCType=%p, Ident=%p, MsgLen=%i, Msg=%p)",
+ IPCType, Ident, MsgLen, Msg);
- // Allocate the space for it
- if( len <= STATICBUF_SIZE )
- msg = (void*)staticBuf;
- else {
- msg = malloc( len );
- if(!msg) {
- fprintf(
- stderr,
- "ERROR - Unable to allocate message buffer, ignoring message from %i\n",
- tid);
- SysGetMessage(NULL, GETMSG_IGNORE);
- return ;
- }
- }
+ if( MsgLen < sizeof(tAxWin_Message) )
+ return ;
+ if( MsgLen < sizeof(tAxWin_Message) + Msg->Size )
+ return ;
- // Get message data
- SysGetMessage(NULL, msg);
-
- Messages_Handle(msg, Messages_RespondIPC, tid);
-}
-#endif
+ app = AxWin_GetClient(IPCType, Ident);
-void Messages_RespondIPC(void *Ident, size_t Length, void *Data)
-{
- SysSendMessage( *(tid_t*)Ident, Length, Data );
-}
-
-void Messages_Handle(void *Ident, int MsgLen, tAxWin_Message *Msg, tMessages_Handle_Callback *Respond)
-{
- switch(Msg->ID)
+ switch((enum eAxWin_Messages) Msg->ID)
{
- #if 0
+ // --- Ping message (reset timeout and get server version)
case MSG_SREQ_PING:
+ _SysDebug(" IPC_Handle: MSG_SREQ_PING");
+ if( MsgLen < sizeof(tAxWin_Message) + 4 ) return;
Msg->ID = MSG_SRSP_VERSION;
- Msg->Size = 2;
+ Msg->Size = 4;
Msg->Data[0] = 0;
Msg->Data[1] = 1;
*(uint16_t*)&Msg->Data[2] = -1;
- Respond(Ident, sizeof(Msg->ID), Msg);
+ IPCType->SendMessage(Ident, sizeof(Msg->ID), Msg);
break;
- #endif
+
+
+ // --- Register an application
+ case MSG_SREQ_REGISTER:
+ _SysDebug(" IPC_Handle: MSG_SREQ_REGISTER");
+ if( Msg->Data[Msg->Size-1] != '\0' ) {
+ // Invalid message
+ _SysDebug("IPC_Handle: RETURN - Not NULL terminated");
+ return ;
+ }
+
+ if( app != NULL ) {
+ _SysDebug("Notice: Duplicate registration (%s)\n", Msg->Data);
+ return ;
+ }
+
+ // TODO: Should this function be implemented here?
+ AxWin_RegisterClient(IPCType, Ident, Msg->Data);
+ break;
+
+ // --- Create a window
+ case MSG_SREQ_ADDWIN:
+ _SysDebug(" IPC_Handle: MSG_SREQ_ADDWIN");
+ if( Msg->Data[Msg->Size-1] != '\0' ) {
+ // Invalid message
+ return ;
+ }
+
+ ele = AxWin_CreateAppWindow(app, Msg->Data);
+ IPC_ReturnValue(IPCType, Ident, MSG_SREQ_ADDWIN, ele->ApplicationID);
+ break;
+
+ // --- Set a window's icon
+ case MSG_SREQ_SETICON:
+ _SysDebug(" IPC_Handle: MSG_SREQ_SETICON");
+ // TODO: Find a good way of implementing this
+ break;
+
+ // --- Create an element
+ case MSG_SREQ_INSERT: {
+ _SysDebug(" IPC_Handle: MSG_SREQ_INSERT");
+ struct sAxWin_SReq_NewElement *info = (void *)Msg->Data;
+
+ if( Msg->Size != sizeof(*info) ) return;
+
+ if( !app || info->Parent > app->MaxElementIndex ) return ;
+
+ ele = AxWin_CreateElement( app->EleIndex[info->Parent], info->Type, info->Flags, NULL );
+ IPC_ReturnValue(IPCType, Ident, MSG_SREQ_ADDWIN, ele->ApplicationID);
+ break; }
+
+ // --- Unknown message
default:
- fprintf(stderr, "WARNING: Unknown message %i (%p)\n", Msg->ID, Respond);
- _SysDebug("WARNING: Unknown message %i (%p)\n", Msg->ID, Respond);
+ fprintf(stderr, "WARNING: Unknown message %i (%p)\n", Msg->ID, IPCType);
+ _SysDebug("WARNING: Unknown message %i (%p)\n", Msg->ID, IPCType);
break;
}
}
+void IPC_ReturnValue(tIPC_Type *IPCType, void *Ident, int MessageID, uint32_t Value)
+{
+ char data[sizeof(tAxWin_Message) + sizeof(tAxWin_RetMsg)];
+ tAxWin_Message *msg = (void *)data;
+ tAxWin_RetMsg *ret_msg = (void *)msg->Data;
+
+ msg->Source = 0; // 0 = Server
+ msg->ID = MSG_SRSP_RETURN;
+ msg->Size = sizeof(tAxWin_RetMsg);
+ ret_msg->ReqID = MessageID;
+ ret_msg->Rsvd = 0;
+ ret_msg->Value = Value;
+
+ IPCType->SendMessage(Ident, sizeof(data), data);
+}
+
+int IPC_Type_Datagram_GetSize(void *Ident)
+{
+ return 4 + Net_GetAddressSize( ((uint16_t*)Ident)[1] );
+}
+
+int IPC_Type_Datagram_Compare(void *Ident1, void *Ident2)
+{
+ // Pass the buck :)
+ // - No need to worry about mis-matching sizes, as the size is computed
+ // from the 3rd/4th bytes, hence it will differ before the size is hit.
+ return memcmp(Ident1, Ident2, IPC_Type_Datagram_GetSize(Ident1));
+}
+
+void IPC_Type_Datagram_Send(void *Ident, size_t Length, void *Data)
+{
+ int identlen = IPC_Type_Datagram_GetSize(Ident);
+ char tmpbuf[ identlen + Length ];
+ memcpy(tmpbuf, Ident, identlen); // Header
+ memcpy(tmpbuf + identlen, Data, Length); // Data
+ // TODO: Handle fragmented packets
+ write(giNetworkFileHandle, tmpbuf, sizeof(tmpbuf));
+}
+
+int IPC_Type_Sys_GetSize(void *Ident)
+{
+ return sizeof(pid_t);
+}
+
+int IPC_Type_Sys_Compare(void *Ident1, void *Ident2)
+{
+ return *(int*)Ident1 - *(int*)Ident2;
+}
+
+void IPC_Type_Sys_Send(void *Ident, size_t Length, void *Data)
+{
+ SysSendMessage( *(tid_t*)Ident, Length, Data );
+}
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