mirror of
https://github.com/jeremysrand/Listener.git
synced 2024-12-31 05:31:02 +00:00
Add a bunch of network code. The NDA now waits for a connection and can receive message headers. Also, it will send key events for any text that it has received. Just need to also add code to receive the text from the network.
This commit is contained in:
Jeremy Rand
parent
11bb312be8
commit
2368d6db6c
406
Listener/main.c
406
Listener/main.c
@ -21,52 +21,205 @@
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#include <MiscTool.h>
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#include <Memory.h>
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#include <Loader.h>
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#include <locator.h>
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#include <tcpip.h>
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#include <stdint.h>
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#include <stdlib.h>
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#include <string.h>
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#include "main.h"
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static BOOLEAN ndaActive = FALSE;
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static GrafPortPtr winPtr = NULL;
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// Defines
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#define LISTEN_PORT 19026
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#define LISTEN_STATE_MSG 1
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#define LISTEN_TEXT_MSG 2
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#define WINDOW_CHAR_WIDTH 50
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// Typedefs
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typedef enum tListenState {
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LISTEN_STATE_START = 0,
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LISTEN_STATE_NETWORK_UNCONNECTED,
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LISTEN_STATE_NETWORK_CONNECTED,
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LISTEN_STATE_AWAITING_CONNECTION,
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LISTEN_STATE_AWAITING_MSG_HEADER,
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LISTEN_STATE_ERROR,
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NUM_LISTEN_STATES
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} tListenState;
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typedef struct tMessageHeader {
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uint16_t messageType;
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uint16_t messageArg;
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} tMessageHeader;
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typedef struct tTextList tTextList;
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typedef struct tTextListHeader {
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struct tTextList * next;
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uint16_t size;
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uint16_t position;
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} tTextListHeader;
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typedef struct tTextList {
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tTextListHeader header;
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char text[1];
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} tTextList;
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typedef struct tGlobals {
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BOOLEAN ndaActive;
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BOOLEAN tcpipStarted;
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BOOLEAN networkConnected;
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BOOLEAN hasListenIpid;
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BOOLEAN hasConnIpid;
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GrafPortPtr winPtr;
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tListenState state;
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Word listenIpid;
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Word connIpid;
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Word position;
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tTextList * textListHead;
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tTextList * textListTail;
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tMessageHeader messageHeader;
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tTextList * textTransfer;
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char line1[WINDOW_CHAR_WIDTH];
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char line2[WINDOW_CHAR_WIDTH];
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char line3[WINDOW_CHAR_WIDTH];
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} tGlobals;
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typedef void (*tStateHandler)(void);
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// Forward declarations
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void handleStartState(void);
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void handleNetworkUnconnectedState(void);
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void handleNetworkConnectedState(void);
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void handleAwaitingConnectionState(void);
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void handleAwaitingMsgHeaderState(void);
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void handleErrorState(void);
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// Globals
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static tGlobals * globals = NULL;
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static unsigned int userId;
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static tStateHandler stateHandlers[NUM_LISTEN_STATES] = {
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handleStartState,
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handleNetworkUnconnectedState,
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handleNetworkConnectedState,
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handleAwaitingConnectionState,
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handleAwaitingMsgHeaderState,
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handleErrorState,
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};
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static char * stateMessages[NUM_LISTEN_STATES] = {
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"Starting network tools",
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"Connecting to network",
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"Creating listen socket",
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"Waiting for connection",
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"Connected to device",
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""
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};
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static char line1[50];
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static char line2[50];
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static char line3[50];
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// Implementation
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void NDAClose(void)
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{
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if (ndaActive) {
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CloseWindow(winPtr);
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winPtr = NULL;
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ndaActive = FALSE;
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if ((globals != NULL) &&
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(globals->ndaActive)) {
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CloseWindow(globals->winPtr);
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globals->winPtr = NULL;
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globals->ndaActive = FALSE;
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}
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ResourceShutDown();
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}
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void freeGlobals(void)
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{
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tTextList * textList = globals->textListHead;
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if (globals->textTransfer != NULL)
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free(globals->textTransfer);
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while (textList != NULL) {
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tTextList * prev = textList;
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textList = textList->header.next;
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free(prev);
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}
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free(globals);
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globals = NULL;
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}
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void teardownNetwork(void)
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{
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if (globals->hasConnIpid) {
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TCPIPAbortTCP(globals->connIpid);
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TCPIPLogout(globals->connIpid);
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}
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globals->hasConnIpid = FALSE;
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if (globals->hasListenIpid) {
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TCPIPCloseTCP(globals->listenIpid);
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TCPIPLogout(globals->listenIpid);
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}
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globals->hasListenIpid = FALSE;
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if (globals->networkConnected)
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TCPIPDisconnect(TRUE, NULL);
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globals->networkConnected = FALSE;
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if (globals->tcpipStarted)
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TCPIPShutDown();
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globals->tcpipStarted = FALSE;
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}
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void NDAInit(int code)
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{
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/* When code is 1, this is tool startup, otherwise tool
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* shutdown.
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*/
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strcpy(line1, "Hello, world!");
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strcpy(line2, "Hello, world!");
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strcpy(line3, "Hello, world!");
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if (code) {
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ndaActive = FALSE;
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userId = MMStartUp();
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globals = malloc(sizeof(*globals));
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memset(globals, 0, sizeof(*globals));
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} else {
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if (ndaActive)
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if ((globals != NULL) &&
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(globals->ndaActive)) {
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NDAClose();
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teardownNetwork();
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freeGlobals();
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}
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}
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}
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void InvalidateWindow(void)
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{
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Rect frame;
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SetPort(globals->winPtr);
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GetPortRect(&frame);
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frame.v2 -= frame.v1;
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frame.h2 -= frame.h1;
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frame.h1 = 0;
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frame.v1 = 0;
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InvalRect(&frame);
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}
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#pragma databank 1
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void DrawContents(void)
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{
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@ -80,11 +233,11 @@ void DrawContents(void)
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PenNormal();
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MoveTo(7,10);
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DrawCString(line1);
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DrawCString(globals->line1);
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MoveTo(7,20);
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DrawCString(line2);
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DrawCString(globals->line2);
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MoveTo(7,30);
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DrawCString(line3);
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DrawCString(globals->line3);
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}
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#pragma databank 0
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@ -97,7 +250,7 @@ GrafPortPtr NDAOpen(void)
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SysPrefsRecGS prefsDCB;
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unsigned int oldPrefs;
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if (ndaActive)
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if (globals->ndaActive)
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return NULL;
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levelDCB.pCount = 2;
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@ -114,13 +267,13 @@ GrafPortPtr NDAOpen(void)
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oldResourceApp = OpenResourceFileByID(readEnable, userId);
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winPtr = NewWindow2("\p Listener ", 0, DrawContents, NULL, 0x02, windowRes, rWindParam1);
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globals->winPtr = NewWindow2("\p Listener ", 0, DrawContents, NULL, 0x02, windowRes, rWindParam1);
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SetSysWindow(winPtr);
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ShowWindow(winPtr);
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SelectWindow(winPtr);
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SetSysWindow(globals->winPtr);
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ShowWindow(globals->winPtr);
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SelectWindow(globals->winPtr);
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ndaActive = TRUE;
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globals->ndaActive = TRUE;
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prefsDCB.preferences = oldPrefs;
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SetSysPrefsGS(&prefsDCB);
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@ -130,25 +283,181 @@ GrafPortPtr NDAOpen(void)
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SetCurResourceApp(oldResourceApp);
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return winPtr;
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return globals->winPtr;
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}
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void enterErrorState(char * errorString, Word errorCode)
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{
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strcpy(globals->line1, errorString);
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sprintf(globals->line2, " Error code = $%04x", errorCode);
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InvalidateWindow();
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teardownNetwork();
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globals->state = LISTEN_STATE_ERROR;
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}
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void newState(tListenState state)
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{
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strcpy(globals->line1, stateMessages[state]);
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InvalidateWindow();
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globals->state = state;
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}
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void handleStartState(void)
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{
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LoadOneTool(54, 0x200); // Load Marinetti
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if (toolerror()) {
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enterErrorState("Unable to load Marinetti", toolerror());
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return;
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}
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if (!TCPIPStatus()) {
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TCPIPStartUp();
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if (toolerror()) {
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enterErrorState("Unable to start Marinetti", toolerror());
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return;
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}
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globals->tcpipStarted = TRUE;
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}
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if (TCPIPGetConnectStatus()) {
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newState(LISTEN_STATE_NETWORK_CONNECTED);
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} else {
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newState(LISTEN_STATE_NETWORK_UNCONNECTED);
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}
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}
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void handleNetworkUnconnectedState(void)
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{
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TCPIPConnect(NULL);
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if ((!toolerror()) &&
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(TCPIPGetConnectStatus())) {
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globals->networkConnected = TRUE;
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newState(LISTEN_STATE_NETWORK_CONNECTED);
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} else {
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enterErrorState("Unable to connect to network", toolerror());
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}
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}
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void handleNetworkConnectedState(void)
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{
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Word error;
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globals->listenIpid = TCPIPLogin(userId, 0, LISTEN_PORT, 0, 64);
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if (toolerror()) {
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enterErrorState("Unable to create socket", toolerror());
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return;
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}
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error = TCPIPListenTCP(globals->listenIpid);
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if (error != terrOK) {
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TCPIPLogout(globals->listenIpid);
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enterErrorState("Unable to listen on socket", error);
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return;
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}
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globals->hasListenIpid = TRUE;
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newState(LISTEN_STATE_AWAITING_CONNECTION);
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}
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void handleAwaitingConnectionState(void)
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{
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globals->connIpid = TCPIPAcceptTCP(globals->listenIpid, 0);
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switch (toolerror()) {
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case terrOK:
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globals->hasConnIpid = TRUE;
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newState(LISTEN_STATE_AWAITING_MSG_HEADER);
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globals->position = 0;
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break;
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case terrNOINCOMING:
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break;
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default:
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enterErrorState("Unable to accept connection", toolerror());
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break;
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}
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}
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void handleAwaitingMsgHeaderState(void)
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{
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rrBuff readResponseBuf;
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Word error = TCPIPReadTCP(globals->connIpid, 0,
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((uint32_t)(&(globals->messageHeader))) + globals->position,
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sizeof(globals->messageHeader) - globals->position,
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&readResponseBuf);
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if (error != tcperrOK) {
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enterErrorState("Unable to read from connection", error);
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return;
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}
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globals->position += readResponseBuf.rrBuffCount;
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if (globals->position < sizeof(globals->messageHeader))
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return;
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switch (globals->messageHeader.messageType) {
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case LISTEN_STATE_MSG:
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if (globals->messageHeader.messageArg)
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strcpy(globals->line2, " Listening...");
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else
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strcpy(globals->line2, "");
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InvalidateWindow();
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break;
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case LISTEN_TEXT_MSG:
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// TODO - Transition to a new state when getting text
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break;
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default:
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enterErrorState("Unexpected message type", globals->messageHeader.messageType);
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}
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}
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void handleErrorState(void)
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{
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// Do nothing. Once we have entered the error state, then nothing more to do.
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}
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void runStateMachine(void)
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{
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TCPIPPoll();
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stateHandlers[globals->state]();
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}
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void sendKey(void)
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{
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tTextList * textList = globals->textListHead;
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PostEvent(keyDownEvt, 0x00C00000 | textList->text[textList->header.position]);
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textList->header.position++;
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if (textList->header.position < textList->header.size)
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return;
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if (textList == globals->textListTail)
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globals->textListTail = NULL;
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globals->textListHead = textList->header.next;
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free(textList);
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}
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void HandleRun(void)
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{
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static BOOLEAN keySent = FALSE;
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if (winPtr == NULL)
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if (globals == NULL)
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return;
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if (winPtr == FrontWindow())
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return;
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if (keySent)
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return;
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PostEvent(keyDownEvt, 0x00C0004A);
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keySent = TRUE;
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runStateMachine();
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if (globals->textListHead != NULL)
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sendKey();
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}
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@ -157,27 +466,16 @@ void HandleControl(EventRecord *event)
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}
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void InvalidateWindow(void)
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{
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Rect frame;
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SetPort(winPtr);
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GetPortRect(&frame);
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frame.v2 -= frame.v1;
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frame.h2 -= frame.h1;
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frame.h1 = 0;
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frame.v1 = 0;
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InvalRect(&frame);
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}
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void HandleKey(EventRecord *event)
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{
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if (winPtr != NULL) {
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sprintf(line1, "what = $%X", event->what);
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sprintf(line2, "message = $%lX", event->message);
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sprintf(line3, "modifiers = $%X", event->modifiers);
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#if 0
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if (globals->winPtr != NULL) {
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sprintf(globals->line1, "what = $%X", event->what);
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sprintf(globals->line2, "message = $%lX", event->message);
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sprintf(globals->line3, "modifiers = $%X", event->modifiers);
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InvalidateWindow();
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}
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#endif
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}
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@ -208,9 +506,9 @@ BOOLEAN NDAAction(EventRecord *sysEvent, int code)
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eventCode = TaskMasterDA(0, &localEvent);
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switch(eventCode) {
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case updateEvt:
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BeginUpdate(winPtr);
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BeginUpdate(globals->winPtr);
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DrawContents();
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EndUpdate(winPtr);
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EndUpdate(globals->winPtr);
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break;
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case wInControl:
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