WebSVN – HelenOS-historic – Diff – //uspace/trunk/ns/ns.c



 
#define NAME    "NS"
 
#define NS_HASH_TABLE_CHAINS    20
 
extern int __DONT_OPEN_STDIO__=1;
 
static int register_service(ipcarg_t service, ipcarg_t phone, ipc_call_t *call);
static int connect_to_service(ipcarg_t service, ipc_call_t *call, ipc_callid_t callid);
 
/* Static functions implementing NS hash table operations. */
static hash_index_t ns_hash(unsigned long *key);

    ipc_callid_t callid;
    char *as_area;
   
    ipcarg_t retval, arg1, arg2;
 
//  printf("%s: Naming service started.\n", NAME);
   
    if (!hash_table_create(&ns_hash_table, NS_HASH_TABLE_CHAINS, 3, &ns_hash_table_ops)) {
//      printf("%s: cannot create hash table\n", NAME);
        return ENOMEM;
    }
       
    while (1) {
        callid = ipc_wait_for_call(&call, 0);
//      printf("NS: Call in_phone_hash=%lX...", call.in_phone_hash);
        switch (IPC_GET_METHOD(call)) {
        case IPC_M_AS_AREA_SEND:
            as_area = (char *)IPC_GET_ARG2(call);
//          printf("Received as_area: %P, size:%d\n", as_area, IPC_GET_ARG3(call));
            retval = ipc_answer_fast(callid, 0,(sysarg_t)(1024*1024), 0);
            if (!retval) {
//              printf("Reading shared memory...");
//              printf("Text: %s", as_area);
            } else
//              printf("Failed answer: %d\n", retval);
            continue;
            break;
        case IPC_M_INTERRUPT:
//          printf("GOT INTERRUPT: %c\n", IPC_GET_ARG2(call));
            break;
        case IPC_M_PHONE_HUNGUP:
//          printf("Phone hung up.\n");
            retval = 0;
            break;
        case IPC_M_CONNECT_TO_ME:
            /*
             * Server requests service registration.

             * Client requests to be connected to a service.
             */
            retval = connect_to_service(IPC_GET_ARG1(call), &call, callid);
            break;
        case NS_HANGUP:
//          printf("Closing connection.\n");
            retval = EHANGUP;
            break;
        case NS_PING:
//          printf("Ping...%P %P\n", IPC_GET_ARG1(call),
//                 IPC_GET_ARG2(call));
            retval = 0;
            arg1 = 0xdead;
            arg2 = 0xbeef;
            break;
        case NS_PING_SVC:
//          printf("NS:Pinging service %d\n", ping_phone);
            ipc_call_sync(ping_phone, NS_PING, 0xbeef, 0);
//          printf("NS:Got pong\n");
            break;
        default:
//          printf("Unknown method: %zd\n", IPC_GET_METHOD(call));
            retval = ENOENT;
            break;
        }
        if (! (callid & IPC_CALLID_NOTIFICATION)) {
//          printf("Answering.\n");

int register_service(ipcarg_t service, ipcarg_t phone, ipc_call_t *call)
{
    unsigned long keys[3] = { service, call->in_phone_hash, 0 };
    hashed_service_t *hs;
           
//  printf("Registering service %d on phone %d...", service, phone);
 
    if (hash_table_find(&ns_hash_table, keys)) {
//      printf("Service %d already registered.\n", service);
        return EEXISTS;
    }
           
    hs = (hashed_service_t *) malloc(sizeof(hashed_service_t));
    if (!hs) {
//      printf("Failed to register service %d.\n", service);
        return ENOMEM;
    }
           
    link_initialize(&hs->link);
    hs->service = service;

    if (!hlp) {
//      printf("Service %d not registered.\n", service);
        return ENOENT;
    }
    hs = hash_table_get_instance(hlp, hashed_service_t, link);
//  printf("Connecting in_phone_hash=%lX to service at phone %d...", call->in_phone_hash, hs->phone);
    return ipc_forward_fast(callid, hs->phone, 0, 0);
}
 
/** Compute hash index into NS hash table.
 *

Rev 1360	Rev 1363
Line 43...	Line 43...
43		43
44	#define NAME "NS"	44	#define NAME "NS"
45		45
46	#define NS_HASH_TABLE_CHAINS 20	46	#define NS_HASH_TABLE_CHAINS 20
47		47
-		48	extern int __DONT_OPEN_STDIO__=1;
-		49
48	static int register_service(ipcarg_t service, ipcarg_t phone, ipc_call_t *call);	50	static int register_service(ipcarg_t service, ipcarg_t phone, ipc_call_t *call);
49	static int connect_to_service(ipcarg_t service, ipc_call_t *call, ipc_callid_t callid);	51	static int connect_to_service(ipcarg_t service, ipc_call_t *call, ipc_callid_t callid);
50		52
51	/* Static functions implementing NS hash table operations. */	53	/* Static functions implementing NS hash table operations. */
52	static hash_index_t ns_hash(unsigned long *key);	54	static hash_index_t ns_hash(unsigned long *key);
Line 79...	Line 81...
79	ipc_callid_t callid;	81	ipc_callid_t callid;
80	char *as_area;	82	char *as_area;
81		83
82	ipcarg_t retval, arg1, arg2;	84	ipcarg_t retval, arg1, arg2;
83		85
84	printf("%s: Naming service started.\n", NAME);	86	// printf("%s: Naming service started.\n", NAME);
85		87
86	if (!hash_table_create(&ns_hash_table, NS_HASH_TABLE_CHAINS, 3, &ns_hash_table_ops)) {	88	if (!hash_table_create(&ns_hash_table, NS_HASH_TABLE_CHAINS, 3, &ns_hash_table_ops)) {
87	printf("%s: cannot create hash table\n", NAME);	89	// printf("%s: cannot create hash table\n", NAME);
88	return ENOMEM;	90	return ENOMEM;
89	}	91	}
90		92
91	while (1) {	93	while (1) {
92	callid = ipc_wait_for_call(&call, 0);	94	callid = ipc_wait_for_call(&call, 0);
93	// printf("NS: Call in_phone_hash=%lX...", call.in_phone_hash);	95	// printf("NS: Call in_phone_hash=%lX...", call.in_phone_hash);
94	switch (IPC_GET_METHOD(call)) {	96	switch (IPC_GET_METHOD(call)) {
95	case IPC_M_AS_AREA_SEND:	97	case IPC_M_AS_AREA_SEND:
96	as_area = (char *)IPC_GET_ARG2(call);	98	as_area = (char *)IPC_GET_ARG2(call);
97	printf("Received as_area: %P, size:%d\n", as_area, IPC_GET_ARG3(call));	99	// printf("Received as_area: %P, size:%d\n", as_area, IPC_GET_ARG3(call));
98	retval = ipc_answer_fast(callid, 0,(sysarg_t)(1024*1024), 0);	100	retval = ipc_answer_fast(callid, 0,(sysarg_t)(1024*1024), 0);
99	if (!retval) {	101	if (!retval) {
100	printf("Reading shared memory...");	102	// printf("Reading shared memory...");
101	printf("Text: %s", as_area);	103	// printf("Text: %s", as_area);
102	} else	104	} else
103	printf("Failed answer: %d\n", retval);	105	// printf("Failed answer: %d\n", retval);
104	continue;	106	continue;
105	break;	107	break;
106	case IPC_M_INTERRUPT:	108	case IPC_M_INTERRUPT:
107	printf("GOT INTERRUPT: %c\n", IPC_GET_ARG2(call));	109	// printf("GOT INTERRUPT: %c\n", IPC_GET_ARG2(call));
108	break;	110	break;
109	case IPC_M_PHONE_HUNGUP:	111	case IPC_M_PHONE_HUNGUP:
110	printf("Phone hung up.\n");	112	// printf("Phone hung up.\n");
111	retval = 0;	113	retval = 0;
112	break;	114	break;
113	case IPC_M_CONNECT_TO_ME:	115	case IPC_M_CONNECT_TO_ME:
114	/*	116	/*
115	* Server requests service registration.	117	* Server requests service registration.
Line 122...	Line 124...
122	* Client requests to be connected to a service.	124	* Client requests to be connected to a service.
123	*/	125	*/
124	retval = connect_to_service(IPC_GET_ARG1(call), &call, callid);	126	retval = connect_to_service(IPC_GET_ARG1(call), &call, callid);
125	break;	127	break;
126	case NS_HANGUP:	128	case NS_HANGUP:
127	printf("Closing connection.\n");	129	// printf("Closing connection.\n");
128	retval = EHANGUP;	130	retval = EHANGUP;
129	break;	131	break;
130	case NS_PING:	132	case NS_PING:
131	printf("Ping...%P %P\n", IPC_GET_ARG1(call),	133	// printf("Ping...%P %P\n", IPC_GET_ARG1(call),
132	IPC_GET_ARG2(call));	134	// IPC_GET_ARG2(call));
133	retval = 0;	135	retval = 0;
134	arg1 = 0xdead;	136	arg1 = 0xdead;
135	arg2 = 0xbeef;	137	arg2 = 0xbeef;
136	break;	138	break;
137	case NS_PING_SVC:	139	case NS_PING_SVC:
138	printf("NS:Pinging service %d\n", ping_phone);	140	// printf("NS:Pinging service %d\n", ping_phone);
139	ipc_call_sync(ping_phone, NS_PING, 0xbeef, 0);	141	ipc_call_sync(ping_phone, NS_PING, 0xbeef, 0);
140	printf("NS:Got pong\n");	142	// printf("NS:Got pong\n");
141	break;	143	break;
142	default:	144	default:
143	printf("Unknown method: %zd\n", IPC_GET_METHOD(call));	145	// printf("Unknown method: %zd\n", IPC_GET_METHOD(call));
144	retval = ENOENT;	146	retval = ENOENT;
145	break;	147	break;
146	}	148	}
147	if (! (callid & IPC_CALLID_NOTIFICATION)) {	149	if (! (callid & IPC_CALLID_NOTIFICATION)) {
148	// printf("Answering.\n");	150	// printf("Answering.\n");
Line 162...	Line 164...
162	int register_service(ipcarg_t service, ipcarg_t phone, ipc_call_t *call)	164	int register_service(ipcarg_t service, ipcarg_t phone, ipc_call_t *call)
163	{	165	{
164	unsigned long keys[3] = { service, call->in_phone_hash, 0 };	166	unsigned long keys[3] = { service, call->in_phone_hash, 0 };
165	hashed_service_t *hs;	167	hashed_service_t *hs;
166		168
167	printf("Registering service %d on phone %d...", service, phone);	169	// printf("Registering service %d on phone %d...", service, phone);
168		170
169	if (hash_table_find(&ns_hash_table, keys)) {	171	if (hash_table_find(&ns_hash_table, keys)) {
170	printf("Service %d already registered.\n", service);	172	// printf("Service %d already registered.\n", service);
171	return EEXISTS;	173	return EEXISTS;
172	}	174	}
173		175
174	hs = (hashed_service_t *) malloc(sizeof(hashed_service_t));	176	hs = (hashed_service_t *) malloc(sizeof(hashed_service_t));
175	if (!hs) {	177	if (!hs) {
176	printf("Failed to register service %d.\n", service);	178	// printf("Failed to register service %d.\n", service);
177	return ENOMEM;	179	return ENOMEM;
178	}	180	}
179		181
180	link_initialize(&hs->link);	182	link_initialize(&hs->link);
181	hs->service = service;	183	hs->service = service;
Line 204...	Line 206...
204	if (!hlp) {	206	if (!hlp) {
205	// printf("Service %d not registered.\n", service);	207	// printf("Service %d not registered.\n", service);
206	return ENOENT;	208	return ENOENT;
207	}	209	}
208	hs = hash_table_get_instance(hlp, hashed_service_t, link);	210	hs = hash_table_get_instance(hlp, hashed_service_t, link);
209	printf("Connecting in_phone_hash=%lX to service at phone %d...", call->in_phone_hash, hs->phone);	211	// printf("Connecting in_phone_hash=%lX to service at phone %d...", call->in_phone_hash, hs->phone);
210	return ipc_forward_fast(callid, hs->phone, 0, 0);	212	return ipc_forward_fast(callid, hs->phone, 0, 0);
211	}	213	}
212		214
213	/** Compute hash index into NS hash table.	215	/** Compute hash index into NS hash table.
214	*	216	*

Subversion Repositories HelenOS-historic

(root)//uspace/trunk/ns/ns.c – Rev 1360 → 1363