nmxp.c 8.26 KB
Newer Older
Matteo Quintiliani's avatar
Start    
Matteo Quintiliani committed
1
2
3
4
5
6
7
8
9
10
11
12
/*! \file
 *
 * \brief Nanometrics Protocol Libray
 *
 * Author:
 * 	Matteo Quintiliani
 * 	Istituto Nazionale di Geofisica e Vulcanologia - Italy
 *	quintiliani@ingv.it
 *
 */

#include "nmxp.h"
Matteo Quintiliani's avatar
Matteo Quintiliani committed
13
#include "nmxp_crc32.h"
Matteo Quintiliani's avatar
Start    
Matteo Quintiliani committed
14
15

#include <stdio.h>
16
#include <stdlib.h>
Matteo Quintiliani's avatar
Start    
Matteo Quintiliani committed
17
18
#include <string.h>

19
int nmxp_sendConnect(int isock) {
Matteo Quintiliani's avatar
Matteo Quintiliani committed
20
    return nmxp_sendMessage(isock, NMXP_MSG_CONNECT, NULL, 0);
Matteo Quintiliani's avatar
Start    
Matteo Quintiliani committed
21
22
}

Matteo Quintiliani's avatar
Matteo Quintiliani committed
23
24
int nmxp_sendTerminateSubscription(int isock, NMXP_SHUTDOWN_REASON reason, char *message) {
    return nmxp_sendMessage(isock, NMXP_MSG_TERMINATESUBSCRIPTION, message, ((message)? strlen(message)-1 : 0));
Matteo Quintiliani's avatar
Start    
Matteo Quintiliani committed
25
26
}

Matteo Quintiliani's avatar
Matteo Quintiliani committed
27
int nmxp_receiveChannelList(int isock, NMXP_CHAN_LIST **pchannelList) {
Matteo Quintiliani's avatar
Start    
Matteo Quintiliani committed
28
29
30
    int ret;
    int i;

Matteo Quintiliani's avatar
Matteo Quintiliani committed
31
    NMXP_MSG_SERVER type;
Matteo Quintiliani's avatar
Start    
Matteo Quintiliani committed
32
33
34
35
36
    void *buffer;
    uint32_t length;

    *pchannelList = NULL;

37
    ret = nmxp_receiveMessage(isock, &type, &buffer, &length);
Matteo Quintiliani's avatar
Start    
Matteo Quintiliani committed
38

Matteo Quintiliani's avatar
Matteo Quintiliani committed
39
40
    if(type != NMXP_MSG_CHANNELLIST) {
	nmxp_log(1, 0, "Type %d is not NMXP_MSG_CHANNELLIST!\n", type);
Matteo Quintiliani's avatar
Start    
Matteo Quintiliani committed
41
42
43
44
45
    } else {

	*pchannelList = buffer;
	(*pchannelList)->number = ntohl((*pchannelList)->number);

Matteo Quintiliani's avatar
Matteo Quintiliani committed
46
	nmxp_log(0, 1, "number of channels %d\n", (*pchannelList)->number);
Matteo Quintiliani's avatar
Start    
Matteo Quintiliani committed
47
48
49
50
51
	
	// TODO check

	for(i=0; i < (*pchannelList)->number; i++) {
	    (*pchannelList)->channel[i].key = ntohl((*pchannelList)->channel[i].key);
52
	    nmxp_log(0, 1, "%12d %s\n", (*pchannelList)->channel[i].key, (*pchannelList)->channel[i].name);
Matteo Quintiliani's avatar
Start    
Matteo Quintiliani committed
53
54
55
56
57
58
59
60
	}

    }

    return ret;
}


Matteo Quintiliani's avatar
Matteo Quintiliani committed
61
int nmxp_sendAddTimeSeriesChannel(int isock, NMXP_CHAN_LIST *channelList, uint32_t shortTermCompletion, uint32_t out_format, NMXP_BUFFER_FLAG buffer_flag) {
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
    int ret;
    uint32_t buffer_length = 16 + (4 * channelList->number); 
    char *buffer = malloc(buffer_length);
    uint32_t app, i, disp;

    disp=0;

    app = htonl(channelList->number);
    memcpy(&buffer[disp], &app, 4);
    disp+=4;

    for(i=0; i < channelList->number; i++) {
	app = htonl(channelList->channel[i].key);
	memcpy(&buffer[disp], &app, 4);
	disp+=4;
    }
    
    app = htonl(shortTermCompletion);
    memcpy(&buffer[disp], &app, 4);
    disp+=4;

    app = htonl(out_format);
    memcpy(&buffer[disp], &app, 4);
    disp+=4;

    app = htonl(buffer_flag);
    memcpy(&buffer[disp], &app, 4);
    disp+=4;

Matteo Quintiliani's avatar
Matteo Quintiliani committed
91
    ret = nmxp_sendMessage(isock, NMXP_MSG_ADDTIMESERIESCHANNELS, buffer, buffer_length);
92
93
94
95
96
97
98
99

    if(buffer) {
	free(buffer);
    }
    return ret;
}


100
101
102
int nmxp_receiveData(int isock, NMXP_CHAN_LIST *channelList,
	int (*func_processData)(NMXP_PROCESS_DATA *pd)
	) {
103
104
    int ret;

Matteo Quintiliani's avatar
Matteo Quintiliani committed
105
    NMXP_MSG_SERVER type;
106
107
108
    void *buffer;
    uint32_t length;

109
    ret = nmxp_receiveMessage(isock, &type, &buffer, &length);
110

111
    if(type == NMXP_MSG_COMPRESSED) {
112
	nmxp_processCompressedDataFunc(buffer, length, channelList, func_processData);
113
    } else if(type == NMXP_MSG_DECOMPRESSED) {
114
	nmxp_processDecompressedDataFunc(buffer, length, channelList, func_processData);
115
    } else {
116
	nmxp_log(1, 0, "Type %d is not NMXP_MSG_COMPRESSED or NMXP_MSG_DECOMPRESSED!\n", type);
117
118
    }

Matteo Quintiliani's avatar
Matteo Quintiliani committed
119
120
121
122
    if(buffer) {
	free(buffer);
    }

123
124
125
    return ret;
}

126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171

int nmxp_sendConnectRequest(int isock, char *naqs_username, char *naqs_password, uint32_t connection_time) {
    int ret;
    char crc32buf[100];
    NMXP_CONNECT_REQUEST connectRequest;

    strcpy(connectRequest.username, naqs_username);
    connectRequest.version = htonl(0);
    connectRequest.connection_time = htonl(connection_time);

    if(strlen(naqs_username) == 0  &&  strlen(naqs_password) == 0 ) {
	sprintf(crc32buf, "%d%d", connectRequest.version, connection_time);
    } else if(strlen(naqs_username) != 0  &&  strlen(naqs_password) != 0 ) {
	sprintf(crc32buf, "%s%d%d%s", naqs_username, connectRequest.version,
		connection_time, naqs_password);
    } else if(strlen(naqs_username) != 0 ) {
	sprintf(crc32buf, "%s%d%d", naqs_username, connectRequest.version, connection_time);
    } else if(strlen(naqs_password) != 0 ) {
	sprintf(crc32buf, "%d%d%s", connectRequest.version, connection_time, naqs_password);
    }
    connectRequest.crc32 = htonl(crc32((unsigned char *) crc32buf, strlen(crc32buf)));

    ret = nmxp_sendMessage(isock, NMXP_MSG_CONNECTREQUEST, &connectRequest, sizeof(NMXP_CONNECT_REQUEST));

    if(ret == NMXP_SOCKET_OK) {
	nmxp_log(0,0, "Send a ConnectRequest crc32buf = (%s), crc32 = %d\n", crc32buf, crc32);
    } else {
	nmxp_log(1,0, "Send a ConnectRequest.\n");
    }

    return ret;
}


int nmxp_readConnectionTime(int isock, uint32_t *connection_time) {
    int ret;
    ret = nmxp_recv_ctrl(isock, connection_time, sizeof(connection_time));
    *connection_time = ntohl(*connection_time);
    nmxp_log(0,0, "Read connection time from socket %d.\n", *connection_time);
    if(ret != NMXP_SOCKET_OK) {
	nmxp_log(1,0, "Read connection time from socket.\n");
    }
    return ret;
}


172
int nmxp_waitReady(int isock) {
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
    int times = 0;
    int rc = NMXP_SOCKET_OK;
    unsigned long signature;
    unsigned long type = 0;
    unsigned long length;

    while(rc == NMXP_SOCKET_OK  &&  type != NMXP_MSG_READY) {
	rc = nmxp_recv_ctrl(isock, &signature, sizeof(signature));
	if(rc != NMXP_SOCKET_OK) return rc;
	signature = ntohl(signature);
	if(signature == 0) {
	    nmxp_log(0, 0, "signature is equal to zero. receive again.\n");
	    rc = nmxp_recv_ctrl(isock, &signature, sizeof(signature));
	    signature = ntohl(signature);
	}
	if(signature != NMX_SIGNATURE) {
	    nmxp_log(1, 0, "signature is not valid. signature = %d\n", signature);
	    return NMXP_SOCKET_ERROR;
	}

	rc = nmxp_recv_ctrl(isock, &type, sizeof(type));
	if(rc != NMXP_SOCKET_OK) return rc;
	type = ntohl(type);
	if(type != NMXP_MSG_READY) {
	    nmxp_log(0, 0, "type is not READY. type = %d\n", type);
	    rc = nmxp_recv_ctrl(isock, &length, sizeof(length));
	    if(rc != NMXP_SOCKET_OK) return rc;
	    length = ntohl(length);
	    if(length > 0) {
		if(length == 4) {
		    int32_t app;
		    rc = nmxp_recv_ctrl(isock, &app, length);
		    if(rc != NMXP_SOCKET_OK) return rc;
		    app = ntohl(app);
		    nmxp_log(0, 1, "value = %d\n", app);
		} else {
		    char *buf_app = (char *) malloc(sizeof(char) * length);
		    rc = nmxp_recv_ctrl(isock, buf_app, length);
		    if(buf_app) {
			free(buf_app);
		    }
		}
	    }
	} else {
	    rc = nmxp_recv_ctrl(isock, &length, sizeof(length));
	    if(rc != NMXP_SOCKET_OK) return rc;
	    length = ntohl(length);
	    if(length != 0) {
		nmxp_log(1, 0, "length is not equal to zero. length = %d\n", length);
		return NMXP_SOCKET_ERROR;
	    }
	}

	times++;
	if(times > 10) {
	    nmxp_log(1, 0, "waiting_ready_message. times > 10\n");
	    rc = NMXP_SOCKET_ERROR;
	}

    }

    return rc;
}


int nmxp_sendDataRequest(int isock, uint32_t key, uint32_t start_time, uint32_t end_time) {
    int ret;
    NMXP_DATA_REQUEST dataRequest;

    dataRequest.chan_key = htonl(key);
    dataRequest.start_time = htonl(start_time);
    dataRequest.end_time = htonl(end_time);

    ret = nmxp_sendMessage(isock, NMXP_MSG_DATAREQUEST, &dataRequest, sizeof(dataRequest));

    if(ret != NMXP_SOCKET_OK) {
	nmxp_log(1,0, "Send a Request message\n");
    }

    return ret;
}


256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
NMXP_CHAN_LIST *nmxp_getAvailableChannelList(char * hostname, int portnum, NMXP_DATATYPE datatype) {
    int naqssock;
    NMXP_CHAN_LIST *channelList = NULL, *channelList_subset = NULL;
    int i;

    // 1. Open a socket
    naqssock = nmxp_openSocket(hostname, portnum);

    if(naqssock != NMXP_SOCKET_ERROR) {

	// 2. Send a Connect
	if(nmxp_sendConnect(naqssock) == NMXP_SOCKET_OK) {

	    // 3. Receive ChannelList
	     if(nmxp_receiveChannelList(naqssock, &channelList) == NMXP_SOCKET_OK) {

		 channelList_subset = nmxp_chan_getType(channelList, datatype);
		 nmxp_log(0, 1, "%d / %d\n", channelList_subset->number, channelList->number);

		 // nmxp_chan_sortByKey(channelList_subset);
		 nmxp_chan_sortByName(channelList_subset);

		 for(i=0; i < channelList_subset->number; i++) {
		     nmxp_log(0, 1, "%12d %s\n", channelList_subset->channel[i].key, channelList_subset->channel[i].name);
		 }

		 // 4. Send a Request Pending (optional)

		 // 5. Send AddChannels

		 // 6. Repeat until finished: receive and handle packets

		 // 7. Send Terminate Subscription
		 nmxp_sendTerminateSubscription(naqssock, NMXP_SHUTDOWN_NORMAL, "Good Bye!");

	     } else {
		 printf("Error on receiveChannelList()\n");
	     }
	} else {
	    printf("Error on sendConnect()\n");
	}

	// 8. Close the socket
	nmxp_closeSocket(naqssock);
    }

    if(channelList) {
	free(channelList);
    }

    return channelList_subset;
}