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root/i-scream/projects/cms/source/host/c++/SysMon.cpp
Revision: 1.2
Committed: Mon Mar 5 12:38:35 2001 UTC (23 years, 8 months ago) by ab11
Branch: MAIN
Changes since 1.1: +148 -30 lines
Log Message:
Added support for dynamic modification of statgrab.pl.

Hard coded some values into it to get round the current UDP size problem (won't send full data set)

File Contents

# User Rev Content
1 ab11 1.1 #include "SysMon.h"
2    
3     SysMon::SysMon( Config config, int printDebug){
4     // debugging on?
5     debug = printDebug;
6    
7     if ( debug == 1 ){
8     std::cout << "SysMon::Constructor\n";
9     }
10    
11     // setup some standard variables
12     sequence = 0; // no packets sent yet
13    
14     // get our values from config
15    
16    
17     // setup our arrays
18     titlepointer = 0;
19     for ( int i=0; i < 40; i++ ){
20     titles[i] = "";
21     values[i] = "";
22     }
23    
24     checks = 0;
25    
26     } // constructor
27    
28     int SysMon::collect(){
29     if ( debug == 1 ){
30     std::cout << "SysMon::collect()\n";
31     }
32    
33     // say we have checked again
34     checks++;
35    
36     // collect the system data and place it in an array of strings.
37     // presume that the data is all formtted correctly.
38     char input[2048];
39     if ( debug == 1 ){
40     std::cout << "SysMon::collect::ipipestream\n";
41     }
42     ipipestream p("statgrab.pl");
43    
44     // get the output into input from statgrab
45     while ( p.getline (input, 2048) ){
46     // find the first non-whitespace char in input
47     string sinput = input;
48     // locate the first white space
49     int found = sinput.find(" ",0);
50     if ( found == string::npos ){
51     // error
52     if ( debug == 1 ){
53     std::cout << "SysMon::collect::Parse error from statgrab.pl\n";
54     }
55     } else {
56     int gotTitle = 0;
57     // now use the array of titles and values
58     for ( int i = 0; i < 60; i++ ){
59     // check against the array value
60     if ( titles[i] == sinput.substr(0,found) ){
61     // is the one we are looking for.
62 ab11 1.2 if ( debug == 2 ){
63 ab11 1.1 std::cout << "SysMon::collect::Found Value\n";
64 ab11 1.2
65 ab11 1.1 }
66 ab11 1.2 gotTitle = 1;
67 ab11 1.1 // now modify the data in the arrays if they are numbers
68     int * end;
69     char *buffer;
70     // buffer = sinput.substr(found+1, sinput.length());
71     double dbl = 0; // strtod((char *) sinput.substr(found+1, sinput.length()), &end);
72     if ( dbl == 0 ){
73     // error? we aren't so sure. check the position
74     // of end.
75     if ( *end == sinput.length()-1 ){
76     // was the end.. ok
77    
78 ab11 1.2 } // if
79 ab11 1.1 } else {
80     // must have worked!
81     double dbl2 = 0; //strtod(values[i], &end);
82     dbl2 += dbl;
83     char *buffer;
84 ab11 1.2 int precision = 5;
85 ab11 1.1 int decimal, sign;
86     buffer = ecvt (dbl2, precision, &decimal, &sign);
87     } // if
88     } // if
89     } // for
90     // did we find this title? if not add it
91     if ( gotTitle == 0 ){
92     // didnt
93     if ( debug == 1 ){
94     std::cout << "SysMon::collect::Adding New Value\n";
95     std::cout << "'" << sinput.substr(0,found) << "'\n";
96     std::cout << "'" << sinput.substr(found+1, sinput.length()) << "'\n";
97     }
98     titles[titlepointer] = sinput.substr(0,found);
99     values[titlepointer] = sinput.substr(found+1, sinput.length());
100     titlepointer++;
101     } // if
102    
103     } // if (not) found
104    
105     } // while
106    
107 ab11 1.2 // delete p;
108    
109 ab11 1.1 if ( debug == 1 ){
110     std::cout << "SysMon::collect::Parse from StatGrab finished\n";
111     }
112    
113     // alert?
114     // return 1;
115    
116     // return sucessful
117     return 0;
118    
119     } // collect
120    
121     string SysMon::getData(){
122    
123     if ( debug == 1 ){
124     std::cout << "SysMon::getData()\n";
125     }
126    
127     // create an xml object
128     XMLFormatter xml = XMLFormatter();
129 ab11 1.2
130     int i=0;
131     int count = 0;
132     int finished = 0;
133     string root = "packet.";
134     string level = root;
135     string attributes = "";
136     string attr = "";
137     // while ( i < titlepointer ){
138     // hard coding
139     while ( i < 10 ){
140     finished = 0;
141     count = 0;
142     attr = "";
143     while ( finished != 1 ){
144     count++;
145     if ( count > 10 ){
146     // don't do more than 10 times.. its probably not gonna work!
147     finished = 1;
148     }
149    
150     // do for each item
151     int where = titles[i].find(level,0);
152    
153     // where now contains the position of 'level'
154     if ( where != string::npos ){
155     // we found it, now check the size to see if this is the final level
156     // grab the end bit a look for .'s
157     string end = titles[i].substr(level.length(), titles[i].length()-level.length() );
158    
159     // now end should contain "something.something" etc
160     // look to find a . in there that means more to traverse
161     // but check for 'attributes' tags...
162    
163     where = end.find("attributes.",0);
164     if ( where != string::npos ){
165     // is an attribute
166     // need to check that there are no more levels above this one
167    
168    
169    
170     /*
171    
172     // where points to the start of attributes
173     int start = 0;
174     if ( level.find(".",start) < where-1 ){
175     start = level.find(".", start);
176     } // if
177    
178     // start points to the thing to apply the attributes to.
179     // need to take the level upto before this point
180     string needLevel = end.substr(0,start-2);
181     std::cout << "needlevel " << needLevel << endl;
182    
183     // now we need to find the level we are at
184     while (( needLevel.length() > 0 ) && (needLevel.find(".",0) != string::npos ) ){
185     int got = needLevel.find(".",0);
186     if ( got != string::npos ){
187     // we need to grab up until the .
188     xml.addNest(needLevel.substr(0,got));
189     level += needLevel.substr(0,got);
190     level += ".";
191     std::cout << "Adding Nest " << needLevel.substr(0,got) << endl;
192     needLevel = needLevel.substr(got+1, needLevel.length()-(got+1));
193     } // if
194     std::cout << "needlevel " << needLevel << endl;
195     } // while
196    
197     // add the final nest
198     xml.addNest(needLevel);
199     level += needLevel;
200     level += ".";
201     std::cout << "Adding Nest " << needLevel << endl;
202    
203     */
204    
205     // now write out the variable
206     xml.addElement(end, values[i]);
207     finished = 1;
208    
209     } else {
210     if ( where == 0 ){
211     // this is something we care about.
212     // it has an attribute tab, and thus we want to add it
213     // to the tag one lower than this (hopefully level!)
214    
215     // attributes = attributes + mount
216     attributes += end.substr(where+11, end.length()-(where+11));
217     // attributes = attributes + mount="
218     attributes += "=\"";
219     // attributes = attributes + mount="/dev
220     attributes += values[i];
221     // attributes = attributes + mount="/dev"
222     attributes += "\" ";
223     } else {
224     // need to check if we are the last element before
225     // an attribute tag, so we want to get up to this tag first
226     while ( end.find(".",0) != string::npos ){
227    
228     where = end.find(".",0);
229     string newNest = end.substr(0,where);
230     xml.addNest(newNest);
231     level += newNest;
232     level += ".";
233     // redefine end
234     end = end.substr(where+1, end.length()-(where+1));
235     } // while
236    
237    
238     xml.addElement(end, values[i]);
239     finished = 1;
240     } // if where == 0
241     } // if attribute tags
242    
243    
244    
245    
246     } else { // if doesn't contains level
247    
248     // we need to move one back and try again, until we are all the way
249     // back to "packet."
250     // go about it by closing nests
251    
252     while ( level.length() > root.length() ){
253     // need to close one nest and locate the next . from the end (hassle)
254     int start = 0;
255     if ( level.find(".",start) != string::npos ){
256     start = level.find(".", start);
257     } // if
258     // should now have the last .
259     xml.closeNest();
260     level = level.substr(0, start+1);
261     }
262    
263     } // if contains level
264    
265     } // while
266     i++;
267     } // while
268    
269 ab11 1.1
270    
271    
272    
273    
274 ab11 1.2
275 ab11 1.1 // return the string
276     return xml.returnXML();
277    
278     } // getData