Belle II Software development
RFConf Class Reference
Inheritance diagram for RFConf:
RFNodeManager

Public Member Functions

 RFConf (const char *file)
 
char * getconf (const char *key1, const char *key2=NULL, const char *key3=NULL)
 
int getconfi (const char *key1, const char *key2=NULL, const char *key3=NULL)
 

Private Attributes

FILE * m_fd
 

Detailed Description

Definition at line 24 of file RFConf.h.

Constructor & Destructor Documentation

◆ RFConf()

RFConf ( const char *  file)

Definition at line 18 of file RFConf.cc.

19{
20 m_fd = fopen(filename, "r");
21 if (m_fd == NULL) {
22 fprintf(stderr, "RFConf : config file not found %s\n", filename);
23 exit(-1);
24 }
25}

◆ ~RFConf()

~RFConf ( )

Definition at line 27 of file RFConf.cc.

28{
29 fclose(m_fd);
30}

Member Function Documentation

◆ getconf()

char * getconf ( const char *  key1,
const char *  key2 = NULL,
const char *  key3 = NULL 
)

Definition at line 34 of file RFConf.cc.

35{
36 char buf[1024], keybuf[256];
37 char* p, *q;
38
39 struct RFConf_t top, *cur;
40 top.key = NULL;
41
42 // Encode key2 and key3 in the first key if exist
43 // if (! key2) { key2 = key3; key3 = 0; }
44 // if (! key1) { key1 = key2; key2 = key3; key3 = 0; }
45 if (key3)
46 sprintf(keybuf, "%s.%s.%s", key1, key2, key3);
47 else if (key2)
48 sprintf(keybuf, "%s.%s", key1, key2);
49 else if (key1)
50 strcpy(keybuf, key1);
51 else
52 return NULL;
53
54 // Search for the record in the configuration file
55 rewind(m_fd);
56 if (! top.key) { /* the first invokation */
57 int line = 0;
58 cur = ⊤
59 while (fgets(buf, sizeof(buf), m_fd)) {
60 line++;
61 /* remove '\n' and skip too long line */
62 p = strchr(buf, '\n');
63 if (! p) {
64 fprintf(stderr, "RFConf : line %d too long\n", line);
65 while (fgets(buf, sizeof(buf), m_fd) && !strchr(buf, '\n'))
66 ;
67 continue;
68 }
69 *p = 0;
70 // printf ( "buf = %s\n", buf );
71
72 /* sorry for this very tricky code... */
73 char* keyp = nullptr;
74 char* delp = nullptr;
75 char* valp = nullptr;
76 for (p = buf; *p && *p != '#'; p++) {
77 if (! keyp) {
78 if (! isspace(*p)) keyp = p;
79 } else if (! delp) {
80 if (isspace(*p)) {
81 if (!isspace(*(p + 1)) && *(p + 1) != ':') {
82 fprintf(stderr, "RFConf : invalid key at line %d\n", line);
83 break;
84 }
85 *p = 0;
86 } else if (*p == ':') {
87 *(delp = p) = 0;
88 }
89 } else if (! valp) {
90 if (! isspace(*p)) {
91 valp = q = p;
92 q++;
93 }
94 } else if (! isspace(*p)) {
95 *q++ = *p;
96 } else if (! isspace(*(p + 1))) {
97 *q++ = ' ';
98 }
99 }
100 if (valp) {
101 for (*q-- = 0; isspace(*q); *q-- = 0)
102 ;
103 }
104 if (delp) {
105 cur->next = (RFConf_t*)malloc(sizeof(*cur));
106 cur = cur->next;
107 cur->next = 0;
108 cur->key = (char*)malloc(strlen(keyp) + 1);
109 strcpy(cur->key, keyp);
110 if (valp) {
111 cur->val = (char*)malloc(strlen(valp) + 1);
112 strcpy(cur->val, valp);
113 } else {
114 cur->val = 0;
115 }
116 }
117 }
118 } else if (! top.val) { /* the first invokation must have failed */
119 return NULL;
120 }
121
122 int nitem = 0;
123 for (cur = ⊤ cur; cur = cur->next) {
124 if (cur->key == NULL) continue;
125 if (strcmp(cur->key, keybuf) == 0) return cur->val;
126 nitem++;
127 }
128 printf("RFConf: Key %s not found\n", keybuf);
129 printf("nitem = %d, keybuf = %s\n", nitem, keybuf);
130 return NULL;
131}

◆ getconfi()

int getconfi ( const char *  key1,
const char *  key2 = NULL,
const char *  key3 = NULL 
)

Definition at line 133 of file RFConf.cc.

134{
135 return atoi(getconf(key1, key2, key3));
136}

Member Data Documentation

◆ m_fd

FILE* m_fd
private

Definition at line 38 of file RFConf.h.


The documentation for this class was generated from the following files: