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1.1 misho 1: /*
2: * out_format.c Formatted Output
3: *
4: * Copyright (c) 2001-2004 Thomas Graf <tgraf@suug.ch>
5: *
6: * Permission is hereby granted, free of charge, to any person obtaining a
7: * copy of this software and associated documentation files (the "Software"),
8: * to deal in the Software without restriction, including without limitation
9: * the rights to use, copy, modify, merge, publish, distribute, sublicense,
10: * and/or sell copies of the Software, and to permit persons to whom the
11: * Software is furnished to do so, subject to the following conditions:
12: *
13: * The above copyright notice and this permission notice shall be included
14: * in all copies or substantial portions of the Software.
15: *
16: * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
17: * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18: * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19: * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20: * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
21: * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
22: * DEALINGS IN THE SOFTWARE.
23: */
24:
25: #include <bmon/bmon.h>
26: #include <bmon/graph.h>
27: #include <bmon/conf.h>
28: #include <bmon/output.h>
29: #include <bmon/input.h>
30: #include <bmon/node.h>
31: #include <bmon/utils.h>
32:
33: static int c_quit_after = -1;
34: static char *c_format;
35: static int c_debug = 0;
36: static FILE *c_fd;
37:
38: enum {
39: OT_STRING,
40: OT_TOKEN
41: };
42:
43: static struct out_token {
44: int ot_type;
45: char *ot_str;
46: } *out_tokens;
47:
48: static int token_index;
49: static int out_tokens_size;
50:
51: static inline char *itos(b_cnt_t n)
52: {
53: static char str[128];
54: snprintf(str, sizeof(str), "%" PRIu64, n);
55: return str;
56: }
57:
58: static char *get_token(node_t *node, item_t *it, const char *token)
59: {
60: if (!strcasecmp(token, "node:index"))
61: return itos(node->n_index);
62: else if (!strcasecmp(token, "node:name"))
63: return node->n_name;
64: else if (!strcasecmp(token, "node:from"))
65: return node->n_from;
66: else if (!strcasecmp(token, "node:nitems"))
67: return itos(node->n_nitems);
68: else if (!strcasecmp(token, "node:rx_maj_total"))
69: return itos(node->n_rx_maj_total);
70: else if (!strcasecmp(token, "node:tx_maj_total"))
71: return itos(node->n_tx_maj_total);
72: else if (!strcasecmp(token, "node:rx_min_total"))
73: return itos(node->n_rx_min_total);
74: else if (!strcasecmp(token, "node:tx_min_total"))
75: return itos(node->n_tx_min_total);
76: else if (!strcasecmp(token, "item:name"))
77: return it->i_name;
78: else if (!strcasecmp(token, "item:desc"))
79: return it->i_desc ? it->i_desc : "none";
80: else if (!strcasecmp(token, "item:index"))
81: return itos(it->i_index);
82: else if (!strcasecmp(token, "item:nattrs"))
83: return itos(it->i_nattrs);
84: else if (!strcasecmp(token, "item:lifetime"))
85: return itos(it->i_lifetime);
86: else if (!strcasecmp(token, "item:level"))
87: return itos(it->i_level);
88: else if (!strcasecmp(token, "item:link"))
89: return itos(it->i_link);
90: else if (!strcasecmp(token, "item:parent"))
91: return itos(it->i_parent);
92: else if (!strcasecmp(token, "item:handle"))
93: return itos(it->i_handle);
94: else if (!strcasecmp(token, "item:rxusage"))
95: return it->i_rx_usage == -1 ? "UNK" : itos(it->i_rx_usage);
96: else if (!strcasecmp(token, "item:txusage"))
97: return it->i_tx_usage == -1 ? "UNK" : itos(it->i_tx_usage);
98: else if (!strcasecmp(token, "item:is_child"))
99: return itos(!!(it->i_flags & ITEM_FLAG_IS_CHILD));
100: else if (!strcasecmp(token, "item:has_childs"))
101: return itos(!!(it->i_flags & ITEM_FLAG_HAS_CHILDS));
102: else if (!strcasecmp(token, "read:sec"))
103: return itos(rtiming.rt_last_read.tv_sec);
104: else if (!strcasecmp(token, "read:usec"))
105: return itos(rtiming.rt_last_read.tv_usec);
106: else if (!strncasecmp(token, "attr:", 5)) {
107: int atype;
108: char *name = strchr(token+5, ':');
109: stat_attr_t *a;
110: if (name == NULL) {
111: fprintf(stderr, "Invalid attribute field \"%s\"\n",
112: token);
113: return "UNK";
114: }
115: atype = name2type(++name);
116:
117: if (atype == INT_MAX || !(a = lookup_attr(it, atype))) {
118: fprintf(stderr, "Unknown attribute \"%s\"\n", name);
119: return "UNK";
120: }
121:
122: if (!strncasecmp(token+5, "rx:", 3))
123: return itos(attr_get_rx(a));
124: else if (!strncasecmp(token+5, "tx:", 3))
125: return itos(attr_get_tx(a));
126: else if (!strncasecmp(token+5, "rxrate:", 7))
127: return itos(attr_get_rx_rate(a));
128: else if (!strncasecmp(token+5, "txrate:", 7))
129: return itos(attr_get_tx_rate(a));
130: else if (!strncasecmp(token+5, "rx64:", 5)) {
131: return a->a_rx.r_is64bit ? "1" : "0";
132: } else if (!strncasecmp(token+5, "tx64:", 5)) {
133: return a->a_tx.r_is64bit ? "1" : "0";
134: } else if (!strncasecmp(token+5, "rxoflows:", 9)) {
135: return itos(a->a_rx.r_overflows);
136: } else if (!strncasecmp(token+5, "txoflows:", 9)) {
137: return itos(a->a_tx.r_overflows);
138: } else if (!strncasecmp(token+5, "rxenab:", 7))
139: return itos(!!(a->a_flags & ATTR_FLAG_RX_ENABLED));
140: else if (!strncasecmp(token+5, "txenab:", 7))
141: return itos(!!(a->a_flags & ATTR_FLAG_TX_ENABLED));
142: }
143:
144: fprintf(stderr, "Unknown field \"%s\"\n", token);
145: return "UNK";
146: }
147:
148: static void format_draw_item(item_t *it, void *arg)
149: {
150: int i;
151: node_t *node = (node_t *) arg;
152:
153: for (i = 0; i < token_index; i++) {
154: if (out_tokens[i].ot_type == OT_STRING) {
155: fprintf(c_fd, "%s", out_tokens[i].ot_str);
156: } else if (out_tokens[i].ot_type == OT_TOKEN)
157: fprintf(c_fd, "%s", get_token(node, it, out_tokens[i].ot_str));
158: }
159: }
160:
161: static void format_draw_node(node_t *n, void *arg)
162: {
163: foreach_item(n, format_draw_item, n);
164: }
165:
166: static void format_draw(void)
167: {
168: foreach_node(format_draw_node, NULL);
169:
170: if (c_quit_after > 0)
171: if (--c_quit_after == 0)
172: exit(0);
173: }
174:
175: static inline void add_token(int type, char *data)
176: {
177: if (!out_tokens_size) {
178: out_tokens_size = 32;
179: out_tokens = calloc(out_tokens_size, sizeof(struct out_token));
180: if (out_tokens == NULL)
181: quit("Cannot allocate out token array\n");
182: }
183:
184: if (out_tokens_size <= token_index) {
185: out_tokens_size += 32;
186: out_tokens = realloc(out_tokens, out_tokens_size * sizeof(struct out_token));
187: if (out_tokens == NULL)
188: quit("Cannot reallocate out token array\n");
189: }
190:
191:
192: out_tokens[token_index].ot_type = type;
193: out_tokens[token_index].ot_str = data;
194: token_index++;
195: }
196:
197: static int format_probe(void)
198: {
199: int new_one = 1;
200: char *p, *e;
201:
202: for (p = c_format; *p; p++) {
203: if (*p == '$') {
204: char *s = p;
205: s++;
206: if (*s == '(') {
207: s++;
208: if (!*s)
209: goto unexpected_end;
210: e = strchr(s, ')');
211: if (e == NULL)
212: goto invalid;
213:
214: *p = '\0';
215: *e = '\0';
216: add_token(OT_TOKEN, s);
217: new_one = 1;
218: p = e;
219: continue;
220: }
221: }
222:
223: if (*p == '\\') {
224: char *s = p;
225: s++;
226: switch (*s) {
227: case 'n':
228: *s = '\n';
229: goto finish_escape;
230: case 't':
231: *s = '\t';
232: goto finish_escape;
233: case 'r':
234: *s = '\r';
235: goto finish_escape;
236: case 'v':
237: *s = '\v';
238: goto finish_escape;
239: case 'b':
240: *s = '\b';
241: goto finish_escape;
242: case 'f':
243: *s = '\f';
244: goto finish_escape;
245: case 'a':
246: *s = '\a';
247: goto finish_escape;
248: }
249:
250: goto out;
251:
252: finish_escape:
253: *p = '\0';
254: add_token(OT_STRING, s);
255: p = s;
256: new_one = 0;
257: continue;
258: }
259:
260: out:
261: if (new_one) {
262: add_token(OT_STRING, p);
263: new_one = 0;
264: }
265: }
266:
267: if (c_debug) {
268: int i;
269: for (i = 0; i < token_index; i++)
270: printf(">>%s<\n", out_tokens[i].ot_str);
271: }
272:
273: return 1;
274:
275: unexpected_end:
276: fprintf(stderr, "Unexpected end of format string\n");
277: return 0;
278:
279: invalid:
280: fprintf(stderr, "Missing ')' in format string\n");
281: return 0;
282: }
283:
284: static void print_help(void)
285: {
286: printf(
287: "format - Formatable Output\n" \
288: "\n" \
289: " Formatable ASCII output for scripts. Calls a drawing function for\n" \
290: " every item per node and outputs according to the specified format\n" \
291: " string. The format string consists of normal text and placeholders\n" \
292: " in the form of $(placeholder).\n" \
293: "\n" \
294: " Author: Thomas Graf <tgraf@suug.ch>\n" \
295: "\n" \
296: " Options:\n" \
297: " fmt=FORMAT Format string\n" \
298: " stderr Write to stderr instead of stdout\n" \
299: " quitafter=NUM Quit bmon NUM outputs\n" \
300: "\n" \
301: " Placeholders:\n" \
302: " read:sec time of last read (seconds)\n" \
303: " read:usec time of last read (micro seconds)\n" \
304: " node:index index of node\n" \
305: " node:name name of node\n" \
306: " node:from origin this node came from\n" \
307: " node:nitems number of items this nodes carries\n" \
308: " node:rx_maj_total total RX rate of major attribute\n" \
309: " node:tx_maj_total total TX rate of major attribute\n" \
310: " node:rx_min_total total RX rate of minor attribute\n" \
311: " node:tx_min_total total TX rate of minor attribute\n" \
312: " item:name name of item\n" \
313: " item:desc description of item\n" \
314: " item:index index of item\n" \
315: " item:nattrs number of attributes this item carries\n" \
316: " item:lifetime lifetime of item\n" \
317: " item:level indentation level of item\n" \
318: " item:link item index of root parent\n" \
319: " item:parent item index of parent\n" \
320: " item:rxusage RX usage of item (in percent)\n" \
321: " item:txusage TX usage of item (in percent)\n" \
322: " item:handle handle of item\n" \
323: " item:is_child 1 if item is a child\n" \
324: " item:has_childs 1 if item has childs\n" \
325: " attr:rx:<name> rx counter of attribute <name>\n" \
326: " attr:tx:<name> tx counter of attribute <name>\n" \
327: " attr:rxrate:<name> rx rate of attribute <name>\n" \
328: " attr:txrate:<name> tx rate of attribute <name>\n" \
329: " attr:rx64:<name> 1 if rx counter of attribute <name> is 64bit sized\n" \
330: " attr:tx64:<name> 1 if tx counter of attribute <name> is 64bit sized\n" \
331: " attr:rxoflows:<name> number of rx counter overflows of attribute <name>\n" \
332: " attr:txoflows:<name> number of tx counter overflows of attribute <name>\n" \
333: " attr:rxenab:<name> 1 if rx counter of attribute <name> is available\n" \
334: " attr:txenab:<name> 1 if rx counter of attribute <name> is available\n" \
335: "\n" \
336: " Supported Escape Sequences: \\n, \\t, \\r, \\v, \\b, \\f, \\a\n" \
337: "\n" \
338: " Examples:\n" \
339: " \"$(node:name)\\t$(item:name)\\t$(attr:rx:bytes)\\t$(attr:tx:bytes)\\n\"\n" \
340: " axs lo 12074 12074\n" \
341: "\n" \
342: " \"$(item:name) $(attr:rxrate:packets) $(attr:txrate:packets)\\n\"\n" \
343: " eth0 33 5\n" \
344: "\n" \
345: " \"Node: $(node:name)\\nItem: $(item:name)\\nBytes Rate: \" \\\n" \
346: " \"$(attr:rxrate:bytes)/$(attr:txrate:bytes)\\nPackets Rate: \" \\\n" \
347: " \"$(attr:rxrate:packets)/$(attr:txrate:packets)\\n\"\n" \
348: " Node: axs\n" \
349: " Item: eth0\n" \
350: " Bytes Rate: 49130/2119\n" \
351: " Packets Rate: 40/11\n" \
352: "\n");
353: }
354:
355: static void format_set_opts(tv_t *attrs)
356: {
357: while (attrs) {
358: if (!strcasecmp(attrs->type, "stderr"))
359: c_fd = stderr;
360: else if (!strcasecmp(attrs->type, "debug"))
361: c_debug = 1;
362: else if (!strcasecmp(attrs->type, "fmt")) {
363: if (c_format)
364: free(c_format);
365: c_format = strdup(attrs->value);
366: } else if (!strcasecmp(attrs->type, "quitafter") &&
367: attrs->value)
368: c_quit_after = strtol(attrs->value, NULL, 0);
369: else if (!strcasecmp(attrs->type, "help")) {
370: print_help();
371: exit(0);
372: }
373:
374: attrs = attrs->next;
375: }
376: }
377:
378: static struct output_module format_ops = {
379: .om_name = "format",
380: .om_draw = format_draw,
381: .om_probe = format_probe,
382: .om_set_opts = format_set_opts,
383: };
384:
385: static void __init ascii_init(void)
386: {
387: c_fd = stdout;
388: c_format = strdup("$(node:name) $(item:name) $(attr:rx:bytes) $(attr:tx:bytes) " \
389: "$(attr:rx:packets) $(attr:tx:packets)\\n");
390: register_output_module(&format_ops);
391: }