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1.1 snw 1: /*
2: * *
3: * * *
4: * * *
5: * ***************
6: * * * * *
7: * * MUMPS *
8: * * * * *
9: * ***************
10: * * *
11: * * *
12: * *
13: *
14: * fma_journals.c
15: * Journal utilities for fmadm
16: *
17: *
18: * Author: Serena Willis <jpw@coherent-logic.com>
19: * Copyright (C) 1998 MUG Deutschland
20: * Copyright (C) 2020 Coherent Logic Development LLC
21: *
22: *
23: * This file is part of FreeM.
24: *
25: * FreeM is free software: you can redistribute it and/or modify
26: * it under the terms of the GNU Affero Public License as published by
27: * the Free Software Foundation, either version 3 of the License, or
28: * (at your option) any later version.
29: *
30: * FreeM is distributed in the hope that it will be useful,
31: * but WITHOUT ANY WARRANTY; without even the implied warranty of
32: * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
33: * GNU Affero Public License for more details.
34: *
35: * You should have received a copy of the GNU Affero Public License
36: * along with FreeM. If not, see <https://www.gnu.org/licenses/>.
37: *
38: **/
39:
40: #include <stdlib.h>
41: #include <stdio.h>
42: #include <stdlib.h>
43: #include <string.h>
44: #include <dirent.h>
45: #include <time.h>
46: #include <unistd.h>
47: #include <sys/types.h>
48: #include <sys/stat.h>
49: #include <fcntl.h>
50: #include <errno.h>
51:
52: #include "fmadm.h"
53: #include "jnldefs.h"
54:
55: void cvt_key (char *buf, char *key);
56: extern short ierr;
57:
58: int fma_journals_examine (int optc, char **opts)
59: {
60: register int i;
61: register int k;
62: int fd;
63: unsigned long siz;
64: unsigned long ct;
65:
66: char buf[2048];
67: char kbuf[1024];
68: char *tbuf;
69:
70: char dbuf[2049];
71:
72: jnl_hdr_t hdr;
73: jnl_ent_t ent;
74:
75: if ((fd = open (fma_journal_path, O_RDONLY)) == -1) {
76: fprintf (stderr, "fmadm: error %d opening journal file %s (%s)\n", errno, fma_journal_path, strerror (errno));
77:
78: exit (2);
79: }
80:
81: if (read (fd, &hdr, sizeof (jnl_hdr_t)) == -1) {
82: fprintf (stderr, "fmadm: error %d reading header from journal file %s (%s)\n", errno, fma_journal_path, strerror (errno));
83:
84: exit (3);
85: }
86:
87: printf ("\nFreeM Journal Dump\n");
88: printf ("------------------\n\n");
89:
90: printf ("Namespace: %s\n", fma_namespace);
91: printf ("Journal File: %s\n", fma_journal_path);
92: printf ("Journal Format Version: %d\n", hdr.fmt_version);
93: printf ("Cut Threshold: %s bytes\n", fma_journal_cut_threshold);
94:
95: lseek (fd, 0L, SEEK_SET);
96: siz = lseek (fd, 0L, SEEK_END);
97:
98: ct = (siz - sizeof (jnl_hdr_t)) / sizeof (jnl_ent_t);
99:
100: printf ("Journal Entries: %ld\n\n", ct);
101:
102: printf ("%-26s %-6s %-7s %-10s %s\n", "DATE", "PID", "TRNID", "ACTION", "DATA");
103: printf ("%-26s %-6s %-7s %-10s %s\n", "----", "---", "-----", "------", "----");
104:
105: lseek (fd, sizeof (jnl_hdr_t), SEEK_SET);
106:
107: for (i = 0; i < ct; i++) {
108:
109: read (fd, &ent, sizeof (jnl_ent_t));
110:
111: switch (ent.action) {
112:
113: case JNLA_TSTART:
114: strcpy (buf, "TSTART");
115: break;
116:
117: case JNLA_TROLLBACK:
118: strcpy (buf, "TROLLBACK");
119: break;
120:
121: case JNLA_TCOMMIT:
122: strcpy (buf, "TCOMMIT");
123: break;
124:
125: case JNLA_SET:
126: strcpy (buf, "SET");
127: break;
128:
129: case JNLA_KILL:
130: strcpy (buf, "KILL");
131: break;
132:
133: }
134:
135: cvt_key (kbuf, ent.key);
136:
137:
138: tbuf = ctime (&ent.ts);
139: tbuf[strlen(tbuf) - 1] = '\0';
140:
141: if (ent.action == JNLA_SET) {
142:
143: snprintf (dbuf, 2049, "%s=%s", kbuf, ent.data);
144:
145: for (k = 0; k < strlen (dbuf); k++) {
146: if (dbuf[k] == '\201') dbuf[k] = '\0';
147: }
148:
149: printf ("%-26s %-6d %-7ld %-10s %s\n", tbuf, ent.pid, ent.tran_id, buf, dbuf);
150:
151: }
152: else {
153: printf ("%-26s %-6d %-7ld %-10s %s\n", tbuf, ent.pid, ent.tran_id, buf, kbuf);
154: }
155:
156: }
157:
158: return 0;
159:
160: }
161:
162: int fma_journals_restore (int optc, char **opts)
163: {
164:
165: register int i;
166: register int k;
167: int fd;
168: unsigned long siz;
169: unsigned long ct;
170:
171: char kbuf[1024];
172: char *tbuf;
173:
174: char dbuf[2049];
175:
176: jnl_hdr_t hdr;
177: jnl_ent_t ent;
178:
179: if ((fd = open (fma_journal_path, O_RDONLY)) == -1) {
180: fprintf (stderr, "error: error %d opening journal file %s\n", errno, fma_journal_path);
181:
182: exit (2);
183: }
184:
185: if (read (fd, &hdr, sizeof (jnl_hdr_t)) == -1) {
186: fprintf (stderr, "error: error %d reading header from journal file %s\n", errno, fma_journal_path);
187:
188: exit (3);
189: }
190:
191: printf ("\nFreeM Journal Playback\n");
192: printf ("----------------------\n\n");
193:
194: printf ("Namespace: %s\n", fma_namespace);
195: printf ("Journal File: %s\n", fma_journal_path);
196: printf ("Journal Format Version: %d\n", hdr.fmt_version);
197: printf ("Cut Threshold: %s bytes\n", fma_journal_cut_threshold);
198:
199: lseek (fd, 0L, SEEK_SET);
200: siz = lseek (fd, 0L, SEEK_END);
201:
202: ct = (siz - sizeof (jnl_hdr_t)) / sizeof (jnl_ent_t);
203:
204: printf ("Journal Entries: %ld\n\n", ct);
205:
206:
207: lseek (fd, sizeof (jnl_hdr_t), SEEK_SET);
208:
209: for (i = 0; i < ct; i++) {
210:
211: read (fd, &ent, sizeof (jnl_ent_t));
212:
213: switch (ent.action) {
214:
215: case JNLA_TSTART:
216: printf (" Played back TSTART (transaction id %ld)\n", ent.tran_id);
217: break;
218:
219: case JNLA_TROLLBACK:
220: printf (" Played back TROLLBACK (transaction id %ld)\n", ent.tran_id);
221: break;
222:
223: case JNLA_TCOMMIT:
224: printf (" Played back TCOMMIT (transaction id %ld)\n", ent.tran_id);
225: break;
226:
227: case JNLA_SET:
228: global (set_sym, ent.key, ent.data);
229: printf (" Played back SET (transaction id %ld)\n", ent.tran_id);
230: break;
231:
232: case JNLA_KILL:
233: global (kill_sym, ent.key, ent.data);
234: printf (" Played back KILL (transaction id %ld)\n", ent.tran_id);
235: break;
236:
237: }
238:
239: }
240:
241: return 0;
242:
243: }
244:
245:
246: void cvt_key (char *buf, char *key)
247: {
248: int i;
249: int j = 0;
250: int first = 1;
251:
252: if (key[0] == '\0') {
253: buf[0] = '\0';
254:
255: return;
256: }
257:
258: for(i = 0; i < 1023; i++) {
259:
260: switch (key[i]) {
261:
262: case '\201':
263: if (first == 0) {
264: buf[j] = ')';
265: buf[j + 1] = '\0';
266: }
267: else {
268: buf[j] = '\0';
269: }
270: return;
271:
272: case '\202':
273: if (first == 1) {
274: buf[j] = '(';
275: first = 0;
276: }
277: else {
278: buf[j] = ',';
279: }
280:
281: break;
282:
283: default:
284: buf[j] = key[i];
285: break;
286: }
287:
288: j++;
289: }
290:
291: }