root/src/jlog/jtest.c

Revision cc981f5c55100675865b6960135d70148d8585af, 4.8 kB (checked in by Theo Schlossnagle <jesus@omniti.com>, 3 years ago)

pull in jlog @ 52

  • Property mode set to 100644
Line 
1 /*
2  * Copyright (c) 2005-2008, Message Systems, Inc.
3  * All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions are
7  * met:
8  *
9  *    * Redistributions of source code must retain the above copyright
10  *      notice, this list of conditions and the following disclaimer.
11  *    * Redistributions in binary form must reproduce the above
12  *      copyright notice, this list of conditions and the following
13  *      disclaimer in the documentation and/or other materials provided
14  *      with the distribution.
15  *    * Neither the name Message Systems, Inc. nor the names
16  *      of its contributors may be used to endorse or promote products
17  *      derived from this software without specific prior written
18  *      permission.
19  *
20  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
21  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
22  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
23  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
24  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
25  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
26  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
27  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
28  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
29  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
30  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
31  */
32
33 #include "jlog.h"
34
35 #define SUBSCRIBER "voyeur"
36 #define LOGNAME    "/tmp/jtest.foo"
37 jlog_ctx *ctx;
38
39 void usage() {
40   fprintf(stderr, "options:\n\tinit\n\tread <count>\n\twrite <len> <count>\n");
41 }
42 void jcreate() {
43   ctx = jlog_new(LOGNAME);
44   jlog_ctx_alter_journal_size(ctx, 1024);
45   if(jlog_ctx_init(ctx) != 0) {
46     fprintf(stderr, "jlog_ctx_init failed: %d %s\n", jlog_ctx_err(ctx), jlog_ctx_err_string(ctx));
47   } else {
48     jlog_ctx_add_subscriber(ctx, SUBSCRIBER, JLOG_BEGIN);
49   }
50   jlog_ctx_close(ctx);
51 }
52
53 void jopenw(char *foo, int count) {
54   int i;
55   ctx = jlog_new(LOGNAME);
56   if(jlog_ctx_open_writer(ctx) != 0) {
57     fprintf(stderr, "jlog_ctx_open_writer failed: %d %s\n", jlog_ctx_err(ctx), jlog_ctx_err_string(ctx));
58     exit(-1);
59   }
60   for(i=0; i<count; i++)
61     if(jlog_ctx_write(ctx, foo, strlen(foo)) != 0)
62       fprintf(stderr, "jlog_ctx_write_message failed: %d %s\n", jlog_ctx_err(ctx), jlog_ctx_err_string(ctx));
63
64   jlog_ctx_close(ctx);
65 }
66 void jopenr(char *s, int expect) {
67   char begins[20], ends[20];
68   jlog_id begin, end;
69   int count;
70   jlog_message message;
71
72   ctx = jlog_new(LOGNAME);
73   if(jlog_ctx_open_reader(ctx, s) != 0) {
74     fprintf(stderr, "jlog_ctx_open_reader failed: %d %s\n", jlog_ctx_err(ctx), jlog_ctx_err_string(ctx));
75     exit(-1);
76   }
77   while(expect > 0) {
78     if((count = jlog_ctx_read_interval(ctx, &begin, &end)) == -1) {
79       fprintf(stderr, "jlog_ctx_read_interval failed: %d %s\n", jlog_ctx_err(ctx), jlog_ctx_err_string(ctx));
80       exit(-1);
81     }
82     jlog_snprint_logid(begins, sizeof(begins), &begin);
83     jlog_snprint_logid(ends, sizeof(ends), &end);
84     /* printf("reader [%s]  (%s, %s] count: %d\n", s, begins, ends, count); */
85     if(count > 0) {
86       int i;
87       count = MIN(count, expect);
88       for(i=0; i<count; i++, JLOG_ID_ADVANCE(&begin)) {
89         end = begin;
90         if(jlog_ctx_read_message(ctx, &begin, &message) != 0) {
91           fprintf(stderr, "read failed: %d\n", jlog_ctx_err(ctx));
92         } else {
93           expect--;
94           jlog_snprint_logid(begins, sizeof(begins), &begin);
95           fprintf(stderr, "[%7d] read: [%s]\n\t'%.*s'\n", expect, begins,
96                   message.mess_len, (char *)message.mess);
97         }
98       }
99       if(jlog_ctx_read_checkpoint(ctx, &end) != 0) {
100         fprintf(stderr, "checkpoint failed: %d %s\n", jlog_ctx_err(ctx), jlog_ctx_err_string(ctx));
101       } else {
102         fprintf(stderr, "\tcheckpointed...\n");
103       }
104     }
105   }
106   jlog_ctx_close(ctx);
107 }
108 int main(int argc, char **argv) {
109   int i;
110 #if _WIN32
111   mem_init();
112 #endif
113   for(i=1; i<argc; i++) {
114     if(!strcmp(argv[i], "init")) {
115       jcreate();
116       exit(0);
117     } else if(!strcmp(argv[i], "write")) {
118       int len;
119       char *message;
120       if(i+2 >= argc) { usage(); exit(-1); }
121       i++;
122       len = atoi(argv[i]);
123       message = malloc(len+1);
124       memset(message, 'X', len-1);
125       message[len-1] = '\n';
126       message[len] = '\0';
127       i++;
128       jopenw(message, atoi(argv[i]));
129       exit(0);
130     } else if(!strcmp(argv[i], "read")) {
131       if(i+1 >= argc) { usage(); exit(-1); }
132       i++;
133       jopenr(SUBSCRIBER, atoi(argv[i]));
134       exit(0);
135     } else {
136       fprintf(stderr, "command '%s' not understood\n", argv[i]);
137       usage();
138     }
139   }
140   return 0;
141 }
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