1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
|
/*
* asapo.c
*
* ASAP::O data interface
*
* Copyright © 2021 Deutsches Elektronen-Synchrotron DESY,
* a research centre of the Helmholtz Association.
*
* Authors:
* 2021 Thomas White <taw@physics.org>
*
* This file is part of CrystFEL.
*
* CrystFEL is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* CrystFEL is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with CrystFEL. If not, see <http://www.gnu.org/licenses/>.
*
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <stdlib.h>
#include <stdio.h>
#include <stdint.h>
#include <assert.h>
#include <unistd.h>
#include <asapo/consumer_c.h>
#include <image.h>
#include <utils.h>
#include "im-asapo.h"
#include "datatemplate_priv.h"
struct im_asapo
{
AsapoConsumerHandle consumer;
AsapoStringHandle group_id;
};
static void show_asapo_error(const char *msg, const AsapoErrorHandle err)
{
char buf[1024];
asapo_error_explain(err, buf, sizeof(buf));
ERROR("%s: %s\n", msg, buf);
}
char *im_asapo_make_unique_group_id(const char *endpoint,
const char *token)
{
AsapoConsumerHandle consumer;
AsapoSourceCredentialsHandle cred;
AsapoStringHandle group_id;
AsapoErrorHandle err = asapo_new_handle();
cred = asapo_create_source_credentials(kProcessed, "", "", "", token);
consumer = asapo_create_consumer(endpoint, "", 0, cred, &err);
asapo_free_handle(&cred);
if ( asapo_is_error(err) ) {
show_asapo_error("Cannot create temporary ASAP::O consumer", err);
asapo_free_handle(&consumer);
return NULL;
}
group_id = asapo_consumer_generate_new_group_id(consumer, &err);
asapo_free_handle(&consumer);
if ( asapo_is_error(err) ) {
show_asapo_error("Cannot create ASAP::O group ID", err);
return NULL;
}
return strdup(asapo_string_c_str(group_id));
}
struct im_asapo *im_asapo_connect(const char *endpoint,
const char *token,
const char *beamtime,
const char *group_id,
const char *data_source)
{
struct im_asapo *a;
AsapoSourceCredentialsHandle cred;
AsapoErrorHandle err = asapo_new_handle();
a = malloc(sizeof(struct im_asapo));
if ( a == NULL ) return NULL;
cred = asapo_create_source_credentials(kProcessed, beamtime, "",
data_source, token);
a->consumer = asapo_create_consumer(endpoint, "", 0, cred, &err);
asapo_free_handle(&cred);
if ( asapo_is_error(err) ) {
show_asapo_error("Cannot create ASAP::O consumer", err);
free(a);
return NULL;
}
asapo_consumer_set_timeout(a->consumer, 1000);
a->group_id = asapo_string_from_c_str(group_id);
return a;
}
void *im_asapo_fetch(struct im_asapo *a, size_t *pdata_size)
{
void *data_copy;
AsapoMessageMetaHandle meta = asapo_new_handle();
AsapoMessageDataHandle data = asapo_new_handle();
AsapoErrorHandle err = asapo_new_handle();
uint64_t msg_size;
asapo_consumer_get_next(a->consumer, a->group_id, &meta, &data,
"default", &err);
if ( asapo_is_error(err) ) {
show_asapo_error("Couldn't get next ASAP::O record", err);
return NULL;
}
msg_size = asapo_message_meta_get_size(meta);
STATUS("ASAP::O ID: %llu\n", asapo_message_meta_get_id(meta));
STATUS("ASAP::O filename: %s\n", asapo_message_meta_get_name(meta));
STATUS("ASAP::O size: %lli\n", (long long int)msg_size);
data_copy = malloc(msg_size);
if ( data_copy == NULL ) return NULL;
memcpy(data_copy, asapo_message_data_get_as_chars(data), msg_size);
asapo_free_handle(&err);
asapo_free_handle(&meta);
asapo_free_handle(&data);
return data_copy;
}
void im_asapo_shutdown(struct im_asapo *a)
{
if ( a == NULL ) return;
asapo_free_handle(&a->consumer);
asapo_free_handle(&a->group_id);
free(a);
}
|
