File: main.c

package info (click to toggle)
globus-scheduler-event-generator 5.7-3
  • links: PTS, VCS
  • area: main
  • in suites: jessie, jessie-kfreebsd
  • size: 1,848 kB
  • ctags: 297
  • sloc: sh: 11,858; ansic: 2,279; makefile: 225; perl: 91
file content (479 lines) | stat: -rw-r--r-- 12,343 bytes parent folder | download | duplicates (5)
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
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
/*
 * Copyright 1999-2014 University of Chicago
 * 
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * 
 * http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

#include "globus_common.h"
#include "globus_scheduler_event_generator.h"
#include "globus_scheduler_event_generator_app.h"
#include "globus_scheduler_event_generator_stdout.h"

#include <stdio.h>
#include <unistd.h>

static globus_mutex_t shutdown_mutex;
static globus_cond_t shutdown_cond;
static globus_bool_t shutdown_called = GLOBUS_FALSE;
static FILE * directory_write_fh = NULL;
static
globus_result_t
globus_l_directory_write_event_handler(
    void *                              arg,
    const globus_scheduler_event_t *    event);

static
void
globus_l_fault_handler(
    void *                              user_arg,
    globus_result_t                     fault);

static
void
globus_l_seg_sigint_handler(void * arg);

static
void
usage(char * cmd)
{
    printf("Usage: %s [-t timestamp] -s scheduler\n", cmd);
}

#ifndef TARGET_ARCH_WIN32
#define DAEMON_FLAGS "p:b"
#else
#define DAEMON_FLAGS
#endif

int
main(int argc, char *argv[])
{
    int rc;
    char * module = NULL;
    time_t timestamp = 0;
    globus_result_t result = GLOBUS_SUCCESS;
    globus_bool_t background = GLOBUS_FALSE;
    char * directory = NULL;
#ifndef TARGET_ARCH_WIN32
    char * pidfile = NULL;
#endif

    while ((rc = getopt(argc, argv, "hs:t:d:" DAEMON_FLAGS)) != EOF)
    {
        switch (rc)
        {
        case 'h':
            {
                char * exename;
                if ((exename = strrchr(argv[0], '/')) != NULL)
                {
                    exename++;
                }
                else
                {
                    exename = argv[0];
                }

                printf("Usage: %s -s SEG-MODULE [OPTIONS]\n"
"Process LRM events into a common format for use with GRAM\n\n"
"Options:\n"
"   -s LRM                    Parse events for the local resource manager\n"
"                             named by LRM.\n"
"   -t TIMESTAMP              Ignore events that occur prior to TIMESTAMP\n"
"                             in seconds since the epoch\n"
"   -d DIRECTORY              Write log events to files in DIRECTORY named\n"
"                             by their event timestamp (DIRECTORY/YYYYMMDD)\n"
"                             If not present, events will be written to \n"
"                             standard output\n"
#ifndef TARGET_ARCH_WIN32
"   -b                        Run in the background (only if -d used)\n"
"   -p PIDFILE                Write background process PID to PIDFILE\n"
#endif
"\n",
                exename);
            }

            exit(EXIT_SUCCESS);
        case 's':
            module = optarg;
            break;

        case 't':
            rc = sscanf(optarg, "%lu", (unsigned long*) &timestamp);
            if (rc < 1)
            {
                fprintf(stderr, "Invalid timestamp [%s]\n", optarg);
                goto deactivate_error;

            }
            break;

        case 'd':
            directory = optarg;
            break;

#ifndef TARGET_ARCH_WIN32
        case 'p':
            pidfile = optarg;
            break;

        case 'b':
            background = GLOBUS_TRUE;
            break;
#endif

        default:
            fprintf(stderr, "Invalid option: %c\n", (char) rc);
            usage(argv[0]);

            goto deactivate_error;
        }
    }

    if (directory && access(directory, W_OK) != 0)
    {
        fprintf(stderr, "Unable to write to directory %s: %s\n",
            directory, strerror(errno));
        exit(EXIT_FAILURE);
    }
#ifndef TARGET_ARCH_WIN32
    if (background && !directory)
    {
        fprintf(stderr, "Ignoring -b option without -d\n");
    }
    if (background && directory)
    {
        pid_t pid;

        pid = fork();
        if (pid < 0)
        {
            fprintf(stderr, "Error forking: %s\n", strerror(errno));
            exit(EXIT_FAILURE);
        }
        else if (pid > 0)
        {
            if (pidfile != NULL)
            {
                FILE * pidfh = fopen(pidfile, "w");

                if (pidfh == NULL)
                {
                    fprintf(stderr, "Error writing pid to %s: %s\n",
                        pidfile, strerror(errno));
                    kill(pid, SIGTERM);
                    exit(EXIT_FAILURE);
                }
                fprintf(pidfh, "%ld\n", (long) pid);
                fclose(pidfh);
            }
            printf("Running in background (pid=%ld)\n", (long) pid);
            exit(EXIT_SUCCESS);
        }
        else
        {
            FILE * tmp;
            if ((tmp = freopen("/dev/null", "r", stdin)) == NULL)
            {
                fclose(stdin);
            }
            if ((tmp = freopen("/dev/null", "a", stdout)) == NULL)
            {
                fclose(stdout);
            }
            if ((tmp = freopen("/dev/null", "a", stderr)) == NULL)
            {
                fclose(stderr);
            }
            setsid();
        }
    }
#endif
    globus_thread_set_model(GLOBUS_THREAD_MODEL_NONE);

    rc = globus_module_activate(GLOBUS_COMMON_MODULE);

    if (rc != 0)
    {
        goto error;
    }

    rc = globus_module_activate(GLOBUS_SCHEDULER_EVENT_GENERATOR_MODULE);

    if (rc != 0)
    {
        goto deactivate_error;
    }

    if (directory)
    {
        globus_callback_register_signal_handler(
            SIGINT,
            GLOBUS_FALSE,
            globus_l_seg_sigint_handler,
            NULL);

        result = globus_scheduler_event_generator_set_event_handler(
                globus_l_directory_write_event_handler,
                directory);
        if (result != GLOBUS_SUCCESS)
        {
            goto deactivate_error;
        }
    }
    else
    {
        rc = globus_module_activate(GLOBUS_SCHEDULER_EVENT_GENERATOR_STDOUT_MODULE);

        result = globus_scheduler_event_generator_set_fault_handler(
                globus_l_fault_handler,
                NULL);

        if (result != GLOBUS_SUCCESS)
        {
            goto deactivate_error;
        }
        result = globus_scheduler_event_generator_set_event_handler(
                globus_scheduler_event_generator_stdout_handler,
                NULL);
        if (result != GLOBUS_SUCCESS)
        {
            goto deactivate_error;
        }
    }

    if (timestamp != 0)
    {
        result = globus_scheduler_event_generator_set_timestamp(timestamp);

        if (result != GLOBUS_SUCCESS)
        {
            goto deactivate_error;
        }
    }

    if (module == NULL)
    {
        fprintf(stderr, "Error: no scheduler specified\n");

        usage(argv[0]);

        goto deactivate_error;
    }
    else
    {
        result = globus_scheduler_event_generator_load_module(
                module);

        if (result != GLOBUS_SUCCESS)
        {
            goto deactivate_error;
        }
    }

    globus_mutex_lock(&shutdown_mutex);

    while (! shutdown_called)
    {
        globus_cond_wait(&shutdown_cond, &shutdown_mutex);
    }

    globus_mutex_unlock(&shutdown_mutex);
    if (directory_write_fh)
    {
        fclose(directory_write_fh);
    }

    globus_module_deactivate_all();

    return 0;

deactivate_error:
    if (result != GLOBUS_SUCCESS)
    {
        fprintf(stderr,
                "%s\n",
                globus_object_printable_to_string(
                        globus_error_peek(result)));
    }
    globus_module_deactivate_all();
error:
    return 1;
}
/* main() */

static
void
globus_l_seg_sigint_handler(void * arg)
{
    globus_mutex_lock(&shutdown_mutex);
    shutdown_called = GLOBUS_TRUE;
    globus_cond_signal(&shutdown_cond);
    globus_mutex_unlock(&shutdown_mutex);
}
/* globus_l_seg_sigint_handler() */

static
void
globus_l_fault_handler(
    void *                              user_arg,
    globus_result_t                     fault)
{
    globus_object_t *                   err = NULL;

    if (fault != GLOBUS_SUCCESS)
    {
        err = globus_error_peek(fault);
    }

    if (! globus_error_match(err, GLOBUS_XIO_MODULE, GLOBUS_XIO_ERROR_CANCELED))
    {
        fprintf(stderr, "Fault: %s\n",
                globus_object_printable_to_string(globus_error_peek(fault)));
    }

    globus_mutex_lock(&shutdown_mutex);
    shutdown_called = GLOBUS_TRUE;
    globus_cond_signal(&shutdown_cond);
    globus_mutex_unlock(&shutdown_mutex);
}
/* globus_l_fault_handler() */

static
globus_result_t
globus_l_directory_write_event_handler(
    void *                              arg,
    const globus_scheduler_event_t *    event)
{
    char *                              directory = arg;
    static char *                       last_fn = NULL;
    static char *                       this_fn = NULL;
    struct tm *                         tm;

    tm = gmtime(&event->timestamp);

    if (tm == NULL)
    {
        /* Unrepresentable time */
        goto failure;
    }

    if (last_fn == NULL)
    {
        /* First time through */
        last_fn = globus_common_create_string(
                "%s/%04d%02d%02d",
                directory,
                tm->tm_year + 1900,
                tm->tm_mon + 1,
                tm->tm_mday);
        if (!last_fn)
        {
            goto failure;
        }
    }

    if (this_fn == NULL)
    {
        /* First time through */
        this_fn = globus_common_create_string(
                "%s/%04d%02d%02d",
                directory,
                tm->tm_year + 1900,
                tm->tm_mon + 1,
                tm->tm_mday);
        if (!this_fn)
        {
            goto failure;
        }
    }
    else
    {
        sprintf(this_fn,
                "%s/%04d%02d%02d",
                directory,
                tm->tm_year + 1900,
                tm->tm_mon + 1,
                tm->tm_mday);
    }

    if (strcmp(last_fn, this_fn) != 0)
    {
        if (directory_write_fh)
        {
            fclose(directory_write_fh);
            directory_write_fh = NULL;
        }
        strcpy(last_fn, this_fn);
    }

    if (directory_write_fh == NULL)
    {
        directory_write_fh = fopen(this_fn, "a");
        setvbuf(directory_write_fh, NULL, _IOLBF, 1024);
    }

    switch (event->event_type)
    {
    case GLOBUS_SCHEDULER_EVENT_PENDING:
        fprintf(directory_write_fh,
                "001;%lu;%s;%d;%d\n",
                event->timestamp,
                event->job_id,
                GLOBUS_GRAM_PROTOCOL_JOB_STATE_PENDING,
                0);
        break;
    case GLOBUS_SCHEDULER_EVENT_ACTIVE:
        fprintf(directory_write_fh,
                "001;%lu;%s;%d;%d\n",
                event->timestamp,
                event->job_id,
                GLOBUS_GRAM_PROTOCOL_JOB_STATE_ACTIVE,
                0);
        break;
    case GLOBUS_SCHEDULER_EVENT_FAILED:
        fprintf(directory_write_fh,
                "001;%lu;%s;%d;%d\n",
                event->timestamp,
                event->job_id,
                GLOBUS_GRAM_PROTOCOL_JOB_STATE_FAILED,
                event->failure_code);
        break;
    case GLOBUS_SCHEDULER_EVENT_DONE:
        fprintf(directory_write_fh,
                "001;%lu;%s;%d;%d\n",
                event->timestamp,
                event->job_id,
                GLOBUS_GRAM_PROTOCOL_JOB_STATE_DONE,
                event->exit_code);
        break;
    case GLOBUS_SCHEDULER_EVENT_RAW:
        fprintf(directory_write_fh, "%s", event->raw_event);
        break;
    }
    return GLOBUS_SUCCESS;

failure:
    if (directory_write_fh)
    {
        fclose(directory_write_fh);
        directory_write_fh = NULL;
    }
    globus_mutex_lock(&shutdown_mutex);
    shutdown_called = GLOBUS_TRUE;
    globus_cond_signal(&shutdown_cond);
    globus_mutex_unlock(&shutdown_mutex);

    return GLOBUS_FAILURE;
}
/* globus_l_directory_write_event_handler() */