init: use __log_buf() if we know buf != NULL
[fio.git] / fio.c
CommitLineData
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1/*
2 * fio - the flexible io tester
3 *
4 * Copyright (C) 2005 Jens Axboe <axboe@suse.de>
2e1df07d 5 * Copyright (C) 2006-2012 Jens Axboe <axboe@kernel.dk>
ebac4655 6 *
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7 * The license below covers all files distributed with fio unless otherwise
8 * noted in the file itself.
9 *
ebac4655 10 * This program is free software; you can redistribute it and/or modify
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11 * it under the terms of the GNU General Public License version 2 as
12 * published by the Free Software Foundation.
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13 *
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
18 *
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
fa07eaa6 21 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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22 *
23 */
ebac4655 24#include "fio.h"
d529ee19 25
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26int main(int argc, char *argv[], char *envp[])
27{
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28 int ret = 1;
29
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30 compiletime_assert(TD_NR <= TD_ENG_FLAG_SHIFT, "TD_ENG_FLAG_SHIFT");
31
480b8112 32 if (initialize_fio(envp))
0ad5edcc 33 return 1;
50d16976 34
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35#if !defined(CONFIG_GETTIMEOFDAY) && !defined(CONFIG_CLOCK_GETTIME)
36#error "No available clock source!"
37#endif
38
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39 if (fio_server_create_sk_key())
40 goto done;
41
50d16976 42 if (parse_options(argc, argv))
518a1cf0 43 goto done_key;
50d16976 44
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45 /*
46 * line buffer stdout to avoid output lines from multiple
47 * threads getting mixed
48 */
49 setvbuf(stdout, NULL, _IOLBF, 0);
50
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51 fio_time_init();
52
b9d2f30a 53 if (nr_clients) {
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54 set_genesis_time();
55
b9d2f30a 56 if (fio_start_all_clients())
518a1cf0 57 goto done_key;
af1dc266 58 ret = fio_handle_clients(&fio_client_ops);
b9d2f30a 59 } else
2a2804c9 60 ret = fio_backend(NULL);
af1dc266 61
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62done_key:
63 fio_server_destroy_sk_key();
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64done:
65 deinitialize_fio();
66 return ret;
50d16976 67}