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annotate src/os/unix/ngx_file.c @ 5:62b1a364857c

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nginx-0.0.1-2002-08-23-20:14:30 import
author Igor Sysoev <igor@sysoev.ru>
date Fri, 23 Aug 2002 16:14:30 +0000
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children 669801705ab1
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62b1a364857c nginx-0.0.1-2002-08-23-20:14:30 import
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1
62b1a364857c nginx-0.0.1-2002-08-23-20:14:30 import
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62b1a364857c nginx-0.0.1-2002-08-23-20:14:30 import
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3 ssize_t ngx_read_file(ngx_file_t file, char *buf, size_t size)
62b1a364857c nginx-0.0.1-2002-08-23-20:14:30 import
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4 {
62b1a364857c nginx-0.0.1-2002-08-23-20:14:30 import
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5 read();
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6 }
62b1a364857c nginx-0.0.1-2002-08-23-20:14:30 import
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62b1a364857c nginx-0.0.1-2002-08-23-20:14:30 import
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8 #if 0
62b1a364857c nginx-0.0.1-2002-08-23-20:14:30 import
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62b1a364857c nginx-0.0.1-2002-08-23-20:14:30 import
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10 ssize_t ngx_read_file(ngx_file_t *file, char *buf, size_t size, off_t offset)
62b1a364857c nginx-0.0.1-2002-08-23-20:14:30 import
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11 {
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12 if (!file->read->ready) {
62b1a364857c nginx-0.0.1-2002-08-23-20:14:30 import
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13
62b1a364857c nginx-0.0.1-2002-08-23-20:14:30 import
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14 ngx_memzero(&file->iocb, sizeof(iocb));
62b1a364857c nginx-0.0.1-2002-08-23-20:14:30 import
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15 file->iocb.aio_fildes = file->fd;
62b1a364857c nginx-0.0.1-2002-08-23-20:14:30 import
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16 file->iocb.aio_buf = buf;
62b1a364857c nginx-0.0.1-2002-08-23-20:14:30 import
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17 file->iocb.aio_nbytes = size;
62b1a364857c nginx-0.0.1-2002-08-23-20:14:30 import
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18 file->iocb.aio_offset = offset;
62b1a364857c nginx-0.0.1-2002-08-23-20:14:30 import
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19 #if (USE_AIO_KQUEUE)
62b1a364857c nginx-0.0.1-2002-08-23-20:14:30 import
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20 file->iocb.aio_sigevent.sigev_notify = SIGEV_KEVENT;
62b1a364857c nginx-0.0.1-2002-08-23-20:14:30 import
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21 file->iocb.aio_sigevent.sigev_notify_kqueue = tid->kq;
62b1a364857c nginx-0.0.1-2002-08-23-20:14:30 import
Igor Sysoev <igor@sysoev.ru>
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22 file->iocb.aio_sigevent.sigev_value = (union sigval) file;
62b1a364857c nginx-0.0.1-2002-08-23-20:14:30 import
Igor Sysoev <igor@sysoev.ru>
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23 #endif
62b1a364857c nginx-0.0.1-2002-08-23-20:14:30 import
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24 #if (USE_AIO_SIGNAL)
62b1a364857c nginx-0.0.1-2002-08-23-20:14:30 import
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25 file->iocb.aio_sigevent.sigev_notify = SIGEV_SIGNAL;
62b1a364857c nginx-0.0.1-2002-08-23-20:14:30 import
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26 file->iocb.aio_sigevent.sigev_signo = NGX_SIGAIO;
62b1a364857c nginx-0.0.1-2002-08-23-20:14:30 import
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27 #ifndef __FreeBSD__
62b1a364857c nginx-0.0.1-2002-08-23-20:14:30 import
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28 file->iocb.aio_sigevent.sigev_value.sival_ptr = file;
62b1a364857c nginx-0.0.1-2002-08-23-20:14:30 import
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29 #endif
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30 #endif
62b1a364857c nginx-0.0.1-2002-08-23-20:14:30 import
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31
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32 if (aio_read(&file->iocb) == -1) {
62b1a364857c nginx-0.0.1-2002-08-23-20:14:30 import
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33 ngx_log_error(NGX_LOG_ERR, file->log, ngx_errno,
62b1a364857c nginx-0.0.1-2002-08-23-20:14:30 import
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34 "aio_read() failed");
62b1a364857c nginx-0.0.1-2002-08-23-20:14:30 import
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35 return NGX_ERROR;
62b1a364857c nginx-0.0.1-2002-08-23-20:14:30 import
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36
62b1a364857c nginx-0.0.1-2002-08-23-20:14:30 import
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37 n = aio_error(&file->iocb);
62b1a364857c nginx-0.0.1-2002-08-23-20:14:30 import
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38 if (n == EINPROGRESS)
62b1a364857c nginx-0.0.1-2002-08-23-20:14:30 import
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39 return NGX_AGAIN;
62b1a364857c nginx-0.0.1-2002-08-23-20:14:30 import
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40
62b1a364857c nginx-0.0.1-2002-08-23-20:14:30 import
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41 if (n == -1) {
62b1a364857c nginx-0.0.1-2002-08-23-20:14:30 import
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42 ngx_log_error(NGX_LOG_ERR, file->log, ngx_errno,
62b1a364857c nginx-0.0.1-2002-08-23-20:14:30 import
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43 "aio_read() failed");
62b1a364857c nginx-0.0.1-2002-08-23-20:14:30 import
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44 return NGX_ERROR;
62b1a364857c nginx-0.0.1-2002-08-23-20:14:30 import
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45 }
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46 }
62b1a364857c nginx-0.0.1-2002-08-23-20:14:30 import
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47
62b1a364857c nginx-0.0.1-2002-08-23-20:14:30 import
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48 ngx_assert(file->iocb.aio_buf == buf), return NGX_ERROR,
62b1a364857c nginx-0.0.1-2002-08-23-20:14:30 import
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49 "ngx_aio_read_file: another buffer is passed");
62b1a364857c nginx-0.0.1-2002-08-23-20:14:30 import
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50
62b1a364857c nginx-0.0.1-2002-08-23-20:14:30 import
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51 n = aio_return(&file->iocb);
62b1a364857c nginx-0.0.1-2002-08-23-20:14:30 import
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52 if (n == -1) {
62b1a364857c nginx-0.0.1-2002-08-23-20:14:30 import
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53 ngx_log_error(NGX_LOG_ERR, file->log, ngx_errno,
62b1a364857c nginx-0.0.1-2002-08-23-20:14:30 import
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54 "aio_read() failed");
62b1a364857c nginx-0.0.1-2002-08-23-20:14:30 import
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55 return NGX_ERROR;
62b1a364857c nginx-0.0.1-2002-08-23-20:14:30 import
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56 }
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57
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58 return n;
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59 }
62b1a364857c nginx-0.0.1-2002-08-23-20:14:30 import
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60
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61 #endif