Mercurial > hg > nginx
annotate src/os/unix/ngx_file.c @ 5:62b1a364857c
nginx-0.0.1-2002-08-23-20:14:30 import
author | Igor Sysoev <igor@sysoev.ru> |
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date | Fri, 23 Aug 2002 16:14:30 +0000 |
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children | 669801705ab1 |
rev | line source |
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5
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nginx-0.0.1-2002-08-23-20:14:30 import
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1 |
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2 |
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3 ssize_t ngx_read_file(ngx_file_t file, char *buf, size_t size) |
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4 { |
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5 read(); |
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6 } |
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7 |
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8 #if 0 |
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9 |
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10 ssize_t ngx_read_file(ngx_file_t *file, char *buf, size_t size, off_t offset) |
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11 { |
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12 if (!file->read->ready) { |
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13 |
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14 ngx_memzero(&file->iocb, sizeof(iocb)); |
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15 file->iocb.aio_fildes = file->fd; |
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16 file->iocb.aio_buf = buf; |
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17 file->iocb.aio_nbytes = size; |
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18 file->iocb.aio_offset = offset; |
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19 #if (USE_AIO_KQUEUE) |
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20 file->iocb.aio_sigevent.sigev_notify = SIGEV_KEVENT; |
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21 file->iocb.aio_sigevent.sigev_notify_kqueue = tid->kq; |
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22 file->iocb.aio_sigevent.sigev_value = (union sigval) file; |
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23 #endif |
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24 #if (USE_AIO_SIGNAL) |
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25 file->iocb.aio_sigevent.sigev_notify = SIGEV_SIGNAL; |
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26 file->iocb.aio_sigevent.sigev_signo = NGX_SIGAIO; |
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27 #ifndef __FreeBSD__ |
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28 file->iocb.aio_sigevent.sigev_value.sival_ptr = file; |
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29 #endif |
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30 #endif |
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31 |
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32 if (aio_read(&file->iocb) == -1) { |
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33 ngx_log_error(NGX_LOG_ERR, file->log, ngx_errno, |
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34 "aio_read() failed"); |
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35 return NGX_ERROR; |
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36 |
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37 n = aio_error(&file->iocb); |
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38 if (n == EINPROGRESS) |
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39 return NGX_AGAIN; |
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40 |
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41 if (n == -1) { |
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42 ngx_log_error(NGX_LOG_ERR, file->log, ngx_errno, |
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43 "aio_read() failed"); |
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44 return NGX_ERROR; |
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45 } |
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46 } |
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47 |
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48 ngx_assert(file->iocb.aio_buf == buf), return NGX_ERROR, |
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49 "ngx_aio_read_file: another buffer is passed"); |
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50 |
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51 n = aio_return(&file->iocb); |
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52 if (n == -1) { |
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53 ngx_log_error(NGX_LOG_ERR, file->log, ngx_errno, |
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54 "aio_read() failed"); |
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55 return NGX_ERROR; |
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56 } |
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57 |
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58 return n; |
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59 } |
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60 |
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61 #endif |