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annotate src/os/unix/ngx_files.c @ 35:79c1fce18e71

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nginx-0.0.1-2002-12-21-20:14:50 import
author Igor Sysoev <igor@sysoev.ru>
date Sat, 21 Dec 2002 17:14:50 +0000
parents b2e039840718
children 4534060fde92
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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62b1a364857c nginx-0.0.1-2002-08-23-20:14:30 import
Igor Sysoev <igor@sysoev.ru>
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b2e039840718 nginx-0.0.1-2002-12-19-20:49:51 import
Igor Sysoev <igor@sysoev.ru>
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2 #include <ngx_config.h>
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708f8bb772ec nginx-0.0.1-2002-09-02-18:48:24 import
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3 #include <ngx_core.h>
708f8bb772ec nginx-0.0.1-2002-09-02-18:48:24 import
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4 #include <ngx_file.h>
708f8bb772ec nginx-0.0.1-2002-09-02-18:48:24 import
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708f8bb772ec nginx-0.0.1-2002-09-02-18:48:24 import
Igor Sysoev <igor@sysoev.ru>
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6 ssize_t ngx_read_file(ngx_file_t *file, char *buf, size_t size, off_t offset)
708f8bb772ec nginx-0.0.1-2002-09-02-18:48:24 import
Igor Sysoev <igor@sysoev.ru>
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7 {
708f8bb772ec nginx-0.0.1-2002-09-02-18:48:24 import
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8 ssize_t n;
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62b1a364857c nginx-0.0.1-2002-08-23-20:14:30 import
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708f8bb772ec nginx-0.0.1-2002-09-02-18:48:24 import
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10 ngx_log_debug(file->log, "read: %x, %d, %qd" _ buf _ size _ offset);
708f8bb772ec nginx-0.0.1-2002-09-02-18:48:24 import
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708f8bb772ec nginx-0.0.1-2002-09-02-18:48:24 import
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12 n = pread(file->fd, buf, size, offset);
708f8bb772ec nginx-0.0.1-2002-09-02-18:48:24 import
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6f58641241bb nginx-0.0.1-2002-09-07-14:14:25 import
Igor Sysoev <igor@sysoev.ru>
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14 if (n == -1) {
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708f8bb772ec nginx-0.0.1-2002-09-02-18:48:24 import
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15 ngx_log_error(NGX_LOG_ERR, file->log, ngx_errno, "read() failed");
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6f58641241bb nginx-0.0.1-2002-09-07-14:14:25 import
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16 return NGX_ERROR;
6f58641241bb nginx-0.0.1-2002-09-07-14:14:25 import
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17 }
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79c1fce18e71 nginx-0.0.1-2002-12-21-20:14:50 import
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19 file->offset += n;
79c1fce18e71 nginx-0.0.1-2002-12-21-20:14:50 import
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20
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708f8bb772ec nginx-0.0.1-2002-09-02-18:48:24 import
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21 return n;
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62b1a364857c nginx-0.0.1-2002-08-23-20:14:30 import
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22 }
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62b1a364857c nginx-0.0.1-2002-08-23-20:14:30 import
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24 #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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26 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
Igor Sysoev <igor@sysoev.ru>
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27 {
62b1a364857c nginx-0.0.1-2002-08-23-20:14:30 import
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28 if (!file->read->ready) {
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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30 ngx_memzero(&file->iocb, sizeof(iocb));
62b1a364857c nginx-0.0.1-2002-08-23-20:14:30 import
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31 file->iocb.aio_fildes = file->fd;
62b1a364857c nginx-0.0.1-2002-08-23-20:14:30 import
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32 file->iocb.aio_buf = buf;
62b1a364857c nginx-0.0.1-2002-08-23-20:14:30 import
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33 file->iocb.aio_nbytes = size;
62b1a364857c nginx-0.0.1-2002-08-23-20:14:30 import
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34 file->iocb.aio_offset = offset;
62b1a364857c nginx-0.0.1-2002-08-23-20:14:30 import
Igor Sysoev <igor@sysoev.ru>
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35 #if (USE_AIO_KQUEUE)
62b1a364857c nginx-0.0.1-2002-08-23-20:14:30 import
Igor Sysoev <igor@sysoev.ru>
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36 file->iocb.aio_sigevent.sigev_notify = SIGEV_KEVENT;
62b1a364857c nginx-0.0.1-2002-08-23-20:14:30 import
Igor Sysoev <igor@sysoev.ru>
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37 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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38 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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39 #endif
62b1a364857c nginx-0.0.1-2002-08-23-20:14:30 import
Igor Sysoev <igor@sysoev.ru>
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40 #if (USE_AIO_SIGNAL)
62b1a364857c nginx-0.0.1-2002-08-23-20:14:30 import
Igor Sysoev <igor@sysoev.ru>
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41 file->iocb.aio_sigevent.sigev_notify = SIGEV_SIGNAL;
62b1a364857c nginx-0.0.1-2002-08-23-20:14:30 import
Igor Sysoev <igor@sysoev.ru>
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42 file->iocb.aio_sigevent.sigev_signo = NGX_SIGAIO;
62b1a364857c nginx-0.0.1-2002-08-23-20:14:30 import
Igor Sysoev <igor@sysoev.ru>
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43 #ifndef __FreeBSD__
62b1a364857c nginx-0.0.1-2002-08-23-20:14:30 import
Igor Sysoev <igor@sysoev.ru>
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44 file->iocb.aio_sigevent.sigev_value.sival_ptr = file;
62b1a364857c nginx-0.0.1-2002-08-23-20:14:30 import
Igor Sysoev <igor@sysoev.ru>
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45 #endif
62b1a364857c nginx-0.0.1-2002-08-23-20:14:30 import
Igor Sysoev <igor@sysoev.ru>
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46 #endif
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 if (aio_read(&file->iocb) == -1) {
62b1a364857c nginx-0.0.1-2002-08-23-20:14:30 import
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49 ngx_log_error(NGX_LOG_ERR, file->log, ngx_errno,
62b1a364857c nginx-0.0.1-2002-08-23-20:14:30 import
Igor Sysoev <igor@sysoev.ru>
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50 "aio_read() failed");
62b1a364857c nginx-0.0.1-2002-08-23-20:14:30 import
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51 return NGX_ERROR;
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
Igor Sysoev <igor@sysoev.ru>
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53 n = aio_error(&file->iocb);
62b1a364857c nginx-0.0.1-2002-08-23-20:14:30 import
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54 if (n == EINPROGRESS)
62b1a364857c nginx-0.0.1-2002-08-23-20:14:30 import
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55 return NGX_AGAIN;
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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57 if (n == -1) {
62b1a364857c nginx-0.0.1-2002-08-23-20:14:30 import
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58 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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59 "aio_read() failed");
62b1a364857c nginx-0.0.1-2002-08-23-20:14:30 import
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60 return NGX_ERROR;
62b1a364857c nginx-0.0.1-2002-08-23-20:14:30 import
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61 }
62b1a364857c nginx-0.0.1-2002-08-23-20:14:30 import
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62 }
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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64 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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65 "ngx_aio_read_file: another buffer is passed");
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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67 n = aio_return(&file->iocb);
62b1a364857c nginx-0.0.1-2002-08-23-20:14:30 import
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68 if (n == -1) {
62b1a364857c nginx-0.0.1-2002-08-23-20:14:30 import
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69 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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70 "aio_read() failed");
62b1a364857c nginx-0.0.1-2002-08-23-20:14:30 import
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71 return NGX_ERROR;
62b1a364857c nginx-0.0.1-2002-08-23-20:14:30 import
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72 }
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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74 return n;
62b1a364857c nginx-0.0.1-2002-08-23-20:14:30 import
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75 }
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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77 #endif