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annotate src/os/unix/ngx_files.c @ 9:6f58641241bb

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nginx-0.0.1-2002-09-07-14:14:25 import
author Igor Sysoev <igor@sysoev.ru>
date Sat, 07 Sep 2002 10:14:25 +0000
parents 708f8bb772ec
children b2e039840718
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62b1a364857c nginx-0.0.1-2002-08-23-20:14:30 import
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1
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708f8bb772ec nginx-0.0.1-2002-09-02-18:48:24 import
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2 #include <ngx_core.h>
708f8bb772ec nginx-0.0.1-2002-09-02-18:48:24 import
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3 #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
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5 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
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6 {
708f8bb772ec nginx-0.0.1-2002-09-02-18:48:24 import
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7 ssize_t n;
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708f8bb772ec nginx-0.0.1-2002-09-02-18:48:24 import
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9 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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11 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
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13 if (n == -1) {
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708f8bb772ec nginx-0.0.1-2002-09-02-18:48:24 import
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14 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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15 return NGX_ERROR;
6f58641241bb nginx-0.0.1-2002-09-07-14:14:25 import
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16 }
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708f8bb772ec nginx-0.0.1-2002-09-02-18:48:24 import
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18 return n;
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62b1a364857c nginx-0.0.1-2002-08-23-20:14:30 import
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19 }
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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21 #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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23 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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24 {
62b1a364857c nginx-0.0.1-2002-08-23-20:14:30 import
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25 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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27 ngx_memzero(&file->iocb, sizeof(iocb));
62b1a364857c nginx-0.0.1-2002-08-23-20:14:30 import
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28 file->iocb.aio_fildes = file->fd;
62b1a364857c nginx-0.0.1-2002-08-23-20:14:30 import
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29 file->iocb.aio_buf = buf;
62b1a364857c nginx-0.0.1-2002-08-23-20:14:30 import
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30 file->iocb.aio_nbytes = size;
62b1a364857c nginx-0.0.1-2002-08-23-20:14:30 import
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31 file->iocb.aio_offset = offset;
62b1a364857c nginx-0.0.1-2002-08-23-20:14:30 import
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32 #if (USE_AIO_KQUEUE)
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33 file->iocb.aio_sigevent.sigev_notify = SIGEV_KEVENT;
62b1a364857c nginx-0.0.1-2002-08-23-20:14:30 import
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34 file->iocb.aio_sigevent.sigev_notify_kqueue = tid->kq;
62b1a364857c nginx-0.0.1-2002-08-23-20:14:30 import
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35 file->iocb.aio_sigevent.sigev_value = (union sigval) file;
62b1a364857c nginx-0.0.1-2002-08-23-20:14:30 import
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36 #endif
62b1a364857c nginx-0.0.1-2002-08-23-20:14:30 import
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37 #if (USE_AIO_SIGNAL)
62b1a364857c nginx-0.0.1-2002-08-23-20:14:30 import
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38 file->iocb.aio_sigevent.sigev_notify = SIGEV_SIGNAL;
62b1a364857c nginx-0.0.1-2002-08-23-20:14:30 import
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39 file->iocb.aio_sigevent.sigev_signo = NGX_SIGAIO;
62b1a364857c nginx-0.0.1-2002-08-23-20:14:30 import
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40 #ifndef __FreeBSD__
62b1a364857c nginx-0.0.1-2002-08-23-20:14:30 import
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41 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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42 #endif
62b1a364857c nginx-0.0.1-2002-08-23-20:14:30 import
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43 #endif
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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45 if (aio_read(&file->iocb) == -1) {
62b1a364857c nginx-0.0.1-2002-08-23-20:14:30 import
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46 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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47 "aio_read() failed");
62b1a364857c nginx-0.0.1-2002-08-23-20:14:30 import
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48 return NGX_ERROR;
62b1a364857c nginx-0.0.1-2002-08-23-20:14:30 import
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49
62b1a364857c nginx-0.0.1-2002-08-23-20:14:30 import
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50 n = aio_error(&file->iocb);
62b1a364857c nginx-0.0.1-2002-08-23-20:14:30 import
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51 if (n == EINPROGRESS)
62b1a364857c nginx-0.0.1-2002-08-23-20:14:30 import
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52 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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54 if (n == -1) {
62b1a364857c nginx-0.0.1-2002-08-23-20:14:30 import
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55 ngx_log_error(NGX_LOG_ERR, file->log, ngx_errno,
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56 "aio_read() failed");
62b1a364857c nginx-0.0.1-2002-08-23-20:14:30 import
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57 return NGX_ERROR;
62b1a364857c nginx-0.0.1-2002-08-23-20:14:30 import
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58 }
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59 }
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62b1a364857c nginx-0.0.1-2002-08-23-20:14:30 import
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61 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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62 "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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64 n = aio_return(&file->iocb);
62b1a364857c nginx-0.0.1-2002-08-23-20:14:30 import
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65 if (n == -1) {
62b1a364857c nginx-0.0.1-2002-08-23-20:14:30 import
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66 ngx_log_error(NGX_LOG_ERR, file->log, ngx_errno,
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67 "aio_read() failed");
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68 return NGX_ERROR;
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69 }
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71 return n;
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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 #endif