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annotate src/os/unix/ngx_files.c @ 8:708f8bb772ec

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nginx-0.0.1-2002-09-02-18:48:24 import
author Igor Sysoev <igor@sysoev.ru>
date Mon, 02 Sep 2002 14:48:24 +0000
parents src/os/unix/ngx_file.c@669801705ab1
children 6f58641241bb
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
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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);
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12
708f8bb772ec nginx-0.0.1-2002-09-02-18:48:24 import
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13 if (n == NGX_ERROR)
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");
708f8bb772ec nginx-0.0.1-2002-09-02-18:48:24 import
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15
708f8bb772ec nginx-0.0.1-2002-09-02-18:48:24 import
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16 return n;
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62b1a364857c nginx-0.0.1-2002-08-23-20:14:30 import
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17 }
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62b1a364857c nginx-0.0.1-2002-08-23-20:14:30 import
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19 #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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21 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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22 {
62b1a364857c nginx-0.0.1-2002-08-23-20:14:30 import
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23 if (!file->read->ready) {
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62b1a364857c nginx-0.0.1-2002-08-23-20:14:30 import
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25 ngx_memzero(&file->iocb, sizeof(iocb));
62b1a364857c nginx-0.0.1-2002-08-23-20:14:30 import
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26 file->iocb.aio_fildes = file->fd;
62b1a364857c nginx-0.0.1-2002-08-23-20:14:30 import
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27 file->iocb.aio_buf = buf;
62b1a364857c nginx-0.0.1-2002-08-23-20:14:30 import
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28 file->iocb.aio_nbytes = size;
62b1a364857c nginx-0.0.1-2002-08-23-20:14:30 import
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29 file->iocb.aio_offset = offset;
62b1a364857c nginx-0.0.1-2002-08-23-20:14:30 import
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30 #if (USE_AIO_KQUEUE)
62b1a364857c nginx-0.0.1-2002-08-23-20:14:30 import
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31 file->iocb.aio_sigevent.sigev_notify = SIGEV_KEVENT;
62b1a364857c nginx-0.0.1-2002-08-23-20:14:30 import
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32 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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33 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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34 #endif
62b1a364857c nginx-0.0.1-2002-08-23-20:14:30 import
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35 #if (USE_AIO_SIGNAL)
62b1a364857c nginx-0.0.1-2002-08-23-20:14:30 import
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36 file->iocb.aio_sigevent.sigev_notify = SIGEV_SIGNAL;
62b1a364857c nginx-0.0.1-2002-08-23-20:14:30 import
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37 file->iocb.aio_sigevent.sigev_signo = NGX_SIGAIO;
62b1a364857c nginx-0.0.1-2002-08-23-20:14:30 import
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38 #ifndef __FreeBSD__
62b1a364857c nginx-0.0.1-2002-08-23-20:14:30 import
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39 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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40 #endif
62b1a364857c nginx-0.0.1-2002-08-23-20:14:30 import
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41 #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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43 if (aio_read(&file->iocb) == -1) {
62b1a364857c nginx-0.0.1-2002-08-23-20:14:30 import
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44 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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45 "aio_read() failed");
62b1a364857c nginx-0.0.1-2002-08-23-20:14:30 import
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46 return NGX_ERROR;
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 n = aio_error(&file->iocb);
62b1a364857c nginx-0.0.1-2002-08-23-20:14:30 import
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49 if (n == EINPROGRESS)
62b1a364857c nginx-0.0.1-2002-08-23-20:14:30 import
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50 return NGX_AGAIN;
62b1a364857c nginx-0.0.1-2002-08-23-20:14:30 import
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51
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;
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56 }
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57 }
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62b1a364857c nginx-0.0.1-2002-08-23-20:14:30 import
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59 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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60 "ngx_aio_read_file: another buffer is passed");
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 n = aio_return(&file->iocb);
62b1a364857c nginx-0.0.1-2002-08-23-20:14:30 import
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63 if (n == -1) {
62b1a364857c nginx-0.0.1-2002-08-23-20:14:30 import
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64 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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65 "aio_read() failed");
62b1a364857c nginx-0.0.1-2002-08-23-20:14:30 import
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66 return NGX_ERROR;
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67 }
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68
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69 return n;
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70 }
62b1a364857c nginx-0.0.1-2002-08-23-20:14:30 import
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72 #endif