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annotate src/os/win32/ngx_sendfile.c @ 0:4eff17414a43

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nginx-0.0.1-2002-08-06-20:39:45 import The first code that uses "ngx_" prefix, the previous one used "gx_" prefix. At that point the code is not yet usable. The first draft ideas are dated back to 23.10.2001.
author Igor Sysoev <igor@sysoev.ru>
date Tue, 06 Aug 2002 16:39:45 +0000
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children 34a521b1a148
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4eff17414a43 nginx-0.0.1-2002-08-06-20:39:45 import
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1
4eff17414a43 nginx-0.0.1-2002-08-06-20:39:45 import
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2 #include <ngx_config.h>
4eff17414a43 nginx-0.0.1-2002-08-06-20:39:45 import
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3 #include <ngx_types.h>
4eff17414a43 nginx-0.0.1-2002-08-06-20:39:45 import
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4 #include <ngx_errno.h>
4eff17414a43 nginx-0.0.1-2002-08-06-20:39:45 import
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5 #include <ngx_log.h>
4eff17414a43 nginx-0.0.1-2002-08-06-20:39:45 import
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6 #include <ngx_sendv.h>
4eff17414a43 nginx-0.0.1-2002-08-06-20:39:45 import
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7 #include <ngx_sendfile.h>
4eff17414a43 nginx-0.0.1-2002-08-06-20:39:45 import
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8
4eff17414a43 nginx-0.0.1-2002-08-06-20:39:45 import
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9 /*
4eff17414a43 nginx-0.0.1-2002-08-06-20:39:45 import
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10 TODO:
4eff17414a43 nginx-0.0.1-2002-08-06-20:39:45 import
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11 various flags
4eff17414a43 nginx-0.0.1-2002-08-06-20:39:45 import
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12 TransmitPackets
4eff17414a43 nginx-0.0.1-2002-08-06-20:39:45 import
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13 */
4eff17414a43 nginx-0.0.1-2002-08-06-20:39:45 import
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14
4eff17414a43 nginx-0.0.1-2002-08-06-20:39:45 import
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15 /*
4eff17414a43 nginx-0.0.1-2002-08-06-20:39:45 import
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16 returns
4eff17414a43 nginx-0.0.1-2002-08-06-20:39:45 import
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17 0 done
4eff17414a43 nginx-0.0.1-2002-08-06-20:39:45 import
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18 -1 error
4eff17414a43 nginx-0.0.1-2002-08-06-20:39:45 import
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19 */
4eff17414a43 nginx-0.0.1-2002-08-06-20:39:45 import
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20
4eff17414a43 nginx-0.0.1-2002-08-06-20:39:45 import
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21 #if (HAVE_WIN32_TRANSMITFILE)
4eff17414a43 nginx-0.0.1-2002-08-06-20:39:45 import
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22
4eff17414a43 nginx-0.0.1-2002-08-06-20:39:45 import
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23 int ngx_sendfile(ngx_socket_t s,
4eff17414a43 nginx-0.0.1-2002-08-06-20:39:45 import
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24 ngx_iovec_t *headers, int hdr_cnt,
4eff17414a43 nginx-0.0.1-2002-08-06-20:39:45 import
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25 ngx_file_t fd, off_t offset, size_t nbytes,
4eff17414a43 nginx-0.0.1-2002-08-06-20:39:45 import
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26 ngx_iovec_t *trailers, int trl_cnt,
4eff17414a43 nginx-0.0.1-2002-08-06-20:39:45 import
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27 off_t *sent,
4eff17414a43 nginx-0.0.1-2002-08-06-20:39:45 import
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28 ngx_log_t *log)
4eff17414a43 nginx-0.0.1-2002-08-06-20:39:45 import
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29 {
4eff17414a43 nginx-0.0.1-2002-08-06-20:39:45 import
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30 int tfrc, rc;
4eff17414a43 nginx-0.0.1-2002-08-06-20:39:45 import
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31 ngx_err_t tf_err, err;
4eff17414a43 nginx-0.0.1-2002-08-06-20:39:45 import
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32 OVERLAPPED olp;
4eff17414a43 nginx-0.0.1-2002-08-06-20:39:45 import
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33 TRANSMIT_FILE_BUFFERS tfb, *ptfb;
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34
4eff17414a43 nginx-0.0.1-2002-08-06-20:39:45 import
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35 tf_err = 0;
4eff17414a43 nginx-0.0.1-2002-08-06-20:39:45 import
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36 err = 0;
4eff17414a43 nginx-0.0.1-2002-08-06-20:39:45 import
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37
4eff17414a43 nginx-0.0.1-2002-08-06-20:39:45 import
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38 olp.Internal = 0;
4eff17414a43 nginx-0.0.1-2002-08-06-20:39:45 import
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39 olp.InternalHigh = 0;
4eff17414a43 nginx-0.0.1-2002-08-06-20:39:45 import
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40 olp.Offset = (DWORD) offset;
4eff17414a43 nginx-0.0.1-2002-08-06-20:39:45 import
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41 olp.OffsetHigh = (DWORD) (offset >> 32);
4eff17414a43 nginx-0.0.1-2002-08-06-20:39:45 import
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42 olp.hEvent = NULL;
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43
4eff17414a43 nginx-0.0.1-2002-08-06-20:39:45 import
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44 if (headers || trailers) {
4eff17414a43 nginx-0.0.1-2002-08-06-20:39:45 import
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45 tfb.Head = headers->ngx_iov_base;
4eff17414a43 nginx-0.0.1-2002-08-06-20:39:45 import
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46 tfb.HeadLength = headers->ngx_iov_len;
4eff17414a43 nginx-0.0.1-2002-08-06-20:39:45 import
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47 tfb.Tail = trailers->ngx_iov_base;
4eff17414a43 nginx-0.0.1-2002-08-06-20:39:45 import
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48 tfb.TailLength = trailers->ngx_iov_len;
4eff17414a43 nginx-0.0.1-2002-08-06-20:39:45 import
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49 ptfb = &tfb;
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50
4eff17414a43 nginx-0.0.1-2002-08-06-20:39:45 import
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51 } else {
4eff17414a43 nginx-0.0.1-2002-08-06-20:39:45 import
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52 ptfb = NULL;
4eff17414a43 nginx-0.0.1-2002-08-06-20:39:45 import
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53 }
4eff17414a43 nginx-0.0.1-2002-08-06-20:39:45 import
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54
4eff17414a43 nginx-0.0.1-2002-08-06-20:39:45 import
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55 tfrc = TransmitFile(s, fd, nbytes, 0, &olp, ptfb, 0);
4eff17414a43 nginx-0.0.1-2002-08-06-20:39:45 import
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56
4eff17414a43 nginx-0.0.1-2002-08-06-20:39:45 import
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57 if (tfrc == 0)
4eff17414a43 nginx-0.0.1-2002-08-06-20:39:45 import
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58 tf_err = ngx_socket_errno;
4eff17414a43 nginx-0.0.1-2002-08-06-20:39:45 import
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59
4eff17414a43 nginx-0.0.1-2002-08-06-20:39:45 import
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60 /* set sent */
4eff17414a43 nginx-0.0.1-2002-08-06-20:39:45 import
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61 rc = WSAGetOverlappedResult(s, &olp, (unsigned long *) sent, 0, NULL);
4eff17414a43 nginx-0.0.1-2002-08-06-20:39:45 import
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62
4eff17414a43 nginx-0.0.1-2002-08-06-20:39:45 import
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63 ngx_log_debug(log, "ngx_sendfile: %d, @%qd %d:%qd" _
4eff17414a43 nginx-0.0.1-2002-08-06-20:39:45 import
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64 tfrc _ offset _ nbytes _ *sent);
4eff17414a43 nginx-0.0.1-2002-08-06-20:39:45 import
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65
4eff17414a43 nginx-0.0.1-2002-08-06-20:39:45 import
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66 if (rc == 0) {
4eff17414a43 nginx-0.0.1-2002-08-06-20:39:45 import
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67 err = ngx_socket_errno;
4eff17414a43 nginx-0.0.1-2002-08-06-20:39:45 import
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68 ngx_log_error(NGX_LOG_ERR, log, err,
4eff17414a43 nginx-0.0.1-2002-08-06-20:39:45 import
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69 "ngx_sendfile: WSAGetOverlappedResult failed");
4eff17414a43 nginx-0.0.1-2002-08-06-20:39:45 import
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70 }
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71
4eff17414a43 nginx-0.0.1-2002-08-06-20:39:45 import
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72 if (tfrc == 0) {
4eff17414a43 nginx-0.0.1-2002-08-06-20:39:45 import
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73 if (tf_err != NGX_EAGAIN) {
4eff17414a43 nginx-0.0.1-2002-08-06-20:39:45 import
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74 ngx_log_error(NGX_LOG_ERR, log, tf_err,
4eff17414a43 nginx-0.0.1-2002-08-06-20:39:45 import
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75 "ngx_sendfile: TransmitFile failed");
4eff17414a43 nginx-0.0.1-2002-08-06-20:39:45 import
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76 return -1;
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77 }
4eff17414a43 nginx-0.0.1-2002-08-06-20:39:45 import
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78
4eff17414a43 nginx-0.0.1-2002-08-06-20:39:45 import
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79 ngx_log_error(NGX_LOG_INFO, log, tf_err,
4eff17414a43 nginx-0.0.1-2002-08-06-20:39:45 import
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80 "ngx_sendfile: TransmitFile sent only %qd bytes", *sent);
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81 }
4eff17414a43 nginx-0.0.1-2002-08-06-20:39:45 import
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82
4eff17414a43 nginx-0.0.1-2002-08-06-20:39:45 import
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83 if (rc == 0)
4eff17414a43 nginx-0.0.1-2002-08-06-20:39:45 import
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84 return -1;
4eff17414a43 nginx-0.0.1-2002-08-06-20:39:45 import
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85
4eff17414a43 nginx-0.0.1-2002-08-06-20:39:45 import
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86 return 0;
4eff17414a43 nginx-0.0.1-2002-08-06-20:39:45 import
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87 }
4eff17414a43 nginx-0.0.1-2002-08-06-20:39:45 import
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88
4eff17414a43 nginx-0.0.1-2002-08-06-20:39:45 import
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89 #endif