src/server/util/io.c

changeset 513
9a49c245a49c
parent 502
11ac3761c0e3
child 539
d556b45b0d24
equal deleted inserted replaced
511:a5a142fea2ae 513:9a49c245a49c
76 (io_sendfile_f)NET_SYS_SENDFILE, 76 (io_sendfile_f)NET_SYS_SENDFILE,
77 (io_close_f)net_sys_close, 77 (io_close_f)net_sys_close,
78 NULL, 78 NULL,
79 (io_setmode_f)net_sys_setmode, 79 (io_setmode_f)net_sys_setmode,
80 (io_poll_f)net_sys_poll, 80 (io_poll_f)net_sys_poll,
81 0,
81 0 82 0
82 }; 83 };
83 84
84 IOStream http_io_funcs = { 85 IOStream http_io_funcs = {
85 (io_write_f)net_http_write, 86 (io_write_f)net_http_write,
88 (io_sendfile_f)net_http_sendfile, 89 (io_sendfile_f)net_http_sendfile,
89 (io_close_f)net_http_close, 90 (io_close_f)net_http_close,
90 (io_finish_f)net_http_finish, 91 (io_finish_f)net_http_finish,
91 (io_setmode_f)net_http_setmode, 92 (io_setmode_f)net_http_setmode,
92 (io_poll_f)net_http_poll, 93 (io_poll_f)net_http_poll,
93 0 94 0,
95 IO_STREAM_TYPE_HTTP
94 }; 96 };
95 97
96 IOStream ssl_io_funcs = { 98 IOStream ssl_io_funcs = {
97 (io_write_f)net_ssl_write, 99 (io_write_f)net_ssl_write,
98 (io_writev_f)net_ssl_writev, 100 (io_writev_f)net_ssl_writev,
100 NULL, 102 NULL,
101 (io_close_f)net_ssl_close, 103 (io_close_f)net_ssl_close,
102 (io_finish_f)net_ssl_finish, 104 (io_finish_f)net_ssl_finish,
103 (io_setmode_f)net_ssl_setmode, 105 (io_setmode_f)net_ssl_setmode,
104 (io_poll_f)net_ssl_poll, 106 (io_poll_f)net_ssl_poll,
105 0 107 0,
108 IO_STREAM_TYPE_SSL
106 }; 109 };
107 110
111 static int net_write_max_attempts = 16384;
112
113 void io_set_max_writes(int n) {
114 net_write_max_attempts = 1;
115 }
108 116
109 /* 117 /*
110 * Sysstream implementation 118 * Sysstream implementation
111 */ 119 */
112 120
298 http->read_eof = WS_FALSE; 306 http->read_eof = WS_FALSE;
299 return 0; 307 return 0;
300 } 308 }
301 309
302 int httpstream_enable_chunked_write(IOStream *st) { 310 int httpstream_enable_chunked_write(IOStream *st) {
303 if(st->write != (io_write_f)net_http_write) { 311 if(st->type != IO_STREAM_TYPE_HTTP) {
304 log_ereport(LOG_FAILURE, "%s", "httpstream_enable_chunked_write: IOStream is not an HttpStream"); 312 log_ereport(LOG_FAILURE, "%s", "httpstream_enable_chunked_write: IOStream is not an HttpStream");
305 return 1; 313 return 1;
306 } 314 }
307 HttpStream *http = (HttpStream*)st; 315 HttpStream *http = (HttpStream*)st;
308 http->chunked_enc = WS_TRUE; 316 http->chunked_enc = WS_TRUE;
465 } 473 }
466 474
467 st->written += ret_w; 475 st->written += ret_w;
468 if(ret_w == 0) { 476 if(ret_w == 0) {
469 st->st.io_errno = EWOULDBLOCK; // not sure if this is really correct 477 st->st.io_errno = EWOULDBLOCK; // not sure if this is really correct
470 ret_w = -1; 478 //ret_w = -1;
471 } 479 }
472 return ret_w; 480 return ret_w;
473 } 481 }
474 } 482 }
475 483
874 } 882 }
875 return r; 883 return r;
876 } 884 }
877 885
878 ssize_t net_write(SYS_NETFD fd, const void *buf, size_t nbytes) { 886 ssize_t net_write(SYS_NETFD fd, const void *buf, size_t nbytes) {
879 ssize_t r = ((IOStream*)fd)->write(fd, buf, nbytes); 887 size_t w = 0;
880 if(r < 0) { 888 size_t remaining = nbytes;
889 const char *cbuf = buf;
890 ssize_t r = 0;
891 int attempts = 0;
892 while(w < nbytes && attempts < net_write_max_attempts) {
893 r = ((IOStream*)fd)->write(fd, cbuf, remaining);
894 if(r <= 0) {
895 break;
896 }
897 w += r;
898 cbuf += r;
899 remaining -= r;
900 attempts++;
901 }
902 if(r < 0 && w == 0) {
881 return IO_ERROR; 903 return IO_ERROR;
882 } 904 }
883 return r; 905 return w;
884 } 906 }
885 907
886 ssize_t net_writev(SYS_NETFD fd, struct iovec *iovec, int iovcnt) { 908 ssize_t net_writev(SYS_NETFD fd, struct iovec *iovec, int iovcnt) {
887 ssize_t r = ((IOStream*)fd)->writev(fd, iovec, iovcnt); 909 ssize_t r = ((IOStream*)fd)->writev(fd, iovec, iovcnt);
888 if(r < 0) { 910 if(r < 0) {

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