Mercurial > hg > nginx-quic
view auto/os/solaris @ 7832:ad3a6f069498 quic
Added proper handling of connection close phases.
There are following flags in quic connection:
closing - true, when a connection close is initiated, for whatever reason
draining - true, when a CC frame is received from peer
The following state machine is used for closing:
+------------------+
| I/HS/AD |
+------------------+
| | |
| | V
| | immediate close initiated:
| | reasons: close by top-level protocol, fatal error
| | + sends CC (probably with app-level message)
| | + starts close_timer: 3 * PTO (current probe timeout)
| | |
| | V
| | +---------+ - Reply to input with CC (rate-limited)
| | | CLOSING | - Close/Reset all streams
| | +---------+
| | | |
| V V |
| receives CC |
| | |
idle | |
timer | |
| V |
| +----------+ | - MUST NOT send anything (MAY send a single CC)
| | DRAINING | | - if not already started, starts close_timer: 3 * PTO
| +----------+ | - if not already done, close all streams
| | |
| | |
| close_timer fires
| |
V V
+------------------------+
| CLOSED | - clean up all the resources, drop connection
+------------------------+ state completely
The ngx_quic_close_connection() function gets an "rc" argument, that signals
reason of connection closing:
NGX_OK - initiated by application (i.e. http/3), follow state machine
NGX_DONE - timedout (while idle or draining)
NGX_ERROR - fatal error, destroy connection immediately
The PTO calculations are not yet implemented, hardcoded value of 5s is used.
author | Vladimir Homutov <vl@nginx.com> |
---|---|
date | Thu, 23 Apr 2020 13:41:08 +0300 |
parents | e393c0bf53d3 |
children |
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# Copyright (C) Igor Sysoev # Copyright (C) Nginx, Inc. have=NGX_SOLARIS . auto/have_headers CORE_INCS="$UNIX_INCS" CORE_DEPS="$UNIX_DEPS $SOLARIS_DEPS" CORE_SRCS="$UNIX_SRCS $SOLARIS_SRCS " CORE_LIBS="$CORE_LIBS -lsocket -lnsl" NGX_RPATH=YES # Solaris's make does not support a blank line between target and rules ngx_spacer= CC_AUX_FLAGS="$CC_AUX_FLAGS -D_FILE_OFFSET_BITS=64 -lsocket -lnsl" if [ $ZLIB_ASM != NO ]; then echo "$0: error: the --with-zlib-asm=CPU option is not supported" echo "on that platform" echo exit 1 fi ngx_feature="sendfilev()" ngx_feature_name="NGX_HAVE_SENDFILE" ngx_feature_run=no ngx_feature_incs="#include <sys/sendfile.h>" ngx_feature_path= ngx_feature_libs="-lsendfile" ngx_feature_test="int fd = 1; sendfilevec_t vec[1]; size_t sent; ssize_t n; n = sendfilev(fd, vec, 1, &sent); if (n == -1) return 1" . auto/feature if [ $ngx_found = yes ]; then CORE_SRCS="$CORE_SRCS $SOLARIS_SENDFILEV_SRCS" CORE_LIBS="$CORE_LIBS -lsendfile" fi ngx_feature="event ports" ngx_feature_name="NGX_HAVE_EVENTPORT" ngx_feature_run=no ngx_feature_incs="#include <port.h>" ngx_feature_path= ngx_feature_libs= ngx_feature_test="(void) port_create()" . auto/feature if [ $ngx_found = yes ]; then CORE_SRCS="$CORE_SRCS $EVENTPORT_SRCS" EVENT_MODULES="$EVENT_MODULES $EVENTPORT_MODULE" fi