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Add nghttp2_session_consume() API

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Reworked no automatic WINDOW_UPDATE feature.  We added new API
nghttp2_session_consume() which tells the library how many bytes are
consumed by the application.  Instead of submitting WINDOW_UPDATE by
the application, the library is now responsible to submit
WINDOW_UPDATE based on consumed bytes.  This is more reliable method,
since it enables us to properly send WINDOW_UPDATE for stream and
connection individually.  The previous implementation of nghttpx had
broken connection window management.
This commit is contained in:
Tatsuhiro Tsujikawa
2014-07-25 21:26:03 +09:00
parent 9f17bee51d
commit 079db14d45
18 changed files with 395 additions and 276 deletions
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30
lib/nghttp2_option.h
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@@ -37,22 +37,12 @@
typedef enum {
/**
* This option prevents the library from sending WINDOW_UPDATE for a
* stream automatically. If this option is set to nonzero, the
* library won't send WINDOW_UPDATE for a stream and the application
* is responsible for sending WINDOW_UPDATE using
* `nghttp2_submit_window_update`. By default, this option is set to
* zero.
* connection automatically. If this option is set to nonzero, the
* library won't send WINDOW_UPDATE for DATA until application calls
* nghttp2_session_consume() to indicate the amount of consumed
* DATA. By default, this option is set to zero.
*/
NGHTTP2_OPT_NO_AUTO_STREAM_WINDOW_UPDATE = 1,
/**
* This option prevents the library from sending WINDOW_UPDATE for a
* connection automatically. If this option is set to nonzero, the
* library won't send WINDOW_UPDATE for a connection and the
* application is responsible for sending WINDOW_UPDATE with stream
* ID 0 using `nghttp2_submit_window_update`. By default, this
* option is set to zero.
*/
NGHTTP2_OPT_NO_AUTO_CONNECTION_WINDOW_UPDATE = 1 << 1,
NGHTTP2_OPT_NO_AUTO_WINDOW_UPDATE = 1,
/**
* This option sets the SETTINGS_MAX_CONCURRENT_STREAMS value of
* remote endpoint as if it is received in SETTINGS frame. Without
@@ -66,7 +56,7 @@ typedef enum {
* will be overwritten if the local endpoint receives
* SETTINGS_MAX_CONCURRENT_STREAMS from the remote endpoint.
*/
NGHTTP2_OPT_PEER_MAX_CONCURRENT_STREAMS = 1 << 2
NGHTTP2_OPT_PEER_MAX_CONCURRENT_STREAMS = 1 << 1
} nghttp2_option_flag;
/**
@@ -83,13 +73,9 @@ struct nghttp2_option {
*/
uint32_t peer_max_concurrent_streams;
/**
* NGHTTP2_OPT_NO_AUTO_STREAM_WINDOW_UPDATE
* NGHTTP2_OPT_NO_AUTO_WINDOW_UPDATE
*/
uint8_t no_auto_stream_window_update;
/**
* NGHTTP2_OPT_NO_AUTO_CONNECTION_WINDOW_UPDATE
*/
uint8_t no_auto_connection_window_update;
uint8_t no_auto_window_update;
};
#endif /* NGHTTP2_OPTION_H */