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netmgr: make TCP timeouts configurable

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- restore support for tcp-initial-timeout, tcp-idle-timeout,
  tcp-keepalive-timeout and tcp-advertised-timeout configuration
  options, which were ineffective previously.
This commit is contained in:
Evan Hunt
2019-11-20 22:33:35 +01:00
parent b7a72b1667
commit 199bd6b623
13 changed files with 200 additions and 104 deletions
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18
lib/isc/netmgr/netmgr-int.h
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@@ -243,6 +243,18 @@ struct isc_nm {
* event or wait for the other one to finish if we want to pause.
*/
atomic_bool interlocked;
/*
* Timeout values for TCP connections, coresponding to
* tcp-intiial-timeout, tcp-idle-timeout, tcp-keepalive-timeout,
* and tcp-advertised-timeout. Note that these are stored in
* milliseconds so they can be used directly with the libuv timer,
* but they are configured in tenths of seconds.
*/
uint32_t init;
uint32_t idle;
uint32_t keepalive;
uint32_t advertised;
};
typedef enum isc_nmsocket_type {
@@ -339,6 +351,12 @@ struct isc_nmsocket {
*/
atomic_bool readpaused;
/*%
* A TCP or TCPDNS socket has been set to use the keepalive
* timeout instead of the default idle timeout.
*/
atomic_bool keepalive;
/*%
* 'spare' handles for that can be reused to avoid allocations,
* for UDP.