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odyssey/sources/backend.h

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odyssey: major io rework and refactoring This patch moves Odyssey from stream based write caching to message driven. All write operations are delayed and happen on a group of messages. This removes necessity to do IO and wait for write completion during calls from SSL_write() context. Write timings should behave more predictable now and number of used syscalls should be also decreased. This patch also simplifies caching management. All clients are simply reusing cached messages without prolonged contention. Several configuration options are no longer used: pipeline, cache, cache_chunk
2018-08-28 14:43:46 +00:00
#ifndef ODYSSEY_BACKEND_H
#define ODYSSEY_BACKEND_H
odissey: add backend connect logic
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/*
odyssey: project rename
2018-03-12 14:03:15 +00:00
* Odyssey.
odissey: add backend connect logic
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*
odyssey: update source file headers
2018-04-04 13:19:58 +00:00
* Scalable PostgreSQL connection pooler.
odissey: add backend connect logic
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*/
odyssey: major parameter settings optimization
2018-12-12 13:07:25 +00:00
int od_backend_connect(od_server_t*, char*, kiwi_params_t*);
odyssey: major router and shared logic rework Goal is to improve overall performance during massive peaks of connecting clients. This patch makes router a shared structure, instead of being run in separate system worker thread/coroutine. Now router and each route object is protected by separate mutex. Worker threads directly access router object without calls to separate thread.
2018-12-06 14:23:15 +00:00
int od_backend_connect_cancel(od_server_t*, od_rule_storage_t*, kiwi_key_t*);
odissey: move server connection close out of pooler
2018-02-15 13:06:46 +00:00
void od_backend_close_connection(od_server_t*);
odissey: implement router close; update machinarium
2017-05-30 15:04:59 +00:00
void od_backend_close(od_server_t*);
odyssey: major rework of io architecture This patch intend is to improve overall io performance, reduce cpu and system usage. Machinarium: IO read/write logic is highly simplified and now based on conditions instead of previously made internal readahead buffer and msg queues. This allows to give user more control over io operations and avoid doing undesired readahead copying. Above that, TLS implementation reworked to use async logic instead of separate BIO layer. Direct pooling functions removed. New objects machine_cond_t and machine_iov_t objects. Odyssey: Introduced readahead, io and relay objects. Relay allows to connect two io handles for direct data retransmission without double copying. Removed configuration options no longer needed: packet_read_size, packet_write_queue
2019-01-23 15:43:52 +00:00
void od_backend_error(od_server_t*, char*, char*, uint32_t);
int od_backend_update_parameter(od_server_t*, char*, char*, uint32_t, int);
int od_backend_ready(od_server_t*, char*, uint32_t);
odyssey: major io rework and refactoring This patch moves Odyssey from stream based write caching to message driven. All write operations are delayed and happen on a group of messages. This removes necessity to do IO and wait for write completion during calls from SSL_write() context. Write timings should behave more predictable now and number of used syscalls should be also decreased. This patch also simplifies caching management. All clients are simply reusing cached messages without prolonged contention. Several configuration options are no longer used: pipeline, cache, cache_chunk
2018-08-28 14:43:46 +00:00
int od_backend_ready_wait(od_server_t*, char*, int, uint32_t);
Add cancel\rollback timeout
2020-02-06 13:48:04 +00:00
int od_backend_query(od_server_t*, char*, char*, int, uint32_t);
odissey: assemble basic session pooling
2017-05-29 14:53:21 +00:00
odyssey: major io rework and refactoring This patch moves Odyssey from stream based write caching to message driven. All write operations are delayed and happen on a group of messages. This removes necessity to do IO and wait for write completion during calls from SSL_write() context. Write timings should behave more predictable now and number of used syscalls should be also decreased. This patch also simplifies caching management. All clients are simply reusing cached messages without prolonged contention. Several configuration options are no longer used: pipeline, cache, cache_chunk
2018-08-28 14:43:46 +00:00
#endif /* ODYSSEY_BACKEND_H */