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https://github.com/EndPositive/slipstream.git
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2038af95e8
* replace cqb with a dns request buffer with separate queues for each cnx id * ensure we respond to the addr from the DNS request we popped from queue
55 lines
2 KiB
C
55 lines
2 KiB
C
#ifndef SLIPSTREAM_DNS_REQUEST_BUFFER
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#define SLIPSTREAM_DNS_REQUEST_BUFFER
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#include <stdbool.h>
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#include "SPCDNS/src/dns.h"
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#define GLOBAL_BUFFER_SIZE 4096
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typedef struct st_slipstream_cnxid_dns_request_buffer_t slipstream_cnxid_dns_request_buffer_t;
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typedef struct st_element_t {
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dns_decoded_t dns_decoded[DNS_DECODEBUF_4K];
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struct sockaddr_storage peer_addr;
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struct st_element_t* buffer_prev;
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struct st_element_t* buffer_next;
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struct st_element_t* cnxid_buffer_prev;
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struct st_element_t* cnxid_buffer_next;
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slipstream_cnxid_dns_request_buffer_t* cnxid_buffer;
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} slot_t;
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typedef struct st_slipstream_cnxid_dns_request_buffer_t {
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slot_t* head;
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slot_t* tail;
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} slipstream_cnxid_dns_request_buffer_t;
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typedef struct {
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slot_t elements[GLOBAL_BUFFER_SIZE];
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slot_t* head;
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slot_t* tail;
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slot_t* free;
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picohash_table* cnxid_to_cnxid_buffer;
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} slipstream_dns_request_buffer_t;
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typedef struct st_cnxid_to_cnxid_buffer_t {
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picoquic_connection_id_t cnx_id;
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slipstream_cnxid_dns_request_buffer_t* cnxid_buffer;
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} cnxid_to_cnxid_buffer_t;
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void slipstream_dns_request_buffer_init(slipstream_dns_request_buffer_t* buffer);
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slipstream_cnxid_dns_request_buffer_t* slipstream_dns_request_buffer_get_cnxid_buffer(
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slipstream_dns_request_buffer_t* buffer, picoquic_connection_id_t* initial_cnxid, bool create);
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slot_t* slipstream_dns_request_buffer_get_write_slot(slipstream_dns_request_buffer_t* buffer);
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void slipstream_dns_request_buffer_commit_slot_to_cnxid_buffer(slipstream_dns_request_buffer_t* buffer,
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slipstream_cnxid_dns_request_buffer_t* cnxid_buffer,
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slot_t* slot);
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slot_t* slipstream_dns_request_buffer_get_read_slot(slipstream_dns_request_buffer_t* buffer,
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slipstream_cnxid_dns_request_buffer_t* cnxid_buffer);
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#endif //SLIPSTREAM_DNS_REQUEST_BUFFER
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