101 lines
3.1 KiB
C
101 lines
3.1 KiB
C
/* Copyright (c) 2017 - 2022 LiteSpeed Technologies Inc. See LICENSE. */
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/*
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* lsquic_mm.h -- Memory manager.
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*
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* Allocators and in this class are meant to be used for the lifetime of
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* QUIC engine.
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*/
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#ifndef LSQUIC_MM_H
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#define LSQUIC_MM_H 1
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struct lsquic_engine_public;
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struct lsquic_packet_in;
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struct lsquic_packet_out;
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struct ack_info;
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struct malo;
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struct mini_conn;
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struct pool_stats
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{
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unsigned ps_calls; /* Calls to get/put */
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unsigned ps_max; /* Maximum during this sample period */
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unsigned ps_max_avg, /* Average maximum value */
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ps_max_var;
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unsigned ps_objs_all; /* Number of objects owned by the pool */
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unsigned ps_objs_out; /* Number of objects in use */
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};
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#define MM_N_OUT_BUCKETS 5
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#define MM_N_IN_BUCKETS 3
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struct lsquic_mm {
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struct ack_info *acki;
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struct {
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struct malo *stream_frame; /* For struct stream_frame */
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struct malo *frame_rec_arr; /* For struct frame_rec_arr */
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struct malo *mini_conn; /* For struct mini_conn */
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struct malo *mini_conn_ietf;/* For struct ietf_mini_conn */
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struct malo *packet_in; /* For struct lsquic_packet_in */
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struct malo *packet_out; /* For struct lsquic_packet_out */
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struct malo *dcid_elem; /* For struct dcid_elem */
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struct malo *stream_hq_frame; /* For struct stream_hq_frame */
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} malo;
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TAILQ_HEAD(, lsquic_packet_in) free_packets_in;
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SLIST_HEAD(, packet_out_buf) packet_out_bufs[MM_N_OUT_BUCKETS];
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struct pool_stats packet_out_bstats[MM_N_OUT_BUCKETS];
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struct pool_stats packet_in_bstats[MM_N_IN_BUCKETS];
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SLIST_HEAD(, packet_in_buf) packet_in_bufs[MM_N_IN_BUCKETS];
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SLIST_HEAD(, four_k_page) four_k_pages;
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SLIST_HEAD(, sixteen_k_page) sixteen_k_pages;
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char *ack_str;
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};
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int
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lsquic_mm_init (struct lsquic_mm *);
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void
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lsquic_mm_cleanup (struct lsquic_mm *);
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struct lsquic_packet_in *
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lsquic_mm_get_packet_in (struct lsquic_mm *);
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void
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lsquic_mm_put_packet_in (struct lsquic_mm *, struct lsquic_packet_in *);
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#define lsquic_packet_in_put(mm, p) do { \
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assert((p)->pi_refcnt != 0); \
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if (--(p)->pi_refcnt == 0) \
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lsquic_mm_put_packet_in(mm, p); \
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} while (0)
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struct lsquic_packet_out *
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lsquic_mm_get_packet_out (struct lsquic_mm *, struct malo *,
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unsigned short size);
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void
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lsquic_mm_put_packet_out (struct lsquic_mm *, struct lsquic_packet_out *);
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void *
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lsquic_mm_get_packet_in_buf (struct lsquic_mm *, size_t);
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void
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lsquic_mm_put_packet_in_buf (struct lsquic_mm *, void *, size_t);
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void *
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lsquic_mm_get_4k (struct lsquic_mm *);
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void
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lsquic_mm_put_4k (struct lsquic_mm *, void *);
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void *
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lsquic_mm_get_16k (struct lsquic_mm *);
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void
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lsquic_mm_put_16k (struct lsquic_mm *, void *);
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size_t
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lsquic_mm_mem_used (const struct lsquic_mm *mm);
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#endif
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