| 1 | /*
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| 2 | * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved.
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| 3 | *
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| 4 | * Licensed under the OpenSSL license (the "License"). You may not use
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| 5 | * this file except in compliance with the License. You can obtain a copy
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| 6 | * in the file LICENSE in the source distribution or at
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| 7 | * https://www.openssl.org/source/license.html
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| 8 | */
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| 9 |
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| 10 | #include <stdio.h>
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| 11 | #include <string.h>
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| 12 | #include <stdlib.h>
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| 13 | /*
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| 14 | * If you wish to build this outside of OpenSSL, remove the following lines
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| 15 | * and things should work as expected
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| 16 | */
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| 17 | #include "internal/cryptlib.h"
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| 18 |
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| 19 | #include <openssl/bio.h>
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| 20 | #include <openssl/lhash.h>
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| 21 | #include "lhash_lcl.h"
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| 22 |
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| 23 | # ifndef OPENSSL_NO_STDIO
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| 24 | void OPENSSL_LH_stats(const OPENSSL_LHASH *lh, FILE *fp)
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| 25 | {
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| 26 | BIO *bp;
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| 27 |
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| 28 | bp = BIO_new(BIO_s_file());
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| 29 | if (bp == NULL)
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| 30 | return;
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| 31 | BIO_set_fp(bp, fp, BIO_NOCLOSE);
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| 32 | OPENSSL_LH_stats_bio(lh, bp);
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| 33 | BIO_free(bp);
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| 34 | }
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| 35 |
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| 36 | void OPENSSL_LH_node_stats(const OPENSSL_LHASH *lh, FILE *fp)
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| 37 | {
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| 38 | BIO *bp;
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| 39 |
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| 40 | bp = BIO_new(BIO_s_file());
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| 41 | if (bp == NULL)
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| 42 | return;
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| 43 | BIO_set_fp(bp, fp, BIO_NOCLOSE);
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| 44 | OPENSSL_LH_node_stats_bio(lh, bp);
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| 45 | BIO_free(bp);
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| 46 | }
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| 47 |
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| 48 | void OPENSSL_LH_node_usage_stats(const OPENSSL_LHASH *lh, FILE *fp)
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| 49 | {
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| 50 | BIO *bp;
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| 51 |
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| 52 | bp = BIO_new(BIO_s_file());
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| 53 | if (bp == NULL)
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| 54 | return;
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| 55 | BIO_set_fp(bp, fp, BIO_NOCLOSE);
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| 56 | OPENSSL_LH_node_usage_stats_bio(lh, bp);
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| 57 | BIO_free(bp);
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| 58 | }
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| 59 |
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| 60 | # endif
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| 61 |
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| 62 | void OPENSSL_LH_stats_bio(const OPENSSL_LHASH *lh, BIO *out)
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| 63 | {
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| 64 | OPENSSL_LHASH *lh_mut = (OPENSSL_LHASH *) lh;
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| 65 | int ret;
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| 66 |
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| 67 | BIO_printf(out, "num_items = %lu\n", lh->num_items);
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| 68 | BIO_printf(out, "num_nodes = %u\n", lh->num_nodes);
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| 69 | BIO_printf(out, "num_alloc_nodes = %u\n", lh->num_alloc_nodes);
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| 70 | BIO_printf(out, "num_expands = %lu\n", lh->num_expands);
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| 71 | BIO_printf(out, "num_expand_reallocs = %lu\n", lh->num_expand_reallocs);
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| 72 | BIO_printf(out, "num_contracts = %lu\n", lh->num_contracts);
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| 73 | BIO_printf(out, "num_contract_reallocs = %lu\n",
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| 74 | lh->num_contract_reallocs);
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| 75 | CRYPTO_atomic_add(&lh_mut->num_hash_calls, 0, &ret,
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| 76 | lh->retrieve_stats_lock);
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| 77 | BIO_printf(out, "num_hash_calls = %d\n", ret);
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| 78 | CRYPTO_atomic_add(&lh_mut->num_comp_calls, 0, &ret,
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| 79 | lh->retrieve_stats_lock);
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| 80 | BIO_printf(out, "num_comp_calls = %d\n", ret);
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| 81 | BIO_printf(out, "num_insert = %lu\n", lh->num_insert);
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| 82 | BIO_printf(out, "num_replace = %lu\n", lh->num_replace);
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| 83 | BIO_printf(out, "num_delete = %lu\n", lh->num_delete);
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| 84 | BIO_printf(out, "num_no_delete = %lu\n", lh->num_no_delete);
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| 85 | CRYPTO_atomic_add(&lh_mut->num_retrieve, 0, &ret, lh->retrieve_stats_lock);
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| 86 | BIO_printf(out, "num_retrieve = %d\n", ret);
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| 87 | CRYPTO_atomic_add(&lh_mut->num_retrieve_miss, 0, &ret,
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| 88 | lh->retrieve_stats_lock);
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| 89 | BIO_printf(out, "num_retrieve_miss = %d\n", ret);
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| 90 | CRYPTO_atomic_add(&lh_mut->num_hash_comps, 0, &ret,
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| 91 | lh->retrieve_stats_lock);
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| 92 | BIO_printf(out, "num_hash_comps = %d\n", ret);
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| 93 | }
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| 94 |
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| 95 | void OPENSSL_LH_node_stats_bio(const OPENSSL_LHASH *lh, BIO *out)
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| 96 | {
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| 97 | OPENSSL_LH_NODE *n;
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| 98 | unsigned int i, num;
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| 99 |
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| 100 | for (i = 0; i < lh->num_nodes; i++) {
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| 101 | for (n = lh->b[i], num = 0; n != NULL; n = n->next)
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| 102 | num++;
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| 103 | BIO_printf(out, "node %6u -> %3u\n", i, num);
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| 104 | }
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| 105 | }
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| 106 |
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| 107 | void OPENSSL_LH_node_usage_stats_bio(const OPENSSL_LHASH *lh, BIO *out)
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| 108 | {
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| 109 | OPENSSL_LH_NODE *n;
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| 110 | unsigned long num;
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| 111 | unsigned int i;
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| 112 | unsigned long total = 0, n_used = 0;
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| 113 |
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| 114 | for (i = 0; i < lh->num_nodes; i++) {
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| 115 | for (n = lh->b[i], num = 0; n != NULL; n = n->next)
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| 116 | num++;
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| 117 | if (num != 0) {
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| 118 | n_used++;
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| 119 | total += num;
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| 120 | }
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| 121 | }
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| 122 | BIO_printf(out, "%lu nodes used out of %u\n", n_used, lh->num_nodes);
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| 123 | BIO_printf(out, "%lu items\n", total);
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| 124 | if (n_used == 0)
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| 125 | return;
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| 126 | BIO_printf(out, "load %d.%02d actual load %d.%02d\n",
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| 127 | (int)(total / lh->num_nodes),
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| 128 | (int)((total % lh->num_nodes) * 100 / lh->num_nodes),
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| 129 | (int)(total / n_used), (int)((total % n_used) * 100 / n_used));
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| 130 | }
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