boringssl/crypto/lhash/make_macros.sh
David Benjamin 58150ed59b Add lh_FOO_retrieve_key to avoid stack-allocating SSL_SESSION.
lh_FOO_retrieve is often called with a dummy instance of FOO that has
only a few fields filled in. This works fine for C, but a C++
SSL_SESSION with destructors is a bit more of a nuisance here.

Instead, teach LHASH to allow queries by some external key type. This
avoids stack-allocating SSL_SESSION. Along the way, fix the
make_macros.sh script.

Change-Id: Ie0b482d4ffe1027049d49db63274c7c17f9398fa
Reviewed-on: https://boringssl-review.googlesource.com/29586
Commit-Queue: David Benjamin <davidben@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
Reviewed-by: Adam Langley <agl@google.com>
2018-07-03 22:56:46 +00:00

71 lines
2.7 KiB
Bash

#!/bin/sh
include_dir=../../include/openssl
out=${include_dir}/lhash_macros.h
cat > $out << EOF
/* Copyright (c) 2014, Google Inc.
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
* SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
* OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
* CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */
#if !defined(IN_LHASH_H)
#error "Don't include this file directly. Include lhash.h"
#endif
EOF
output_lhash () {
type=$1
cat >> $out << EOF
// ${type}
#define lh_${type}_new(hash, comp)\\
((LHASH_OF(${type})*) lh_new(CHECKED_CAST(lhash_hash_func, uint32_t (*) (const ${type} *), hash), CHECKED_CAST(lhash_cmp_func, int (*) (const ${type} *a, const ${type} *b), comp)))
#define lh_${type}_free(lh)\\
lh_free(CHECKED_CAST(_LHASH*, LHASH_OF(${type})*, lh));
#define lh_${type}_num_items(lh)\\
lh_num_items(CHECKED_CAST(_LHASH*, LHASH_OF(${type})*, lh))
#define lh_${type}_retrieve(lh, data)\\
((${type}*) lh_retrieve(CHECKED_CAST(_LHASH*, LHASH_OF(${type})*, lh), CHECKED_CAST(void*, ${type}*, data)))
#define lh_${type}_retrieve_key(lh, key, key_hash, cmp_key)\\
((${type}*) lh_retrieve_key(CHECKED_CAST(_LHASH*, LHASH_OF(${type})*, lh), key, key_hash, CHECKED_CAST(int (*)(const void *, const void *), int (*)(const void *, const ${type} *), cmp_key)))
#define lh_${type}_insert(lh, old_data, data)\\
lh_insert(CHECKED_CAST(_LHASH*, LHASH_OF(${type})*, lh), CHECKED_CAST(void**, ${type}**, old_data), CHECKED_CAST(void*, ${type}*, data))
#define lh_${type}_delete(lh, data)\\
((${type}*) lh_delete(CHECKED_CAST(_LHASH*, LHASH_OF(${type})*, lh), CHECKED_CAST(void*, ${type}*, data)))
#define lh_${type}_doall(lh, func)\\
lh_doall(CHECKED_CAST(_LHASH*, LHASH_OF(${type})*, lh), CHECKED_CAST(void (*)(void*), void (*) (${type}*), func));
#define lh_${type}_doall_arg(lh, func, arg)\\
lh_doall_arg(CHECKED_CAST(_LHASH*, LHASH_OF(${type})*, lh), CHECKED_CAST(void (*)(void*, void*), void (*) (${type}*, void*), func), arg);
EOF
}
lhash_types=$(cat ${include_dir}/lhash.h | grep '^// LHASH_OF:' | sed -e 's/.*LHASH_OF://' -e 's/ .*//')
for type in $lhash_types; do
echo Hash of ${type}
output_lhash "${type}"
done
clang-format -i $out