diff options
Diffstat (limited to 'openssl/crypto/pqueue')
| -rw-r--r-- | openssl/crypto/pqueue/Makefile | 84 | ||||
| -rw-r--r-- | openssl/crypto/pqueue/pq_compat.h | 152 | ||||
| -rw-r--r-- | openssl/crypto/pqueue/pq_test.c | 95 | ||||
| -rw-r--r-- | openssl/crypto/pqueue/pqueue.c | 236 | ||||
| -rw-r--r-- | openssl/crypto/pqueue/pqueue.h | 95 |
5 files changed, 662 insertions, 0 deletions
diff --git a/openssl/crypto/pqueue/Makefile b/openssl/crypto/pqueue/Makefile new file mode 100644 index 000000000..36bfc349a --- /dev/null +++ b/openssl/crypto/pqueue/Makefile @@ -0,0 +1,84 @@ +# +# OpenSSL/crypto/pqueue/Makefile +# + +DIR= pqueue +TOP= ../.. +CC= cc +INCLUDES= +CFLAG=-g +MAKEFILE= Makefile +AR= ar r + +CFLAGS= $(INCLUDES) $(CFLAG) + +GENERAL=Makefile +TEST= +APPS= + +LIB=$(TOP)/libcrypto.a +LIBSRC=pqueue.c +LIBOBJ=pqueue.o + +SRC= $(LIBSRC) + +EXHEADER= pqueue.h pq_compat.h +HEADER= $(EXHEADER) + +ALL= $(GENERAL) $(SRC) $(HEADER) + +top: + (cd ../..; $(MAKE) DIRS=crypto SDIRS=$(DIR) sub_all) + +all: lib + +lib: $(LIBOBJ) + $(ARX) $(LIB) $(LIBOBJ) + $(RANLIB) $(LIB) || echo Never mind. + @touch lib + +files: + $(PERL) $(TOP)/util/files.pl Makefile >> $(TOP)/MINFO + +links: + @$(PERL) $(TOP)/util/mklink.pl ../../include/openssl $(EXHEADER) + @$(PERL) $(TOP)/util/mklink.pl ../../test $(TEST) + @$(PERL) $(TOP)/util/mklink.pl ../../apps $(APPS) + +install: + @[ -n "$(INSTALLTOP)" ] # should be set by top Makefile... + @headerlist="$(EXHEADER)"; for i in $$headerlist ; \ + do \ + (cp $$i $(INSTALL_PREFIX)$(INSTALLTOP)/include/openssl/$$i; \ + chmod 644 $(INSTALL_PREFIX)$(INSTALLTOP)/include/openssl/$$i ); \ + done; + +tags: + ctags $(SRC) + +tests: + +lint: + lint -DLINT $(INCLUDES) $(SRC)>fluff + +depend: + @[ -n "$(MAKEDEPEND)" ] # should be set by upper Makefile... + $(MAKEDEPEND) -- $(CFLAG) $(INCLUDES) $(DEPFLAG) -- $(PROGS) $(LIBSRC) + +dclean: + $(PERL) -pe 'if (/^# DO NOT DELETE THIS LINE/) {print; exit(0);}' $(MAKEFILE) >Makefile.new + mv -f Makefile.new $(MAKEFILE) + +clean: + rm -f *.o *.obj lib tags core .pure .nfs* *.old *.bak fluff + +# DO NOT DELETE THIS LINE -- make depend depends on it. + +pqueue.o: ../../e_os.h ../../include/openssl/bio.h ../../include/openssl/bn.h +pqueue.o: ../../include/openssl/buffer.h ../../include/openssl/crypto.h +pqueue.o: ../../include/openssl/e_os2.h ../../include/openssl/err.h +pqueue.o: ../../include/openssl/lhash.h ../../include/openssl/opensslconf.h +pqueue.o: ../../include/openssl/opensslv.h ../../include/openssl/ossl_typ.h +pqueue.o: ../../include/openssl/pq_compat.h ../../include/openssl/safestack.h +pqueue.o: ../../include/openssl/stack.h ../../include/openssl/symhacks.h +pqueue.o: ../cryptlib.h pqueue.c pqueue.h diff --git a/openssl/crypto/pqueue/pq_compat.h b/openssl/crypto/pqueue/pq_compat.h new file mode 100644 index 000000000..7b2c32725 --- /dev/null +++ b/openssl/crypto/pqueue/pq_compat.h @@ -0,0 +1,152 @@ +/* crypto/pqueue/pqueue_compat.h */ +/* + * DTLS implementation written by Nagendra Modadugu + * (nagendra@cs.stanford.edu) for the OpenSSL project 2005. + */ +/* ==================================================================== + * Copyright (c) 1999-2005 The OpenSSL Project. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * + * 3. All advertising materials mentioning features or use of this + * software must display the following acknowledgment: + * "This product includes software developed by the OpenSSL Project + * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)" + * + * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to + * endorse or promote products derived from this software without + * prior written permission. For written permission, please contact + * openssl-core@OpenSSL.org. + * + * 5. Products derived from this software may not be called "OpenSSL" + * nor may "OpenSSL" appear in their names without prior written + * permission of the OpenSSL Project. + * + * 6. Redistributions of any form whatsoever must retain the following + * acknowledgment: + * "This product includes software developed by the OpenSSL Project + * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)" + * + * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY + * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR + * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED + * OF THE POSSIBILITY OF SUCH DAMAGE. + * ==================================================================== + * + * This product includes cryptographic software written by Eric Young + * (eay@cryptsoft.com). This product includes software written by Tim + * Hudson (tjh@cryptsoft.com). + * + */ + +#ifndef HEADER_PQ_COMPAT_H +#define HEADER_PQ_COMPAT_H + +#include <openssl/opensslconf.h> +#include <openssl/bn.h> + +/* + * The purpose of this header file is for supporting 64-bit integer + * manipulation on 32-bit (and lower) machines. Currently the only + * such environment is VMS, Utrix and those with smaller default integer + * sizes than 32 bits. For all such environment, we fall back to using + * BIGNUM. We may need to fine tune the conditions for systems that + * are incorrectly configured. + * + * The only clients of this code are (1) pqueue for priority, and + * (2) DTLS, for sequence number manipulation. + */ + +#if (defined(THIRTY_TWO_BIT) && !defined(BN_LLONG)) || defined(SIXTEEN_BIT) || defined(EIGHT_BIT) + +#define PQ_64BIT_IS_INTEGER 0 +#define PQ_64BIT_IS_BIGNUM 1 + +#define PQ_64BIT BIGNUM +#define PQ_64BIT_CTX BN_CTX + +#define pq_64bit_init(x) BN_init(x) +#define pq_64bit_free(x) BN_free(x) + +#define pq_64bit_ctx_new(ctx) BN_CTX_new() +#define pq_64bit_ctx_free(x) BN_CTX_free(x) + +#define pq_64bit_assign(x, y) BN_copy(x, y) +#define pq_64bit_assign_word(x, y) BN_set_word(x, y) +#define pq_64bit_gt(x, y) BN_ucmp(x, y) >= 1 ? 1 : 0 +#define pq_64bit_eq(x, y) BN_ucmp(x, y) == 0 ? 1 : 0 +#define pq_64bit_add_word(x, w) BN_add_word(x, w) +#define pq_64bit_sub(r, x, y) BN_sub(r, x, y) +#define pq_64bit_sub_word(x, w) BN_sub_word(x, w) +#define pq_64bit_mod(r, x, n, ctx) BN_mod(r, x, n, ctx) + +#define pq_64bit_bin2num(bn, bytes, len) BN_bin2bn(bytes, len, bn) +#define pq_64bit_num2bin(bn, bytes) BN_bn2bin(bn, bytes) +#define pq_64bit_get_word(x) BN_get_word(x) +#define pq_64bit_is_bit_set(x, offset) BN_is_bit_set(x, offset) +#define pq_64bit_lshift(r, x, shift) BN_lshift(r, x, shift) +#define pq_64bit_set_bit(x, num) BN_set_bit(x, num) +#define pq_64bit_get_length(x) BN_num_bits((x)) + +#else + +#define PQ_64BIT_IS_INTEGER 1 +#define PQ_64BIT_IS_BIGNUM 0 + +#if defined(SIXTY_FOUR_BIT) +#define PQ_64BIT BN_ULONG +#define PQ_64BIT_PRINT "%lld" +#elif defined(SIXTY_FOUR_BIT_LONG) +#define PQ_64BIT BN_ULONG +#define PQ_64BIT_PRINT "%ld" +#elif defined(THIRTY_TWO_BIT) +#define PQ_64BIT BN_ULLONG +#define PQ_64BIT_PRINT "%lld" +#endif + +#define PQ_64BIT_CTX void + +#define pq_64bit_init(x) +#define pq_64bit_free(x) +#define pq_64bit_ctx_new(ctx) (ctx) +#define pq_64bit_ctx_free(x) + +#define pq_64bit_assign(x, y) (*(x) = *(y)) +#define pq_64bit_assign_word(x, y) (*(x) = y) +#define pq_64bit_gt(x, y) (*(x) > *(y)) +#define pq_64bit_eq(x, y) (*(x) == *(y)) +#define pq_64bit_add_word(x, w) (*(x) = (*(x) + (w))) +#define pq_64bit_sub(r, x, y) (*(r) = (*(x) - *(y))) +#define pq_64bit_sub_word(x, w) (*(x) = (*(x) - (w))) +#define pq_64bit_mod(r, x, n, ctx) + +#define pq_64bit_bin2num(num, bytes, len) bytes_to_long_long(bytes, num) +#define pq_64bit_num2bin(num, bytes) long_long_to_bytes(num, bytes) +#define pq_64bit_get_word(x) *(x) +#define pq_64bit_lshift(r, x, shift) (*(r) = (*(x) << (shift))) +#define pq_64bit_set_bit(x, num) do { \ + PQ_64BIT mask = 1; \ + mask = mask << (num); \ + *(x) |= mask; \ + } while(0) +#endif /* OPENSSL_SYS_VMS */ + +#endif diff --git a/openssl/crypto/pqueue/pq_test.c b/openssl/crypto/pqueue/pq_test.c new file mode 100644 index 000000000..8d496dfc6 --- /dev/null +++ b/openssl/crypto/pqueue/pq_test.c @@ -0,0 +1,95 @@ +/* crypto/pqueue/pq_test.c */ +/* + * DTLS implementation written by Nagendra Modadugu + * (nagendra@cs.stanford.edu) for the OpenSSL project 2005. + */ +/* ==================================================================== + * Copyright (c) 1999-2005 The OpenSSL Project. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * + * 3. All advertising materials mentioning features or use of this + * software must display the following acknowledgment: + * "This product includes software developed by the OpenSSL Project + * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)" + * + * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to + * endorse or promote products derived from this software without + * prior written permission. For written permission, please contact + * openssl-core@OpenSSL.org. + * + * 5. Products derived from this software may not be called "OpenSSL" + * nor may "OpenSSL" appear in their names without prior written + * permission of the OpenSSL Project. + * + * 6. Redistributions of any form whatsoever must retain the following + * acknowledgment: + * "This product includes software developed by the OpenSSL Project + * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)" + * + * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY + * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR + * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED + * OF THE POSSIBILITY OF SUCH DAMAGE. + * ==================================================================== + * + * This product includes cryptographic software written by Eric Young + * (eay@cryptsoft.com). This product includes software written by Tim + * Hudson (tjh@cryptsoft.com). + * + */ + +#include "pqueue.h" + +int +main(void) + { + pitem *item; + pqueue pq; + + pq = pqueue_new(); + + item = pitem_new(3, NULL); + pqueue_insert(pq, item); + + item = pitem_new(1, NULL); + pqueue_insert(pq, item); + + item = pitem_new(2, NULL); + pqueue_insert(pq, item); + + item = pqueue_find(pq, 1); + fprintf(stderr, "found %ld\n", item->priority); + + item = pqueue_find(pq, 2); + fprintf(stderr, "found %ld\n", item->priority); + + item = pqueue_find(pq, 3); + fprintf(stderr, "found %ld\n", item ? item->priority: 0); + + pqueue_print(pq); + + for(item = pqueue_pop(pq); item != NULL; item = pqueue_pop(pq)) + pitem_free(item); + + pqueue_free(pq); + return 0; + } diff --git a/openssl/crypto/pqueue/pqueue.c b/openssl/crypto/pqueue/pqueue.c new file mode 100644 index 000000000..5cc18527f --- /dev/null +++ b/openssl/crypto/pqueue/pqueue.c @@ -0,0 +1,236 @@ +/* crypto/pqueue/pqueue.c */ +/* + * DTLS implementation written by Nagendra Modadugu + * (nagendra@cs.stanford.edu) for the OpenSSL project 2005. + */ +/* ==================================================================== + * Copyright (c) 1999-2005 The OpenSSL Project. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * + * 3. All advertising materials mentioning features or use of this + * software must display the following acknowledgment: + * "This product includes software developed by the OpenSSL Project + * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)" + * + * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to + * endorse or promote products derived from this software without + * prior written permission. For written permission, please contact + * openssl-core@OpenSSL.org. + * + * 5. Products derived from this software may not be called "OpenSSL" + * nor may "OpenSSL" appear in their names without prior written + * permission of the OpenSSL Project. + * + * 6. Redistributions of any form whatsoever must retain the following + * acknowledgment: + * "This product includes software developed by the OpenSSL Project + * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)" + * + * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY + * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR + * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED + * OF THE POSSIBILITY OF SUCH DAMAGE. + * ==================================================================== + * + * This product includes cryptographic software written by Eric Young + * (eay@cryptsoft.com). This product includes software written by Tim + * Hudson (tjh@cryptsoft.com). + * + */ + +#include "cryptlib.h" +#include <openssl/bn.h> +#include "pqueue.h" + +typedef struct _pqueue + { + pitem *items; + int count; + } pqueue_s; + +pitem * +pitem_new(PQ_64BIT priority, void *data) + { + pitem *item = (pitem *) OPENSSL_malloc(sizeof(pitem)); + if (item == NULL) return NULL; + + pq_64bit_init(&(item->priority)); + pq_64bit_assign(&item->priority, &priority); + + item->data = data; + item->next = NULL; + + return item; + } + +void +pitem_free(pitem *item) + { + if (item == NULL) return; + + pq_64bit_free(&(item->priority)); + OPENSSL_free(item); + } + +pqueue_s * +pqueue_new() + { + pqueue_s *pq = (pqueue_s *) OPENSSL_malloc(sizeof(pqueue_s)); + if (pq == NULL) return NULL; + + memset(pq, 0x00, sizeof(pqueue_s)); + return pq; + } + +void +pqueue_free(pqueue_s *pq) + { + if (pq == NULL) return; + + OPENSSL_free(pq); + } + +pitem * +pqueue_insert(pqueue_s *pq, pitem *item) + { + pitem *curr, *next; + + if (pq->items == NULL) + { + pq->items = item; + return item; + } + + for(curr = NULL, next = pq->items; + next != NULL; + curr = next, next = next->next) + { + if (pq_64bit_gt(&(next->priority), &(item->priority))) + { + item->next = next; + + if (curr == NULL) + pq->items = item; + else + curr->next = item; + + return item; + } + /* duplicates not allowed */ + if (pq_64bit_eq(&(item->priority), &(next->priority))) + return NULL; + } + + item->next = NULL; + curr->next = item; + + return item; + } + +pitem * +pqueue_peek(pqueue_s *pq) + { + return pq->items; + } + +pitem * +pqueue_pop(pqueue_s *pq) + { + pitem *item = pq->items; + + if (pq->items != NULL) + pq->items = pq->items->next; + + return item; + } + +pitem * +pqueue_find(pqueue_s *pq, PQ_64BIT priority) + { + pitem *next, *prev = NULL; + pitem *found = NULL; + + if ( pq->items == NULL) + return NULL; + + for ( next = pq->items; next->next != NULL; + prev = next, next = next->next) + { + if ( pq_64bit_eq(&(next->priority), &priority)) + { + found = next; + break; + } + } + + /* check the one last node */ + if ( pq_64bit_eq(&(next->priority), &priority)) + found = next; + + if ( ! found) + return NULL; + +#if 0 /* find works in peek mode */ + if ( prev == NULL) + pq->items = next->next; + else + prev->next = next->next; +#endif + + return found; + } + +#if PQ_64BIT_IS_INTEGER +void +pqueue_print(pqueue_s *pq) + { + pitem *item = pq->items; + + while(item != NULL) + { + printf("item\t" PQ_64BIT_PRINT "\n", item->priority); + item = item->next; + } + } +#endif + +pitem * +pqueue_iterator(pqueue_s *pq) + { + return pqueue_peek(pq); + } + +pitem * +pqueue_next(pitem **item) + { + pitem *ret; + + if ( item == NULL || *item == NULL) + return NULL; + + + /* *item != NULL */ + ret = *item; + *item = (*item)->next; + + return ret; + } diff --git a/openssl/crypto/pqueue/pqueue.h b/openssl/crypto/pqueue/pqueue.h new file mode 100644 index 000000000..02386d130 --- /dev/null +++ b/openssl/crypto/pqueue/pqueue.h @@ -0,0 +1,95 @@ +/* crypto/pqueue/pqueue.h */ +/* + * DTLS implementation written by Nagendra Modadugu + * (nagendra@cs.stanford.edu) for the OpenSSL project 2005. + */ +/* ==================================================================== + * Copyright (c) 1999-2005 The OpenSSL Project. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * + * 3. All advertising materials mentioning features or use of this + * software must display the following acknowledgment: + * "This product includes software developed by the OpenSSL Project + * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)" + * + * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to + * endorse or promote products derived from this software without + * prior written permission. For written permission, please contact + * openssl-core@OpenSSL.org. + * + * 5. Products derived from this software may not be called "OpenSSL" + * nor may "OpenSSL" appear in their names without prior written + * permission of the OpenSSL Project. + * + * 6. Redistributions of any form whatsoever must retain the following + * acknowledgment: + * "This product includes software developed by the OpenSSL Project + * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)" + * + * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY + * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR + * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED + * OF THE POSSIBILITY OF SUCH DAMAGE. + * ==================================================================== + * + * This product includes cryptographic software written by Eric Young + * (eay@cryptsoft.com). This product includes software written by Tim + * Hudson (tjh@cryptsoft.com). + * + */ + +#ifndef HEADER_PQUEUE_H +#define HEADER_PQUEUE_H + +#include <stdio.h> +#include <stdlib.h> +#include <string.h> + +#include <openssl/pq_compat.h> + +typedef struct _pqueue *pqueue; + +typedef struct _pitem + { + PQ_64BIT priority; + void *data; + struct _pitem *next; + } pitem; + +typedef struct _pitem *piterator; + +pitem *pitem_new(PQ_64BIT priority, void *data); +void pitem_free(pitem *item); + +pqueue pqueue_new(void); +void pqueue_free(pqueue pq); + +pitem *pqueue_insert(pqueue pq, pitem *item); +pitem *pqueue_peek(pqueue pq); +pitem *pqueue_pop(pqueue pq); +pitem *pqueue_find(pqueue pq, PQ_64BIT priority); +pitem *pqueue_iterator(pqueue pq); +pitem *pqueue_next(piterator *iter); + +void pqueue_print(pqueue pq); + +#endif /* ! HEADER_PQUEUE_H */ |