-/* crypto/async/arch/async_posix.c */
/*
- * Written by Matt Caswell (matt@openssl.org) for the OpenSSL project.
- */
-/* ====================================================================
- * Copyright (c) 2015 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
- * licensing@OpenSSL.org.
+ * Copyright 2015-2016 The OpenSSL Project Authors. All Rights Reserved.
*
- * 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.
- * ====================================================================
+ * Licensed under the Apache License 2.0 (the "License"). You may not use
+ * this file except in compliance with the License. You can obtain a copy
+ * in the file LICENSE in the source distribution or at
+ * https://www.openssl.org/source/license.html
*/
-#include "../async_locl.h"
-#include <openssl/async.h>
+/* This must be the first #include file */
+#include "../async_local.h"
+
+#ifdef ASYNC_POSIX
-#ifdef ASYNC_SYSV
# include <stddef.h>
-# include <ucontext.h>
# include <unistd.h>
-# include <openssl/crypto.h>
-# include <openssl/async.h>
-
-__thread ASYNC_CTX *sysvctx;
#define STACKSIZE 32768
-__thread size_t pool_max_size = 0;
-__thread size_t pool_curr_size = 0;
-__thread STACK_OF(ASYNC_JOB) *pool = NULL;
-
-int ASYNC_FIBRE_init(ASYNC_FIBRE *fibre)
+int ASYNC_is_capable(void)
{
- void *stack = NULL;
+ ucontext_t ctx;
- if (!(stack = OPENSSL_malloc(STACKSIZE))) {
- return 0;
- }
-
- fibre->fibre.uc_stack.ss_sp = stack;
- fibre->fibre.uc_stack.ss_size = STACKSIZE;
- fibre->fibre.uc_link = NULL;
- fibre->env_init = 0;
-
- return 1;
-}
-
-void ASYNC_FIBRE_free(ASYNC_FIBRE *fibre)
-{
- if (fibre->fibre.uc_stack.ss_sp)
- OPENSSL_free(fibre->fibre.uc_stack.ss_sp);
-}
-
-int async_pipe(int *pipefds)
-{
- if (pipe(pipefds) == 0)
- return 1;
-
- return 0;
+ /*
+ * Some platforms provide getcontext() but it does not work (notably
+ * MacOSX PPC64). Check for a working getcontext();
+ */
+ return getcontext(&ctx) == 0;
}
-int async_write1(int fd, const void *buf)
+void async_local_cleanup(void)
{
- if (write(fd, buf, 1) > 0)
- return 1;
-
- return 0;
}
-int async_read1(int fd, void *buf)
+int async_fibre_makecontext(async_fibre *fibre)
{
- if (read(fd, buf, 1) > 0)
- return 1;
-
+ fibre->env_init = 0;
+ if (getcontext(&fibre->fibre) == 0) {
+ fibre->fibre.uc_stack.ss_sp = OPENSSL_malloc(STACKSIZE);
+ if (fibre->fibre.uc_stack.ss_sp != NULL) {
+ fibre->fibre.uc_stack.ss_size = STACKSIZE;
+ fibre->fibre.uc_link = NULL;
+ makecontext(&fibre->fibre, async_start_func, 0);
+ return 1;
+ }
+ } else {
+ fibre->fibre.uc_stack.ss_sp = NULL;
+ }
return 0;
}
-STACK_OF(ASYNC_JOB) *async_get_pool(void)
-{
- return pool;
-}
-
-int async_set_pool(STACK_OF(ASYNC_JOB) *poolin, size_t curr_size,
- size_t max_size)
-{
- pool = poolin;
- pool_curr_size = curr_size;
- pool_max_size = max_size;
- return 1;
-}
-
-void async_increment_pool_size(void)
-{
- pool_curr_size++;
-}
-
-void async_release_job_to_pool(ASYNC_JOB *job)
-{
- sk_ASYNC_JOB_push(pool, job);
-}
-
-size_t async_pool_max_size(void)
-{
- return pool_max_size;
-}
-
-void async_release_pool(void)
-{
- sk_ASYNC_JOB_free(pool);
- pool = NULL;
-}
-
-int async_pool_can_grow(void)
+void async_fibre_free(async_fibre *fibre)
{
- return (pool_max_size == 0) || (pool_curr_size < pool_max_size);
+ OPENSSL_free(fibre->fibre.uc_stack.ss_sp);
+ fibre->fibre.uc_stack.ss_sp = NULL;
}
#endif
projects / thirdparty / openssl.git / blobdiff