openssl/crypto/async/arch/async_posix.c
Dr. Matthias St. Pierre b5acbf9148 Reorganize local header files
Apart from public and internal header files, there is a third type called
local header files, which are located next to source files in the source
directory. Currently, they have different suffixes like

  '*_lcl.h', '*_local.h', or '*_int.h'

This commit changes the different suffixes to '*_local.h' uniformly.

Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/9681)
2019-09-27 23:58:06 +02:00

58 lines
1.4 KiB
C

/*
* Copyright 2015-2016 The OpenSSL Project Authors. All Rights Reserved.
*
* Licensed under the OpenSSL license (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
*/
/* This must be the first #include file */
#include "../async_local.h"
#ifdef ASYNC_POSIX
# include <stddef.h>
# include <unistd.h>
#define STACKSIZE 32768
int ASYNC_is_capable(void)
{
ucontext_t ctx;
/*
* Some platforms provide getcontext() but it does not work (notably
* MacOSX PPC64). Check for a working getcontext();
*/
return getcontext(&ctx) == 0;
}
void async_local_cleanup(void)
{
}
int async_fibre_makecontext(async_fibre *fibre)
{
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;
}
void async_fibre_free(async_fibre *fibre)
{
OPENSSL_free(fibre->fibre.uc_stack.ss_sp);
fibre->fibre.uc_stack.ss_sp = NULL;
}
#endif