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Convert __thread to pthreads for Thread Local Storage

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In theory the pthreads approach for Thread Local Storage should be more
portable.

This also changes some APIs in order to accommodate this change. In
particular ASYNC_init_pool is renamed ASYNC_init_thread and
ASYNC_free_pool is renamed ASYNC_cleanup_thread. Also introduced ASYNC_init
and ASYNC_cleanup.

Reviewed-by: Rich Salz <rsalz@openssl.org>
This commit is contained in:
Matt Caswell
2015-11-13 23:54:44 +00:00
parent 27949c353e
commit 68487a9b06
12 changed files with 122 additions and 74 deletions
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16
crypto/async/arch/async_posix.h
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@@ -52,12 +52,14 @@
*/
#include <openssl/e_os2.h>
#ifdef OPENSSL_SYS_UNIX
#if defined(OPENSSL_SYS_UNIX) && defined(OPENSSL_THREADS)
# include <unistd.h>
# if _POSIX_VERSION >= 200112L
# include <pthread.h>
# define ASYNC_POSIX
# define ASYNC_ARCH
@@ -73,8 +75,8 @@
# include <setjmp.h>
# include "e_os.h"
extern __thread async_ctx *posixctx;
extern __thread async_pool *posixpool;
extern pthread_key_t posixctx;
extern pthread_key_t posixpool;
typedef struct async_fibre_st {
ucontext_t fibre;
@@ -82,10 +84,10 @@ typedef struct async_fibre_st {
int env_init;
} async_fibre;
# define async_set_ctx(nctx) (posixctx = (nctx))
# define async_get_ctx() (posixctx)
# define async_set_pool(p) (posixpool = (p))
# define async_get_pool() (posixpool)
# define async_set_ctx(nctx) (pthread_setspecific(posixctx , (nctx)) == 0)
# define async_get_ctx() ((async_ctx *)pthread_getspecific(posixctx))
# define async_set_pool(p) (pthread_setspecific(posixpool , (p)) == 0)
# define async_get_pool() ((async_pool *)pthread_getspecific(posixpool))
static inline int async_fibre_swapcontext(async_fibre *o, async_fibre *n, int r)
{