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Add and use ISC_THREAD_LOCAL macro

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The new ISC_THREAD_LOCAL macro unifies usage of platform dependent
Thread Local Storage definition thread_local vs __thread vs
__declspec(thread) to a single macro.

The commit also unifies the required level of support for TLS as for
some parts of the code it was mandatory and for some parts of the code
it wasn't.
This commit is contained in:
Ondřej Surý
2019-12-02 11:42:50 +01:00
committed by Ondřej Surý
parent 96475e7eb4
commit 01731d4b1b
10 changed files with 35 additions and 111 deletions
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15
lib/isc/netmgr/netmgr.c
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@@ -40,20 +40,7 @@
* request using async_cb.
*/
#if defined(HAVE_TLS)
#if defined(HAVE_THREAD_LOCAL)
#include <threads.h>
static thread_local int isc__nm_tid_v = ISC_NETMGR_TID_UNKNOWN;
#elif defined(HAVE___THREAD)
static __thread int isc__nm_tid_v = ISC_NETMGR_TID_UNKNOWN;
#elif defined(HAVE___DECLSPEC_THREAD)
static __declspec( thread ) int isc__nm_tid_v = ISC_NETMGR_TID_UNKNOWN;
#else /* if defined(HAVE_THREAD_LOCAL) */
#error "Unknown method for defining a TLS variable!"
#endif /* if defined(HAVE_THREAD_LOCAL) */
#else /* if defined(HAVE_TLS) */
static int isc__nm_tid_v = ISC_NETMGR_TID_NOTLS;
#endif /* if defined(HAVE_TLS) */
ISC_THREAD_LOCAL int isc__nm_tid_v = ISC_NETMGR_TID_UNKNOWN;
static void
nmsocket_maybe_destroy(isc_nmsocket_t *sock);