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Merge pull request #535 from ken-tilera/master

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Optimize atomics implementaiton for the Tile architecture
This commit is contained in:
Pieter Hintjens 2013-03-20 10:34:48 -07:00
commit 5ba7445b7a
3 changed files with 19 additions and 0 deletions
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1
AUTHORS
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@ -41,6 +41,7 @@ Jacob Rideout <jacob.rideout@returnpath.net>
Joe Thornber <joe.thornber@gmail.com>
Jon Dyte <jon@totient.co.uk>
Kamil Shakirov <kamils80@gmail.com>
Ken Steele <ken@tilera.com>
Marc Rossi <mrossi19@gmail.com>
Martin Hurton <hurtonm@gmail.com>
Martin Lucina <martin@lucina.net>

10
src/atomic_counter.hpp
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@ -33,6 +33,8 @@
#define ZMQ_ATOMIC_COUNTER_WINDOWS
#elif (defined ZMQ_HAVE_SOLARIS || defined ZMQ_HAVE_NETBSD)
#define ZMQ_ATOMIC_COUNTER_ATOMIC_H
#elif defined __tile__
#define ZMQ_ATOMIC_COUNTER_TILE
#else
#define ZMQ_ATOMIC_COUNTER_MUTEX
#endif
@ -43,6 +45,8 @@
#include "windows.hpp"
#elif defined ZMQ_ATOMIC_COUNTER_ATOMIC_H
#include <atomic.h>
#elif defined ZMQ_ATOMIC_COUNTER_TILE
#include <arch/atomic.h>
#endif
namespace zmq
@ -82,6 +86,8 @@ namespace zmq
#elif defined ZMQ_ATOMIC_COUNTER_ATOMIC_H
integer_t new_value = atomic_add_32_nv (&value, increment_);
old_value = new_value - increment_;
#elif defined ZMQ_ATOMIC_COUNTER_TILE
old_value = arch_atomic_add (&value, increment_);
#elif defined ZMQ_ATOMIC_COUNTER_X86
__asm__ volatile (
"lock; xadd %0, %1 \n\t"
@ -123,6 +129,10 @@ namespace zmq
int32_t delta = - ((int32_t) decrement);
integer_t nv = atomic_add_32_nv (&value, delta);
return nv != 0;
#elif defined ZMQ_ATOMIC_COUNTER_TILE
int32_t delta = - ((int32_t) decrement);
integer_t nv = arch_atomic_add (&value, delta);
return nv != 0;
#elif defined ZMQ_ATOMIC_COUNTER_X86
integer_t oldval = -decrement;
volatile integer_t *val = &value;

8
src/atomic_ptr.hpp
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@ -28,6 +28,8 @@
#define ZMQ_ATOMIC_PTR_X86
#elif defined __ARM_ARCH_7A__ && defined __GNUC__
#define ZMQ_ATOMIC_PTR_ARM
#elif defined __tile__
#define ZMQ_ATOMIC_PTR_TILE
#elif defined ZMQ_HAVE_WINDOWS
#define ZMQ_ATOMIC_PTR_WINDOWS
#elif (defined ZMQ_HAVE_SOLARIS || defined ZMQ_HAVE_NETBSD)
@ -42,6 +44,8 @@
#include "windows.hpp"
#elif defined ZMQ_ATOMIC_PTR_ATOMIC_H
#include <atomic.h>
#elif defined ZMQ_ATOMIC_PTR_TILE
#include <arch/atomic.h>
#endif
namespace zmq
@ -80,6 +84,8 @@ namespace zmq
return (T*) InterlockedExchangePointer ((PVOID*) &ptr, val_);
#elif defined ZMQ_ATOMIC_PTR_ATOMIC_H
return (T*) atomic_swap_ptr (&ptr, val_);
#elif defined ZMQ_ATOMIC_PTR_TILE
return (T*) arch_atomic_exchange (&ptr, val_);
#elif defined ZMQ_ATOMIC_PTR_X86
T *old;
__asm__ volatile (
@ -123,6 +129,8 @@ namespace zmq
(volatile PVOID*) &ptr, val_, cmp_);
#elif defined ZMQ_ATOMIC_PTR_ATOMIC_H
return (T*) atomic_cas_ptr (&ptr, cmp_, val_);
#elif defined ZMQ_ATOMIC_PTR_TILE
return (T*) arch_atomic_val_compare_and_exchange (&ptr, cmp_, val_);
#elif defined ZMQ_ATOMIC_PTR_X86
T *old;
__asm__ volatile (