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gallium: Drop mutex-based pipe_atomic implementation.

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First step to severe the dependency in OS abstractions from the Gallium
interfaces.
This commit is contained in:
José Fonseca 2010-02-01 14:23:36 +00:00
parent 5cc20a06b0
commit 7827bc73c7
1 changed files with 1 additions and 82 deletions
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83
src/gallium/include/pipe/p_atomic.h
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@ -35,7 +35,7 @@ extern "C" {
#elif defined(PIPE_CC_GCC)
#define PIPE_ATOMIC_GCC_INTRINSIC
#else
#define PIPE_ATOMIC_MUTEX
#error "Unsupported platform"
#endif
@ -259,87 +259,6 @@ p_atomic_cmpxchg(struct pipe_atomic *v, int32_t old, int32_t _new)
#if defined(PIPE_ATOMIC_MUTEX)
#define PIPE_ATOMIC "mutex-based fallback"
#include "pipe/p_thread.h"
/**
* This implementation should really not be used.
* Add an assembly port instead. It may abort and
* doesn't destroy used mutexes.
*/
struct pipe_atomic {
pipe_mutex mutex;
int32_t count;
};
static INLINE void
p_atomic_set(struct pipe_atomic *v, int32_t i)
{
pipe_mutex_init(v->mutex);
pipe_mutex_lock(v->mutex);
v->count = i;
pipe_mutex_unlock(v->mutex);
}
static INLINE int32_t
p_atomic_read(struct pipe_atomic *v)
{
int32_t ret;
pipe_mutex_lock(v->mutex);
ret = v->count;
pipe_mutex_unlock(v->mutex);
return ret;
}
static INLINE void
p_atomic_inc(struct pipe_atomic *v)
{
pipe_mutex_lock(v->mutex);
++v->count;
pipe_mutex_unlock(v->mutex);
}
static INLINE void
p_atomic_dec(struct pipe_atomic *v)
{
pipe_mutex_lock(v->mutex);
--v->count;
pipe_mutex_unlock(v->mutex);
}
static INLINE boolean
p_atomic_dec_zero(struct pipe_atomic *v)
{
boolean ret;
pipe_mutex_lock(v->mutex);
ret = (--v->count == 0);
pipe_mutex_unlock(v->mutex);
return ret;
}
static INLINE int32_t
p_atomic_cmpxchg(struct pipe_atomic *v, int32_t old, int32_t _new)
{
int32_t ret;
pipe_mutex_lock(v->mutex);
ret = v->count;
if (ret == old)
v->count = _new;
pipe_mutex_unlock(v->mutex);
return ret;
}
#endif
#ifndef PIPE_ATOMIC
#error "No pipe_atomic implementation selected"
#endif