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#ifndef THC_GENERIC_FILE
#define THC_GENERIC_FILE "generic/THCStorage.c"
#else
real* THCStorage_(data)(THCState *state, const THCStorage *self)
{
return self->data;
}
long THCStorage_(size)(THCState *state, const THCStorage *self)
{
return self->size;
}
int THCStorage_(elementSize)(THCState *state)
{
return sizeof(real);
}
void THCStorage_(set)(THCState *state, THCStorage *self, long index, hostreal _value)
{
THArgCheck((index >= 0) && (index < self->size), 2, "index out of bounds");
real value = hostrealToReal(_value);
THCudaCheck(cudaMemcpy(self->data + index, &value, sizeof(real), cudaMemcpyHostToDevice));
}
hostreal THCStorage_(get)(THCState *state, const THCStorage *self, long index)
{
THArgCheck((index >= 0) && (index < self->size), 2, "index out of bounds");
#ifndef THC_REAL_IS_HALF
real value;
THCudaCheck(cudaMemcpy(&value, self->data + index, sizeof(real), cudaMemcpyDeviceToHost));
return realToHostreal(value);
#else
float *ret_d;
float ret;
THCudaCheck(THCudaMalloc(state, (void**)&ret_d, sizeof(float)));
THCHalf2Float(state, ret_d, self->data + index, 1);
THCudaCheck(cudaMemcpy(&ret, ret_d, sizeof(float), cudaMemcpyDeviceToHost));
THCudaFree(state, ret_d);
return ret;
#endif
}
THCStorage* THCStorage_(new)(THCState *state)
{
THCStorage *storage = (THCStorage*)THAlloc(sizeof(THCStorage));
storage->data = NULL;
storage->size = 0;
storage->refcount = 1;
storage->flag = TH_STORAGE_REFCOUNTED | TH_STORAGE_RESIZABLE | TH_STORAGE_FREEMEM;
return storage;
}
THCStorage* THCStorage_(newWithSize)(THCState *state, long size)
{
THArgCheck(size >= 0, 2, "invalid size");
if(size > 0)
{
THCStorage *storage = (THCStorage*)THAlloc(sizeof(THCStorage));
// update heap *before* attempting malloc, to free space for the malloc
THCHeapUpdate(state, size * sizeof(real));
cudaError_t err =
THCudaMalloc(state, (void**)&(storage->data), size * sizeof(real));
if(err != cudaSuccess){
THCHeapUpdate(state, -size * sizeof(real));
}
THCudaCheck(err);
storage->size = size;
storage->refcount = 1;
storage->flag = TH_STORAGE_REFCOUNTED | TH_STORAGE_RESIZABLE | TH_STORAGE_FREEMEM;
return storage;
}
else
{
return THCStorage_(new)(state);
}
}
THCStorage* THCStorage_(newWithSize1)(THCState *state, hostreal data0)
{
THCStorage *self = THCStorage_(newWithSize)(state, 1);
THCStorage_(set)(state, self, 0, data0);
return self;
}
THCStorage* THCStorage_(newWithSize2)(THCState *state, hostreal data0, hostreal data1)
{
THCStorage *self = THCStorage_(newWithSize)(state, 2);
THCStorage_(set)(state, self, 0, data0);
THCStorage_(set)(state, self, 1, data1);
return self;
}
THCStorage* THCStorage_(newWithSize3)(THCState *state, hostreal data0, hostreal data1, hostreal data2)
{
THCStorage *self = THCStorage_(newWithSize)(state, 3);
THCStorage_(set)(state, self, 0, data0);
THCStorage_(set)(state, self, 1, data1);
THCStorage_(set)(state, self, 2, data2);
return self;
}
THCStorage* THCStorage_(newWithSize4)(THCState *state, hostreal data0, hostreal data1, hostreal data2, hostreal data3)
{
THCStorage *self = THCStorage_(newWithSize)(state, 4);
THCStorage_(set)(state, self, 0, data0);
THCStorage_(set)(state, self, 1, data1);
THCStorage_(set)(state, self, 2, data2);
THCStorage_(set)(state, self, 3, data3);
return self;
}
THCStorage* THCStorage_(newWithMapping)(THCState *state, const char *fileName, long size, int isShared)
{
THError("not available yet for THCStorage");
return NULL;
}
THCStorage* THCStorage_(newWithData)(THCState *state, real *data, long size)
{
THCStorage *storage = (THCStorage*)THAlloc(sizeof(THCStorage));
storage->data = data;
storage->size = size;
storage->refcount = 1;
storage->flag = TH_STORAGE_REFCOUNTED | TH_STORAGE_RESIZABLE | TH_STORAGE_FREEMEM;
return storage;
}
void THCStorage_(setFlag)(THCState *state, THCStorage *storage, const char flag)
{
storage->flag |= flag;
}
void THCStorage_(clearFlag)(THCState *state, THCStorage *storage, const char flag)
{
storage->flag &= ~flag;
}
void THCStorage_(retain)(THCState *state, THCStorage *self)
{
if(self && (self->flag & TH_STORAGE_REFCOUNTED))
THAtomicIncrementRef(&self->refcount);
}
void THCStorage_(free)(THCState *state, THCStorage *self)
{
if(!(self->flag & TH_STORAGE_REFCOUNTED))
return;
if (THAtomicDecrementRef(&self->refcount))
{
if(self->flag & TH_STORAGE_FREEMEM) {
THCHeapUpdate(state, -self->size * sizeof(real));
THCudaCheck(THCudaFree(state, self->data));
}
THFree(self);
}
}
#endif
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