allocator.cpp

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#include <stdlib.h>
 
#include "fl/allocator.h"
#include "fl/namespace.h"
 
#ifdef ESP32
#include "esp_heap_caps.h"
#include "esp_system.h"
#endif
 
namespace fl {
 
namespace {
 
#ifdef ESP32
// On esp32, attempt to always allocate in psram first.
void *DefaultAlloc(size_t size) {
    void *out = heap_caps_malloc(size, MALLOC_CAP_SPIRAM);
    if (out == nullptr) {
        // Fallback to default allocator.
        out = heap_caps_malloc(size, MALLOC_CAP_DEFAULT);
    }
    return out;
}
void DefaultFree(void *ptr) { heap_caps_free(ptr); }
#else
void *DefaultAlloc(size_t size) { return malloc(size); }
void DefaultFree(void *ptr) { free(ptr); }
#endif
 
void *(*Alloc)(size_t) = DefaultAlloc;
void (*Free)(void *) = DefaultFree;
} // namespace
 
void SetLargeBlockAllocator(void *(*alloc)(size_t), void (*free)(void *)) {
    Alloc = alloc;
    Free = free;
}
 
void *LargeBlockAllocate(size_t size, bool zero) {
    void *ptr = Alloc(size);
    if (zero) {
        memset(ptr, 0, size);
    }
    return ptr;
}
 
void LargeBlockDeallocate(void *ptr) { Free(ptr); }
 
} // namespace fl