C++ (Cpp) halide_custom_malloc示例

示例#1

文件： architecture.arm_android.stdlib.cpp 项目： slippy0/Halide

 WEAK void *fast_malloc(size_t x) {
     if (halide_custom_malloc) {
         return halide_custom_malloc(x);
     } else {
         void *orig = malloc(x+32);
         // Round up to next multiple of 32. Should add at least 8 bytes so we can fit the original pointer.
         void *ptr = (void *)((((size_t)orig + 32) >> 5) << 5);
         ((void **)ptr)[-1] = orig;
         return ptr;
     }
 }

示例#2

文件： posix_allocator.cpp 项目： UIKit0/Halide

WEAK void *halide_malloc(size_t x) {
    if (halide_custom_malloc) {
        return halide_custom_malloc(x);
    } else {
        void *orig = malloc(x+32);
        if (orig == NULL) {
            // Will result in a failed assertion and a call to halide_error
            return NULL;
        }
        // Round up to next multiple of 32. Should add at least 8 bytes so we can fit the original pointer.
        void *ptr = (void *)((((size_t)orig + 32) >> 5) << 5);
        ((void **)ptr)[-1] = orig;
        return ptr;
    }
}