Function alloc 

#[unsafe(no_mangle)]
pub extern "C" fn alloc(len: u32) -> *mut u8

Allocates a buffer of the specified length and returns a pointer to it.

This function allocates a buffer of len bytes using a Vec<u8> and returns a mutable pointer to the allocated buffer. The Vec is created with a capacity of len, and its ownership is immediately transferred to the caller through the returned pointer. The allocated buffer must be deallocated using the dealloc function to prevent memory leaks.

Arguments

• len - The length of the buffer to allocate, in bytes.

Returns

A mutable pointer to the allocated buffer of the specified length.

Safety

This function is marked as unsafe because it returns a raw pointer to memory, and the caller is responsible for ensuring the proper deallocation of the buffer to avoid memory leaks.

Examples

use plugy_core::guest::dealloc;
use plugy_core::guest::alloc;
let len: u32 = 1024;
let buffer_ptr = alloc(len);
// Use the allocated buffer...
// Remember to deallocate the buffer when it's no longer needed.
unsafe { dealloc(buffer_ptr as u64) };