Method new_memory

crates/wasmtime/src/runtime/vm/memory.rs:131–155

Create new MmapMemory

(
        &self,
        ty: &wasmtime_environ::Memory,
        memory_tunables: &MemoryTunables<'_>,
        minimum: usize,
        maximum: Option<usize>,
    )

impl RuntimeMemoryCreator for DefaultMemoryCreator {
    /// Create new MmapMemory
    fn new_memory(
        &self,
        ty: &wasmtime_environ::Memory,
        memory_tunables: &MemoryTunables<'_>,
        minimum: usize,
        maximum: Option<usize>,
    ) -> Result<Box<dyn RuntimeLinearMemory>> {
        #[cfg(has_virtual_memory)]
        if memory_tunables.tunables().signals_based_traps
            || memory_tunables.guard_size() > 0
            || memory_tunables.reservation() > 0
            || memory_tunables.tunables().memory_init_cow
        {
            return Ok(
                try_new::<Box<_>>(MmapMemory::new(ty, memory_tunables, minimum, maximum)?)?
                    as Box<dyn RuntimeLinearMemory>,
            );
        }

        let _ = maximum;
        Ok(
            try_new::<Box<_>>(MallocMemory::new(ty, memory_tunables, minimum)?)?
                as Box<dyn RuntimeLinearMemory>,
        )
    }
}

/// A linear memory and its backing storage.