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use super::*;
use crate::syscalls::*;
/// ### `args_get()`
/// Read command-line argument data.
/// The sizes of the buffers should match that returned by [`args_sizes_get()`](#args_sizes_get).
/// Inputs:
/// - `char **argv`
/// A pointer to a buffer to write the argument pointers.
/// - `char *argv_buf`
/// A pointer to a buffer to write the argument string data.
///
#[instrument(level = "trace", skip_all, ret)]
pub fn args_get<M: MemorySize>(
mut ctx: FunctionEnvMut<'_, WasiEnv>,
argv: WasmPtr<WasmPtr<u8, M>, M>,
argv_buf: WasmPtr<u8, M>,
) -> Errno {
let env = ctx.data();
let (memory, mut state) = unsafe { env.get_memory_and_wasi_state(&ctx, 0) };
let args = state
.args
.lock()
.unwrap()
.iter()
.map(|a| a.as_bytes().to_vec())
.collect::<Vec<_>>();
let result = write_buffer_array(&memory, &args, argv, argv_buf);
debug!(
"args:\n{}",
state
.args
.lock()
.unwrap()
.iter()
.enumerate()
.map(|(i, v)| format!("{i:>20}: {v}"))
.collect::<Vec<String>>()
.join("\n")
);
result
}