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refact: remote printer, adapter dll, free data ptr (#11279)

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Signed-off-by: fufesou <linlong1266@gmail.com>
This commit is contained in:
fufesou
2025-03-28 21:58:46 +08:00
committed by GitHub
parent 4b14f86134
commit 23e70c0fd1
3 changed files with 15 additions and 8 deletions
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9
src/server/printer_service.rs
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@@ -17,6 +17,8 @@ pub type Uninit = fn();
// data: The raw prn data, xps format.
// data_len: The length of the raw prn data.
pub type GetPrnData = fn(dur_mills: u32, data: *mut *mut i8, data_len: *mut u32);
// Free the prn data allocated by GetPrnData().
pub type FreePrnData = fn(data: *mut i8);
macro_rules! make_lib_wrapper {
($($field:ident : $tp:ty),+) => {
@@ -78,7 +80,8 @@ macro_rules! make_lib_wrapper {
make_lib_wrapper!(
init: Init,
uninit: Uninit,
get_prn_data: GetPrnData
get_prn_data: GetPrnData,
free_prn_data: FreePrnData
);
lazy_static::lazy_static! {
@@ -135,9 +138,7 @@ fn get_prn_data(dur_mills: u32) -> ResultType<Vec<u8>> {
}
let bytes =
Vec::from(unsafe { std::slice::from_raw_parts(data as *const u8, data_len as usize) });
unsafe {
hbb_common::libc::free(data as *mut std::ffi::c_void);
}
lib_wrapper.free_prn_data.map(|f| f(data));
Ok(bytes)
} else {
bail!("Failed to load func get_prn_file");