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lib: xpc: implement writing to local buffers

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max 🍓
2026-03-15 09:43:00 +00:00
parent c9ccebacfc
commit ea2b0d3986
2 changed files with 16 additions and 3 deletions
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10
lib/libxpc/buffer.c
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@@ -1,4 +1,5 @@
#include <mango/status.h>
#include <string.h>
#include <xpc/buffer.h>
#include <xpc/msg.h>
@@ -36,8 +37,7 @@ kern_status_t xpc_buffer_write(
size_t len,
size_t *nr_written)
{
if ((buf->buf_flags & (XPC_BUFFER_F_OUT | XPC_BUFFER_F_REMOTE))
!= (XPC_BUFFER_F_OUT | XPC_BUFFER_F_REMOTE)) {
if (!(buf->buf_flags & XPC_BUFFER_F_OUT)) {
return KERN_BAD_STATE;
}
@@ -46,6 +46,12 @@ kern_status_t xpc_buffer_write(
to_write = buf->buf_max;
}
if (!(buf->buf_flags & XPC_BUFFER_F_REMOTE)) {
memcpy(buf->buf_ptr, in, to_write);
*nr_written = to_write;
return KERN_OK;
}
kern_status_t status
= xpc_msg_write(buf->buf_origin, buf->buf_offset, in, to_write);
if (status != KERN_OK) {