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win,process: allow child pipe handles to be opened in overlapped mode

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PR-URL: https://github.com/libuv/libuv/pull/1784
Reviewed-By: Bartosz Sosnowski <bartosz@janeasystems.com>
Reviewed-By: Bert Belder <bertbelder@gmail.com>
This commit is contained in:
Björn Linse 2018-03-28 19:07:29 +02:00 committed by Bert Belder
parent 02e358fa45
commit 62a0f763a7
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GPG Key ID: 7A77887B2E2ED461
3 changed files with 14 additions and 2 deletions
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5
docs/src/process.rst
View File

@ -109,6 +109,11 @@ Data types
*/
UV_READABLE_PIPE = 0x10,
UV_WRITABLE_PIPE = 0x20
/*
* Open the child pipe handle in overlapped mode on Windows.
* On Unix it is silently ignored.
*/
UV_OVERLAPPED_PIPE = 0x40
} uv_stdio_flags;

8
include/uv.h
View File

@ -866,7 +866,13 @@ typedef enum {
* flags may be specified to create a duplex data stream.
*/
UV_READABLE_PIPE = 0x10,
UV_WRITABLE_PIPE = 0x20
UV_WRITABLE_PIPE = 0x20,
/*
* Open the child pipe handle in overlapped mode on Windows.
* On Unix it is silently ignored.
*/
UV_OVERLAPPED_PIPE = 0x40
} uv_stdio_flags;
typedef struct uv_stdio_container_s {

3
src/win/process-stdio.c
View File

@ -131,12 +131,13 @@ static int uv__create_stdio_pipe_pair(uv_loop_t* loop,
sa.lpSecurityDescriptor = NULL;
sa.bInheritHandle = TRUE;
BOOL overlap = server_pipe->ipc || (flags & UV_OVERLAPPED_PIPE);
child_pipe = CreateFileA(pipe_name,
client_access,
0,
&sa,
OPEN_EXISTING,
server_pipe->ipc ? FILE_FLAG_OVERLAPPED : 0,
overlap ? FILE_FLAG_OVERLAPPED : 0,
NULL);
if (child_pipe == INVALID_HANDLE_VALUE) {
err = GetLastError();