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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-09 13:34:27 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-09 13:34:27 +0000
commit4dbdc42d9e7c3968ff7f690d00680419c9b8cb0f (patch)
tree47c1d492e9c956c1cd2b74dbd3b9d8b0db44dc4e /compat/nonblock.c
parentInitial commit. (diff)
downloadgit-4dbdc42d9e7c3968ff7f690d00680419c9b8cb0f.tar.xz
git-4dbdc42d9e7c3968ff7f690d00680419c9b8cb0f.zip
Adding upstream version 1:2.43.0.upstream/1%2.43.0
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'compat/nonblock.c')
-rw-r--r--compat/nonblock.c50
1 files changed, 50 insertions, 0 deletions
diff --git a/compat/nonblock.c b/compat/nonblock.c
new file mode 100644
index 0000000..5b51195
--- /dev/null
+++ b/compat/nonblock.c
@@ -0,0 +1,50 @@
+#include "git-compat-util.h"
+#include "nonblock.h"
+
+#ifdef O_NONBLOCK
+
+int enable_pipe_nonblock(int fd)
+{
+ int flags = fcntl(fd, F_GETFL);
+ if (flags < 0)
+ return -1;
+ flags |= O_NONBLOCK;
+ return fcntl(fd, F_SETFL, flags);
+}
+
+#elif defined(GIT_WINDOWS_NATIVE)
+
+#include "win32.h"
+
+int enable_pipe_nonblock(int fd)
+{
+ HANDLE h = (HANDLE)_get_osfhandle(fd);
+ DWORD mode;
+ DWORD type = GetFileType(h);
+ if (type == FILE_TYPE_UNKNOWN && GetLastError() != NO_ERROR) {
+ errno = EBADF;
+ return -1;
+ }
+ if (type != FILE_TYPE_PIPE)
+ BUG("unsupported file type: %lu", type);
+ if (!GetNamedPipeHandleState(h, &mode, NULL, NULL, NULL, NULL, 0)) {
+ errno = err_win_to_posix(GetLastError());
+ return -1;
+ }
+ mode |= PIPE_NOWAIT;
+ if (!SetNamedPipeHandleState(h, &mode, NULL, NULL)) {
+ errno = err_win_to_posix(GetLastError());
+ return -1;
+ }
+ return 0;
+}
+
+#else
+
+int enable_pipe_nonblock(int fd UNUSED)
+{
+ errno = ENOSYS;
+ return -1;
+}
+
+#endif