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#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
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