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Cygwin: pipe: Fix handling of EPIPE and SIGPIPE in raw_write().

This commit is contained in:
Takashi Yano 2021-09-14 20:59:08 +09:00 committed by Corinna Vinschen
parent e4e4537979
commit a217fa98fd
1 changed files with 9 additions and 1 deletions
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10
winsup/cygwin/fhandler_pipe.cc
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@ -407,6 +407,13 @@ fhandler_pipe_fifo::raw_write (const void *ptr, size_t len)
if (!len) if (!len)
return 0; return 0;
if (reader_closed ())
{
set_errno (EPIPE);
raise (SIGPIPE);
return -1;
}
if (len <= pipe_buf_size) if (len <= pipe_buf_size)
chunk = len; chunk = len;
else if (is_nonblocking ()) else if (is_nonblocking ())
@ -475,7 +482,7 @@ fhandler_pipe_fifo::raw_write (const void *ptr, size_t len)
CancelIo (get_handle ()); CancelIo (get_handle ());
set_errno (EPIPE); set_errno (EPIPE);
raise (SIGPIPE); raise (SIGPIPE);
break; goto out;
} }
else else
cygwait (select_sem, 10); cygwait (select_sem, 10);
@ -527,6 +534,7 @@ fhandler_pipe_fifo::raw_write (const void *ptr, size_t len)
if (nbytes_now == 0) if (nbytes_now == 0)
break; break;
} }
out:
if (evt) if (evt)
CloseHandle (evt); CloseHandle (evt);
if (status == STATUS_THREAD_SIGNALED && nbytes == 0) if (status == STATUS_THREAD_SIGNALED && nbytes == 0)