From b0cce7e1278a4e5b31b9d595c28d1d5d2e302051 Mon Sep 17 00:00:00 2001 From: Corinna Vinschen Date: Fri, 7 Sep 2001 08:31:16 +0000 Subject: [PATCH] * include/limits.h: Define PIPE_BUF. * syscalls.cc (fpathconf): Use PIPE_BUF instead of numerical constant. (pathconf): Ditto. --- winsup/cygwin/ChangeLog | 6 ++++++ winsup/cygwin/include/limits.h | 5 +++++ winsup/cygwin/syscalls.cc | 4 ++-- 3 files changed, 13 insertions(+), 2 deletions(-) diff --git a/winsup/cygwin/ChangeLog b/winsup/cygwin/ChangeLog index 55d6a64ee..cf7a74816 100644 --- a/winsup/cygwin/ChangeLog +++ b/winsup/cygwin/ChangeLog @@ -1,3 +1,9 @@ +Fri Sep 7 10:27:00 2001 Corinna Vinschen + + * include/limits.h: Define PIPE_BUF. + * syscalls.cc (fpathconf): Use PIPE_BUF instead of numerical constant. + (pathconf): Ditto. + Thu Sep 6 20:04:05 2001 Christopher Faylor * fhandler_socket.cc (fhandler_socket::fhandler_socket): Ensure that diff --git a/winsup/cygwin/include/limits.h b/winsup/cygwin/include/limits.h index 4a2ad3a8d..9eaac0b34 100644 --- a/winsup/cygwin/include/limits.h +++ b/winsup/cygwin/include/limits.h @@ -129,6 +129,11 @@ details. */ #undef OPEN_MAX #define OPEN_MAX 256 +/* # of bytes in a pipe buf. This is the max # of bytes which can be + written to a pipe in one atomic operation. */ +#undef PIPE_BUF +#define PIPE_BUF 4096 + /* POSIX values */ /* These should never vary from one system type to another */ /* They represent the minimum values that POSIX systems must support. diff --git a/winsup/cygwin/syscalls.cc b/winsup/cygwin/syscalls.cc index 6f26e882e..5e5566a4b 100644 --- a/winsup/cygwin/syscalls.cc +++ b/winsup/cygwin/syscalls.cc @@ -1533,7 +1533,7 @@ fpathconf (int fd, int v) case _PC_PATH_MAX: return PATH_MAX; case _PC_PIPE_BUF: - return 4096; + return PIPE_BUF; case _PC_CHOWN_RESTRICTED: case _PC_NO_TRUNC: return -1; @@ -1575,7 +1575,7 @@ pathconf (const char *file, int v) case _PC_MAX_INPUT: return _POSIX_MAX_CANON; case _PC_PIPE_BUF: - return 4096; + return PIPE_BUF; case _PC_CHOWN_RESTRICTED: case _PC_NO_TRUNC: return -1;