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os: wrap socket(SOCK_CLOEXEC) calls

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Some system C libraries do not offer SOCK_CLOEXEC flag.

Add a new header for OS compatibility wrappers. Wrap socket() calls into
wl_os_socket_cloexec() which makes sure the O_CLOEXEC flag gets set on
the file descriptor.

On systems having SOCK_CLOEXEC this uses the old socket() call, and
falls back if it fails due to the flag (kernel not supporting it).

wayland-os.h is private and not exported.

Add close-on-exec tests for both normal and forced fallback paths.

Signed-off-by: Pekka Paalanen <ppaalanen@gmail.com>
This commit is contained in:
Pekka Paalanen 2012-03-21 11:11:26 +02:00
parent da6b1a8e47
commit 7134a439c1
7 changed files with 211 additions and 3 deletions
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2
src/Makefile.am
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@ -14,6 +14,8 @@ libwayland_util_la_SOURCES = \
connection.c \
wayland-util.c \
wayland-util.h \
wayland-os.c \
wayland-os.h \
wayland-private.h
libwayland_server_la_LIBADD = $(FFI_LIBS) libwayland-util.la -lrt