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| author | Jeremy Allison <jra@samba.org> | 2012-04-20 15:53:55 -0700 |
|---|---|---|
| committer | Jeremy Allison <jra@samba.org> | 2012-04-23 09:19:16 -0700 |
| commit | fbaaf4b21fd7253d333261ba925e8f40122335e8 (patch) | |
| tree | 6e0c1250a214e6f9e77b089e2da37a616f07e620 | |
| parent | 5960b7b2a44161dba5dc96e6973e1fcc92b14bdd (diff) | |
| download | samba-fbaaf4b21fd7253d333261ba925e8f40122335e8.tar.gz samba-fbaaf4b21fd7253d333261ba925e8f40122335e8.tar.bz2 samba-fbaaf4b21fd7253d333261ba925e8f40122335e8.zip | |
Add complete test program for Linux kernel aio inside configure.in (I discovered yesterday there are systems with only half the glibc changes needed to implement userspace kaio.
| -rw-r--r-- | source3/configure.in | 34 |
1 files changed, 28 insertions, 6 deletions
diff --git a/source3/configure.in b/source3/configure.in index 35bbe2873c..56112e9ca5 100644 --- a/source3/configure.in +++ b/source3/configure.in @@ -5545,12 +5545,34 @@ if test x"$samba_cv_HAVE_AIO" = x"yes"; then # Check for Linux kernel aio support. case "$host_os" in *linux*) - AC_MSG_CHECKING(for Linux kernel asynchronous io support) - AC_CHECK_LIB(aio,io_submit, - [AIO_LIBS="$LIBS -laio"; - AC_DEFINE(HAVE_LINUX_KERNEL_AIO, 1, Define to 1 if there is support for Linux kernel asynchronous io)], - []) - if test x"$ac_cv_lib_aio_io_submit" = x"yes"; then + AC_CHECK_LIB(aio,io_submit,[AIO_LIBS="$LIBS -laio"]) + AC_CACHE_CHECK([for Linux kernel asynchronous io support],samba_cv_HAVE_LINUX_KERNEL_AIO,[ + aio_LIBS=$LIBS + LIBS=$AIO_LIBS + AC_TRY_LINK([#include <unistd.h> +#include <stdlib.h> +#include <sys/types.h> +#include <fcntl.h> +#include <sys/eventfd.h> +#include <libaio.h>], +[ struct io_event ioev; +struct iocb *ioc; +io_context_t ctx; +struct timespec ts; +int fd; +char *buf; +fd = eventfd(0, EFD_NONBLOCK | EFD_CLOEXEC); +io_queue_init(128,&ctx); +io_prep_pwrite(ioc, 1, buf, 1, 0); +io_prep_pread(ioc, 1, buf, 1, 0); +io_set_eventfd(ioc, fd); +io_set_callback(ioc, (io_callback_t)(0)); +io_submit(ctx, 1, &ioc); +io_getevents(ctx, 1, 1, &ioev, &ts);], +samba_cv_HAVE_LINUX_KERNEL_AIO=yes,samba_cv_HAVE_LINUX_KERNEL_AIO=no) + LIBS=$aio_LIBS]) + if test x"$samba_cv_HAVE_LINUX_KERNEL_AIO" = x"yes"; then + AC_DEFINE(WITH_AIO, 1, [Using asynchronous io]) default_shared_modules="$default_shared_modules vfs_aio_linux" fi ;; |