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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 /source3/configure.in | |
| 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.
Diffstat (limited to 'source3/configure.in')
| -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 ;; |