Commit 37fcee5d authored by Fam Zheng's avatar Fam Zheng Committed by Stefan Hajnoczi
Browse files

aio: Introduce aio_context_setup 



This is the place to initialize platform specific bits of AioContext.

Signed-off-by: default avatarFam Zheng <famz@redhat.com>
Message-id: 1446177989-6702-3-git-send-email-famz@redhat.com
Signed-off-by: default avatarStefan Hajnoczi <stefanha@redhat.com>
parent 5ceb9e39

aio-posix.c

+4 −0
Original line number Diff line number Diff line
@@ -302,3 +302,7 @@ bool aio_poll(AioContext *ctx, bool blocking) 


    return progress;

}



void aio_context_setup(AioContext *ctx, Error **errp)

{

}

aio-win32.c

+4 −0
Original line number Diff line number Diff line
@@ -369,3 +369,7 @@ bool aio_poll(AioContext *ctx, bool blocking) 
    aio_context_release(ctx);

    return progress;

}



void aio_context_setup(AioContext *ctx, Error **errp)

{

}

async.c

+11 −2
Original line number Diff line number Diff line
@@ -325,12 +325,18 @@ AioContext *aio_context_new(Error **errp) 
{

    int ret;

    AioContext *ctx;

    Error *local_err = NULL;



    ctx = (AioContext *) g_source_new(&aio_source_funcs, sizeof(AioContext));

    aio_context_setup(ctx, &local_err);

    if (local_err) {

        error_propagate(errp, local_err);

        goto fail;

    }

    ret = event_notifier_init(&ctx->notifier, false);

    if (ret < 0) {

        g_source_destroy(&ctx->source);

        error_setg_errno(errp, -ret, "Failed to initialize event notifier");

        return NULL;

        goto fail;

    }

    g_source_set_can_recurse(&ctx->source, true);

    aio_set_event_notifier(ctx, &ctx->notifier,
@@ -345,6 +351,9 @@ AioContext *aio_context_new(Error **errp) 
    ctx->notify_dummy_bh = aio_bh_new(ctx, notify_dummy_bh, NULL);



    return ctx;

fail:

    g_source_destroy(&ctx->source);

    return NULL;

}



void aio_context_ref(AioContext *ctx)

include/block/aio.h

+8 −0
Original line number Diff line number Diff line
@@ -429,4 +429,12 @@ static inline bool aio_node_check(AioContext *ctx, bool is_external) 
    return !is_external || !atomic_read(&ctx->external_disable_cnt);

}



/**

 * aio_context_setup:

 * @ctx: the aio context

 *

 * Initialize the aio context.

 */

void aio_context_setup(AioContext *ctx, Error **errp);



#endif