diff options
Diffstat (limited to 'include/qemu/coroutine.h')
| -rw-r--r-- | include/qemu/coroutine.h | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/include/qemu/coroutine.h b/include/qemu/coroutine.h index c828a95ee0..284571badb 100644 --- a/include/qemu/coroutine.h +++ b/include/qemu/coroutine.h @@ -343,4 +343,27 @@ void qemu_coroutine_decrease_pool_batch_size(unsigned int additional_pool_size); #include "qemu/lockable.h" +/** + * Sends a (part of) iovec down a socket, yielding when the socket is full, or + * Receives data into a (part of) iovec from a socket, + * yielding when there is no data in the socket. + * The same interface as qemu_sendv_recvv(), with added yielding. + * XXX should mark these as coroutine_fn + */ +ssize_t qemu_co_sendv_recvv(int sockfd, struct iovec *iov, unsigned iov_cnt, + size_t offset, size_t bytes, bool do_send); +#define qemu_co_recvv(sockfd, iov, iov_cnt, offset, bytes) \ + qemu_co_sendv_recvv(sockfd, iov, iov_cnt, offset, bytes, false) +#define qemu_co_sendv(sockfd, iov, iov_cnt, offset, bytes) \ + qemu_co_sendv_recvv(sockfd, iov, iov_cnt, offset, bytes, true) + +/** + * The same as above, but with just a single buffer + */ +ssize_t qemu_co_send_recv(int sockfd, void *buf, size_t bytes, bool do_send); +#define qemu_co_recv(sockfd, buf, bytes) \ + qemu_co_send_recv(sockfd, buf, bytes, false) +#define qemu_co_send(sockfd, buf, bytes) \ + qemu_co_send_recv(sockfd, buf, bytes, true) + #endif /* QEMU_COROUTINE_H */ |