diff options
Diffstat (limited to 'cutils.c')
| -rw-r--r-- | cutils.c | 41 |
1 files changed, 13 insertions, 28 deletions
@@ -376,43 +376,28 @@ int qemu_parse_fd(const char *param) return fd; } -/* - * Send/recv data with iovec buffers - * - * This function send/recv data from/to the iovec buffer directly. - * The first `offset' bytes in the iovec buffer are skipped and next - * `len' bytes are used. - * - * For example, - * - * do_sendv_recvv(sockfd, iov, len, offset, 1); - * - * is equal to - * - * char *buf = malloc(size); - * iov_to_buf(iov, iovcnt, buf, offset, size); - * send(sockfd, buf, size, 0); - * free(buf); - */ -static int do_sendv_recvv(int sockfd, struct iovec *iov, int len, int offset, +static ssize_t do_sendv_recvv(int sockfd, struct iovec *iov, + size_t offset, size_t bytes, int do_sendv) { - int ret, diff, iovlen; + int iovlen; + ssize_t ret; + size_t diff; struct iovec *last_iov; /* last_iov is inclusive, so count from one. */ iovlen = 1; last_iov = iov; - len += offset; + bytes += offset; - while (last_iov->iov_len < len) { - len -= last_iov->iov_len; + while (last_iov->iov_len < bytes) { + bytes -= last_iov->iov_len; last_iov++; iovlen++; } - diff = last_iov->iov_len - len; + diff = last_iov->iov_len - bytes; last_iov->iov_len -= diff; while (iov->iov_len <= offset) { @@ -474,13 +459,13 @@ static int do_sendv_recvv(int sockfd, struct iovec *iov, int len, int offset, return ret; } -int qemu_recvv(int sockfd, struct iovec *iov, int len, int iov_offset) +ssize_t iov_recv(int sockfd, struct iovec *iov, size_t offset, size_t bytes) { - return do_sendv_recvv(sockfd, iov, len, iov_offset, 0); + return do_sendv_recvv(sockfd, iov, offset, bytes, 0); } -int qemu_sendv(int sockfd, struct iovec *iov, int len, int iov_offset) +ssize_t iov_send(int sockfd, struct iovec *iov, size_t offset, size_t bytes) { - return do_sendv_recvv(sockfd, iov, len, iov_offset, 1); + return do_sendv_recvv(sockfd, iov, offset, bytes, 1); } |