From patchwork Tue Jun 18 20:15:52 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: mrhines@linux.vnet.ibm.com X-Patchwork-Id: 252432 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from lists.gnu.org (lists.gnu.org [IPv6:2001:4830:134:3::11]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (Client did not present a certificate) by ozlabs.org (Postfix) with ESMTPS id E7F602C02F3 for ; Wed, 19 Jun 2013 06:26:58 +1000 (EST) Received: from localhost ([::1]:36202 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Up2UT-00073W-1E for incoming@patchwork.ozlabs.org; Tue, 18 Jun 2013 16:26:57 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:54055) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Up2U2-0006xs-W2 for qemu-devel@nongnu.org; Tue, 18 Jun 2013 16:26:33 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1Up2U0-0002Ji-BS for qemu-devel@nongnu.org; Tue, 18 Jun 2013 16:26:30 -0400 Received: from e37.co.us.ibm.com ([32.97.110.158]:51384) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Up2U0-0002Jb-5T for qemu-devel@nongnu.org; Tue, 18 Jun 2013 16:26:28 -0400 Received: from /spool/local by e37.co.us.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! 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Hines" QEMUFileRDMA also has read and write modes. This function is now shared to reduce code duplication. Reviewed-by: Paolo Bonzini Reviewed-by: Chegu Vinod Reviewed-by: Eric Blake Tested-by: Chegu Vinod Tested-by: Michael R. Hines Signed-off-by: Michael R. Hines --- include/migration/qemu-file.h | 1 + savevm.c | 20 +++++++++++++------- 2 files changed, 14 insertions(+), 7 deletions(-) diff --git a/include/migration/qemu-file.h b/include/migration/qemu-file.h index 8fab0dd..dd3fd51 100644 --- a/include/migration/qemu-file.h +++ b/include/migration/qemu-file.h @@ -80,6 +80,7 @@ void qemu_put_byte(QEMUFile *f, int v); * The buffer should be available till it is sent asynchronously. */ void qemu_put_buffer_async(QEMUFile *f, const uint8_t *buf, int size); +bool qemu_file_mode_is_not_valid(const char *mode); static inline void qemu_put_ubyte(QEMUFile *f, unsigned int v) { diff --git a/savevm.c b/savevm.c index 2122bf0..1de6728 100644 --- a/savevm.c +++ b/savevm.c @@ -449,14 +449,23 @@ static const QEMUFileOps socket_write_ops = { .close = socket_close }; -QEMUFile *qemu_fopen_socket(int fd, const char *mode) +bool qemu_file_mode_is_not_valid(const char *mode) { - QEMUFileSocket *s = g_malloc0(sizeof(QEMUFileSocket)); - if (mode == NULL || (mode[0] != 'r' && mode[0] != 'w') || mode[1] != 'b' || mode[2] != 0) { fprintf(stderr, "qemu_fopen: Argument validity check failed\n"); + return true; + } + + return false; +} + +QEMUFile *qemu_fopen_socket(int fd, const char *mode) +{ + QEMUFileSocket *s = g_malloc0(sizeof(QEMUFileSocket)); + + if (qemu_file_mode_is_not_valid(mode)) { return NULL; } @@ -474,10 +483,7 @@ QEMUFile *qemu_fopen(const char *filename, const char *mode) { QEMUFileStdio *s; - if (mode == NULL || - (mode[0] != 'r' && mode[0] != 'w') || - mode[1] != 'b' || mode[2] != 0) { - fprintf(stderr, "qemu_fopen: Argument validity check failed\n"); + if (qemu_file_mode_is_not_valid(mode)) { return NULL; }