From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([140.186.70.92]:50932) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1RDuU7-0000hE-04 for qemu-devel@nongnu.org; Wed, 12 Oct 2011 04:48:24 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1RDuU1-0004U2-1S for qemu-devel@nongnu.org; Wed, 12 Oct 2011 04:48:18 -0400 Received: from e23smtp06.au.ibm.com ([202.81.31.148]:59029) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1RDuU0-0004Tl-6s for qemu-devel@nongnu.org; Wed, 12 Oct 2011 04:48:12 -0400 Received: from d23relay05.au.ibm.com (d23relay05.au.ibm.com [202.81.31.247]) by e23smtp06.au.ibm.com (8.14.4/8.13.1) with ESMTP id p9C8kj3R003149 for ; Wed, 12 Oct 2011 19:46:45 +1100 Received: from d23av04.au.ibm.com (d23av04.au.ibm.com [9.190.235.139]) by d23relay05.au.ibm.com (8.13.8/8.13.8/NCO v10.0) with ESMTP id p9C8jUX21605708 for ; Wed, 12 Oct 2011 19:45:32 +1100 Received: from d23av04.au.ibm.com (loopback [127.0.0.1]) by d23av04.au.ibm.com (8.14.4/8.13.1/NCO v10.0 AVout) with ESMTP id p9C8lsCv016325 for ; Wed, 12 Oct 2011 19:47:54 +1100 Message-ID: <4E95540D.1080405@linux.vnet.ibm.com> Date: Wed, 12 Oct 2011 16:47:09 +0800 From: Zhi Hui Li MIME-Version: 1.0 References: <1c8486b712ded2f86c1f8ed3291b9f35f37db0bd.1318326683.git.quintela@redhat.com> In-Reply-To: <1c8486b712ded2f86c1f8ed3291b9f35f37db0bd.1318326683.git.quintela@redhat.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Subject: Re: [Qemu-devel] [PATCH 01/36] ds1225y: Use stdio instead of QEMUFile List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Juan Quintela Cc: zhihuili@cn.ibm.com, qemu-devel@nongnu.org On 10/11/2011 06:00 PM, Juan Quintela wrote: > QEMUFile * is only intended for migration nowadays. Using it for > anything else just adds pain and a layer of buffers for no good > reason. > > Signed-off-by: Juan Quintela > --- > hw/ds1225y.c | 28 ++++++++++++++++------------ > 1 files changed, 16 insertions(+), 12 deletions(-) > > diff --git a/hw/ds1225y.c b/hw/ds1225y.c > index 9875c44..6852a61 100644 > --- a/hw/ds1225y.c > +++ b/hw/ds1225y.c > @@ -29,7 +29,7 @@ typedef struct { > DeviceState qdev; > uint32_t chip_size; > char *filename; > - QEMUFile *file; > + FILE *file; > uint8_t *contents; > } NvRamState; > > @@ -70,9 +70,9 @@ static void nvram_writeb (void *opaque, target_phys_addr_t addr, uint32_t val) > > s->contents[addr] = val; > if (s->file) { > - qemu_fseek(s->file, addr, SEEK_SET); > - qemu_put_byte(s->file, (int)val); > - qemu_fflush(s->file); > + fseek(s->file, addr, SEEK_SET); > + fputc(val, s->file); > + fflush(s->file); > } > } > > @@ -108,15 +108,17 @@ static int nvram_post_load(void *opaque, int version_id) > > /* Close file, as filename may has changed in load/store process */ > if (s->file) { > - qemu_fclose(s->file); > + fclose(s->file); > } > > /* Write back nvram contents */ > - s->file = qemu_fopen(s->filename, "wb"); > + s->file = fopen(s->filename, "wb"); > if (s->file) { > /* Write back contents, as 'wb' mode cleaned the file */ > - qemu_put_buffer(s->file, s->contents, s->chip_size); > - qemu_fflush(s->file); > + if (fwrite(s->contents, s->chip_size, 1, s->file) != 1) { > + printf("nvram_post_load: short write\n"); > + } > + fflush(s->file); > } > > return 0; > @@ -143,7 +145,7 @@ typedef struct { > static int nvram_sysbus_initfn(SysBusDevice *dev) > { > NvRamState *s =&FROM_SYSBUS(SysBusNvRamState, dev)->nvram; > - QEMUFile *file; > + FILE *file; > int s_io; > > s->contents = g_malloc0(s->chip_size); > @@ -153,11 +155,13 @@ static int nvram_sysbus_initfn(SysBusDevice *dev) > sysbus_init_mmio(dev, s->chip_size, s_io); > > /* Read current file */ > - file = qemu_fopen(s->filename, "rb"); > + file = fopen(s->filename, "rb"); > if (file) { > /* Read nvram contents */ > - qemu_get_buffer(file, s->contents, s->chip_size); > - qemu_fclose(file); > + if (fread(s->contents, s->chip_size, 1, file) != 1) { > + printf("nvram_sysbus_initfn: short read\n"); > + } > + fclose(file); > } > nvram_post_load(s, 0); > Tested-by: Zhi Hui Li