diff options
author | Anthony Liguori <aliguori@us.ibm.com> | 2013-03-26 10:04:17 -0500 |
---|---|---|
committer | Anthony Liguori <aliguori@us.ibm.com> | 2013-03-26 10:08:07 -0500 |
commit | cd18720a294bd7244ffda719677dd9c737317b67 (patch) | |
tree | d2e1a7f2dff2e0065e731a0ac27a81007d0da0ca /qemu-char.c | |
parent | e769bdc26ded6d7681cddd9f67c5f87a4b5ba53c (diff) | |
download | hqemu-cd18720a294bd7244ffda719677dd9c737317b67.zip hqemu-cd18720a294bd7244ffda719677dd9c737317b67.tar.gz |
char: introduce a blocking version of qemu_chr_fe_write
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Diffstat (limited to 'qemu-char.c')
-rw-r--r-- | qemu-char.c | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/qemu-char.c b/qemu-char.c index 4e011df..936150f 100644 --- a/qemu-char.c +++ b/qemu-char.c @@ -140,6 +140,33 @@ int qemu_chr_fe_write(CharDriverState *s, const uint8_t *buf, int len) return s->chr_write(s, buf, len); } +int qemu_chr_fe_write_all(CharDriverState *s, const uint8_t *buf, int len) +{ + int offset = 0; + int res; + + while (offset < len) { + do { + res = s->chr_write(s, buf + offset, len - offset); + if (res == -1 && errno == EAGAIN) { + g_usleep(100); + } + } while (res == -1 && errno == EAGAIN); + + if (res == 0) { + break; + } + + if (res < 0) { + return res; + } + + offset += res; + } + + return offset; +} + int qemu_chr_fe_ioctl(CharDriverState *s, int cmd, void *arg) { if (!s->chr_ioctl) |