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author | Marc-André Lureau <marcandre.lureau@redhat.com> | 2017-01-04 19:37:19 +0100 |
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committer | Marc-André Lureau <marcandre.lureau@redhat.com> | 2017-06-02 11:33:52 +0400 |
commit | b88ee025942d1ed67232700ef8befa5e52a9f7bd (patch) | |
tree | 4310041b776929abc51c7dca9d640778a8383326 /chardev/char-win.c | |
parent | c7e47c63e0362ffded57db38684b88c270cff65f (diff) | |
download | qemu-b88ee025942d1ed67232700ef8befa5e52a9f7bd.zip qemu-b88ee025942d1ed67232700ef8befa5e52a9f7bd.tar.gz qemu-b88ee025942d1ed67232700ef8befa5e52a9f7bd.tar.bz2 |
char-win: simplify win_chr_read()
win_chr_read_poll() is always used before win_chr_read().
We can easily fold win_chr_readfile() too.
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Diffstat (limited to 'chardev/char-win.c')
-rw-r--r-- | chardev/char-win.c | 35 |
1 files changed, 9 insertions, 26 deletions
diff --git a/chardev/char-win.c b/chardev/char-win.c index e4b6957..a46d878 100644 --- a/chardev/char-win.c +++ b/chardev/char-win.c @@ -26,14 +26,21 @@ #include "qapi/error.h" #include "char-win.h" -static void win_chr_readfile(Chardev *chr) +static void win_chr_read(Chardev *chr) { WinChardev *s = WIN_CHARDEV(chr); - + int max_size = qemu_chr_be_can_write(chr); int ret, err; uint8_t buf[CHR_READ_BUF_LEN]; DWORD size; + if (s->len > max_size) { + s->len = max_size; + } + if (s->len == 0) { + return; + } + ZeroMemory(&s->orecv, sizeof(s->orecv)); s->orecv.hEvent = s->hrecv; ret = ReadFile(s->hcom, buf, s->len, &size, &s->orecv); @@ -49,28 +56,6 @@ static void win_chr_readfile(Chardev *chr) } } -static void win_chr_read(Chardev *chr) -{ - WinChardev *s = WIN_CHARDEV(chr); - - if (s->len > s->max_size) { - s->len = s->max_size; - } - if (s->len == 0) { - return; - } - - win_chr_readfile(chr); -} - -static int win_chr_read_poll(Chardev *chr) -{ - WinChardev *s = WIN_CHARDEV(chr); - - s->max_size = qemu_chr_be_can_write(chr); - return s->max_size; -} - static int win_chr_poll(void *opaque) { Chardev *chr = CHARDEV(opaque); @@ -81,7 +66,6 @@ static int win_chr_poll(void *opaque) ClearCommError(s->hcom, &comerr, &status); if (status.cbInQue > 0) { s->len = status.cbInQue; - win_chr_read_poll(chr); win_chr_read(chr); return 1; } @@ -163,7 +147,6 @@ int win_chr_pipe_poll(void *opaque) PeekNamedPipe(s->hcom, NULL, 0, NULL, &size, NULL); if (size > 0) { s->len = size; - win_chr_read_poll(chr); win_chr_read(chr); return 1; } |