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monitor: add Error-propagating monitor_handle_fd_param2()

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and rebase monitor_handle_fd_param() to it. (Note that this will slightly
change the behavior when the qemu_parse_fd() branch is selected and it
fails: we now report (and in case of QMP, set) the error immediately,
rather than allowing the caller to set its own error message (if any)).

Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
This commit is contained in:
Laszlo Ersek 2014-04-10 10:24:31 +02:00 committed by Luiz Capitulino
parent e9c5c1f40c
commit 5906366ef0
2 changed files with 24 additions and 6 deletions
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1
include/monitor/monitor.h
View file

@ -75,6 +75,7 @@ int monitor_read_block_device_key(Monitor *mon, const char *device,
int monitor_get_fd(Monitor *mon, const char *fdname, Error **errp);
int monitor_handle_fd_param(Monitor *mon, const char *fdname);
int monitor_handle_fd_param2(Monitor *mon, const char *fdname, Error **errp);
void monitor_vprintf(Monitor *mon, const char *fmt, va_list ap)
GCC_FMT_ATTR(2, 0);

29
monitor.c
View file

@ -2611,16 +2611,33 @@ int monitor_handle_fd_param(Monitor *mon, const char *fdname)
int fd;
Error *local_err = NULL;
if (!qemu_isdigit(fdname[0]) && mon) {
fd = monitor_handle_fd_param2(mon, fdname, &local_err);
if (local_err) {
qerror_report_err(local_err);
error_free(local_err);
}
return fd;
}
int monitor_handle_fd_param2(Monitor *mon, const char *fdname, Error **errp)
{
int fd;
Error *local_err = NULL;
if (!qemu_isdigit(fdname[0]) && mon) {
fd = monitor_get_fd(mon, fdname, &local_err);
if (fd == -1) {
qerror_report_err(local_err);
error_free(local_err);
return -1;
}
} else {
fd = qemu_parse_fd(fdname);
if (fd == -1) {
error_setg(&local_err, "Invalid file descriptor number '%s'",
fdname);
}
}
if (local_err) {
error_propagate(errp, local_err);
assert(fd == -1);
} else {
assert(fd != -1);
}
return fd;