log: handle EINTR in read()

We don't want to link log.{c,h} against utils.{c,h} for the sake of our static
builds init.lxc.static. This means lxc_write_nointr() will not be available. So
handle it EINTR.

Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>
This commit is contained in:
Christian Brauner 2018-07-29 23:54:32 +02:00
parent a5bc6cb0e0
commit e0c198063d
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@ -290,7 +290,8 @@ static int log_append_logfile(const struct lxc_log_appender *appender,
{
char buffer[LXC_LOG_BUFFER_SIZE];
char date_time[LXC_LOG_TIME_SIZE];
int n, ret;
int n;
ssize_t ret;
int fd_to_use = -1;
const char *log_container_name = log_vmname;
@ -340,7 +341,12 @@ static int log_append_logfile(const struct lxc_log_appender *appender,
buffer[n] = '\n';
return write(fd_to_use, buffer, n + 1);
again:
ret = write(fd_to_use, buffer, n + 1);
if (ret < 0 && errno == EINTR)
goto again;
return ret;
}
static struct lxc_log_appender log_appender_syslog = {