libvirt/libvirt-0.6.0-qemu-startup.patch

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diff -rup libvirt-0.6.0.orig/src/qemu_driver.c libvirt-0.6.0.new/src/qemu_driver.c
--- libvirt-0.6.0.orig/src/qemu_driver.c 2009-01-31 09:04:18.000000000 +0000
+++ libvirt-0.6.0.new/src/qemu_driver.c 2009-02-18 11:15:37.000000000 +0000
@@ -633,6 +633,7 @@ qemudReadMonitorOutput(virConnectPtr con
{
int got = 0;
buf[0] = '\0';
+ timeout *= 1000; /* poll wants milli seconds */
/* Consume & discard the initial greeting */
while (got < (buflen-1)) {
@@ -694,6 +695,56 @@ qemudReadMonitorOutput(virConnectPtr con
}
+
+/*
+ * Returns -1 for error, 0 on success
+ */
+static int
+qemudReadLogOutput(virConnectPtr conn,
+ virDomainObjPtr vm,
+ int fd,
+ char *buf,
+ int buflen,
+ qemudHandlerMonitorOutput func,
+ const char *what,
+ int timeout)
+{
+ int got = 0;
+ int ret;
+ int retries = timeout*10;
+ buf[0] = '\0';
+
+ while (retries) {
+ while((ret = read(fd, buf+got, buflen-got-1)) > 0) {
+ got += ret;
+ buf[got] = '\0';
+ if ((buflen-got-1) == 0) {
+ qemudReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR,
+ _("Out of space while reading %s log output"), what);
+ return -1;
+ }
+ }
+
+ if (ret < 0 && errno != EINTR) {
+ virReportSystemError(conn, errno,
+ _("Failure while reading %s log output"),
+ what);
+ return -1;
+ }
+
+ ret = func(conn, vm, buf, fd);
+ if (ret <= 0)
+ return ret;
+
+ usleep(100*1000);
+ retries--;
+ }
+ if (retries == 0)
+ qemudReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR,
+ _("Timed out while reading %s log output"), what);
+ return -1;
+}
+
static int
qemudCheckMonitorPrompt(virConnectPtr conn ATTRIBUTE_UNUSED,
virDomainObjPtr vm,
@@ -738,7 +789,7 @@ static int qemudOpenMonitor(virConnectPt
vm, monfd,
buf, sizeof(buf),
qemudCheckMonitorPrompt,
- "monitor", 10000) <= 0)
+ "monitor", 10) <= 0)
ret = -1;
else
ret = 0;
@@ -770,6 +821,7 @@ static int qemudOpenMonitor(virConnectPt
return ret;
}
+/* Returns -1 for error, 0 success, 1 continue reading */
static int qemudExtractMonitorPath(virConnectPtr conn,
const char *haystack,
size_t *offset,
@@ -873,19 +925,16 @@ static int qemudWaitForMonitor(virConnec
< 0)
return -1;
- ret = qemudReadMonitorOutput(conn, vm, logfd, buf, sizeof(buf),
- qemudFindCharDevicePTYs,
- "console", 3000);
+ ret = qemudReadLogOutput(conn, vm, logfd, buf, sizeof(buf),
+ qemudFindCharDevicePTYs,
+ "console", 3);
if (close(logfd) < 0)
qemudLog(QEMUD_WARN, _("Unable to close logfile: %s\n"),
strerror(errno));
- if (ret == 1) /* Success */
+ if (ret == 0) /* success */
return 0;
- if (ret == -1)
- return -1;
-
/* Unexpected end of file - inform user of QEMU log data */
qemudReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR,
_("unable to start guest: %s"), buf);