Currently virProcessGetStatInfo() always returns success and only logs error
when it is unable to parse the data. Make this function actually report the
error and return a negative value in this error scenario.
Fix the callers so that they do not override the error generated.
Also fix non-linux implementation of this function so as to report error.
Signed-off-by: Ani Sinha <ani(a)anisinha.ca>
---
src/ch/ch_driver.c | 2 --
src/qemu/qemu_driver.c | 7 +------
src/util/virprocess.c | 9 +++++++--
3 files changed, 8 insertions(+), 10 deletions(-)
changelog:
v3: fix non-linux implementation
v2: fix callers
diff --git a/src/ch/ch_driver.c b/src/ch/ch_driver.c
index 53e0872207..3cbc668489 100644
--- a/src/ch/ch_driver.c
+++ b/src/ch/ch_driver.c
@@ -1073,8 +1073,6 @@ chDomainHelperGetVcpus(virDomainObj *vm,
if (virProcessGetStatInfo(&vcpuinfo->cpuTime,
&vcpuinfo->cpu, NULL,
vm->pid, vcpupid) < 0) {
- virReportSystemError(errno, "%s",
- _("cannot get vCPU placement & pCPU
time"));
return -1;
}
}
diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c
index d3d76c003f..9a17c93b08 100644
--- a/src/qemu/qemu_driver.c
+++ b/src/qemu/qemu_driver.c
@@ -1359,8 +1359,6 @@ qemuDomainHelperGetVcpus(virDomainObj *vm,
if (virProcessGetStatInfo(&vcpuinfo->cpuTime,
&vcpuinfo->cpu, NULL,
vm->pid, vcpupid) < 0) {
- virReportSystemError(errno, "%s",
- _("cannot get vCPU placement & pCPU
time"));
return -1;
}
}
@@ -2521,8 +2519,6 @@ qemuDomainGetInfo(virDomainPtr dom,
if (virDomainObjIsActive(vm)) {
if (virProcessGetStatInfo(&(info->cpuTime), NULL, NULL,
vm->pid, 0) < 0) {
- virReportError(VIR_ERR_OPERATION_FAILED, "%s",
- _("cannot read cputime for domain"));
goto cleanup;
}
}
@@ -10530,8 +10526,7 @@ qemuDomainMemoryStatsInternal(virQEMUDriver *driver,
}
if (virProcessGetStatInfo(NULL, NULL, &rss, vm->pid, 0) < 0) {
- virReportError(VIR_ERR_OPERATION_FAILED, "%s",
- _("cannot get RSS for domain"));
+ return -1;
} else {
stats[ret].tag = VIR_DOMAIN_MEMORY_STAT_RSS;
stats[ret].val = rss;
diff --git a/src/util/virprocess.c b/src/util/virprocess.c
index b559a4257e..709ec616de 100644
--- a/src/util/virprocess.c
+++ b/src/util/virprocess.c
@@ -1784,7 +1784,11 @@ virProcessGetStatInfo(unsigned long long *cpuTime,
virStrToLong_ullp(proc_stat[VIR_PROCESS_STAT_STIME], NULL, 10, &systime) <
0 ||
virStrToLong_l(proc_stat[VIR_PROCESS_STAT_RSS], NULL, 10, &rss) < 0 ||
virStrToLong_i(proc_stat[VIR_PROCESS_STAT_PROCESSOR], NULL, 10, &cpu) < 0)
{
- VIR_WARN("cannot parse process status data");
+ virReportError(VIR_ERR_INTERNAL_ERROR,
+ _("cannot parse process status data for pid
'%d/%d'"),
+ (int) pid, (int) tid);
+
+ return -1;
}
/* We got jiffies
@@ -1881,7 +1885,8 @@ virProcessGetStatInfo(unsigned long long *cpuTime G_GNUC_UNUSED,
pid_t pid G_GNUC_UNUSED,
pid_t tid G_GNUC_UNUSED)
{
- errno = ENOSYS;
+ virReportSystemError(ENOSYS, "%s",
+ _("Process statistics data is not supported on this
platform"));
return -1;
}
--
2.25.1