Make omrsysinfo_get_CPU_load() return another error code on first call

thallium · thallium · commit a8d230b697cb · 2023-11-22T11:21:05.000-05:00
This is to help getSystemCpuLoad() determine if it's the first call. Related: eclipse-openj9/openj9#18451 Signed-off-by: Gengchen Tuo <gengchen.tuo@ibm.com>
diff --git a/include_core/omrporterror.h b/include_core/omrporterror.h
@@ -67,6 +67,7 @@
 #define OMRPORT_ERROR_INVALID_HANDLE (OMRPORT_ERROR_BASE-17)
 #define OMRPORT_ERROR_NOT_SUPPORTED_ON_THIS_PLATFORM (OMRPORT_ERROR_BASE-18)
 #define OMRPORT_ERROR_INVALID_ARGUMENTS (OMRPORT_ERROR_BASE-19)
+#define OMRPORT_ERROR_INSUFFICIENT_DATA (OMRPORT_ERROR_BASE-20)
 /** @} */
 
 /**
diff --git a/port/unix/omrsysinfo.c b/port/unix/omrsysinfo.c
@@ -4642,7 +4642,7 @@ omrsysinfo_get_CPU_load(struct OMRPortLibrary *portLibrary, double *cpuLoad)
 	if (oldestCPUTime->timestamp == 0) {
 		*oldestCPUTime = currentCPUTime;
 		*latestCPUTime = currentCPUTime;
-		return OMRPORT_ERROR_OPFAILED;
+		return OMRPORT_ERROR_INSUFFICIENT_DATA;
 	}
 
 	/* Calculate using the most recent value in the history */

Original file line number	Diff line number	Diff line change
`@@ -4642,7 +4642,7 @@ omrsysinfo_get_CPU_load(struct OMRPortLibrary portLibrary, double cpuLoad)`
`4642`	`4642`	`if (oldestCPUTime->timestamp == 0) {`
`4643`	`4643`	`*oldestCPUTime = currentCPUTime;`
`4644`	`4644`	`*latestCPUTime = currentCPUTime;`
`4645`		`- return OMRPORT_ERROR_OPFAILED;`
	`4645`	`+ return OMRPORT_ERROR_INSUFFICIENT_DATA;`
`4646`	`4646`	`}`
`4647`	`4647`
`4648`	`4648`	`/* Calculate using the most recent value in the history */`