Shigemi's Posts

I have encountered two problems at VixJobWait API after issuing VixVM_Open API. My C++ program monitors properties of VMs such as POWER_STATE, VMX_PATHNAME, REPLAYING and RUNNING from remote work station and also sometimes issues VixVM_PowerOn or powerOffVM with VIX_VMPOWEROP_FROM_GUEST option to VM. Problem (I) is that My AP sometimes crushes just after issuing VixJobWait after VixVM_Open API under debug mode. Exception code is 0xC0000008(An Invlaid handle was specified) in vix.dll!7c94e4df(). But this error seems not to occur under release mode. So I think this is avoidable. Problem (II) is that VixJobWait sometimes never return after VixVM_Open API under the both debug and release modes. I replaced VixVM_Open API with VixHost_OpenVM API but the same problem still occurs. The attached program, "Proto_VMware_Vix.cpp" is a simple test program which is simplified from my program in order to reproduce the problem. I repeated "Power On VM" and "Shutdown VM" from vSphere client GUI while the Proto_VMware_Vix was running. Problem (I) did not occur but problem (II) occurred several times. Am I wrong in use of VIX API? Or if you have any advice, please let me know. My test environment: VMware vSphere4 VIX API 1.8.1 Visual stadio 2005

Hi all, My C++ program was using VIX API 1.7 to access remote machine(ESX 4.0) from Windows PC. Recently I found VIX API 1.8.1 has been released and it is suppoting new function VixHost_OpenVM API instead of VixVM_Open API. So, I replaced VixVM_Open() to VixHost_OpenVM() and I compiled my program under VIX API 1.8.1 but the following link error occurred. error LNK2019: Undefined symbol VixHostOpenVM. For compile, I'm including Vix.lib of "C:\Program Files\VMware\VMware VIX\VSphere-4.0\32bit" folder. Could anyone advise me? Shigemi,

First of all, I wrote my question as document by mistake, so I submit again here. I have a question how a remote program can monitor VM is normally running or not on VMware. My environment is VMware ESX 4.0 and VIX API 1.7. My C++ program can successfully access VMware from remote workstation, monitor power state of VM, power on or shutdown VM. And I want to monitor VM health state in order to confirm VM is normally running, that is power state of VM is running and also VM is not in hang condition. In case of Hyper-V of Microsoft, VM object, Msvm_ComputerSystem, has HealthState and OperationStatus properties. So it is possible to monitor VM is normally running by periodically monitoring those properties, I think. In case of VMware, VM object has not such a property. So if anyone has an idea to know health state of VM, please let me know. I have an idea to confirm VM health by periodically writing and reading variable to VM as follows, but I don't know this is effective or not. ############################################################################ BOOL writeReadPropertiesToVM(VixHandle vmHandle, BOOL* vmOK) { BOOL status = FALSE; VixError err = VIX_OK; VixHandle jobHandle = VIX_INVALID_HANDLE; char *readValue = NULL; jobHandle = VixVM_WriteVariable(vmHandle, VIX_VM_GUEST_VARIABLE, "myTestVariable", "newValue", 0, // options NULL, // callbackProc NULL); // clientData); err = VixJob_Wait(jobHandle, VIX_PROPERTY_NONE); if (VIX_OK != err) { // Handle the error... const char* errorString = Vix_GetErrorText(err, NULL); printf("VixVM_WriteVariable, status = 0x0%x(%s).\n", err, errorString); goto abort; } printf("VixVM_WriteVariable succeeded.n"); jobHandle = VixVM_ReadVariable(vmHandle, VIX_VM_GUEST_VARIABLE, "myTestVariable", 0, // options NULL, // callbackProc NULL); // clientData); err = VixJob_Wait(jobHandle, VIX_PROPERTY_JOB_RESULT_VM_VARIABLE_STRING, &readValue, VIX_PROPERTY_NONE); if (VIX_OK != err) { // Handle the error... const char* errorString = Vix_GetErrorText(err, NULL); printf("VixVM_ReadVariable, status = 0x0%x(%s).\n", err, errorString); goto abort; } printf("VixVM_ReadVariable succeeded.\n"); *vmOK = TRUE; status = TRUE; abort: Vix_FreeBuffer(readValue); Vix_ReleaseHandle(jobHandle); return status; } Thanks and regards, Shigemi

I have a question how a remote program can monitor VM is normally running or not on VMware. My environment is VMware ESX 4.0 and VIX API 1.7. My C++ program can successfully access VMware from remote workstation, monitor power state of VM, power on or shutdown VM. And I want to monitor VM health state in order to confirm VM is normally running, that is power state of VM is running and also VM is not in hang condition. In case of Hyper-V of Microsoft, VM object, Msvm_ComputerSystem, has HealthState and OperationStatus properties. So it is possible to monitor VM is normally running by periodically monitoring those properties, I think. In case of VMware, VM object has not such a property. So if anyone has an idea to know health state of VM, please let me know. I have an idea to confirm VM health by periodically writing and reading variable to VM as follows, but I don't know this is effective or not. ############################################################################ BOOL writeReadPropertiesToVM(VixHandle vmHandle, BOOL* vmOK) { BOOL status = FALSE; VixError err = VIX_OK; VixHandle jobHandle = VIX_INVALID_HANDLE; char *readValue = NULL; jobHandle = VixVM_WriteVariable(vmHandle, VIX_VM_GUEST_VARIABLE, "myTestVariable", "newValue", 0, // options NULL, // callbackProc NULL); // clientData); err = VixJob_Wait(jobHandle, VIX_PROPERTY_NONE); if (VIX_OK != err) { // Handle the error... const char* errorString = Vix_GetErrorText(err, NULL); printf("VixVM_WriteVariable, status = 0x0%x(%s).\n", err, errorString); goto abort; } printf("VixVM_WriteVariable succeeded.n"); jobHandle = VixVM_ReadVariable(vmHandle, VIX_VM_GUEST_VARIABLE, "myTestVariable", 0, // options NULL, // callbackProc NULL); // clientData); err = VixJob_Wait(jobHandle, VIX_PROPERTY_JOB_RESULT_VM_VARIABLE_STRING, &readValue, VIX_PROPERTY_NONE); if (VIX_OK != err) { // Handle the error... const char* errorString = Vix_GetErrorText(err, NULL); printf("VixVM_ReadVariable, status = 0x0%x(%s).\n", err, errorString); goto abort; } printf("VixVM_ReadVariable succeeded.\n"); *vmOK = TRUE; status = TRUE; abort: Vix_FreeBuffer(readValue); Vix_ReleaseHandle(jobHandle); return status; } Thanks and regards, Shigemi