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#include "include.h"
//
// The supported settings with their default values.
//
CONFIGURATION g_UserSettings[] = {
{COMPONENT ,0},
{MAX_OUTSTANDING_IO ,1},
{DELAY ,0},
{CANCEL ,0}
};
DWORD
ProcessUserInput(
_In_ int argc,
_In_reads_(argc) PWSTR argv[]
)
{
DWORD err = ERROR_SUCCESS;
for (int i=1; i < argc; i++)
{
PWSTR arg = argv[i];
//
// Setting must begin with / or -
//
if (arg[0] != L'-' && arg[0] != L'/')
{
printf("\n Invalid command-line argument %ws. \n", arg);
err = ERROR_INVALID_PARAMETER;
goto clean0;
}
if (L'?' == arg[1])
{
err = ERROR_INVALID_PARAMETER;
goto clean0;
}
//
// Setting must contain ':' as the seperator.
//
PWSTR settingName = arg + 1;
PWSTR settingValue = NULL;
PWSTR seperator = wcschr(settingName, L':');
if (seperator == NULL)
{
printf("\n Invalid command-line argument %ws. \n", arg);
err = ERROR_INVALID_PARAMETER;
goto clean0;
}
settingValue = seperator + 1;
*seperator = L'\0';
//
// Store the value of the setting in the appropriate location.
//
err = ProcessSwitch(settingName, settingValue);
if (err != ERROR_SUCCESS)
{
goto clean0;
}
}
clean0:
if (ERROR_SUCCESS != err)
{
PrintUsage(argv);
}
return err;
}
PCONFIGURATION
LookupSwitch(
_In_ PWSTR Param)
{
for (UINT i=0; i < COUNT_OF(g_UserSettings); i++)
{
if (_wcsicmp(Param, g_UserSettings[i].Option) == 0)
{
return &g_UserSettings[i];
}
}
return NULL;
}
ULONG
GetSetting(
_In_ PWSTR Switch)
{
return LookupSwitch(Switch)->Value;
}
DWORD
ProcessSwitch(
_In_ PWSTR Param,
_In_ PWSTR Value)
{
PCONFIGURATION config;
config = LookupSwitch(Param);
if (NULL == config)
{
printf("\n '%ws' is not a valid switch", Param);
return ERROR_INVALID_PARAMETER;
}
if (0 == _wcsicmp(Param, COMPONENT))
{
if (0 == _wcsicmp(Value, L"*"))
{
config->Value = RANDOM_COMPONENT;
}
else
{
config->Value = _wtoi(Value);
if (config->Value >= COMPONENT_COUNT)
{
printf("Invalid component count '%ws' specified. "
"Component count must be less than %d. \n", Value, COMPONENT_COUNT);
return ERROR_INVALID_PARAMETER;
}
}
}
else if (0 == _wcsicmp(Param, CANCEL))
{
if (0 == _wcsicmp(Value, L"yes"))
{
config->Value = TRUE;
}
else if (0 == _wcsicmp(Value, L"no"))
{
config->Value = FALSE;
}
else
{
printf("'%ws' is not a valid option for '%ws'. Must be 'yes' or 'no'. \n",
Value, Param);
return ERROR_INVALID_PARAMETER;
}
}
else
{
//
// For MaxOutstandingIo or Delay this is sufficient.
//
config->Value = _wtoi(Value);
if (0 == config->Value)
{
printf("'%ws' is not a valid option for '%ws'", Value, Param);
return ERROR_INVALID_PARAMETER;
}
}
return ERROR_SUCCESS;
}
void PrintUsage(
_In_ PWSTR argv[]
)
{
printf("\n This application can be used to send IO requests to a specified component");
printf("\n of the WDF Power Fx sample driver. The requests will be sent indefinitely ");
printf("\n until a request fails or the user terminates the execution with ^C");
printf("\n More details on the driver and application are in the associated help file.");
printf("\n ");
printf("\n Usage:");
printf("\n %ws [/<SettingName>:<SettingValue> ...]", argv[0]);
printf("\n ");
printf("\n Available settings are:");
printf("\n ");
printf("\n /Component:<Number>");
printf("\n Where <Number> can be a specific component number, or if you are running with");
printf("\n the multi-component sample driver you can specify '*'(without quotes) and ");
printf("\n each request will be sent to a random component between 0 and ");
printf("\n (COMPONENT_COUNT-1). Default value is component 0.");
printf("\n ");
printf("\n /Delay:<DelayInMilliSeconds>");
printf("\n There is an approximate delay between 0 and <DelayInMilliSeconds> ms");
printf("\n between each request. Default value is 0 (no delay).");
printf("\n ");
printf("\n /MaxOutstandingIO:<NumberOfRequests>");
printf("\n The maximum number of I/O requests that can be outstanding at any point.");
printf("\n Default value is 1 (equivalent to synchronously sending requests).");
printf("\n ");
printf("\n /Cancel:<YesNo>");
printf("\n Can be 'yes' or 'no' (without quotes).");
printf("\n When set to 'yes' the application will attempt to cancel the requests once ");
printf("\n sent. Default value is 'no'.");
printf("\n ");
return;
}
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