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/*
PsychToolbox3/Source/Common/MachPriorityMex/MachPriorityMex.c
PLATFORMS: OS X only.
AUTHORS:
Allen Ingling awi Allen.Ingling@nyu.edu
HISTORY:
8/08/02 awi wrote it.
DESCRIPTION
MachPriorityMex is a simplified variant of MachPriority which strips out the Psychtoolbox mex/mx abstraction layer.
For the sake of greater readability it uses a reduced argument set.
Calling forms are eiether:
MachPriorityMex('Restore'); Restore the previous priority settings existing before the first invocation of
MachPrioritySet.
MachPriorityMex('Default'); Restore the default priority settings for they system.
MachPriorityMex(period, computation, constraint); Set real-time priority with the specified parameters.
*/
#include "MachPriorityMex.h"
/*
GetFlavorStringFromFlavorConstant()
*/
/*
static thread_policy_flavor_t flavorConstants[] = {THREAD_STANDARD_POLICY, THREAD_EXTENDED_POLICY, THREAD_TIME_CONSTRAINT_POLICY, THREAD_PRECEDENCE_POLICY};
static char *flavorStrings[] = {"THREAD_STANDARD_POLICY", "THREAD_EXTENDED_POLICY","THREAD_TIME_CONSTRAINT_POLICY", "THREAD_PRECEDENCE_POLICY"};
static int numFlavors=4;
*/
static thread_policy_flavor_t flavorConstants[] = {THREAD_STANDARD_POLICY, THREAD_TIME_CONSTRAINT_POLICY, THREAD_PRECEDENCE_POLICY};
static char *flavorStrings[] = {"THREAD_STANDARD_POLICY", "THREAD_TIME_CONSTRAINT_POLICY", "THREAD_PRECEDENCE_POLICY"};
static int numFlavors=3;
/*
GetFlavorStringFromFlavorConstant()
returns NULL if no matching flavor string is found.
*/
char *GetFlavorStringFromFlavorConstant(thread_policy_flavor_t flavor)
{
int i;
for(i=0;i<=numFlavors;i++){
if(flavorConstants[i]==flavor)
return(flavorStrings[i]);
}
return(NULL);
}
/*
GetFlavorConstantFromFlavorString()
The return value is and error signal; returns 0 if the flavor string is valid and 1 otherwise.
*/
bool GetFlavorConstantFromFlavorString(char *flavorString, int flavorStringLength, thread_policy_flavor_t *flavorConstant) //case sensitive.
{
int i;
for(i=0;i<numFlavors;i++){
if(!strncmp(flavorStrings[i], flavorString, MIN(flavorStringLength, COMMAND_STRING_LENGTH))){
*flavorConstant=flavorConstants[i];
return(0);
}
}
return(1);
}
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