static UINT32 effective_cpu_mask(int index)
{
char *s;
char buf[5];
UINT32 mask = 0xFFFF;
s = osd_getenv(SDLENV_CPUMASKS);
if (s != NULL && strcmp(s,"none"))
{
if (!strcmp(s,"auto"))
{
if (index<2)
mask = 0x01; /* main thread and io threads on cpu #0 */
else
mask = (1 << (((index - 1) % (osd_get_num_processors() - 1)) + 1));
}
else
{
if (strlen(s) % 4 != 0 || strlen(s) < (index+1)*4)
{
fprintf(stderr,"Invalid cpu mask @index %d: %s\n", index, s);
}
else
{
memcpy(buf,s+4*index,4);
buf[4] = 0;
if (sscanf(buf, "%04x", &mask) != 1)
fprintf(stderr,"Invalid cpu mask element %d: %s\n", index, buf);
}
}
}
return mask;
}
static int effective_num_processors(void)
{
// JJG: To keep mamehub completely deterministic, force the # of processors to 1.
return 1;
int physprocs = osd_get_num_processors();
// osd_num_processors == 0 for 'auto'
if (osd_num_processors > 0)
{
return MIN(4 * physprocs, osd_num_processors);
}
else
{
int numprocs = 0;
// if the OSDPROCESSORS environment variable is set, use that value if valid
// note that we permit more than the real number of processors for testing
const char *procsoverride = osd_getenv(ENV_PROCESSORS);
if (procsoverride != NULL && sscanf(procsoverride, "%d", &numprocs) == 1 && numprocs > 0)
return MIN(4 * physprocs, numprocs);
// otherwise, return the info from the system
return physprocs;
}
}
static int effective_num_processors(void)
{
char *procsoverride;
int numprocs = 0;
int physprocs = osd_get_num_processors();
// osd_num_processors == 0 for 'auto'
if (osd_num_processors > 0)
return MIN(4 * physprocs, osd_num_processors);
else
{
// if the OSDPROCESSORS environment variable is set, use that value if valid
procsoverride = osd_getenv(SDLENV_PROCESSORS);
if (procsoverride != NULL && sscanf(procsoverride, "%d", &numprocs) == 1 && numprocs > 0)
return MIN(4 * physprocs, numprocs);
// otherwise, return the info from the system
return physprocs;
}
}
static int effective_num_processors(void)
{
int physprocs = osd_get_num_processors();
// osd_num_processors == 0 for 'auto'
if (osd_num_processors > 0)
{
return std::min(4 * physprocs, osd_num_processors);
}
else
{
int numprocs = 0;
// if the OSDPROCESSORS environment variable is set, use that value if valid
// note that we permit more than the real number of processors for testing
const char *procsoverride = osd_getenv(ENV_PROCESSORS);
if (procsoverride != nullptr && sscanf(procsoverride, "%d", &numprocs) == 1 && numprocs > 0)
return std::min(4 * physprocs, numprocs);
// otherwise, return the info from the system
return physprocs;
}
}
