void vt_esync_init()
{
/* get sync. interval */
SyncIntv = (uint64_t)vt_env_etimesync_intv() * vt_pform_clockres();
if (SyncIntv > 0)
SyncNext = vt_pform_wtime() + SyncIntv;
else
SyncNext = (uint64_t)-1;
}
uint32_t vt_rusage_open()
{
char* env;
char* var;
char* token;
uint32_t intv = (uint32_t)vt_env_rusage_intv();
uint32_t i;
/* read environment variable "VT_RUSAGE" */
if ( ( env = vt_env_rusage() ) == NULL )
return 0;
var = strdup(env);
vt_cntl_msg(2, "VT_RUSAGE=%s", var);
/* convert VT_RUSAGE's letters to lower case */
token = var;
while ( *token ) { *token = tolower(*token); token++; }
if ( strcmp(var, "all") == 0 )
{
/* add all rusage counters */
for ( i = 0; i < RU_CNTR_MAXNUM; i++ )
ru_active_cntrv[ru_active_cntrn++] = &(ru_cntrv[i]);
}
else
{
int idx;
/* read rusage counter from specification string */
token = strtok(var, ":");
while ( token )
{
idx = -1;
if ( ru_active_cntrn == RU_CNTR_MAXNUM )
{
vt_error_msg("Number of resource usage counters exceeds maximum of %d",
RU_CNTR_MAXNUM);
}
/* search counter name in vector of counter specifications */
for ( i = 0; i < RU_CNTR_MAXNUM; i++ )
if( strcmp(ru_cntrv[i].name, token) == 0) idx = (int)ru_cntrv[i].idx;
/* if found, add the address of this counter specification to vector
of active counters; otherwise abort */
if ( idx != -1 )
ru_active_cntrv[ru_active_cntrn++] = &(ru_cntrv[idx]);
else
vt_error_msg("Unknown resource usage counter %s", token);
token = strtok(NULL, ":");
}
}
/* set rusage read interval */
if ( intv > 0 )
vt_rusage_intv = (vt_pform_clockres() * (uint64_t)intv) / 1000;
free(var);
return ru_active_cntrn;
}
