void Shader::setSource(const ShaderSource& source)
{
std::list< std::string > sources = source.getSources();
if ( sources.size() == 0 )
{
throw std::runtime_error("Attempted to create shader with empty sources");
}
if ( sources.size() == 1 )
{
const char * cstr = sources.front().c_str();
glShaderSource(_shaderId, 1, &cstr, 0);
}
else
{
std::vector< const char* > strArray(sources.size(), 0);
size_t i = 0;
std::list< std::string >::iterator sourcestr = sources.begin();
for ( ; sourcestr != sources.end(); ++sourcestr, ++i )
{
strArray[i] = sourcestr->c_str();
}
glShaderSource(_shaderId, i, &strArray[0], 0);
}
}
static int syncOVS(EVMod *mod)
{
HSP_mod_OVS *mdata = (HSP_mod_OVS *)mod->data;
resetCmd(mod);
resetExtras(mod);
char line[SFVS_MAX_LINELEN];
myDebug(1, "==== ovs-vsctl version ====");
char *version_cmd[] = { SFVS_OVS_CMD, "--version", NULL};
// don't abort if this fails: readVersion returns NO as an easy way
// to only see the first line. (Line number should really be supplied to
// callback from myExec)
mdata->ovs10 = NO; // assume newer version
mdata->usingAtVar = NO;
myExec((void *)mod, version_cmd, readVersion, line, SFVS_MAX_LINELEN, NULL);
// adapt if OVS is upgraded under our feet
if(mdata->ovs10 == NO) mdata->useAtVar = YES;
if(mdata->config.error
|| mdata->config.num_collectors == 0
|| (mdata->config.sampling_n == 0 && mdata->config.polling_secs == 0)) {
// no config or no targets or no sampling/polling - clear everything
myDebug(1, "no config found: clearing all OVS sFlow config");
setStr(&mdata->sflowUUID, "[]");
setState(mod, SFVSSTATE_SYNC_DESTROY);
}
else {
// got config - assume here that we're going to create a new
// sflow object, but if we find one we'll adopt it
setStr(&mdata->sflowUUID, SFVS_NEW_SFLOW_ID);
setState(mod, SFVSSTATE_SYNC_SEARCH);
}
myDebug(1, "==== list sflow ====");
char *list_sflow_cmd[] = { SFVS_OVS_CMD, "list", "sflow", NULL };
if(myExec((void *)mod, list_sflow_cmd, sFlowList, line, SFVS_MAX_LINELEN, NULL) == NO) return NO;
if(mdata->useAtVar) {
// we can add the create at the end
}
else {
// create new sFlow object if there were none found (i.e. if
// the sflowUUID has not changed from the initial setting we
// gave it.
if(strcmp(SFVS_NEW_SFLOW_ID, mdata->sflowUUID) == 0) {
addCreateSFlow(mod);
logCmd(mod);
strArrayAdd(mdata->cmd, NULL); // for execve(2)
if(myExec((void *)mod, strArray(mdata->cmd), submitCreate, line, SFVS_MAX_LINELEN, NULL) == NO) return NO;
resetCmd(mod);
}
}
// make sure every bridge is using this sFlow entry
myDebug(1, "==== list bridge ====");
char *list_bridge_cmd[] = { SFVS_OVS_CMD, "list", "bridge", NULL};
if(myExec((void *)mod, list_bridge_cmd, bridgeList, line, SFVS_MAX_LINELEN, NULL) == NO) return NO;
// now it's safe to delete any extras that we found
for(int ex = strArrayN(mdata->extras); --ex >= 0; ) {
addDestroySFlow(mod, strArrayAt(mdata->extras, ex));
}
if(mdata->useAtVar) {
// create new sFlow object if there were none found (i.e. if
// the sflowUUID has not changed from the initial setting we
// gave it.
if(strcmp(SFVS_NEW_SFLOW_ID, mdata->sflowUUID) == 0) {
addCreateSFlow(mod);
}
}
// if we decided to make any changes, submit them now
mdata->cmdFailed = NO;
if(strArrayN(mdata->cmd) > 1) {
logCmd(mod);
strArrayAdd(mdata->cmd, NULL); // for execve(2)
if(myExec((void *)mod, strArray(mdata->cmd), submitChanges, line, SFVS_MAX_LINELEN, NULL) == NO) return NO;
if(mdata->usingAtVar && mdata->cmdFailed == NO) {
// remember that it worked at least once
mdata->usedAtVarOK = YES;
}
}
return mdata->cmdFailed ? NO : YES;
}