void *tc_main(void *ptr) {
netdata_thread_cleanup_push(tc_main_cleanup, ptr);
struct rusage thread;
char command[FILENAME_MAX + 1];
char *words[PLUGINSD_MAX_WORDS] = { NULL };
uint32_t BEGIN_HASH = simple_hash("BEGIN");
uint32_t END_HASH = simple_hash("END");
uint32_t QDISC_HASH = simple_hash("qdisc");
uint32_t CLASS_HASH = simple_hash("class");
uint32_t SENT_HASH = simple_hash("Sent");
uint32_t LENDED_HASH = simple_hash("lended:");
uint32_t TOKENS_HASH = simple_hash("tokens:");
uint32_t SETDEVICENAME_HASH = simple_hash("SETDEVICENAME");
uint32_t SETDEVICEGROUP_HASH = simple_hash("SETDEVICEGROUP");
uint32_t SETCLASSNAME_HASH = simple_hash("SETCLASSNAME");
uint32_t WORKTIME_HASH = simple_hash("WORKTIME");
#ifdef DETACH_PLUGINS_FROM_NETDATA
uint32_t MYPID_HASH = simple_hash("MYPID");
#endif
uint32_t first_hash;
snprintfz(command, TC_LINE_MAX, "%s/tc-qos-helper.sh", netdata_configured_primary_plugins_dir);
char *tc_script = config_get("plugin:tc", "script to run to get tc values", command);
while(!netdata_exit) {
FILE *fp;
struct tc_device *device = NULL;
struct tc_class *class = NULL;
snprintfz(command, TC_LINE_MAX, "exec %s %d", tc_script, localhost->rrd_update_every);
debug(D_TC_LOOP, "executing '%s'", command);
fp = mypopen(command, (pid_t *)&tc_child_pid);
if(unlikely(!fp)) {
error("TC: Cannot popen(\"%s\", \"r\").", command);
goto cleanup;
}
char buffer[TC_LINE_MAX+1] = "";
while(fgets(buffer, TC_LINE_MAX, fp) != NULL) {
if(unlikely(netdata_exit)) break;
buffer[TC_LINE_MAX] = '\0';
// debug(D_TC_LOOP, "TC: read '%s'", buffer);
tc_split_words(buffer, words, PLUGINSD_MAX_WORDS);
if(unlikely(!words[0] || !*words[0])) {
// debug(D_TC_LOOP, "empty line");
continue;
}
// else debug(D_TC_LOOP, "First word is '%s'", words[0]);
first_hash = simple_hash(words[0]);
if(unlikely(device && ((first_hash == CLASS_HASH && strcmp(words[0], "class") == 0) || (first_hash == QDISC_HASH && strcmp(words[0], "qdisc") == 0)))) {
// debug(D_TC_LOOP, "CLASS line on class id='%s', parent='%s', parentid='%s', leaf='%s', leafid='%s'", words[2], words[3], words[4], words[5], words[6]);
char *type = words[1]; // the class/qdisc type: htb, fq_codel, etc
char *id = words[2]; // the class/qdisc major:minor
char *parent = words[3]; // the word 'parent' or 'root'
char *parentid = words[4]; // parentid
char *leaf = words[5]; // the word 'leaf'
char *leafid = words[6]; // leafid
int parent_is_root = 0;
int parent_is_parent = 0;
if(likely(parent)) {
parent_is_parent = !strcmp(parent, "parent");
if(!parent_is_parent)
parent_is_root = !strcmp(parent, "root");
}
if(likely(type && id && (parent_is_root || parent_is_parent))) {
char qdisc = 0;
if(first_hash == QDISC_HASH) {
qdisc = 1;
if(!strcmp(type, "ingress")) {
// we don't want to get the ingress qdisc
// there should be an IFB interface for this
class = NULL;
continue;
}
if(parent_is_parent && parentid) {
// eliminate the minor number from parentid
// why: parentid is the id of the parent class
// but major: is also the id of the parent qdisc
char *s = parentid;
while(*s && *s != ':') s++;
if(*s == ':') s[1] = '\0';
}
}
if(parent_is_root) {
parentid = NULL;
leafid = NULL;
}
else if(!leaf || strcmp(leaf, "leaf") != 0)
leafid = NULL;
char leafbuf[20 + 1] = "";
if(leafid && leafid[strlen(leafid) - 1] == ':') {
strncpyz(leafbuf, leafid, 20 - 1);
strcat(leafbuf, "1");
leafid = leafbuf;
}
class = tc_class_add(device, id, qdisc, parentid, leafid);
}
else {
void *tc_main(void *ptr)
{
if(ptr) { ; }
info("TC thread created with task id %d", gettid());
if(pthread_setcanceltype(PTHREAD_CANCEL_DEFERRED, NULL) != 0)
error("Cannot set pthread cancel type to DEFERRED.");
if(pthread_setcancelstate(PTHREAD_CANCEL_ENABLE, NULL) != 0)
error("Cannot set pthread cancel state to ENABLE.");
struct rusage thread;
RRDSET *stcpu = NULL, *sttime = NULL;
char buffer[TC_LINE_MAX+1] = "";
char *words[MAX_WORDS] = { NULL };
uint32_t BEGIN_HASH = simple_hash("BEGIN");
uint32_t END_HASH = simple_hash("END");
uint32_t CLASS_HASH = simple_hash("class");
uint32_t SENT_HASH = simple_hash("Sent");
uint32_t LENDED_HASH = simple_hash("lended:");
uint32_t TOKENS_HASH = simple_hash("tokens:");
uint32_t SETDEVICENAME_HASH = simple_hash("SETDEVICENAME");
uint32_t SETDEVICEGROUP_HASH = simple_hash("SETDEVICEGROUP");
uint32_t SETCLASSNAME_HASH = simple_hash("SETCLASSNAME");
uint32_t WORKTIME_HASH = simple_hash("WORKTIME");
#ifdef DETACH_PLUGINS_FROM_NETDATA
uint32_t MYPID_HASH = simple_hash("MYPID");
#endif
uint32_t first_hash;
for(;1;) {
if(unlikely(netdata_exit)) break;
FILE *fp;
struct tc_device *device = NULL;
struct tc_class *class = NULL;
snprintfz(buffer, TC_LINE_MAX, "exec %s %d", config_get("plugin:tc", "script to run to get tc values", PLUGINS_DIR "/tc-qos-helper.sh"), rrd_update_every);
debug(D_TC_LOOP, "executing '%s'", buffer);
// fp = popen(buffer, "r");
fp = mypopen(buffer, &tc_child_pid);
if(!fp) {
error("TC: Cannot popen(\"%s\", \"r\").", buffer);
pthread_exit(NULL);
return NULL;
}
while(fgets(buffer, TC_LINE_MAX, fp) != NULL) {
if(unlikely(netdata_exit)) break;
buffer[TC_LINE_MAX] = '\0';
// debug(D_TC_LOOP, "TC: read '%s'", buffer);
tc_split_words(buffer, words, MAX_WORDS);
if(!words[0] || !*words[0]) {
// debug(D_TC_LOOP, "empty line");
continue;
}
// else debug(D_TC_LOOP, "First word is '%s'", words[0]);
first_hash = simple_hash(words[0]);
if(device && first_hash == CLASS_HASH && strcmp(words[0], "class") == 0) {
// debug(D_TC_LOOP, "CLASS line on class id='%s', parent='%s', parentid='%s', leaf='%s', leafid='%s'", words[2], words[3], words[4], words[5], words[6]);
// clear the last class
class = NULL;
// words[1] : class type
// words[2] : N:XX
// words[3] : parent or root
if(words[1] && words[2] && words[3] && (strcmp(words[3], "parent") == 0 || strcmp(words[3], "root") == 0)) {
//char *type = words[1]; // the class: htb, fq_codel, etc
// we are only interested for HTB classes
//if(strcmp(type, "htb") != 0) continue;
char *id = words[2]; // the class major:minor
char *parent = words[3]; // 'parent' or 'root'
char *parentid = words[4]; // the parent's id
char *leaf = words[5]; // 'leaf'
char *leafid = words[6]; // leafid
if(strcmp(parent, "root") == 0) {
parentid = NULL;
leafid = NULL;
}
else if(!leaf || strcmp(leaf, "leaf") != 0)
leafid = NULL;
char leafbuf[20 + 1] = "";
if(leafid && leafid[strlen(leafid) - 1] == ':') {
strncpyz(leafbuf, leafid, 20 - 1);
strcat(leafbuf, "1");
leafid = leafbuf;
}
class = tc_class_add(device, id, parentid, leafid);
}
}
else if(first_hash == END_HASH && strcmp(words[0], "END") == 0) {
// debug(D_TC_LOOP, "END line");
if(device) {
if(pthread_setcancelstate(PTHREAD_CANCEL_DISABLE, NULL) != 0)
error("Cannot set pthread cancel state to DISABLE.");
tc_device_commit(device);
// tc_device_free(device);
device = NULL;
class = NULL;
if(pthread_setcancelstate(PTHREAD_CANCEL_ENABLE, NULL) != 0)
error("Cannot set pthread cancel state to ENABLE.");
}
}
else if(first_hash == BEGIN_HASH && strcmp(words[0], "BEGIN") == 0) {
