/*
* copy 2 strings back and forth
*/
float StropBencher::copy(int numRuns, int strType) {
float startTime = currTime();
std::string tmp;
std::string cpyStr = std::string("junk");
std::string cpyStr2 = std::string("more junk");
switch(strType) {
case MAUTIL_STRING:
for(int i = 0; i < numRuns; ++i){
for(int j = 0; j < ALOT; ++j){
tmp = cpyStr2;
cpyStr2 = cpyStr;
cpyStr = tmp;
}
}
printf("cpyStr = %s", cpyStr.c_str());
/*case STD_STRING: TODO Will have to wait until STL is implemented*/
}
return currTime() - startTime;
}
/*
* Bench string insertion
* @param insType, which insert()-func to call
*/
float StropBencher::insert(int numRuns, int strType, int insType) {
std::string str("I am a string!");
std::string inStr("I am a string to be inserted into other strings!");
float startTime = currTime();
switch(strType) {
case MAUTIL_STRING:
for(int i = 0; i < numRuns; ++i){
for(int j = 0; j < ALOT; ++j){
if(insType == 0)
str.insert(4, "junk");
else
str.insert(2, inStr); //this is a lot slower about 5 times in MoRE
}
}
/*case STD_STRING: TODO Will have to wait until STL is implemented
for(int i = 0; i < numRuns; ++i){
for(int j = 0; j < ALOT; ++j){
mStdStr->append("junk");
}
}
return currTime() - startTime;*/
}
return currTime() - startTime;
}
static void
sigchldHandler(int sig)
{
int status, savedErrno;
pid_t childPid;
/* UNSAFE: This handler uses non-async-signal-safe functions
(printf(), printWaitStatus(), currTime(); see Section 21.1.2) */
savedErrno = errno; /* In case we modify 'errno' */
printf("%s handler: Caught SIGCHLD\n", currTime("%T"));
while ((childPid = waitpid(-1, &status, WNOHANG)) > 0) {
printf("%s handler: Reaped child %ld - ", currTime("%T"),
(long) childPid);
printWaitStatus(NULL, status);
numLiveChildren--;
}
if (childPid == -1 && errno != ECHILD)
errMsg("waitpid");
sleep(5); /* Artificially lengthen execution of handler */
printf("%s handler: returning\n", currTime("%T"));
errno = savedErrno;
}
/*
* Test the performance of the remove() function of our strType
*/
float StropBencher::remove(int numRuns, int strType) { //TODO remove this, std::string do not have remove()
float startTime = currTime();
std::string longStr;
std::string subStr;
int pos;
switch(strType) {
case MAUTIL_STRING:
for(int i = 0; i < numRuns; ++i){
for(int j = 0; j < ALOT; ++j){
longStr = std::string("abcdefghiljkmnopqrstuvwxyzabcdefghiljkmnopqrstuvwxyzabcdefghiljkmnopqrstuvwxyzabcdefghiljkmnopqrstuvwxyzabcdefghiljkmnopqrstuvwxyz");
//longStr.remove(pos = rand()%(longStr.length()-1), rand()%(longStr.length()-pos));
}
}
printf("longStr: %s", longStr.c_str()); //force the compiler to actually do the operations because subStr is used!
/*case STD_STRING: TODO Will have to wait until STL is implemented*/
}
return currTime() - startTime;
}
/*
* Bench string appending
*/
float StropBencher::appender(int numRuns, int strType, int func) {
float startTime = currTime();
std::string str("Ima String!");
std::string appStr("Append me!");
switch(strType) {
case MAUTIL_STRING:
for(int i = 0; i < numRuns; ++i){
for(int j = 0; j < ALOT; ++j){
if(func == 0)
appStr.append("junk", 4);
else if(func == 1)
appStr += str; //testing operator+=
}
}
/*case STD_STRING: TODO Will have to wait until STL is implemented
for(int i = 0; i < numRuns; ++i){
for(int j = 0; j < ALOT; ++j){
mStdStr->append("junk");
}
}
return currTime() - startTime;*/
}
return currTime() - startTime;
}
static void
sigchldHandler(int sig)
{
int status, savedErrno;
pid_t childPid;
savedErrno = errno; /* In case we modify 'errno' */
printf("%s handler: Caught SIGCHLD\n", currTime("%T"));
while ((childPid = waitpid(-1, &status, WNOHANG)) > 0) {
printf("%s handler: Reaped child %ld - ", currTime("%T"),
(long) childPid);
printWaitStatus(NULL, status);
numLiveChildren--;
}
if (childPid == -1 && errno != ECHILD)
errMsg("waitpid");
sleep(5);
printf("%s handler: returning\n", currTime("%T"));
errno = savedErrno;
}
int
main(int argc, char *argv[])
{
int j, sigCnt;
sigset_t blockMask, emptyMask;
struct sigaction sa;
if (argc < 2 || strcmp(argv[1], "--help") == 0)
usageErr("%s child-sleep-time...\n", argv[0]);
setbuf(stdout, NULL); /* Disable buffering of stdout */
sigCnt = 0;
numLiveChildren = argc - 1;
sigemptyset(&sa.sa_mask);
sa.sa_flags = 0;
sa.sa_handler = sigchldHandler;
if (sigaction(SIGCHLD, &sa, NULL) == -1)
errExit("sigaction");
/* Block SIGCHLD to prevent its delivery if a child terminates
before the parent commences the sigsuspend() loop below */
sigemptyset(&blockMask);
sigaddset(&blockMask, SIGCHLD);
if (sigprocmask(SIG_SETMASK, &blockMask, NULL) == -1)
errExit("sigprocmask");
for (j = 1; j < argc; j++) {
switch (fork()) {
case -1:
errExit("fork");
case 0: /* Child - sleeps and then exits */
sleep(getInt(argv[j], GN_NONNEG, "child-sleep-time"));
printf("%s Child %d (PID=%ld) exiting\n", currTime("%T"),
j, (long) getpid());
_exit(EXIT_SUCCESS);
default: /* Parent - loops to create next child */
break;
}
}
/* Parent comes here: wait for SIGCHLD until all children are dead */
sigemptyset(&emptyMask);
while (numLiveChildren > 0) {
if (sigsuspend(&emptyMask) == -1 && errno != EINTR)
errExit("sigsuspend");
sigCnt++;
}
printf("%s All %d children have terminated; SIGCHLD was caught "
"%d times\n", currTime("%T"), argc - 1, sigCnt);
exit(EXIT_SUCCESS);
}
int
main(int argc, char *argv[])
{
int pfd[2]; /* Process synchronization pipe */
int j, dummy;
if (argc < 2 || strcmp(argv[1], "--help") == 0)
usageErr("%s sleep-time...\n", argv[0]);
setbuf(stdout, NULL); /* Make stdout unbuffered, since we
terminate child with _exit() */
printf("%s Parent started\n", currTime("%T"));
if (pipe(pfd) == -1)
errExit("pipe");
for (j = 1; j < argc; j++) {
switch (fork()) {
case -1:
errExit("fork %d", j);
case 0: /* Child */
if (close(pfd[0]) == -1) /* Read end is unused */
errExit("close");
/* Child does some work, and lets parent know it's done */
sleep(getInt(argv[j], GN_NONNEG, "sleep-time"));
/* Simulate processing */
printf("%s Child %d (PID=%ld) closing pipe\n",
currTime("%T"), j, (long) getpid());
if (close(pfd[1]) == -1)
errExit("close");
/* Child now carries on to do other things... */
_exit(EXIT_SUCCESS);
default: /* Parent loops to create next child */
break;
}
}
/* Parent comes here; close write end of pipe so we can see EOF */
if (close(pfd[1]) == -1) /* Write end is unused */
errExit("close");
/* Parent may do other work, then synchronizes with children */
if (read(pfd[0], &dummy, 1) != 0)
fatal("parent didn't get EOF");
printf("%s Parent ready to go\n", currTime("%T"));
/* Parent can now carry on to do other things... */
exit(EXIT_SUCCESS);
}
int
main(int argc, char *argv[])
{
int j, sigCnt;
sigset_t blockMask, emptyMask;
struct sigaction sa;
if (argc < 2 || strcmp(argv[1], "--help") == 0)
usageErr("%s child-sleep-time...\n", argv[0]);
setbuf(stdout, NULL);
sigCnt = 0;
numLiveChildren = argc - 1;
sigemptyset(&sa.sa_mask);
sa.sa_flags = 0;
sa.sa_handler = sigchldhandler;
if (sigaction(SIGCHLD, &sa, NULL) == -1)
errExit("sigaction");
sigemptyset(&blockMask);
sigaddset(&blockMask, SIGCHLD);
if (sigprocmask(SIG_SETMASK, &blockMask, NULL) == -1)
errExit("sigprocmask");
for (j = 1; j < argc; ++j) {
switch (fork()) {
case -1:
errExit("fork");
case 0:
sleep(getInt(argv[j], GN_NONNEG, "child-sleep-time"));
printf("%s Child %d (PID=%ld) exiting\n", currTime("%T"), j, (long) getpid());
_exit(EXIT_SUCCESS);
default:
break;
}
}
sigemptyset(&emptyMask);
while (numLiveChildren > 0) {
if (sigsuspend(&emptyMask) == -1 && errno != EINTR)
errExit("sigsuspend");
sigCnt++;
}
printf("%s All %d children have terminated; SIGCHLD was caught %d times\n", currTime("%T"), argc-1, sigCnt);
exit(EXIT_SUCCESS);
}
static void sigHandler(int sig)
{
int savedErrno;
savedErrno = errno;
printf("%s Caught SIGCHLD %d\n",currTime("%T"));
errno = savedErrno;
}
// getLatest:
//
void SPIF::getLatest(Session *s, MatchInfo &matchInfo)
{
Session::CacheModeType old_mode = s->m_eCacheMode;
FUNC("SPIF::getLatestSPIF");
AclString os;
try
{
if (s == NULL)
{
throw ACL_EXCEPT(ACL_NULL_POINTER,"Session pointer is NULL");
}
// only search cache (LOCAL) for SPIFs
//
s->setCacheMode(Session::LOCAL);
SPIFList *pList = s->getSPIF(matchInfo);
SPIFList::iterator pCurr;
SPIFList::iterator pLatest;
// Find most recent SPIF
//
if (pList != NULL)
{
pLatest = pList->begin();
pCurr = pList->begin();
pCurr++;
for (; pCurr != pList->end(); pCurr++)
{
CML::ASN::Time latestTime(pLatest->spiftoSign.versionInformation.creationDate);
CML::ASN::Time currTime(pCurr->spiftoSign.versionInformation.creationDate);
if (latestTime < currTime)
{
pLatest = pCurr;
}
else if (latestTime == currTime)
{
throw ACL_EXCEPT(ACL_CACHE_ERROR,
"Multiple matching SPIFs found in cache with the same creationDate");
}
}
*this = *pLatest;
delete pList;
}
else
{
os << "SPIF not found in cache.\0";
throw ACL_EXCEPT(ACL_CACHE_ERROR, os.str());
}
}
catch (SnaccException &e)
{
s->setCacheMode(old_mode);
e.push(STACK_ENTRY);
throw;
}
} // END OF MEMBER FUNCTION getLatest
static void handler(int sig, siginfo_t *si, void *uc)
{
printf("[%s] Got signal %d\n", currTime("%T"), sig);
printf(" sival_int = %d\n", si->si_value.sival_int);
printf(" timer_getoverrun() = %d\n",
timer_getoverrun((timer_t) si->si_value.sival_ptr));
}
static void /* Thread notification function */
threadFunc(union sigval sv)
{
timer_t *tidptr;
int s;
tidptr = sv.sival_ptr;
printf("[%s] Thread notify\n", currTime("%T"));
printf(" timer ID=%ld\n", (long) *tidptr);
printf(" timer_getoverrun()=%d\n", timer_getoverrun(*tidptr));
/* Increment counter variable shared with main thread and signal
condition variable to notify main thread of the change. */
s = pthread_mutex_lock(&mtx);
if (s != 0)
errExitEN(s, "pthread_mutex_lock");
expireCnt += 1 + timer_getoverrun(*tidptr);
s = pthread_mutex_unlock(&mtx);
if (s != 0)
errExitEN(s, "pthread_mutex_unlock");
s = pthread_cond_signal(&cond);
if (s != 0)
errExitEN(s, "pthread_cond_signal");
}
int
main(int argc, char *argv[])
{
int numDead; /* Number of children so far waited for */
pid_t childPid; /* PID of waited for child */
int j;
if (argc < 2 || strcmp(argv[1], "--help") == 0)
usageErr("%s sleep-time...\n", argv[0]);
setbuf(stdout, NULL); /* Disable buffering of stdout */
for (j = 1; j < argc; j++) { /* Create one child for each argument */
switch (fork()) {
case -1:
errExit("fork");
case 0: /* Child sleeps for a while then exits */
printf("[%s] child %d started with PID %ld, sleeping %s "
"seconds\n", currTime("%T"), j, (long) getpid(),
argv[j]);
sleep(getInt(argv[j], GN_NONNEG, "sleep-time"));
_exit(EXIT_SUCCESS);
default: /* Parent just continues around loop */
break;
}
}
numDead = 0;
for (;;) { /* Parent waits for each child to exit */
childPid = wait(NULL);
if (childPid == -1) {
if (errno == ECHILD) {
printf("No more children - bye!\n");
exit(EXIT_SUCCESS);
} else { /* Some other (unexpected) error */
errExit("wait");
}
}
numDead++;
printf("[%s] wait() returned child PID %ld (numDead=%d)\n",
currTime("%T"), (long) childPid, numDead);
}
}
void CMMFTestVideoDecodeHwDevice::SetClockSource(MMMFClockSource* aClock)
{
__ASSERT_ALWAYS(aClock, DevVideoDecoderPanic(EDecoderPanicClockSource));
// call Time() to check that clock can be used
TTimeIntervalMicroSeconds currTime(0); // done this way to remove compiler warning
currTime = aClock->Time();
}
int
main(int argc, char *argv[])
{
int fd, lock;
const char *lname;
if (argc < 3 || strcmp(argv[1], "--help") == 0 ||
strchr("sx", argv[2][0]) == NULL)
usageErr("%s file lock [sleep-time]\n"
" 'lock' is 's' (shared) or 'x' (exclusive)\n"
" optionally followed by 'n' (nonblocking)\n"
" 'secs' specifies time to hold lock\n", argv[0]);
lock = (argv[2][0] == 's') ? LOCK_SH : LOCK_EX;
if (argv[2][1] == 'n')
lock |= LOCK_NB;
fd = open(argv[1], O_RDONLY); /* Open file to be locked */
if (fd == -1)
errExit("open");
lname = (lock & LOCK_SH) ? "LOCK_SH" : "LOCK_EX";
printf("PID %ld: requesting %s at %s\n", (long) getpid(), lname,
currTime("%T"));
if (flock(fd, lock) == -1) {
if (errno == EWOULDBLOCK)
fatal("PID %ld: already locked - bye!", (long) getpid());
else
errExit("flock (PID=%ld)", (long) getpid());
}
printf("PID %ld: granted %s at %s\n", (long) getpid(), lname,
currTime("%T"));
sleep((argc > 3) ? getInt(argv[3], GN_NONNEG, "sleep-time") : 10);
printf("PID %ld: releasing %s at %s\n", (long) getpid(), lname,
currTime("%T"));
if (flock(fd, LOCK_UN) == -1)
errExit("flock");
exit(EXIT_SUCCESS);
}
int main(int argc, char *argv[])
{
pid_t childPid;
sigset_t blockMask, origMask, emptyMask;
struct sigaction sa;
setbuf(stdout, NULL);
sigemptyset(&blockMask);
sigaddset(&blockMask, SYNC_SIG);
if (sigprocmask(SIG_BLOCK, &blockMask, &o rigMask) == -1)
errExit("sigprocmask");
sigemptyset(&sa.sa_mask);
sa.sa_flags = SA_RESTART;
sa.sa_handler = handler;
if (sigaction(SYNC_SIG, &sa, NULL) == -1)
errExit("sigaction");
switch(childPid = fork()) {
case -1:
errExit("fork");
case 0:
printf("[%s %ld] Child started - doing some work\n",
currTime("%T"), (long) getpid());
if (kill(getppid(), SYNC_SIG) == -1)
errExit("kill");
_exit(EXIT_SUCCESS);
default:
printf("[%s %ld] Parent about to wait for signal\n",
currTime("%T"), (long) getpid());
sigemptyset(&emptyMask);
if (sigsuspend(&emptyMask) == -1 && errno != EINTR)
errExit("sigsuspend");
printf("[%s %ld] Parent got signal\n", currTime("%T"), (long) getpid());
if (sigprocmask(SIG_SETMASK, &origMask, NULL) == -1)
errExit("sigprocmask");
exit(EXIT_SUCCESS);
}
}
int main(int argc, char *argv[])
{
int sigCnt;
struct sigaction sa;
if(argc<2 || !strcmp(argv[1], "--help"))
usageErr("%s child-sleep-time...\n", argv[0]);
setvbuf(stdout, NULL, _IONBF, 0);
sigCnt = 0;
numLiveChildren = argc-1;
sigemptyset(&sa.sa_mask);
sa.sa_flags = 0;
sa.sa_handler = sigChldHandler;
if(sigaction(SIGCHLD, &sa, NULL) == -1)
errExit("sigaction");
for(int j=1; j<argc; ++j){
switch(fork()){
case -1:
errExit("fork()");
case 0:
sleep(getInt(argv[j], GN_NONNEG, "child-sleep-time"));
printf("%s Child %d (PID = %jd) exiting\n", currTime("%T"),
j, (intmax_t) getpid());
_exit(EXIT_SUCCESS);
default:
break;
}
}
while(numLiveChildren > 0){
pause();
++sigCnt;
}
printf("%s All %d children have terminated; SIGCHDL was caught "
"%d times\n", currTime("%T"), argc-1, sigCnt);
exit(EXIT_SUCCESS);
}
int
main(int argc, char *argv[])
{
int semid;
if (argc < 2 || argc > 3 || strcmp(argv[1], "--help") == 0)
usageErr("%s init-value\n"
" or: %s semid operation\n", argv[0], argv[0]);
if (argc == 2) { /* Create and initialize semaphore */
union semun arg;
semid = semget(IPC_PRIVATE, 1, S_IRUSR | S_IWUSR);
if (semid == -1)
errExit("semid");
arg.val = getInt(argv[1], 0, "init-value");
if (semctl(semid, /* semnum= */ 0, SETVAL, arg) == -1)
errExit("semctl");
printf("Semaphore ID = %d\n", semid);
} else { /* Perform an operation on first semaphore */
struct sembuf sop; /* Structure defining operation */
semid = getInt(argv[1], 0, "semid");
sop.sem_num = 0; /* Specifies first semaphore in set */
sop.sem_op = getInt(argv[2], 0, "operation");
/* Add, subtract, or wait for 0 */
sop.sem_flg = 0; /* No special options for operation */
printf("%ld: about to semop at %s\n", (long) getpid(), currTime("%T"));
if (semop(semid, &sop, 1) == -1)
errExit("semop");
printf("%ld: semop completed at %s\n", (long) getpid(), currTime("%T"));
}
exit(EXIT_SUCCESS);
}
static void
handler(int sig, siginfo_t *si, void *uc)
{
/* Note: calling printf() from a signal handler is not
strictly correct, since printf() is not async-signal-safe;
see signal(7) */
printf("[%s]Caught signal %d\n",currTime("%T"), sig);
print_siginfo(si);
// signal(SIG, SIG_DFL);
}
/*
* Benchmark the find functions family
* @param func tells which find-function to bench
*/
float StropBencher::find(int numRuns, int strType, int func) {
float startTime = currTime();
std::string alphabet("abcdefghiljkmnopqrstuvwxyz");
const char * c_str = "a\0b\0c\0d\0e\0f\0g\0h\0i\0j\0k\0l\0m\0n\0o\0p\0q\0r\0s\0t\0u\0v\0w\0x\0y\0z\0";
std::string largeAlphabet("abcdefghiljkmnopqrstuvwxyzabcdefghiljkmnopqrstuvwxyzabcdefghiljkmnopqrstuvwxyzabcdefghiljkmnopqrstuvwxyzabcdefghiljkmnopqrstuvwxyz");
int res; //result of find (position where char was found or -1 on no match)
switch(strType) {
case MAUTIL_STRING:
for(int i = 0; i < numRuns; ++i){
for(int j = 0; j < ALOT; ++j){
for(char k = 0; k < alphabet.length(); ++k){
if(func == 0){
res = alphabet.find(c_str+2*k, 0);
if(res == -1)
printf("Error in find(), no match but it should be!");
}else if(func == 1){
res = largeAlphabet.find_last_of((char) k+97); //ascii val of 'a' is 97
if(res == -1)
printf("Error in find_last_of(), no match but it should be!");
}else if(func == 2){
res = largeAlphabet.find_first_of((char) k+97, rand()%(largeAlphabet.length()-1)); //randomize starting position
}else{
res = largeAlphabet.find_first_not_of((char) k+97, rand()%(largeAlphabet.length()-1)); //randomize starting position
if(res == -1)
printf("Error in find_first_not_of(), no match but it should be!");
}
}
}
}
/*case STD_STRING: TODO Will have to wait until STL is implemented*/
}
return currTime() - startTime;
}
/*
* Test the performance of string comparisons on our strType
*/
float StropBencher::compare(int numRuns, int strType, int cmpType) {
float startTime = currTime();
bool ret;
std::string longStr("abcdefghiljkmnopqrstuvwxyzabcdefghiljkmnopqrstuvwxyzabcdefghiljkmnopqrstuvwxyzabcdefghiljkmnopqrstuvwxyzabcdefghiljkmnopqrstuvwxyz");
std::string eq("abcdefghiljkmnopqrstuvwxyzabcdefghiljkmnopqrstuvwxyzabcdefghiljkmnopqrstuvwxyzabcdefghiljkmnopqrstuvwxyzabcdefghiljkmnopqrstuvwxyz");
std::string notEq("abcdefghiljkmnopqrstuvwxyzabcdefghiljkmnopqrstuvwxyzabcdefghilj#kmnopqrstuvwxyzabcdefghiljkmnopqrstuvwxyzabcdefghiljkmnopqrstuvwxyz");
std::string less("abcdefghiljkmnopqrstuvwxyzabcdefghiljkmnopqrstuvwxyzabcdefghiljjkmnopqrstuvwxyzabcdefghiljkmnopqrstuvwxyzabcdefghiljkmnopqrstuvwxyz"); //2 j:s in a row makes this string lexiographically less than longStr
std::string more("abcdefghiljkmnopqrstuvwxyzabcdefghiljkmnopqrstuvwxyzabcdefghiljmkmnopqrstuvwxyzabcdefghiljkmnopqrstuvwxyzabcdefghiljkmnopqrstuvwxyz"); //a m after the j makes this string lexiographically more than longStr
int pos;
switch(strType) {
case MAUTIL_STRING:
for(int i = 0; i < numRuns; ++i){
for(int j = 0; j < ALOT; ++j){
if(cmpType == 0)
ret = longStr == eq;
else if(cmpType == 1)
ret = longStr != notEq;
else if(cmpType == 2)
ret = longStr <= more;
else if(cmpType == 3)
ret = longStr >= less;
else if(cmpType == 4)
ret = longStr < less;
else
ret = longStr > less;
}
}
// printf("ret: %d", ret); //force the compiler to actually do the operations because subStr is used!
/*case STD_STRING: TODO Will have to wait until STL is implemented*/
}
return currTime() - startTime;
}
static void sigChldHandler(int sig)
{
int status, savedErrno;
pid_t childPid;
savedErrno = errno;
printf("%s handler: Caught SIGCHLD\n", currTime("%T"));
while((childPid = waitpid(-1, &status, WNOHANG)) > 0){
printf("%s handler: Reaped child %jd - ", currTime("%T"),
(intmax_t) childPid);
printWaitStatus(NULL, status);
--numLiveChildren;
}
if(childPid == -1 && errno != ECHILD)
errMsg("waitpid()");
printf("%s handler: returning\n", currTime("%T"));
errno = savedErrno;
}
virtual void ProcessEvent(EFlowEvent event, SActivationInfo *pActInfo)
{
switch (event)
{
case eFE_Initialize:
{
m_actInfo = *pActInfo;
}
break;
case eFE_Activate:
{
if (IsPortActive(pActInfo, EIP_Enable)) {
if (socketWorking) {
endSocket();
}
m_bEnabled = true;
// try to open port socket
port = GetPortInt(pActInfo, EIP_Port);
multicast = GetPortString(pActInfo, EIP_Multicast);
startSocket(port, multicast);
Execute(pActInfo);
pActInfo->pGraph->SetRegularlyUpdated(pActInfo->myID, true);
}
if (IsPortActive(pActInfo, EIP_Disable)) {
m_bEnabled = false;
endSocket();
pActInfo->pGraph->SetRegularlyUpdated(pActInfo->myID, false);
}
}
break;
case eFE_Update:
{
CTimeValue currTime(gEnv->pTimer->GetCurrTime());
float delay = 0; // processing delay
delay -= (currTime-m_lastTime).GetSeconds();
m_lastTime = currTime;
// Execute?
if (delay <= 0.0f)
{
Execute(pActInfo);
}
}
break;
}
}
static void
handler(int sig, siginfo_t *si, void *uc)
{
timer_t *tidptr;
tidptr = si->si_value.sival_ptr;
/* UNSAFE: This handler uses non-async-signal-safe functions
(printf(); see Section 21.1.2) */
printf("[%s] Got signal %d\n", currTime("%T"), sig);
printf(" *sival_ptr = %ld\n", (long) *tidptr);
printf(" timer_getoverrun() = %d\n", timer_getoverrun(*tidptr));
}
int
main(int argc, char *argv[])
{
struct sembuf sops[MAX_SEMOPS];
int ind, nsops;
if (argc < 2 || strcmp(argv[1], "--help") == 0)
usageError(argv[0]);
for (ind = 2; argv[ind] != NULL; ind++) {
nsops = parseOps(argv[ind], sops);
printf("%5ld, %s: about to semop() [%s]\n", (long) getpid(),
currTime("%T"), argv[ind]);
if (semop(getInt(argv[1], 0, "semid"), sops, nsops) == -1)
errExit("semop (PID=%ld)", (long) getpid());
printf("%5ld, %s: semop() completed [%s]\n", (long) getpid(),
currTime("%T"), argv[ind]);
}
exit(EXIT_SUCCESS);
}
Explosion::Explosion (View* _view, float __radius) : FlyingObject(_view, 1, 0), _radius(__radius)
{
x = _view->getShip()->X();
y = _view->getShip()->Y() + view->getShip()->height();
vx = 0; vy = 0;
nvertices = NP;
vertices = new Point[nvertices];
for (int i=0; i< nvertices; i++)
{
float fi = M_PI* 2* i/ (nvertices-1);
vertices[i] = Point(_radius* sin(fi), _radius* cos(fi));
}
_color = Point4D(0.5,0,0,1);
_endTime = currTime() + 1500;
initGL();
}
int main(int argc, char *argv[])
{
int parentStatus;
printf("Grandparent: %ld\n", (long)getpid());
switch (fork()) {
case -1:
errExit("fork");
// parent
case 0:
printf("Parent: %ld\n", (long)getpid());
switch (fork()) {
case -1:
errExit("fork2");
// child
case 0:
printf("Child: %ld\n", (long)getpid());
printf("[%s] Before parent exit: %ld\n", currTime("%T"), (long)getppid());
sleep(2);
printf("[%s] After parent exit: %ld\n", currTime("%T"), (long)getppid());
sleep(4);
printf("[%s] After parent was reaped: %ld\n", currTime("%T"), (long)getppid());
_exit(EXIT_SUCCESS);
// still parent
default:
sleep(1);
printf("[%s] Parent exiting\n", currTime("%T"));
// 2
_exit(EXIT_SUCCESS);
}
// grandparent
default:
sleep(5);
printf("[%s] Grandparent reaping parent\n", currTime("%T"));
if (wait(&parentStatus) == -1) {
printf("WAIT FAILED TO REAP PARENT");
}
printf("[%s] Parent exit code: %d\n", currTime("%T"), parentStatus);
sleep(3);
exit(EXIT_SUCCESS);
}
exit(EXIT_FAILURE);
}
virtual void ProcessEvent(EFlowEvent event, SActivationInfo *pActInfo)
{
switch (event)
{
case eFE_Initialize :
{
current_values = new float[5];
for(int i = 0 ;i<5;i++) current_values[i]= 0;
break;
}
case eFE_Activate:
{
if (IsPortActive(pActInfo, EIP_Enable)) {
if (udpListener->IsWorking()) udpListener->EndSocket();
m_bEnabled = true;
udpListener->StartSocket(GetPortInt(pActInfo, EIP_Port));
Execute(pActInfo);
pActInfo->pGraph->SetRegularlyUpdated(pActInfo->myID, true);
}
if (IsPortActive(pActInfo, EIP_Disable)) {
m_bEnabled = false;
udpListener->EndSocket();
pActInfo->pGraph->SetRegularlyUpdated(pActInfo->myID, false);
}
}
break;
case eFE_Update:
{
CTimeValue currTime(gEnv->pTimer->GetCurrTime());
float delay = 0; // processing delay
delay -= (currTime-m_lastTime).GetSeconds();
m_lastTime = currTime;
if (delay <= 0.0f)
{
Execute(pActInfo);
}
}
break;
}
}
int main(int argc, char *argv[])
{
pid_t childPid;
sigset_t blockMask, origMask, emptyMask;
sigset_t ch_blockMask, ch_origMask, ch_emptyMask;
struct sigaction sa, ch_sa;
setbuf(stdout, NULL);
sigemptyset(&blockMask);
sigaddset(&blockMask, SYNC_SIG);
if (sigprocmask(SIG_BLOCK, &blockMask, &origMask) == -1)
errExit("sigprocmask");
sigemptyset(&sa.sa_mask);
sa.sa_flags = SA_RESTART;
sa.sa_handler = handler;
if (sigaction(SYNC_SIG, &sa, NULL) == -1)
errExit("sigaction");
switch (childPid = fork()) {
case -1:
errExit("fork");
case 0: /* Child */
sigemptyset(&ch_blockMask);
sigaddset(&ch_blockMask, SEC_SIG);
if (sigprocmask(SIG_BLOCK, &ch_blockMask, &ch_origMask) == -1)
errExit("sigprocmask");
sigemptyset(&ch_sa.sa_mask);
ch_sa.sa_flags = SA_RESTART;
ch_sa.sa_handler = handler;
if (sigaction(SEC_SIG, &ch_sa, NULL) == -1)
errExit("sigaction");
printf("[%s %ld] Child started - doing some work\n",
currTime("%T"), (long) getpid());
sleep(2); /* simulate work */
/* send signal to parent that it's done */
printf("[%s %ld] Child about to signal parent\n",
currTime("%T"), (long) getpid());
if (kill(getppid(), SYNC_SIG) == -1)
errExit("kill");
/* now child wait for signal from parent to continue */
if (sigsuspend(&ch_origMask) == -1 && errno != EINTR)
errExit("sigsuspend");
printf("[%s %ld] Child got signal from parent\n",
currTime("%T"), (long) getpid());
_exit(EXIT_SUCCESS);
default: /* Parent */
printf("[%s %ld] Parent about to wait for signal\n",
currTime("%T"), (long) getpid());
sigemptyset(&emptyMask);
if (sigsuspend(&emptyMask) == -1 && errno != EINTR)
errExit("sigsuspend");
printf("[%s %ld] Parent got signal \n", currTime("%T"), (long) getpid());
/* If required, return signal mask to its original state */
if (sigprocmask(SIG_SETMASK, &origMask, NULL) == -1)
errExit("sigprocmask");
printf("[%s %ld] Parent send signal to child \n", currTime("%T"), (long) getpid());
if (kill(childPid, SEC_SIG) == -1)
errExit("kill");
/* Parent carries on to do other things ... */
exit(EXIT_SUCCESS);
}
}