void
Ns_MutexSetName2(Ns_Mutex *mutex, char *prefix, char *name)
{
Mutex *mutexPtr = GETMUTEX(mutex);
int plen, nlen;
char *p;
plen = strlen(prefix);
if (plen > NS_THREAD_NAMESIZE) {
plen = NS_THREAD_NAMESIZE;
nlen = 0;
} else {
nlen = name ? strlen(name) : 0;
if ((nlen + plen + 1) > NS_THREAD_NAMESIZE) {
nlen = NS_THREAD_NAMESIZE - plen - 1;
}
}
Ns_MasterLock();
p = strncpy(mutexPtr->name, prefix, (size_t)plen) + plen;
if (nlen > 0) {
*p++ = ':';
p = strncpy(p, name, (size_t)nlen) + nlen;
}
*p = '\0';
Ns_MasterUnlock();
}
void *
Pthread(void *arg)
{
static Ns_Tls tls;
/*
* Allocate TLS first time (this is recommended TLS
* self-initialization style.
*/
Ns_ThreadSetName("pthread");
sleep(5);
if (tls == NULL) {
Ns_MasterLock();
if (tls == NULL) {
Ns_TlsAlloc(&tls, PthreadTlsCleanup);
}
Ns_MasterUnlock();
}
Ns_TlsSet(&tls, arg);
/*
* Wait for exit signal from main().
*/
Ns_MutexLock(&plock);
while (!pgo) {
Ns_CondWait(&pcond, &plock);
}
Ns_MutexUnlock(&plock);
return arg;
}
static Mutex *
GetMutex(Ns_Mutex *mutex)
{
Ns_MasterLock();
if (*mutex == NULL) {
Ns_MutexInit(mutex);
}
Ns_MasterUnlock();
return (Mutex *) *mutex;
}
static pthread_cond_t *
GetCond(Ns_Cond *cond)
{
if (*cond == NULL) {
Ns_MasterLock();
if (*cond == NULL) {
Ns_CondInit(cond);
}
Ns_MasterUnlock();
}
return (pthread_cond_t *) *cond;
}
void
NsMutexInitNext(Ns_Mutex *mutex, char *prefix, unsigned int *nextPtr)
{
unsigned int id;
char buf[20];
Ns_MasterLock();
id = *nextPtr;
*nextPtr = id + 1;
Ns_MasterUnlock();
sprintf(buf, "ns:%s:%u", prefix, id);
Ns_MutexInit(mutex);
Ns_MutexSetName(mutex, buf);
}
void
Ns_MutexInit(Ns_Mutex *mutex)
{
Mutex *mutexPtr;
static unsigned int nextid;
mutexPtr = ns_calloc(1, sizeof(Mutex));
mutexPtr->lock = NsLockAlloc();
Ns_MasterLock();
mutexPtr->nextPtr = firstMutexPtr;
firstMutexPtr = mutexPtr;
mutexPtr->id = nextid++;
sprintf(mutexPtr->name, "mu%d", mutexPtr->id);
Ns_MasterUnlock();
*mutex = (Ns_Mutex) mutexPtr;
}
void
Ns_MutexList(Tcl_DString *dsPtr)
{
Mutex *mutexPtr;
char buf[100];
Ns_MasterLock();
mutexPtr = firstMutexPtr;
while (mutexPtr != NULL) {
Tcl_DStringStartSublist(dsPtr);
Tcl_DStringAppendElement(dsPtr, mutexPtr->name);
Tcl_DStringAppendElement(dsPtr, "");
sprintf(buf, " %d %lu %lu", mutexPtr->id, mutexPtr->nlock, mutexPtr->nbusy);
Tcl_DStringAppend(dsPtr, buf, -1);
Tcl_DStringEndSublist(dsPtr);
mutexPtr = mutexPtr->nextPtr;
}
Ns_MasterUnlock();
}
void
Ns_MutexDestroy(Ns_Mutex *mutex)
{
Mutex **mutexPtrPtr;
Mutex *mutexPtr = (Mutex *) *mutex;
if (mutexPtr != NULL) {
NsLockFree(mutexPtr->lock);
Ns_MasterLock();
mutexPtrPtr = &firstMutexPtr;
while ((*mutexPtrPtr) != mutexPtr) {
mutexPtrPtr = &(*mutexPtrPtr)->nextPtr;
}
*mutexPtrPtr = mutexPtr->nextPtr;
Ns_MasterUnlock();
ns_free(mutexPtr);
*mutex = NULL;
}
}
gdbm_error *
gdbm_perrno(void)
{
static Ns_Tls tls;
gdbm_error *errPtr;
if (tls == NULL) {
Ns_MasterLock();
if (tls == NULL) {
Ns_TlsAlloc(&tls, gdbm_free);
}
Ns_MasterUnlock();
}
errPtr = Ns_TlsGet(&tls);
if (errPtr == NULL) {
errPtr = gdbm_malloc(sizeof(gdbm_error));
*errPtr = GDBM_NO_ERROR;
Ns_TlsSet(&tls, errPtr);
}
return errPtr;
}
