CallStacksLogLock::CallStacksLogLock()
: mLocked(false), mOK(false)
{
if (!gCallStacksLogMutexp)
{
mOK = true;
return;
}
const int MAX_RETRIES = 5;
for (int attempts = 0; attempts < MAX_RETRIES; ++attempts)
{
apr_status_t s = apr_thread_mutex_trylock(gCallStacksLogMutexp);
if (!APR_STATUS_IS_EBUSY(s))
{
mLocked = true;
mOK = true;
return;
}
ms_sleep(1);
}
// We're hosed, we can't get the mutex. Blah.
std::cerr << "CallStacksLogLock::CallStacksLogLock: failed to get mutex for log"
<< std::endl;
}
bool LLMutexImpl::try_lock()
{
apr_status_t status = apr_thread_mutex_trylock(mMutexImpl);
if(APR_STATUS_IS_EBUSY(status))
return false;
APRExceptionThrower(status);
return true;
}
static void nested_wait(abts_case *tc, void *data)
{
toolbox_fnptr_t *fnptr = data;
toolbox_t box;
apr_status_t rv, retval;
apr_thread_cond_t *cond = NULL;
apr_thread_t *thread = NULL;
apr_thread_mutex_t *mutex = NULL;
rv = apr_thread_mutex_create(&mutex, APR_THREAD_MUTEX_NESTED, p);
ABTS_SUCCESS(rv);
ABTS_PTR_NOTNULL(tc, mutex);
rv = apr_thread_cond_create(&cond, p);
ABTS_SUCCESS(rv);
ABTS_PTR_NOTNULL(tc, cond);
rv = apr_thread_mutex_lock(mutex);
ABTS_SUCCESS(rv);
box.tc = tc;
box.cond = cond;
box.mutex = mutex;
box.func = fnptr->func;
rv = apr_thread_create(&thread, NULL, thread_routine, &box, p);
ABTS_SUCCESS(rv);
rv = apr_thread_mutex_unlock(mutex);
ABTS_SUCCESS(rv);
/* yield the processor */
apr_sleep(500000);
rv = apr_thread_cond_signal(cond);
ABTS_SUCCESS(rv);
rv = apr_thread_join(&retval, thread);
ABTS_SUCCESS(rv);
rv = apr_thread_mutex_trylock(mutex);
ABTS_INT_EQUAL(tc, 1, APR_STATUS_IS_EBUSY(rv));
rv = apr_thread_mutex_trylock(mutex);
ABTS_INT_EQUAL(tc, 1, APR_STATUS_IS_EBUSY(rv));
}
// non-blocking, but does do a lock/unlock so not free
bool LLMutexBase::isLocked() const
{
if (mLockingThread.equals_current_thread_inline())
return false; // A call to lock() won't block.
if (APR_STATUS_IS_EBUSY(apr_thread_mutex_trylock(mAPRMutexp)))
return true;
apr_thread_mutex_unlock(mAPRMutexp);
return false;
}
bool LLMutex::isLocked()
{
apr_status_t status = apr_thread_mutex_trylock(mAPRMutexp);
if (APR_STATUS_IS_EBUSY(status))
{
return true;
}
else
{
apr_thread_mutex_unlock(mAPRMutexp);
return false;
}
}
bool LLMutexBase::tryLock()
{
if (mLockingThread.equals_current_thread_inline())
{ //redundant lock
mCount++;
return true;
}
bool success = !APR_STATUS_IS_EBUSY(apr_thread_mutex_trylock(mAPRMutexp));
if (success)
{
mLockingThread.reset_inline();
}
return success;
}
bool
y_try_lock (void * self)
{
bool acquired = false;
#if APR_HAS_THREADS
y_Object * obj = y_OBJECT (self);
if ( obj ) {
apr_status_t status = apr_thread_mutex_trylock (obj->protect->mutex);
if ( ! APR_STATUS_IS_EBUSY (status)) {
acquired = true;
}
}
#endif /* APR_HAS_THREADS */
return acquired;
}
void LLMutexBase::lock()
{
if (mLockingThread.equals_current_thread_inline())
{ //redundant lock
mCount++;
return;
}
if (APR_STATUS_IS_EBUSY(apr_thread_mutex_trylock(mAPRMutexp)))
{
if (AIThreadID::in_main_thread_inline())
{
LLFastTimer ft1(FT_WAIT_FOR_MUTEX);
apr_thread_mutex_lock(mAPRMutexp);
}
else
{
apr_thread_mutex_lock(mAPRMutexp);
}
}
mLockingThread.reset_inline();
}
/* The sample content handler */
static int exipc_handler(request_rec *r)
{
int gotlock = 0;
int camped;
apr_time_t startcamp;
apr_int64_t timecamped;
apr_status_t rs;
exipc_data *base;
if (strcmp(r->handler, "example_ipc")) {
return DECLINED;
}
/*
* The main function of the handler, aside from sending the
* status page to the client, is to increment the counter in
* the shared memory segment. This action needs to be mutexed
* out using the global mutex.
*/
/*
* First, acquire the lock. This code is a lot more involved than
* it usually needs to be, because the process based trylock
* routine is not implemented on unix platforms. I left it in to
* show how it would work if trylock worked, and for situations
* and platforms where trylock works.
*/
for (camped = 0, timecamped = 0; camped < MAXCAMP; camped++) {
rs = apr_global_mutex_trylock(exipc_mutex);
if (APR_STATUS_IS_EBUSY(rs)) {
apr_sleep(CAMPOUT);
} else if (APR_SUCCESS == rs) {
gotlock = 1;
break; /* Get out of the loop */
} else if (APR_STATUS_IS_ENOTIMPL(rs)) {
/* If it's not implemented, just hang in the mutex. */
startcamp = apr_time_now();
rs = apr_global_mutex_lock(exipc_mutex);
timecamped = (apr_int64_t) (apr_time_now() - startcamp);
if (APR_SUCCESS == rs) {
gotlock = 1;
break; /* Out of the loop */
} else {
/* Some error, log and bail */
ap_log_error(APLOG_MARK, APLOG_ERR, rs, r->server,
"Child %ld failed to acquire lock",
(long int)getpid());
break; /* Out of the loop without having the lock */
}
} else {
/* Some other error, log and bail */
ap_log_error(APLOG_MARK, APLOG_ERR, rs, r->server,
"Child %ld failed to try and acquire lock",
(long int)getpid());
break; /* Out of the loop without having the lock */
}
/*
* The only way to get to this point is if the trylock worked
* and returned BUSY. So, bump the time and try again
*/
timecamped += CAMPOUT;
ap_log_error(APLOG_MARK, APLOG_NOERRNO | APLOG_NOTICE,
0, r->server, "Child %ld camping out on mutex for %d "
"microseconds",
(long int) getpid(), timecamped);
} /* Lock acquisition loop */
/* Sleep for a millisecond to make it a little harder for
* httpd children to acquire the lock.
*/
apr_sleep(SLEEPYTIME);
r->content_type = "text/html";
if (!r->header_only) {
ap_rputs(HTML_HEADER, r);
if (gotlock) {
/* Increment the counter */
base = (exipc_data *)apr_shm_baseaddr_get(exipc_shm);
base->counter++;
/* Send a page with our pid and the new value of the counter. */
ap_rprintf(r, "<p>Lock acquired after %ld microseoncds.</p>\n",
(long int) timecamped);
ap_rputs("<table border=\"1\">\n", r);
ap_rprintf(r, "<tr><td>Child pid:</td><td>%d</td></tr>\n",
(int) getpid());
ap_rprintf(r, "<tr><td>Counter:</td><td>%u</td></tr>\n",
(unsigned int)base->counter);
ap_rputs("</table>\n", r);
} else {
/*
* Send a page saying that we couldn't get the lock. Don't say
* what the counter is, because without the lock the value could
* race.
*/
ap_rprintf(r, "<p>Child %d failed to acquire lock "
"after camping out for %d microseconds.</p>\n",
(int) getpid(), (int) timecamped);
}
ap_rputs(HTML_FOOTER, r);
} /* r->header_only */
/* Release the lock */
if (gotlock)
rs = apr_global_mutex_unlock(exipc_mutex);
/* Swallowing the result because what are we going to do with it at
* this stage?
*/
return OK;
}
void status_to_name(lua_State *L, apr_status_t status)
{
/* Use a switch statement for fast number to string mapping: */
switch (status) {
# ifdef APR_ANONYMOUS
case APR_ANONYMOUS:
lua_pushliteral(L, "ANONYMOUS");
return;
# endif
# ifdef APR_BADARG
case APR_BADARG:
lua_pushliteral(L, "BADARG");
return;
# endif
# ifdef APR_BADCH
case APR_BADCH:
lua_pushliteral(L, "BADCH");
return;
# endif
# ifdef APR_DETACH
case APR_DETACH:
lua_pushliteral(L, "DETACH");
return;
# endif
# ifdef APR_EABOVEROOT
case APR_EABOVEROOT:
lua_pushliteral(L, "EABOVEROOT");
return;
# endif
# ifdef APR_EABSOLUTE
case APR_EABSOLUTE:
lua_pushliteral(L, "EABSOLUTE");
return;
# endif
# ifdef APR_EACCES
case APR_EACCES:
lua_pushliteral(L, "EACCES");
return;
# endif
# ifdef APR_EAFNOSUPPORT
case APR_EAFNOSUPPORT:
lua_pushliteral(L, "EAFNOSUPPORT");
return;
# endif
# ifdef APR_EAGAIN
case APR_EAGAIN:
lua_pushliteral(L, "EAGAIN");
return;
# endif
# ifdef APR_EBADDATE
case APR_EBADDATE:
lua_pushliteral(L, "EBADDATE");
return;
# endif
# ifdef APR_EBADF
case APR_EBADF:
lua_pushliteral(L, "EBADF");
return;
# endif
# ifdef APR_EBADIP
case APR_EBADIP:
lua_pushliteral(L, "EBADIP");
return;
# endif
# ifdef APR_EBADMASK
case APR_EBADMASK:
lua_pushliteral(L, "EBADMASK");
return;
# endif
# ifdef APR_EBADPATH
case APR_EBADPATH:
lua_pushliteral(L, "EBADPATH");
return;
# endif
# ifdef APR_EBUSY
case APR_EBUSY:
lua_pushliteral(L, "EBUSY");
return;
# endif
# ifdef APR_ECONNABORTED
case APR_ECONNABORTED:
lua_pushliteral(L, "ECONNABORTED");
return;
# endif
# ifdef APR_ECONNREFUSED
case APR_ECONNREFUSED:
lua_pushliteral(L, "ECONNREFUSED");
return;
# endif
# ifdef APR_ECONNRESET
case APR_ECONNRESET:
lua_pushliteral(L, "ECONNRESET");
return;
# endif
# ifdef APR_EDSOOPEN
case APR_EDSOOPEN:
lua_pushliteral(L, "EDSOOPEN");
return;
# endif
# ifdef APR_EEXIST
case APR_EEXIST:
lua_pushliteral(L, "EEXIST");
return;
# endif
# ifdef APR_EFTYPE
case APR_EFTYPE:
lua_pushliteral(L, "EFTYPE");
return;
# endif
# ifdef APR_EGENERAL
case APR_EGENERAL:
lua_pushliteral(L, "EGENERAL");
return;
# endif
# ifdef APR_EHOSTUNREACH
case APR_EHOSTUNREACH:
lua_pushliteral(L, "EHOSTUNREACH");
return;
# endif
# ifdef APR_EINCOMPLETE
case APR_EINCOMPLETE:
lua_pushliteral(L, "EINCOMPLETE");
return;
# endif
# ifdef APR_EINIT
case APR_EINIT:
lua_pushliteral(L, "EINIT");
return;
# endif
# ifdef APR_EINPROGRESS
case APR_EINPROGRESS:
lua_pushliteral(L, "EINPROGRESS");
return;
# endif
# ifdef APR_EINTR
case APR_EINTR:
lua_pushliteral(L, "EINTR");
return;
# endif
# ifdef APR_EINVAL
case APR_EINVAL:
lua_pushliteral(L, "EINVAL");
return;
# endif
# ifdef APR_EINVALSOCK
case APR_EINVALSOCK:
lua_pushliteral(L, "EINVALSOCK");
return;
# endif
# ifdef APR_EMFILE
case APR_EMFILE:
lua_pushliteral(L, "EMFILE");
return;
# endif
# ifdef APR_EMISMATCH
case APR_EMISMATCH:
lua_pushliteral(L, "EMISMATCH");
return;
# endif
# ifdef APR_ENAMETOOLONG
case APR_ENAMETOOLONG:
lua_pushliteral(L, "ENAMETOOLONG");
return;
# endif
# ifdef APR_ENETUNREACH
case APR_ENETUNREACH:
lua_pushliteral(L, "ENETUNREACH");
return;
# endif
# ifdef APR_ENFILE
case APR_ENFILE:
lua_pushliteral(L, "ENFILE");
return;
# endif
# ifdef APR_ENODIR
case APR_ENODIR:
lua_pushliteral(L, "ENODIR");
return;
# endif
# ifdef APR_ENOENT
case APR_ENOENT:
lua_pushliteral(L, "ENOENT");
return;
# endif
# ifdef APR_ENOLOCK
case APR_ENOLOCK:
lua_pushliteral(L, "ENOLOCK");
return;
# endif
# ifdef APR_ENOMEM
case APR_ENOMEM:
lua_pushliteral(L, "ENOMEM");
return;
# endif
# ifdef APR_ENOPOLL
case APR_ENOPOLL:
lua_pushliteral(L, "ENOPOLL");
return;
# endif
# ifdef APR_ENOPOOL
case APR_ENOPOOL:
lua_pushliteral(L, "ENOPOOL");
return;
# endif
# ifdef APR_ENOPROC
case APR_ENOPROC:
lua_pushliteral(L, "ENOPROC");
return;
# endif
# ifdef APR_ENOSHMAVAIL
case APR_ENOSHMAVAIL:
lua_pushliteral(L, "ENOSHMAVAIL");
return;
# endif
# ifdef APR_ENOSOCKET
case APR_ENOSOCKET:
lua_pushliteral(L, "ENOSOCKET");
return;
# endif
# ifdef APR_ENOSPC
case APR_ENOSPC:
lua_pushliteral(L, "ENOSPC");
return;
# endif
# ifdef APR_ENOSTAT
case APR_ENOSTAT:
lua_pushliteral(L, "ENOSTAT");
return;
# endif
# ifdef APR_ENOTDIR
case APR_ENOTDIR:
lua_pushliteral(L, "ENOTDIR");
return;
# endif
# ifdef APR_ENOTEMPTY
case APR_ENOTEMPTY:
lua_pushliteral(L, "ENOTEMPTY");
return;
# endif
# ifdef APR_ENOTENOUGHENTROPY
case APR_ENOTENOUGHENTROPY:
lua_pushliteral(L, "ENOTENOUGHENTROPY");
return;
# endif
# ifdef APR_ENOTHDKEY
case APR_ENOTHDKEY:
lua_pushliteral(L, "ENOTHDKEY");
return;
# endif
# ifdef APR_ENOTHREAD
case APR_ENOTHREAD:
lua_pushliteral(L, "ENOTHREAD");
return;
# endif
# ifdef APR_ENOTIME
case APR_ENOTIME:
lua_pushliteral(L, "ENOTIME");
return;
# endif
# ifdef APR_ENOTIMPL
case APR_ENOTIMPL:
lua_pushliteral(L, "ENOTIMPL");
return;
# endif
# ifdef APR_ENOTSOCK
case APR_ENOTSOCK:
lua_pushliteral(L, "ENOTSOCK");
return;
# endif
# ifdef APR_EOF
case APR_EOF:
lua_pushliteral(L, "EOF");
return;
# endif
# ifdef APR_EPATHWILD
case APR_EPATHWILD:
lua_pushliteral(L, "EPATHWILD");
return;
# endif
# ifdef APR_EPIPE
case APR_EPIPE:
lua_pushliteral(L, "EPIPE");
return;
# endif
# ifdef APR_EPROC_UNKNOWN
case APR_EPROC_UNKNOWN:
lua_pushliteral(L, "EPROC_UNKNOWN");
return;
# endif
# ifdef APR_ERELATIVE
case APR_ERELATIVE:
lua_pushliteral(L, "ERELATIVE");
return;
# endif
# ifdef APR_ESPIPE
case APR_ESPIPE:
lua_pushliteral(L, "ESPIPE");
return;
# endif
# ifdef APR_ESYMNOTFOUND
case APR_ESYMNOTFOUND:
lua_pushliteral(L, "ESYMNOTFOUND");
return;
# endif
# ifdef APR_ETIMEDOUT
case APR_ETIMEDOUT:
lua_pushliteral(L, "ETIMEDOUT");
return;
# endif
# ifdef APR_EXDEV
case APR_EXDEV:
lua_pushliteral(L, "EXDEV");
return;
# endif
# ifdef APR_FILEBASED
case APR_FILEBASED:
lua_pushliteral(L, "FILEBASED");
return;
# endif
# ifdef APR_INCHILD
case APR_INCHILD:
lua_pushliteral(L, "INCHILD");
return;
# endif
# ifdef APR_INCOMPLETE
case APR_INCOMPLETE:
lua_pushliteral(L, "INCOMPLETE");
return;
# endif
# ifdef APR_INPARENT
case APR_INPARENT:
lua_pushliteral(L, "INPARENT");
return;
# endif
# ifdef APR_KEYBASED
case APR_KEYBASED:
lua_pushliteral(L, "KEYBASED");
return;
# endif
# ifdef APR_NOTDETACH
case APR_NOTDETACH:
lua_pushliteral(L, "NOTDETACH");
return;
# endif
# ifdef APR_NOTFOUND
case APR_NOTFOUND:
lua_pushliteral(L, "NOTFOUND");
return;
# endif
# ifdef APR_SUCCESS
case APR_SUCCESS:
lua_pushliteral(L, "SUCCESS");
return;
# endif
# ifdef APR_TIMEUP
case APR_TIMEUP:
lua_pushliteral(L, "TIMEUP");
return;
# endif
}
/* If the switch statement fails we fall back to the following monstrosity :-) */
if (0) ;
# ifdef APR_STATUS_IS_ANONYMOUS
else if (APR_STATUS_IS_ANONYMOUS(status)) {
lua_pushliteral(L, "ANONYMOUS");
return;
}
# endif
# ifdef APR_STATUS_IS_BADARG
else if (APR_STATUS_IS_BADARG(status)) {
lua_pushliteral(L, "BADARG");
return;
}
# endif
# ifdef APR_STATUS_IS_BADCH
else if (APR_STATUS_IS_BADCH(status)) {
lua_pushliteral(L, "BADCH");
return;
}
# endif
# ifdef APR_STATUS_IS_DETACH
else if (APR_STATUS_IS_DETACH(status)) {
lua_pushliteral(L, "DETACH");
return;
}
# endif
# ifdef APR_STATUS_IS_EABOVEROOT
else if (APR_STATUS_IS_EABOVEROOT(status)) {
lua_pushliteral(L, "EABOVEROOT");
return;
}
# endif
# ifdef APR_STATUS_IS_EABSOLUTE
else if (APR_STATUS_IS_EABSOLUTE(status)) {
lua_pushliteral(L, "EABSOLUTE");
return;
}
# endif
# ifdef APR_STATUS_IS_EACCES
else if (APR_STATUS_IS_EACCES(status)) {
lua_pushliteral(L, "EACCES");
return;
}
# endif
# ifdef APR_STATUS_IS_EAFNOSUPPORT
else if (APR_STATUS_IS_EAFNOSUPPORT(status)) {
lua_pushliteral(L, "EAFNOSUPPORT");
return;
}
# endif
# ifdef APR_STATUS_IS_EAGAIN
else if (APR_STATUS_IS_EAGAIN(status)) {
lua_pushliteral(L, "EAGAIN");
return;
}
# endif
# ifdef APR_STATUS_IS_EBADDATE
else if (APR_STATUS_IS_EBADDATE(status)) {
lua_pushliteral(L, "EBADDATE");
return;
}
# endif
# ifdef APR_STATUS_IS_EBADF
else if (APR_STATUS_IS_EBADF(status)) {
lua_pushliteral(L, "EBADF");
return;
}
# endif
# ifdef APR_STATUS_IS_EBADIP
else if (APR_STATUS_IS_EBADIP(status)) {
lua_pushliteral(L, "EBADIP");
return;
}
# endif
# ifdef APR_STATUS_IS_EBADMASK
else if (APR_STATUS_IS_EBADMASK(status)) {
lua_pushliteral(L, "EBADMASK");
return;
}
# endif
# ifdef APR_STATUS_IS_EBADPATH
else if (APR_STATUS_IS_EBADPATH(status)) {
lua_pushliteral(L, "EBADPATH");
return;
}
# endif
# ifdef APR_STATUS_IS_EBUSY
else if (APR_STATUS_IS_EBUSY(status)) {
lua_pushliteral(L, "EBUSY");
return;
}
# endif
# ifdef APR_STATUS_IS_ECONNABORTED
else if (APR_STATUS_IS_ECONNABORTED(status)) {
lua_pushliteral(L, "ECONNABORTED");
return;
}
# endif
# ifdef APR_STATUS_IS_ECONNREFUSED
else if (APR_STATUS_IS_ECONNREFUSED(status)) {
lua_pushliteral(L, "ECONNREFUSED");
return;
}
# endif
# ifdef APR_STATUS_IS_ECONNRESET
else if (APR_STATUS_IS_ECONNRESET(status)) {
lua_pushliteral(L, "ECONNRESET");
return;
}
# endif
# ifdef APR_STATUS_IS_EDSOOPEN
else if (APR_STATUS_IS_EDSOOPEN(status)) {
lua_pushliteral(L, "EDSOOPEN");
return;
}
# endif
# ifdef APR_STATUS_IS_EEXIST
else if (APR_STATUS_IS_EEXIST(status)) {
lua_pushliteral(L, "EEXIST");
return;
}
# endif
# ifdef APR_STATUS_IS_EFTYPE
else if (APR_STATUS_IS_EFTYPE(status)) {
lua_pushliteral(L, "EFTYPE");
return;
}
# endif
# ifdef APR_STATUS_IS_EGENERAL
else if (APR_STATUS_IS_EGENERAL(status)) {
lua_pushliteral(L, "EGENERAL");
return;
}
# endif
# ifdef APR_STATUS_IS_EHOSTUNREACH
else if (APR_STATUS_IS_EHOSTUNREACH(status)) {
lua_pushliteral(L, "EHOSTUNREACH");
return;
}
# endif
# ifdef APR_STATUS_IS_EINCOMPLETE
else if (APR_STATUS_IS_EINCOMPLETE(status)) {
lua_pushliteral(L, "EINCOMPLETE");
return;
}
# endif
# ifdef APR_STATUS_IS_EINIT
else if (APR_STATUS_IS_EINIT(status)) {
lua_pushliteral(L, "EINIT");
return;
}
# endif
# ifdef APR_STATUS_IS_EINPROGRESS
else if (APR_STATUS_IS_EINPROGRESS(status)) {
lua_pushliteral(L, "EINPROGRESS");
return;
}
# endif
# ifdef APR_STATUS_IS_EINTR
else if (APR_STATUS_IS_EINTR(status)) {
lua_pushliteral(L, "EINTR");
return;
}
# endif
# ifdef APR_STATUS_IS_EINVAL
else if (APR_STATUS_IS_EINVAL(status)) {
lua_pushliteral(L, "EINVAL");
return;
}
# endif
# ifdef APR_STATUS_IS_EINVALSOCK
else if (APR_STATUS_IS_EINVALSOCK(status)) {
lua_pushliteral(L, "EINVALSOCK");
return;
}
# endif
# ifdef APR_STATUS_IS_EMFILE
else if (APR_STATUS_IS_EMFILE(status)) {
lua_pushliteral(L, "EMFILE");
return;
}
# endif
# ifdef APR_STATUS_IS_EMISMATCH
else if (APR_STATUS_IS_EMISMATCH(status)) {
lua_pushliteral(L, "EMISMATCH");
return;
}
# endif
# ifdef APR_STATUS_IS_ENAMETOOLONG
else if (APR_STATUS_IS_ENAMETOOLONG(status)) {
lua_pushliteral(L, "ENAMETOOLONG");
return;
}
# endif
# ifdef APR_STATUS_IS_ENETUNREACH
else if (APR_STATUS_IS_ENETUNREACH(status)) {
lua_pushliteral(L, "ENETUNREACH");
return;
}
# endif
# ifdef APR_STATUS_IS_ENFILE
else if (APR_STATUS_IS_ENFILE(status)) {
lua_pushliteral(L, "ENFILE");
return;
}
# endif
# ifdef APR_STATUS_IS_ENODIR
else if (APR_STATUS_IS_ENODIR(status)) {
lua_pushliteral(L, "ENODIR");
return;
}
# endif
# ifdef APR_STATUS_IS_ENOENT
else if (APR_STATUS_IS_ENOENT(status)) {
lua_pushliteral(L, "ENOENT");
return;
}
# endif
# ifdef APR_STATUS_IS_ENOLOCK
else if (APR_STATUS_IS_ENOLOCK(status)) {
lua_pushliteral(L, "ENOLOCK");
return;
}
# endif
# ifdef APR_STATUS_IS_ENOMEM
else if (APR_STATUS_IS_ENOMEM(status)) {
lua_pushliteral(L, "ENOMEM");
return;
}
# endif
# ifdef APR_STATUS_IS_ENOPOLL
else if (APR_STATUS_IS_ENOPOLL(status)) {
lua_pushliteral(L, "ENOPOLL");
return;
}
# endif
# ifdef APR_STATUS_IS_ENOPOOL
else if (APR_STATUS_IS_ENOPOOL(status)) {
lua_pushliteral(L, "ENOPOOL");
return;
}
# endif
# ifdef APR_STATUS_IS_ENOPROC
else if (APR_STATUS_IS_ENOPROC(status)) {
lua_pushliteral(L, "ENOPROC");
return;
}
# endif
# ifdef APR_STATUS_IS_ENOSHMAVAIL
else if (APR_STATUS_IS_ENOSHMAVAIL(status)) {
lua_pushliteral(L, "ENOSHMAVAIL");
return;
}
# endif
# ifdef APR_STATUS_IS_ENOSOCKET
else if (APR_STATUS_IS_ENOSOCKET(status)) {
lua_pushliteral(L, "ENOSOCKET");
return;
}
# endif
# ifdef APR_STATUS_IS_ENOSPC
else if (APR_STATUS_IS_ENOSPC(status)) {
lua_pushliteral(L, "ENOSPC");
return;
}
# endif
# ifdef APR_STATUS_IS_ENOSTAT
else if (APR_STATUS_IS_ENOSTAT(status)) {
lua_pushliteral(L, "ENOSTAT");
return;
}
# endif
# ifdef APR_STATUS_IS_ENOTDIR
else if (APR_STATUS_IS_ENOTDIR(status)) {
lua_pushliteral(L, "ENOTDIR");
return;
}
# endif
# ifdef APR_STATUS_IS_ENOTEMPTY
else if (APR_STATUS_IS_ENOTEMPTY(status)) {
lua_pushliteral(L, "ENOTEMPTY");
return;
}
# endif
# ifdef APR_STATUS_IS_ENOTENOUGHENTROPY
else if (APR_STATUS_IS_ENOTENOUGHENTROPY(status)) {
lua_pushliteral(L, "ENOTENOUGHENTROPY");
return;
}
# endif
# ifdef APR_STATUS_IS_ENOTHDKEY
else if (APR_STATUS_IS_ENOTHDKEY(status)) {
lua_pushliteral(L, "ENOTHDKEY");
return;
}
# endif
# ifdef APR_STATUS_IS_ENOTHREAD
else if (APR_STATUS_IS_ENOTHREAD(status)) {
lua_pushliteral(L, "ENOTHREAD");
return;
}
# endif
# ifdef APR_STATUS_IS_ENOTIME
else if (APR_STATUS_IS_ENOTIME(status)) {
lua_pushliteral(L, "ENOTIME");
return;
}
# endif
# ifdef APR_STATUS_IS_ENOTIMPL
else if (APR_STATUS_IS_ENOTIMPL(status)) {
lua_pushliteral(L, "ENOTIMPL");
return;
}
# endif
# ifdef APR_STATUS_IS_ENOTSOCK
else if (APR_STATUS_IS_ENOTSOCK(status)) {
lua_pushliteral(L, "ENOTSOCK");
return;
}
# endif
# ifdef APR_STATUS_IS_EOF
else if (APR_STATUS_IS_EOF(status)) {
lua_pushliteral(L, "EOF");
return;
}
# endif
# ifdef APR_STATUS_IS_EPATHWILD
else if (APR_STATUS_IS_EPATHWILD(status)) {
lua_pushliteral(L, "EPATHWILD");
return;
}
# endif
# ifdef APR_STATUS_IS_EPIPE
else if (APR_STATUS_IS_EPIPE(status)) {
lua_pushliteral(L, "EPIPE");
return;
}
# endif
# ifdef APR_STATUS_IS_EPROC_UNKNOWN
else if (APR_STATUS_IS_EPROC_UNKNOWN(status)) {
lua_pushliteral(L, "EPROC_UNKNOWN");
return;
}
# endif
# ifdef APR_STATUS_IS_ERELATIVE
else if (APR_STATUS_IS_ERELATIVE(status)) {
lua_pushliteral(L, "ERELATIVE");
return;
}
# endif
# ifdef APR_STATUS_IS_ESPIPE
else if (APR_STATUS_IS_ESPIPE(status)) {
lua_pushliteral(L, "ESPIPE");
return;
}
# endif
# ifdef APR_STATUS_IS_ESYMNOTFOUND
else if (APR_STATUS_IS_ESYMNOTFOUND(status)) {
lua_pushliteral(L, "ESYMNOTFOUND");
return;
}
# endif
# ifdef APR_STATUS_IS_ETIMEDOUT
else if (APR_STATUS_IS_ETIMEDOUT(status)) {
lua_pushliteral(L, "ETIMEDOUT");
return;
}
# endif
# ifdef APR_STATUS_IS_EXDEV
else if (APR_STATUS_IS_EXDEV(status)) {
lua_pushliteral(L, "EXDEV");
return;
}
# endif
# ifdef APR_STATUS_IS_FILEBASED
else if (APR_STATUS_IS_FILEBASED(status)) {
lua_pushliteral(L, "FILEBASED");
return;
}
# endif
# ifdef APR_STATUS_IS_INCHILD
else if (APR_STATUS_IS_INCHILD(status)) {
lua_pushliteral(L, "INCHILD");
return;
}
# endif
# ifdef APR_STATUS_IS_INCOMPLETE
else if (APR_STATUS_IS_INCOMPLETE(status)) {
lua_pushliteral(L, "INCOMPLETE");
return;
}
# endif
# ifdef APR_STATUS_IS_INPARENT
else if (APR_STATUS_IS_INPARENT(status)) {
lua_pushliteral(L, "INPARENT");
return;
}
# endif
# ifdef APR_STATUS_IS_KEYBASED
else if (APR_STATUS_IS_KEYBASED(status)) {
lua_pushliteral(L, "KEYBASED");
return;
}
# endif
# ifdef APR_STATUS_IS_NOTDETACH
else if (APR_STATUS_IS_NOTDETACH(status)) {
lua_pushliteral(L, "NOTDETACH");
return;
}
# endif
# ifdef APR_STATUS_IS_NOTFOUND
else if (APR_STATUS_IS_NOTFOUND(status)) {
lua_pushliteral(L, "NOTFOUND");
return;
}
# endif
# ifdef APR_STATUS_IS_TIMEUP
else if (APR_STATUS_IS_TIMEUP(status)) {
lua_pushliteral(L, "TIMEUP");
return;
}
# endif
lua_pushinteger(L, status);
}
static PyObject *_global_trylock(PyObject *self, PyObject *args)
{
PyObject *server;
PyObject *key;
server_rec *s;
py_global_config *glb;
int index = -1;
apr_status_t rv;
if (! PyArg_ParseTuple(args, "OO|i", &server, &key, &index))
return NULL;
if (! MpServer_Check(server)) {
PyErr_SetString(PyExc_TypeError,
"First argument must be a server object");
return NULL;
}
s = ((serverobject *)server)->server;
apr_pool_userdata_get((void **)&glb, MP_CONFIG_KEY,
s->process->pool);
if ((index >= (glb->nlocks)) || (index < -1)) {
ap_log_error(APLOG_MARK, APLOG_WARNING, 0, s,
"Index %d is out of range for number of global mutex locks", index);
PyErr_SetString(PyExc_ValueError,
"Lock index is out of range for number of global mutex locks");
return NULL;
}
if (index == -1) {
int hash = PyObject_Hash(key);
if (hash == -1) {
return NULL;
}
else {
hash = abs(hash);
}
/* note that this will never result in 0,
* which is reserved for things like dbm
* locking (see Session.py)
*/
index = (hash % (glb->nlocks-1)+1);
}
/*
* ap_log_error(APLOG_MARK, APLOG_WARNING, 0, s,
* "_global_trylock at index %d from pid %d", index, getpid());
*/
Py_BEGIN_ALLOW_THREADS
rv = apr_global_mutex_trylock(glb->g_locks[index]);
Py_END_ALLOW_THREADS
if (rv == APR_SUCCESS) {
/*
* ap_log_error(APLOG_MARK, APLOG_WARNING, 0, s,
* "_global_trylock DONE at index %d from pid %d", index, getpid());
*/
Py_INCREF(Py_True);
return Py_True;
}
else if(APR_STATUS_IS_EBUSY(rv)) {
/*
* ap_log_error(APLOG_MARK, APLOG_WARNING, 0, s,
* "_global_trylock BUSY at index %d from pid %d", index, getpid());
*/
Py_INCREF(Py_False);
return Py_False;
}
else {
ap_log_error(APLOG_MARK, APLOG_WARNING, rv, s,
"Failed to acquire global mutex lock at index %d", index);
PyErr_SetString(PyExc_ValueError,
"Failed to acquire global mutex lock");
return NULL;
}
}
