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bug#7693 - ndb

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when using shm transporter, set sigmask on each thread using pthread_sigmask
This commit is contained in:
joreland@mysql.com 2005-01-19 07:23:20 +01:00
parent 06f60f6d65
commit b0b8f9115a
4 changed files with 41 additions and 8 deletions
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7
configure.in
View File

@ -1924,7 +1924,7 @@ AC_CHECK_FUNCS(alarm bcmp bfill bmove bzero chsize cuserid fchmod fcntl \
pthread_key_delete pthread_rwlock_rdlock pthread_setprio \
pthread_setprio_np pthread_setschedparam pthread_sigmask readlink \
realpath rename rint rwlock_init setupterm \
shmget shmat shmdt shmctl sigaction \
shmget shmat shmdt shmctl sigaction sigemptyset sigaddset \
sighold sigset sigthreadmask \
snprintf socket stpcpy strcasecmp strerror strnlen strpbrk strstr strtol \
strtoll strtoul strtoull tell tempnam thr_setconcurrency vidattr)
@ -3098,7 +3098,10 @@ if test "$ac_cv_func_shmget" = "yes" &&
test "$ac_cv_func_shmat" = "yes" &&
test "$ac_cv_func_shmdt" = "yes" &&
test "$ac_cv_func_shmctl" = "yes" &&
test "$ac_cv_func_sigaction" = "yes"
test "$ac_cv_func_sigaction" = "yes" &&
test "$ac_cv_func_sigemptyset" = "yes" &&
test "$ac_cv_func_sigaddset" = "yes" &&
test "$ac_cv_func_pthread_sigmask" = "yes"
then
AC_DEFINE([NDB_SHM_TRANSPORTER], [1],
[Including Ndb Cluster DB shared memory transporter])

22
ndb/src/common/portlib/NdbThread.c
View File

@ -28,8 +28,24 @@ struct NdbThread
{
pthread_t thread;
char thread_name[MAX_THREAD_NAME];
NDB_THREAD_FUNC * func;
void * object;
};
static
void*
ndb_thread_wrapper(void* _ss){
void * ret;
struct NdbThread * ss = (struct NdbThread *)_ss;
#ifdef NDB_SHM_TRANSPORTER
sigset_t mask;
sigemptyset(&mask);
sigaddset(&mask, SIGUSR1);
pthread_sigmask(SIG_BLOCK, &mask, 0);
#endif
ret= (* ss->func)(ss->object);
return ret;
}
struct NdbThread* NdbThread_Create(NDB_THREAD_FUNC *p_thread_func,
@ -67,10 +83,12 @@ struct NdbThread* NdbThread_Create(NDB_THREAD_FUNC *p_thread_func,
#ifdef PTHREAD_CREATE_JOINABLE /* needed on SCO */
pthread_attr_setdetachstate(&thread_attr, PTHREAD_CREATE_JOINABLE);
#endif
tmpThread->func= p_thread_func;
tmpThread->object= p_thread_arg;
result = pthread_create(&tmpThread->thread,
&thread_attr,
p_thread_func,
p_thread_arg);
ndb_thread_wrapper,
tmpThread);
assert(result==0);
pthread_attr_destroy(&thread_attr);

16
ndb/src/common/transporter/TransporterRegistry.cpp
View File

@ -153,8 +153,17 @@ TransporterRegistry::init(NodeId nodeId) {
DEBUG("TransporterRegistry started node: " << localNodeId);
// return allocateLongSignalMemoryPool(nLargeSegments);
return true;
#ifdef NDB_SHM_TRANSPORTER
/**
* Make sure to block SIGUSR1
* TransporterRegistry::init is run from "main" thread
*/
sigset_t mask;
sigemptyset(&mask);
sigaddset(&mask, SIGUSR1);
pthread_sigmask(SIG_BLOCK, &mask, 0);
#endif
return true;
}
bool
@ -1321,6 +1330,9 @@ TransporterRegistry::startReceiving()
#ifdef NDB_SHM_TRANSPORTER
m_shm_own_pid = getpid();
struct sigaction sa;
sigemptyset(&sa.sa_mask);
sigaddset(&sa.sa_mask, SIGUSR1);
pthread_sigmask(SIG_UNBLOCK, &sa.sa_mask, 0);
sa.sa_handler = shm_sig_handler;
sigemptyset(&sa.sa_mask);
sa.sa_flags = 0;

4
sql/ha_ndbcluster.cc
View File

@ -583,7 +583,7 @@ int ha_ndbcluster::get_ndb_blobs_value(NdbBlob *last_ndb_blob)
char *buf= m_blobs_buffer + offset;
uint32 len= 0xffffffff; // Max uint32
DBUG_PRINT("value", ("read blob ptr=%x len=%u",
(uint)buf, (uint)blob_len));
(UintPtr)buf, (uint)blob_len));
if (ndb_blob->readData(buf, len) != 0)
DBUG_RETURN(-1);
DBUG_ASSERT(len == blob_len);
@ -3169,7 +3169,7 @@ int ha_ndbcluster::start_stmt(THD *thd)
NdbConnection *tablock_trans=
(NdbConnection*)thd->transaction.all.ndb_tid;
DBUG_PRINT("info", ("tablock_trans: %x", (uint)tablock_trans));
DBUG_PRINT("info", ("tablock_trans: %x", (UintPtr)tablock_trans));
DBUG_ASSERT(tablock_trans);
// trans= ndb->hupp(tablock_trans);
trans= ndb->startTransaction();