/*
* call the destruct funtions of all the threadflow's flowops,
* if it is still flagged as "running".
*/
void
flowop_destruct_all_flows(threadflow_t *threadflow)
{
flowop_t *flowop;
/* wait a moment to give other threads a chance to stop too */
(void) sleep(1);
(void) ipc_mutex_lock(&threadflow->tf_lock);
/* prepare to call destruct flow routines, if necessary */
if (threadflow->tf_running == 0) {
/* allready destroyed */
(void) ipc_mutex_unlock(&threadflow->tf_lock);
return;
}
flowop = threadflow->tf_thrd_fops;
threadflow->tf_running = 0;
(void) ipc_mutex_unlock(&threadflow->tf_lock);
while (flowop) {
flowop_destructflow(flowop);
flowop = flowop->fo_exec_next;
}
}
/*
* First creates the parent directories of the file using
* fileset_mkdir(). Then Optionally sets the O_DSYNC flag
* and opens the file with open64(). It unlocks the fileset
* entry lock, sets the DIRECTIO_ON or DIRECTIO_OFF flags
* as requested, and returns the file descriptor integer
* for the opened file.
*/
int
fileset_openfile(fileset_t *fileset,
filesetentry_t *entry, int flag, int mode, int attrs)
{
char path[MAXPATHLEN];
char dir[MAXPATHLEN];
char *pathtmp;
struct stat64 sb;
int fd;
int open_attrs = 0;
*path = 0;
(void) strcpy(path, *fileset->fs_path);
(void) strcat(path, "/");
(void) strcat(path, fileset->fs_name);
pathtmp = fileset_resolvepath(entry);
(void) strcat(path, pathtmp);
(void) strcpy(dir, path);
free(pathtmp);
(void) trunc_dirname(dir);
/* If we are going to create a file, create the parent dirs */
if ((flag & O_CREAT) && (stat64(dir, &sb) != 0)) {
if (fileset_mkdir(dir, 0755) == -1)
return (-1);
}
if (flag & O_CREAT)
entry->fse_flags |= FSE_EXISTS;
if (attrs & FLOW_ATTR_DSYNC) {
#ifdef sun
open_attrs |= O_DSYNC;
#else
open_attrs |= O_FSYNC;
#endif
}
if ((fd = open64(path, flag | open_attrs, mode)) < 0) {
filebench_log(LOG_ERROR,
"Failed to open file %s: %s",
path, strerror(errno));
(void) ipc_mutex_unlock(&entry->fse_lock);
return (-1);
}
(void) ipc_mutex_unlock(&entry->fse_lock);
#ifdef sun
if (attrs & FLOW_ATTR_DIRECTIO)
(void) directio(fd, DIRECTIO_ON);
else
(void) directio(fd, DIRECTIO_OFF);
#endif
return (fd);
}
/*
* Return 0 on success and a non-zero error code on failure.
*/
int
revalidate_cvar_handles()
{
cvar_t *t;
cvar_library_t *cvar_lib;
int ret;
if (!filebench_shm->shm_cvar_list)
return 0; /* Nothing to do. */
for (t = filebench_shm->shm_cvar_list; t != NULL; t = t->next) {
cvar_lib = cvar_libraries[t->cvar_lib_info->index];
if (cvar_lib->cvar_op.cvar_revalidate_handle) {
ipc_mutex_lock(&t->cvar_lock);
ret = cvar_lib->cvar_op.cvar_revalidate_handle(t->cvar_handle);
ipc_mutex_unlock(&t->cvar_lock);
if (ret) {
filebench_log(LOG_ERROR, "Revalidation failed for cvar_handle "
"of type %s with error code %d", t->cvar_lib_info->type,
ret);
return ret;
}
}
}
return 0;
}
double
get_cvar_value(cvar_t *cvar)
{
int ret;
double value = 0.0;
fbint_t round = cvar->round;
ipc_mutex_lock(&cvar->cvar_lock);
cvar_library_t *cvar_lib = cvar_libraries[cvar->cvar_lib_info->index];
ret = cvar_lib->cvar_op.cvar_next_value(cvar->cvar_handle, &value);
ipc_mutex_unlock(&cvar->cvar_lock);
if (ret) {
filebench_log(LOG_ERROR, "Unable to get next_value from custom variable"
" of type %s", cvar->cvar_lib_info->type);
filebench_shutdown(1);
}
if (round) {
fbint_t num, lower, upper;
num = (fbint_t) value;
lower = num - (num % round);
upper = lower + round;
value = (num - lower) > (upper - num) ? upper : lower;
}
if (value < cvar->min)
value = cvar->min;
else if (value > cvar->max)
value = cvar->max;
return value;
}
/*
* Creates threads for the threadflows associated with a procflow.
* The routine iterates through the list of threadflows in the
* supplied procflow's pf_threads list. For each threadflow on
* the list, it defines tf_instances number of cloned
* threadflows, and then calls threadflow_createthread() for
* each to create and start the actual operating system thread.
* Note that each of the newly defined threadflows will be linked
* into the procflows threadflow list, but at the head of the
* list, so they will not become part of the supplied set. After
* all the threads have been created, threadflow_init enters
* a join loop for all the threads in the newly defined
* threadflows. Once all the created threads have exited,
* threadflow_init will return 0. If errors are encountered, it
* will return a non zero value.
*/
int
threadflow_init(procflow_t *procflow)
{
threadflow_t *threadflow = procflow->pf_threads;
int ret = 0;
(void) ipc_mutex_lock(&filebench_shm->shm_threadflow_lock);
while (threadflow) {
threadflow_t *newthread;
int instances;
int i;
instances = avd_get_int(threadflow->tf_instances);
filebench_log(LOG_VERBOSE,
"Starting %d %s threads",
instances, threadflow->tf_name);
for (i = 1; i < instances; i++) {
/* Create threads */
newthread =
threadflow_define_common(procflow,
threadflow->tf_name, threadflow, i + 1);
if (newthread == NULL)
return (-1);
ret |= threadflow_createthread(newthread);
}
newthread = threadflow_define_common(procflow,
threadflow->tf_name,
threadflow, 1);
if (newthread == NULL)
return (-1);
/* Create each thread */
ret |= threadflow_createthread(newthread);
threadflow = threadflow->tf_next;
}
threadflow = procflow->pf_threads;
(void) ipc_mutex_unlock(&filebench_shm->shm_threadflow_lock);
while (threadflow) {
/* wait for all threads to finish */
if (threadflow->tf_tid) {
void *status;
if (pthread_join(threadflow->tf_tid, &status) == 0)
ret += *(int *)status;
}
threadflow = threadflow->tf_next;
}
procflow->pf_running = 0;
return (ret);
}
/*
* XXX No check is made for out-of-memory condition
*/
char *
ipc_ismmalloc(size_t size)
{
char *allocstr;
filebench_log(LOG_DEBUG_SCRIPT, "Mallocing from ISM...");
(void) ipc_mutex_lock(&filebench_shm->ism_lock);
/* Map in shared memory */
if (ipc_ismattach() < 0) {
return(NULL);
}
allocstr = filebench_shm->shm_ptr;
filebench_shm->shm_ptr += size;
filebench_shm->shm_allocated += size;
(void) ipc_mutex_unlock(&filebench_shm->ism_lock);
filebench_log(LOG_DEBUG_SCRIPT, "Done allocing from ISM...");
return (allocstr);
}
/*
* Returns a list of flowops named "name" from the master
* flowop list.
*/
flowop_t *
flowop_find(char *name)
{
flowop_t *flowop;
flowop_t *result = NULL;
flowop_find_barrier();
(void) ipc_mutex_lock(&filebench_shm->shm_flowop_lock);
flowop = filebench_shm->shm_flowoplist;
while (flowop) {
if (strcmp(name, flowop->fo_name) == 0) {
/* Add flowop to result list */
if (result == NULL) {
result = flowop;
flowop->fo_resultnext = NULL;
} else {
flowop->fo_resultnext = result;
result = flowop;
}
}
flowop = flowop->fo_next;
}
(void) ipc_mutex_unlock(&filebench_shm->shm_flowop_lock);
return (result);
}
/*
* Deletes all the flowops from a flowop list.
*/
void
flowop_delete_all(flowop_t **flowoplist)
{
flowop_t *flowop = *flowoplist;
filebench_log(LOG_DEBUG_IMPL, "Deleting all flowops...");
while (flowop) {
filebench_log(LOG_DEBUG_IMPL, "Deleting all flowops (%s-%d)",
flowop->fo_name, flowop->fo_instance);
flowop = flowop->fo_threadnext;
}
flowop = *flowoplist;
(void) ipc_mutex_lock(&filebench_shm->flowop_lock);
while (flowop) {
if (flowop->fo_instance &&
(flowop->fo_instance == FLOW_MASTER)) {
flowop = flowop->fo_threadnext;
continue;
}
flowop_delete(flowoplist, flowop);
flowop = flowop->fo_threadnext;
}
(void) ipc_mutex_unlock(&filebench_shm->flowop_lock);
}
/*
* Updates flowop's latency statistics, using saved start
* time and current high resolution time. Updates flowop's
* io count and transferred bytes statistics. Also updates
* threadflow's and flowop's cumulative read or write byte
* and io count statistics.
*/
void
flowop_endop(threadflow_t *threadflow, flowop_t *flowop, int64_t bytes)
{
hrtime_t t;
flowop->fo_stats.fs_mstate[FLOW_MSTATE_LAT] +=
(gethrtime() - threadflow->tf_stime);
#ifdef HAVE_PROCFS
if ((filebench_shm->shm_mmode & FILEBENCH_MODE_NOUSAGE) == 0) {
if ((pread(threadflow->tf_lwpusagefd, &threadflow->tf_eusage,
sizeof (struct prusage), 0)) != sizeof (struct prusage))
filebench_log(LOG_ERROR, "cannot read /proc");
t =
TIMESPEC_TO_HRTIME(threadflow->tf_susage.pr_utime,
threadflow->tf_eusage.pr_utime) +
TIMESPEC_TO_HRTIME(threadflow->tf_susage.pr_ttime,
threadflow->tf_eusage.pr_ttime) +
TIMESPEC_TO_HRTIME(threadflow->tf_susage.pr_stime,
threadflow->tf_eusage.pr_stime);
flowop->fo_stats.fs_mstate[FLOW_MSTATE_CPU] += t;
flowop->fo_stats.fs_mstate[FLOW_MSTATE_WAIT] +=
TIMESPEC_TO_HRTIME(threadflow->tf_susage.pr_tftime,
threadflow->tf_eusage.pr_tftime) +
TIMESPEC_TO_HRTIME(threadflow->tf_susage.pr_dftime,
threadflow->tf_eusage.pr_dftime) +
TIMESPEC_TO_HRTIME(threadflow->tf_susage.pr_kftime,
threadflow->tf_eusage.pr_kftime) +
TIMESPEC_TO_HRTIME(threadflow->tf_susage.pr_kftime,
threadflow->tf_eusage.pr_kftime) +
TIMESPEC_TO_HRTIME(threadflow->tf_susage.pr_slptime,
threadflow->tf_eusage.pr_slptime);
}
#endif
flowop->fo_stats.fs_count++;
flowop->fo_stats.fs_bytes += bytes;
(void) ipc_mutex_lock(&controlstats_lock);
if ((flowop->fo_type & FLOW_TYPE_IO) ||
(flowop->fo_type & FLOW_TYPE_AIO)) {
controlstats.fs_count++;
controlstats.fs_bytes += bytes;
}
if (flowop->fo_attrs & FLOW_ATTR_READ) {
threadflow->tf_stats.fs_rbytes += bytes;
threadflow->tf_stats.fs_rcount++;
flowop->fo_stats.fs_rcount++;
controlstats.fs_rbytes += bytes;
controlstats.fs_rcount++;
} else if (flowop->fo_attrs & FLOW_ATTR_WRITE) {
threadflow->tf_stats.fs_wbytes += bytes;
threadflow->tf_stats.fs_wcount++;
flowop->fo_stats.fs_wcount++;
controlstats.fs_wbytes += bytes;
controlstats.fs_wcount++;
}
(void) ipc_mutex_unlock(&controlstats_lock);
}
/*
* The producer side of the event system.
* Once eventgen_hz has been set by eventgen_setrate(),
* the routine sends eventgen_hz events per second until
* the program terminates. Events are posted by incrementing
* filebench_shm->shm_eventgen_q by the number of generated
* events then signalling the condition variable
* filebench_shm->shm_eventgen_cv to indicate to event consumers
* that more events are available.
*
* Eventgen_thread attempts to sleep for 10 event periods,
* then, once awakened, determines how many periods actually
* passed since sleeping, and issues a set of events equal
* to the number of periods that it slept, thus keeping the
* average rate at the requested rate.
*/
static void
eventgen_thread(void)
{
hrtime_t last;
last = gethrtime();
filebench_shm->shm_eventgen_enabled = FALSE;
/* CONSTCOND */
while (1) {
struct timespec sleeptime;
hrtime_t delta;
int count, rate;
if (filebench_shm->shm_eventgen_hz == NULL) {
(void) sleep(1);
continue;
} else {
rate = avd_get_int(filebench_shm->shm_eventgen_hz);
if (rate > 0) {
filebench_shm->shm_eventgen_enabled = TRUE;
} else {
continue;
}
}
/* Sleep for 10xperiod */
sleeptime.tv_sec = 0;
sleeptime.tv_nsec = FB_SEC2NSEC / rate;
sleeptime.tv_nsec *= 10;
if (sleeptime.tv_nsec < 1000UL)
sleeptime.tv_nsec = 1000UL;
sleeptime.tv_sec = sleeptime.tv_nsec / FB_SEC2NSEC;
if (sleeptime.tv_sec > 0)
sleeptime.tv_nsec -= (sleeptime.tv_sec * FB_SEC2NSEC);
(void) nanosleep(&sleeptime, NULL);
delta = gethrtime() - last;
last = gethrtime();
count = (rate * delta) / FB_SEC2NSEC;
filebench_log(LOG_DEBUG_SCRIPT,
"delta %llums count %d",
(u_longlong_t)(delta / 1000000), count);
/* Send 'count' events */
(void) ipc_mutex_lock(&filebench_shm->shm_eventgen_lock);
/* Keep the producer with a max of 5 second depth */
if (filebench_shm->shm_eventgen_q < (5 * rate))
filebench_shm->shm_eventgen_q += count;
(void) pthread_cond_signal(&filebench_shm->shm_eventgen_cv);
(void) ipc_mutex_unlock(&filebench_shm->shm_eventgen_lock);
}
}
/*
* Calls flowop_define_common() to allocate and initialize a
* flowop, and holds the shared flowop_lock during the call.
* It releases the created flowop's fo_lock when done.
*/
flowop_t *
flowop_define(threadflow_t *threadflow, char *name, flowop_t *inherit,
flowop_t **flowoplist_hdp, int instance, int type)
{
flowop_t *flowop;
(void) ipc_mutex_lock(&filebench_shm->shm_flowop_lock);
flowop = flowop_define_common(threadflow, name,
inherit, flowoplist_hdp, instance, type);
(void) ipc_mutex_unlock(&filebench_shm->shm_flowop_lock);
if (flowop == NULL)
return (NULL);
(void) ipc_mutex_unlock(&flowop->fo_lock);
return (flowop);
}
/*
* Searches through the master fileset list for the named fileset.
* If found, returns pointer to same, otherwise returns NULL.
*/
fileset_t *
fileset_find(char *name)
{
fileset_t *fileset = filebench_shm->filesetlist;
(void) ipc_mutex_lock(&filebench_shm->fileset_lock);
while (fileset) {
if (strcmp(name, fileset->fs_name) == 0) {
(void) ipc_mutex_unlock(&filebench_shm->fileset_lock);
return (fileset);
}
fileset = fileset->fs_next;
}
(void) ipc_mutex_unlock(&filebench_shm->fileset_lock);
return (NULL);
}
/*
* Waits till all threadflows are started, or a timeout occurs.
* Checks through the list of threadflows, waiting up to 10
* seconds for each one to set its tf_running flag to 1. If not
* set after 10 seconds, continues on to the next threadflow
* anyway.
*/
void
threadflow_allstarted(pid_t pid, threadflow_t *threadflow)
{
(void) ipc_mutex_lock(&filebench_shm->shm_threadflow_lock);
while (threadflow) {
int waits;
if ((threadflow->tf_instance == 0) ||
(threadflow->tf_instance == FLOW_MASTER)) {
threadflow = threadflow->tf_next;
continue;
}
filebench_log(LOG_DEBUG_IMPL, "Checking pid %d thread %s-%d",
pid,
threadflow->tf_name,
threadflow->tf_instance);
waits = 10;
while (waits && (threadflow->tf_running == 0) &&
(filebench_shm->shm_f_abort == 0)) {
(void) ipc_mutex_unlock(
&filebench_shm->shm_threadflow_lock);
if (waits < 3)
filebench_log(LOG_INFO,
"Waiting for pid %d thread %s-%d",
pid,
threadflow->tf_name,
threadflow->tf_instance);
(void) sleep(1);
(void) ipc_mutex_lock(
&filebench_shm->shm_threadflow_lock);
waits--;
}
threadflow = threadflow->tf_next;
}
(void) ipc_mutex_unlock(&filebench_shm->shm_threadflow_lock);
}
/*
* Calls flowop_define_common() to allocate and initialize a
* composite flowop, and holds the shared flowop_lock during the call.
* It releases the created flowop's fo_lock when done.
*/
flowop_t *
flowop_new_composite_define(char *name)
{
flowop_t *flowop;
(void) ipc_mutex_lock(&filebench_shm->shm_flowop_lock);
flowop = flowop_define_common(NULL, name,
NULL, NULL, 0, FLOW_TYPE_COMPOSITE);
(void) ipc_mutex_unlock(&filebench_shm->shm_flowop_lock);
if (flowop == NULL)
return (NULL);
flowop->fo_func = flowop_composite;
flowop->fo_init = flowop_composite_init;
flowop->fo_destruct = flowop_composite_destruct;
(void) ipc_mutex_unlock(&flowop->fo_lock);
return (flowop);
}
/*
* Composite flowop initialization. Creates runtime inner flowops
* from prototype inner flowops.
*/
static int
flowop_composite_init(flowop_t *flowop)
{
int err;
err = flowop_create_runtime_flowops(flowop->fo_thread,
&flowop->fo_comp_fops);
if (err != FILEBENCH_OK)
return (err);
(void) ipc_mutex_unlock(&flowop->fo_lock);
return (0);
}
void
flowop_destruct_generic(flowop_t *flowop)
{
char *buf;
/* release any local resources held by the flowop */
(void) ipc_mutex_lock(&flowop->fo_lock);
buf = flowop->fo_buf;
flowop->fo_buf = NULL;
(void) ipc_mutex_unlock(&flowop->fo_lock);
if (buf)
free(buf);
}
/*
* Searches the provided threadflow list for the named threadflow.
* A pointer to the threadflow is returned, or NULL if threadflow
* is not found.
*/
threadflow_t *
threadflow_find(threadflow_t *threadlist, char *name)
{
threadflow_t *threadflow = threadlist;
(void) ipc_mutex_lock(&filebench_shm->threadflow_lock);
while (threadflow) {
if (strcmp(name, threadflow->tf_name) == 0) {
(void) ipc_mutex_unlock(
&filebench_shm->threadflow_lock);
return (threadflow);
}
threadflow = threadflow->tf_next;
}
(void) ipc_mutex_unlock(&filebench_shm->threadflow_lock);
return (NULL);
}
/*
* Returns a pointer to flowop named "name" from the supplied tf_thrd_fops
* list of flowops. Returns the named flowop if found, or NULL.
*/
flowop_t *
flowop_find_from_list(char *name, flowop_t *list)
{
flowop_t *found_flowop;
flowop_find_barrier();
(void) ipc_mutex_lock(&filebench_shm->shm_flowop_lock);
found_flowop = flowop_recurse_search(NULL, name, list);
(void) ipc_mutex_unlock(&filebench_shm->shm_flowop_lock);
return (found_flowop);
}
/*
* Deletes shared memory region and resets shared memory region
* information in filebench_shm.
*/
void
ipc_ismdelete(void)
{
if (filebench_shm->shm_id == -1)
return;
filebench_log(LOG_VERBOSE, "Deleting ISM...");
(void) ipc_mutex_lock(&filebench_shm->ism_lock);
(void) shmctl(filebench_shm->shm_id, IPC_RMID, 0);
filebench_shm->shm_ptr = (char *)filebench_shm->shm_addr;
filebench_shm->shm_id = -1;
filebench_shm->shm_allocated = 0;
(void) ipc_mutex_unlock(&filebench_shm->ism_lock);
}
struct posset *
posset_find(char *name)
{
struct posset *ps;
(void)ipc_mutex_lock(&filebench_shm->shm_posset_lock);
ps = filebench_shm->shm_possetlist;
while (ps) {
if (!strcmp(avd_get_str(ps->ps_name), name))
break;
ps = ps->ps_next;
}
(void)ipc_mutex_unlock(&filebench_shm->shm_posset_lock);
return ps;
}
/*
* Iterates over all the file sets in the filesetlist,
* executing the supplied command "*cmd()" on them. Also
* indicates to the executed command if it is the first
* time the command has been executed since the current
* call to fileset_iter.
*/
void
fileset_iter(int (*cmd)(fileset_t *fileset, int first))
{
fileset_t *fileset = filebench_shm->filesetlist;
int count = 0;
(void) ipc_mutex_lock(&filebench_shm->fileset_lock);
while (fileset) {
cmd(fileset, count == 0);
fileset = fileset->fs_next;
count++;
}
(void) ipc_mutex_unlock(&filebench_shm->fileset_lock);
}
/*
* Create an in memory FLOW_MASTER thread object as described
* by the syntax. Acquire the filebench_shm->threadflow_lock and
* call threadflow_define_common() to create a threadflow entity.
* Set the number of instances to create at runtime,
* tf_instances, to "instances". Return the threadflow pointer
* returned by the threadflow_define_common call.
*/
threadflow_t *
threadflow_define(procflow_t *procflow, char *name,
threadflow_t *inherit, var_integer_t instances)
{
threadflow_t *threadflow;
(void) ipc_mutex_lock(&filebench_shm->threadflow_lock);
if ((threadflow = threadflow_define_common(procflow, name,
inherit, FLOW_MASTER)) == NULL)
return (NULL);
threadflow->tf_instances = instances;
(void) ipc_mutex_unlock(&filebench_shm->threadflow_lock);
return (threadflow);
}
/*
* Limited functionality allocator for use by custom variables to allocate
* state.
*/
void
*ipc_cvar_heapalloc(size_t size)
{
void *memory;
(void) ipc_mutex_lock(&filebench_shm->shm_malloc_lock);
if ((filebench_shm->shm_cvar_heapsize + size) <= FILEBENCH_CVAR_HEAPSIZE) {
memory = filebench_shm->shm_cvar_heap +
filebench_shm->shm_cvar_heapsize;
filebench_shm->shm_cvar_heapsize += size;
} else
memory = NULL;
(void) ipc_mutex_unlock(&filebench_shm->shm_malloc_lock);
return memory;
}
/*
* XXX No check is made for out-of-memory condition
*/
char *
ipc_ismmalloc(size_t size)
{
char *allocstr;
(void) ipc_mutex_lock(&filebench_shm->shm_ism_lock);
/* Map in shared memory */
(void) ipc_ismattach();
allocstr = filebench_shm->shm_ptr;
filebench_shm->shm_ptr += size;
filebench_shm->shm_allocated += size;
(void) ipc_mutex_unlock(&filebench_shm->shm_ism_lock);
return (allocstr);
}
/*
* Create a pool of shared memory to fit the per-thread
* allocations. Uses shmget() to create a shared memory region
* of size "size", attaches to it using shmat(), and stores
* the returned address of the region in filebench_shm->shm_addr.
* The pool is only created on the first call. The routine
* returns 0 if successful or the pool already exists,
* -1 otherwise.
*/
int
ipc_ismcreate(size_t size)
{
#ifdef HAVE_SHM_SHARE_MMU
int flag = SHM_SHARE_MMU;
#else
int flag = 0;
#endif /* HAVE_SHM_SHARE_MMU */
/* Already done? */
if (filebench_shm->shm_id != -1)
return (0);
filebench_log(LOG_VERBOSE,
"Creating %zd bytes of ISM Shared Memory...", size);
if ((filebench_shm->shm_id =
shmget(0, size, IPC_CREAT | 0666)) == -1) {
filebench_log(LOG_ERROR,
"Failed to create %zd bytes of ISM shared memory (ret = %d)", size, errno);
return (-1);
}
if ((filebench_shm->shm_addr = (caddr_t)shmat(filebench_shm->shm_id,
0, flag)) == (void *)-1) {
filebench_log(LOG_ERROR,
"Failed to attach %zd bytes of created ISM shared memory",
size);
return (-1);
}
filebench_shm->shm_ptr = (char *)filebench_shm->shm_addr;
filebench_log(LOG_VERBOSE,
"Allocated %zd bytes of ISM Shared Memory... at %zx",
size, filebench_shm->shm_addr);
/* Locked until allocated to block allocs */
(void) ipc_mutex_unlock(&filebench_shm->shm_ism_lock);
return (0);
}
int ioctl_mutex_unlock(struct ipc_driver *drv, unsigned long arg)
{
int error = 0;
struct ipc_unlock_t ipc_param;
if(copy_from_user(&ipc_param, (void *)arg, sizeof(struct ipc_unlock_t))) {
err_msg(err_trace, "%s(): Error in copy_from_user()\n", __FUNCTION__);
error = -EFAULT;
goto do_exit;
}
error = ipc_mutex_unlock( drv, &ipc_param );
if(error < 0) {
err_msg(err_trace, "%s(): Error in ipc_mutex_unlock()\n", __FUNCTION__);
goto do_exit;
}
do_exit:
return error;
}
/*
* Given a pointer to the thread list of a procflow, cycles
* through all the threadflows on the list, deleting each one
* except the FLOW_MASTER.
*/
void
threadflow_delete_all(threadflow_t **threadlist)
{
threadflow_t *threadflow = *threadlist;
(void) ipc_mutex_lock(&filebench_shm->threadflow_lock);
filebench_log(LOG_DEBUG_IMPL, "Deleting all threads");
while (threadflow) {
if (threadflow->tf_instance &&
(threadflow->tf_instance == FLOW_MASTER)) {
threadflow = threadflow->tf_next;
continue;
}
(void) threadflow_delete(threadlist, threadflow);
threadflow = threadflow->tf_next;
}
(void) ipc_mutex_unlock(&filebench_shm->threadflow_lock);
}
void *
thread_routine(void *arg)
{
pthread_t p;
long tid;
int ret=0;
p = pthread_self();
tid = ((struct ipc_pthread_private *)p)->tid;
printf("I am tid:%x\n", tid);
printf("Will now get mutex %p\n", mtx);
ret = ipc_mutex_lock(mtx, NULL, 0);
if (ret != 0) {
printf("Ok I returned with %d err:%d - done\n",
ret, errno);
pthread_exit(&ret);
}
printf("I:%x now hold the lock, hit return when you want to release it\n",
tid);
ret = ipc_mutex_unlock(mtx, NULL);
printf("Released\n");
pthread_exit(&ret);
return (NULL);
}
/*
* Returns a pointer to the specified instance of flowop
* "name" from the global list.
*/
flowop_t *
flowop_find_one(char *name, int instance)
{
flowop_t *test_flowop;
flowop_find_barrier();
(void) ipc_mutex_lock(&filebench_shm->shm_flowop_lock);
test_flowop = filebench_shm->shm_flowoplist;
while (test_flowop) {
if ((strcmp(name, test_flowop->fo_name) == 0) &&
(instance == test_flowop->fo_instance))
break;
test_flowop = test_flowop->fo_next;
}
(void) ipc_mutex_unlock(&filebench_shm->shm_flowop_lock);
return (test_flowop);
}
/*
* Deletes all the flowops from a flowop list.
*/
void
flowop_delete_all(flowop_t **flowoplist)
{
flowop_t *flowop = *flowoplist;
flowop_t *next_flowop;
(void) ipc_mutex_lock(&filebench_shm->shm_flowop_lock);
while (flowop) {
filebench_log(LOG_DEBUG_IMPL, "Deleting flowop (%s-%d)",
flowop->fo_name, flowop->fo_instance);
if (flowop->fo_instance &&
(flowop->fo_instance == FLOW_MASTER)) {
flowop = flowop->fo_exec_next;
continue;
}
next_flowop = flowop->fo_exec_next;
flowop_delete(flowoplist, flowop);
flowop = next_flowop;
}
(void) ipc_mutex_unlock(&filebench_shm->shm_flowop_lock);
}
