#include <errno.h>
#include <assert.h>
+#include <systemd/sd-event.h>
+
#include "jobs.h"
#include "sig-monitor.h"
#include "verbose.h"
-/* describes pending job */
+#if 0
+#define _alert_ "do you really want to remove monitoring?"
+#define sig_monitor_init_timeouts() ((void)0)
+#define sig_monitor_clean_timeouts() ((void)0)
+#define sig_monitor(to,cb,arg) (cb(0,arg))
+#endif
+
+/** Internal shortcut for callback */
+typedef void (*job_cb_t)(int, void*, void *, void*);
+
+/** Description of a pending job */
struct job
{
- struct job *next; /* link to the next job enqueued */
- void *group; /* group of the request */
- void (*callback)(int,void*,void*,void*); /* processing callback */
- void *arg1; /* first arg */
- void *arg2; /* second arg */
- void *arg3; /* second arg */
- int timeout; /* timeout in second for processing the request */
- int blocked; /* is an other request blocking this one ? */
+ struct job *next; /**< link to the next job enqueued */
+ void *group; /**< group of the request */
+ job_cb_t callback; /**< processing callback */
+ void *arg1; /**< first arg */
+ void *arg2; /**< second arg */
+ void *arg3; /**< third arg */
+ int timeout; /**< timeout in second for processing the request */
+ unsigned blocked: 1; /**< is an other request blocking this one ? */
+ unsigned dropped: 1; /**< is removed ? */
+};
+
+/** Description of handled event loops */
+struct events
+{
+ struct events *next;
+ struct sd_event *event;
+ unsigned runs: 1;
};
-/** control of threads */
+/** Description of threads */
struct thread
{
- struct thread *next; /**< next thread of the list */
- struct thread *upper; /**< upper same thread */
- struct job *job; /**< currently processed job */
- pthread_t tid; /**< the thread id */
- unsigned stop: 1; /**< stop requested */
- unsigned lowered: 1; /**< has a lower same thread */
+ struct thread *next; /**< next thread of the list */
+ struct thread *upper; /**< upper same thread */
+ struct job *job; /**< currently processed job */
+ struct events *events; /**< currently processed job */
+ pthread_t tid; /**< the thread id */
+ unsigned stop: 1; /**< stop requested */
+ unsigned lowered: 1; /**< has a lower same thread */
+ unsigned waits: 1; /**< is waiting? */
};
/* synchronisation of threads */
static pthread_mutex_t mutex = PTHREAD_MUTEX_INITIALIZER;
static pthread_cond_t cond = PTHREAD_COND_INITIALIZER;
-/* count allowed, started and running threads */
+/* count allowed, started and waiting threads */
static int allowed = 0; /** allowed count of threads */
static int started = 0; /** started count of threads */
-static int running = 0; /** running count of threads */
-static int remains = 0; /** remaining count of jobs that can be created */
+static int waiting = 0; /** waiting count of threads */
+static int remains = 0; /** allowed count of waiting jobs */
+static int nevents = 0; /** count of events */
/* list of threads */
static struct thread *threads;
/* queue of pending jobs */
static struct job *first_job;
-static struct job *first_evloop;
+static struct events *first_events;
static struct job *free_jobs;
/**
* Create a new job with the given parameters
- * @param group the group of the job
- * @param timeout the timeout of the job (0 if none)
+ * @param group the group of the job
+ * @param timeout the timeout of the job (0 if none)
* @param callback the function that achieves the job
- * @param arg1 the first argument of the callback
- * @param arg2 the second argument of the callback
- * @param arg3 the third argument of the callback
+ * @param arg1 the first argument of the callback
+ * @param arg2 the second argument of the callback
+ * @param arg3 the third argument of the callback
* @return the created job unblock or NULL when no more memory
*/
static struct job *job_create(
void *group,
int timeout,
- void (*callback)(int, void*, void *, void*),
+ job_cb_t callback,
void *arg1,
void *arg2,
void *arg3)
job->arg2 = arg2;
job->arg3 = arg3;
job->blocked = 0;
+ job->dropped = 0;
end:
return job;
}
job2->blocked = 1;
}
- /* search end and blackers */
+ /* search end and blockers */
pjob = &first_job;
ijob = first_job;
while (ijob) {
/**
* Get the next job to process or NULL if none.
- * The returned job if any isn't removed from
- * the list of jobs.
- * @return the job to process
+ * @return the first job that isn't blocked or NULL
*/
static inline struct job *job_get()
{
- struct job *job;
-
- job = first_job;
+ struct job *job = first_job;
while (job && job->blocked)
job = job->next;
return job;
}
/**
- * Releases the processed 'job'
+ * Get the next events to process or NULL if none.
+ * @return the first events that isn't running or NULL
+ */
+static inline struct events *events_get()
+{
+ struct events *events = first_events;
+ while (events && events->runs)
+ events = events->next;
+ return events;
+}
+
+/**
+ * Releases the processed 'job': removes it
+ * from the list of jobs and unblock the first
+ * pending job of the same group if any.
* @param job the job to release
*/
static inline void job_release(struct job *job)
free_jobs = job;
}
-/** monitored call to the job */
+/**
+ * Monitored normal callback for a job.
+ * This function is called by the monitor
+ * to run the job when the safe environment
+ * is set.
+ * @param signum 0 on normal flow or the number
+ * of the signal that interrupted the normal
+ * flow
+ * @param arg the job to run
+ */
static void job_call(int signum, void *arg)
{
struct job *job = arg;
job->callback(signum, job->arg1, job->arg2, job->arg3);
}
-/** monitored cancel of the job */
+/**
+ * Monitored cancel callback for a job.
+ * This function is called by the monitor
+ * to cancel the job when the safe environment
+ * is set.
+ * @param signum 0 on normal flow or the number
+ * of the signal that interrupted the normal
+ * flow, isn't used
+ * @param arg the job to run
+ */
static void job_cancel(int signum, void *arg)
{
job_call(SIGABRT, arg);
}
-/* main loop of processing threads */
-static void thread_run(struct thread *me)
+/**
+ * Monitored normal callback for events.
+ * This function is called by the monitor
+ * to run the event loop when the safe environment
+ * is set.
+ * @param signum 0 on normal flow or the number
+ * of the signal that interrupted the normal
+ * flow
+ * @param arg the events to run
+ */
+static void events_call(int signum, void *arg)
+{
+ struct events *events = arg;
+ if (!signum)
+ sd_event_run(events->event, (uint64_t) -1);
+}
+
+/**
+ * Main processing loop of threads processing jobs.
+ * The loop must be called with the mutex locked
+ * and it returns with the mutex locked.
+ * @param me the description of the thread to use
+ * TODO: how are timeout handled when reentering?
+ */
+static void thread_run(volatile struct thread *me)
{
struct thread **prv;
struct job *job;
+ struct events *events;
- /* init */
+ /* initialize description of itself and link it in the list */
me->tid = pthread_self();
me->stop = 0;
me->lowered = 0;
+ me->waits = 0;
me->upper = current;
if (current)
current->lowered = 1;
else
sig_monitor_init_timeouts();
- current = me;
+ current = (struct thread*)me;
me->next = threads;
- threads = me;
+ threads = (struct thread*)me;
+ started++;
/* loop until stopped */
- running++;
+ me->events = NULL;
while (!me->stop) {
/* get a job */
- job = job_get();
- if (!job && first_job && running == 0) {
- /* sad situation!! should not happen */
- ERROR("threads are blocked!");
- job = first_job;
- first_job = job->next;
- }
+ job = job_get(first_job);
if (job) {
+ /* prepare running the job */
+ remains++; /* increases count of job that can wait */
+ job->blocked = 1; /* mark job as blocked */
+ me->job = job; /* record the job (only for terminate) */
+
/* run the job */
- remains++;
- job->blocked = 1;
- me->job = job;
pthread_mutex_unlock(&mutex);
sig_monitor(job->timeout, job_call, job);
pthread_mutex_lock(&mutex);
+
+ /* release the run job */
job_release(job);
+
+ /* release event if any */
+ events = me->events;
+ if (events) {
+ events->runs = 0;
+ me->events = NULL;
+ }
} else {
- /* no job, check evloop */
- job = first_evloop;
- if (job) {
- /* evloop */
- first_evloop = job->next;
+ /* no job, check events */
+ events = events_get();
+ if (events) {
+ /* run the events */
+ events->runs = 1;
+ me->events = events;
pthread_mutex_unlock(&mutex);
- sig_monitor(job->timeout, job_call, job);
+ sig_monitor(0, events_call, events);
pthread_mutex_lock(&mutex);
- job->next = first_evloop;
- first_evloop = job;
+ events->runs = 0;
+ me->events = NULL;
} else {
- /* no job and not evloop */
- running--;
+ /* no job and not events */
+ waiting++;
+ me->waits = 1;
pthread_cond_wait(&cond, &mutex);
- running++;
+ me->waits = 0;
+ waiting--;
}
}
}
- running--;
- /* uninit */
+ /* unlink the current thread and cleanup */
+ started--;
prv = &threads;
while (*prv != me)
prv = &(*prv)->next;
current->lowered = 0;
else
sig_monitor_clean_timeouts();
- pthread_mutex_unlock(&mutex);
}
-/* main loop of processing threads */
-static void *thread_create(void *data)
+/**
+ * Entry point for created threads.
+ * @param data not used
+ * @return NULL
+ */
+static void *thread_main(void *data)
{
struct thread me;
return NULL;
}
-/* start a new thread */
+/**
+ * Starts a new thread
+ * @return 0 in case of success or -1 in case of error
+ */
static int start_one_thread()
{
pthread_t tid;
int rc;
- assert(started < allowed);
-
- started++;
- rc = pthread_create(&tid, NULL, thread_create, NULL);
+ rc = pthread_create(&tid, NULL, thread_main, NULL);
if (rc != 0) {
- started--;
- errno = rc;
+ /* errno = rc; */
WARNING("not able to start thread: %m");
rc = -1;
}
return rc;
}
-static int start_one_thread_if_needed()
-{
- int rc;
-
- if (started == running && started < allowed) {
- /* all threads are busy and a new can be started */
- rc = start_one_thread();
- if (rc < 0 && started == 0)
- return rc; /* no thread available */
- }
- return 0;
-}
-
+/**
+ * Queues a new asynchronous job represented by 'callback'
+ * for the 'group' and the 'timeout'.
+ * Jobs are queued FIFO and are possibly executed in parallel
+ * concurrently except for job of the same group that are
+ * executed sequentially in FIFO order.
+ * @param group The group of the job or NULL when no group.
+ * @param timeout The maximum execution time in seconds of the job
+ * or 0 for unlimited time.
+ * @param callback The function to execute for achieving the job.
+ * Its first parameter is either 0 on normal flow
+ * or the signal number that broke the normal flow.
+ * @return 0 in case of success or -1 in case of error
+ */
int jobs_queue0(
void *group,
int timeout,
void (*callback)(int signum))
{
- return jobs_queue3(group, timeout, (void(*)(int,void*,void*,void*))callback, NULL, NULL, NULL);
+ return jobs_queue3(group, timeout, (job_cb_t)callback, NULL, NULL, NULL);
}
+/**
+ * Queues a new asynchronous job represented by 'callback' and 'arg1'
+ * for the 'group' and the 'timeout'.
+ * Jobs are queued FIFO and are possibly executed in parallel
+ * concurrently except for job of the same group that are
+ * executed sequentially in FIFO order.
+ * @param group The group of the job or NULL when no group.
+ * @param timeout The maximum execution time in seconds of the job
+ * or 0 for unlimited time.
+ * @param callback The function to execute for achieving the job.
+ * Its first parameter is either 0 on normal flow
+ * or the signal number that broke the normal flow.
+ * The remaining parameter is the parameter 'arg1'
+ * given here.
+ * @param arg1 The second argument for 'callback'
+ * @return 0 in case of success or -1 in case of error
+ */
int jobs_queue(
void *group,
int timeout,
void (*callback)(int, void*),
void *arg)
{
- return jobs_queue3(group, timeout, (void(*)(int,void*,void*,void*))callback, arg, NULL, NULL);
+ return jobs_queue3(group, timeout, (job_cb_t)callback, arg, NULL, NULL);
}
+/**
+ * Queues a new asynchronous job represented by 'callback' and 'arg[12]'
+ * for the 'group' and the 'timeout'.
+ * Jobs are queued FIFO and are possibly executed in parallel
+ * concurrently except for job of the same group that are
+ * executed sequentially in FIFO order.
+ * @param group The group of the job or NULL when no group.
+ * @param timeout The maximum execution time in seconds of the job
+ * or 0 for unlimited time.
+ * @param callback The function to execute for achieving the job.
+ * Its first parameter is either 0 on normal flow
+ * or the signal number that broke the normal flow.
+ * The remaining parameters are the parameters 'arg[12]'
+ * given here.
+ * @param arg1 The second argument for 'callback'
+ * @param arg2 The third argument for 'callback'
+ * @return 0 in case of success or -1 in case of error
+ */
int jobs_queue2(
void *group,
int timeout,
void *arg1,
void *arg2)
{
- return jobs_queue3(group, timeout, (void(*)(int,void*,void*,void*))callback, arg1, arg2, NULL);
+ return jobs_queue3(group, timeout, (job_cb_t)callback, arg1, arg2, NULL);
}
-/* queue the job to the 'callback' using a separate thread if available */
+/**
+ * Queues a new asynchronous job represented by 'callback' and 'arg[123]'
+ * for the 'group' and the 'timeout'.
+ * Jobs are queued FIFO and are possibly executed in parallel
+ * concurrently except for job of the same group that are
+ * executed sequentially in FIFO order.
+ * @param group The group of the job or NULL when no group.
+ * @param timeout The maximum execution time in seconds of the job
+ * or 0 for unlimited time.
+ * @param callback The function to execute for achieving the job.
+ * Its first parameter is either 0 on normal flow
+ * or the signal number that broke the normal flow.
+ * The remaining parameters are the parameters 'arg[123]'
+ * given here.
+ * @param arg1 The second argument for 'callback'
+ * @param arg2 The third argument for 'callback'
+ * @param arg3 The forth argument for 'callback'
+ * @return 0 in case of success or -1 in case of error
+ */
int jobs_queue3(
void *group,
int timeout,
}
/* start a thread if needed */
- rc = start_one_thread_if_needed();
- if (rc < 0) {
- /* failed to start threading */
- info = "can't start first thread";
- goto error2;
+ if (waiting == 0 && started < allowed) {
+ /* all threads are busy and a new can be started */
+ rc = start_one_thread();
+ if (rc < 0 && started == 0) {
+ info = "can't start first thread";
+ goto error2;
+ }
}
/* queues the job */
remains--;
job_add2(job, NULL);
- pthread_mutex_unlock(&mutex);
/* signal an existing job */
pthread_cond_signal(&cond);
+ pthread_mutex_unlock(&mutex);
return 0;
error2:
return -1;
}
-/* initialise the threads */
-int jobs_init(int allowed_count, int start_count, int waiter_count)
-{
- /* records the allowed count */
- allowed = allowed_count;
- started = 0;
- running = 0;
- remains = waiter_count;
-
- /* start at least one thread */
- pthread_mutex_lock(&mutex);
- while (started < start_count && start_one_thread() == 0);
- pthread_mutex_unlock(&mutex);
-
- /* end */
- return -(started != start_count);
-}
-
+/**
+ * Run a asynchronous job represented by 'callback'
+ * with the 'timeout' but only returns after job completion.
+ * @param timeout The maximum execution time in seconds of the job
+ * or 0 for unlimited time.
+ * @param callback The function to execute for achieving the job.
+ * Its first parameter is either 0 on normal flow
+ * or the signal number that broke the normal flow.
+ * @return 0 in case of success or -1 in case of error
+ */
int jobs_invoke0(
int timeout,
void (*callback)(int signum))
{
- return jobs_invoke3(timeout, (void(*)(int,void*,void*,void*))callback, NULL, NULL, NULL);
+ return jobs_invoke3(timeout, (job_cb_t)callback, NULL, NULL, NULL);
}
+/**
+ * Run a asynchronous job represented by 'callback' and 'arg1'
+ * with the 'timeout' but only returns after job completion.
+ * @param timeout The maximum execution time in seconds of the job
+ * or 0 for unlimited time.
+ * @param callback The function to execute for achieving the job.
+ * Its first parameter is either 0 on normal flow
+ * or the signal number that broke the normal flow.
+ * The remaining parameter is the parameter 'arg1'
+ * given here.
+ * @param arg1 The second argument for 'callback'
+ * @return 0 in case of success or -1 in case of error
+ */
int jobs_invoke(
int timeout,
void (*callback)(int, void*),
void *arg)
{
- return jobs_invoke3(timeout, (void(*)(int,void*,void*,void*))callback, arg, NULL, NULL);
+ return jobs_invoke3(timeout, (job_cb_t)callback, arg, NULL, NULL);
}
+/**
+ * Run a asynchronous job represented by 'callback' and 'arg[12]'
+ * with the 'timeout' but only returns after job completion.
+ * @param timeout The maximum execution time in seconds of the job
+ * or 0 for unlimited time.
+ * @param callback The function to execute for achieving the job.
+ * Its first parameter is either 0 on normal flow
+ * or the signal number that broke the normal flow.
+ * The remaining parameters are the parameters 'arg[12]'
+ * given here.
+ * @param arg1 The second argument for 'callback'
+ * @param arg2 The third argument for 'callback'
+ * @return 0 in case of success or -1 in case of error
+ */
int jobs_invoke2(
int timeout,
void (*callback)(int, void*, void*),
void *arg1,
void *arg2)
{
- return jobs_invoke3(timeout, (void(*)(int,void*,void*,void*))callback, arg1, arg2, NULL);
+ return jobs_invoke3(timeout, (job_cb_t)callback, arg1, arg2, NULL);
}
+/**
+ * Stops the thread pointed by 'arg1'. Used with
+ * invoke familly to return to the caller after completion.
+ * @param signum Unused
+ * @param arg1 The thread to stop
+ * @param arg2 Unused
+ * @param arg3 Unused
+ */
static void unlock_invoker(int signum, void *arg1, void *arg2, void *arg3)
{
struct thread *t = arg1;
pthread_mutex_lock(&mutex);
t->stop = 1;
+ if (t->waits)
+ pthread_cond_broadcast(&cond);
pthread_mutex_unlock(&mutex);
}
-/* invoke the job to the 'callback' using a separate thread if available */
+/**
+ * Run a asynchronous job represented by 'callback' and 'arg[123]'
+ * with the 'timeout' but only returns after job completion.
+ * @param timeout The maximum execution time in seconds of the job
+ * or 0 for unlimited time.
+ * @param callback The function to execute for achieving the job.
+ * Its first parameter is either 0 on normal flow
+ * or the signal number that broke the normal flow.
+ * The remaining parameters are the parameters 'arg[123]'
+ * given here.
+ * @param arg1 The second argument for 'callback'
+ * @param arg2 The third argument for 'callback'
+ * @param arg3 The forth argument for 'callback'
+ * @return 0 in case of success or -1 in case of error
+ */
int jobs_invoke3(
int timeout,
void (*callback)(int, void*, void *, void*),
void *arg2,
void *arg3)
{
- const char *info;
struct job *job1, *job2;
- int rc;
struct thread me;
pthread_mutex_lock(&mutex);
job1 = job_create(&me, timeout, callback, arg1, arg2, arg3);
job2 = job_create(&me, 0, unlock_invoker, &me, NULL, NULL);
if (!job1 || !job2) {
+ ERROR("out of memory");
errno = ENOMEM;
- info = "out of memory";
- goto error;
- }
-
- /* start a thread if needed */
- rc = start_one_thread_if_needed();
- if (rc < 0) {
- /* failed to start threading */
- info = "can't start first thread";
- goto error;
+ if (job1) {
+ job1->next = free_jobs;
+ free_jobs = job1;
+ }
+ if (job2) {
+ job2->next = free_jobs;
+ free_jobs = job2;
+ }
+ pthread_mutex_unlock(&mutex);
+ return -1;
}
/* queues the job */
job_add2(job1, job2);
- /* run untill stopped */
+ /* run until stopped */
thread_run(&me);
pthread_mutex_unlock(&mutex);
return 0;
+}
-error:
- if (job1) {
- job1->next = free_jobs;
- free_jobs = job1;
- }
- if (job2) {
- job2->next = free_jobs;
- free_jobs = job2;
- }
- ERROR("can't process job with threads: %s, %m", info);
+/**
+ * Initialise the job stuff.
+ * @param allowed_count Maximum count of thread for jobs (can be 0,
+ * see 'jobs_add_me' for merging new threads)
+ * @param start_count Count of thread to start now, must be lower.
+ * @param waiter_count Maximum count of jobs that can be waiting.
+ * @return 0 in case of success or -1 in case of error.
+ */
+int jobs_init(int allowed_count, int start_count, int waiter_count)
+{
+ int rc, launched;
+
+ assert(allowed_count >= 0);
+ assert(start_count >= 0);
+ assert(waiter_count > 0);
+ assert(start_count <= allowed_count);
+
+ /* records the allowed count */
+ allowed = allowed_count;
+ started = 0;
+ waiting = 0;
+ remains = waiter_count;
+
+ /* start at least one thread */
+ pthread_mutex_lock(&mutex);
+ launched = 0;
+ while (launched < start_count && start_one_thread() == 0)
+ launched++;
+ rc = -(launched != start_count);
pthread_mutex_unlock(&mutex);
- return -1;
+
+ /* end */
+ if (rc)
+ ERROR("Not all threads can be started");
+ return rc;
}
-/* terminate all the threads and all pending requests */
+/**
+ * Terminate all the threads and cancel all pending jobs.
+ */
void jobs_terminate()
{
struct job *job, *head, *tail;
- pthread_t me, other;
+ pthread_t me, *others;
struct thread *t;
+ int count;
/* how am i? */
me = pthread_self();
/* request all threads to stop */
pthread_mutex_lock(&mutex);
allowed = 0;
- for(;;) {
- /* search the next thread to stop */
- t = threads;
- while (t && pthread_equal(t->tid, me))
- t = t->next;
- if (!t)
- break;
- /* stop it */
- other = t->tid;
+
+ /* count the number of threads */
+ count = 0;
+ t = threads;
+ while (t) {
+ if (!t->upper && !pthread_equal(t->tid, me))
+ count++;
+ t = t->next;
+ }
+
+ /* fill the array of threads */
+ others = alloca(count * sizeof *others);
+ count = 0;
+ t = threads;
+ while (t) {
+ if (!t->upper && !pthread_equal(t->tid, me))
+ others[count++] = t->tid;
+ t = t->next;
+ }
+
+ /* stops the threads */
+ t = threads;
+ while (t) {
t->stop = 1;
- pthread_mutex_unlock(&mutex);
- pthread_cond_broadcast(&cond);
- pthread_join(other, NULL);
- pthread_mutex_lock(&mutex);
+ t = t->next;
}
+ /* wait the threads */
+ pthread_cond_broadcast(&cond);
+ pthread_mutex_unlock(&mutex);
+ while (count)
+ pthread_join(others[--count], NULL);
+ pthread_mutex_lock(&mutex);
+
/* cancel pending jobs of other threads */
+ remains = 0;
head = first_job;
first_job = NULL;
tail = NULL;
pthread_mutex_unlock(&mutex);
}
-int jobs_add_event_loop(void *key, int timeout, void (*evloop)(int signum, void*), void *closure)
-{
- struct job *job;
-
- pthread_mutex_lock(&mutex);
- job = job_create(key, timeout, (void (*)(int, void *, void *, void *))evloop, closure, NULL, NULL);
- if (job) {
- /* adds the loop */
- job->next = first_evloop;
- first_evloop = job;
-
- /* signal the loop */
- pthread_cond_signal(&cond);
- }
- pthread_mutex_unlock(&mutex);
- return -!job;
-}
-
+/**
+ * Adds the current thread to the pool of threads
+ * processing the jobs. Returns normally when the threads are
+ * terminated or immediately with an error if the thread is
+ * already in the pool.
+ * @return 0 in case of success or -1 in case of error
+ */
int jobs_add_me()
{
struct thread me;
}
+struct sd_event *jobs_get_sd_event()
+{
+ struct events *events;
+ struct thread *me;
+ int rc;
+
+ pthread_mutex_lock(&mutex);
+
+ /* search events on stack */
+ me = current;
+ while (me && !me->events)
+ me = me->upper;
+ if (me)
+ /* return the stacked events */
+ events = me->events;
+ else {
+ /* search an available events */
+ events = events_get();
+ if (!events) {
+ /* not found, check if creation possible */
+ if (nevents >= allowed) {
+ ERROR("not possible to add a new event");
+ events = NULL;
+ } else {
+ events = malloc(sizeof *events);
+ if (events && (rc = sd_event_new(&events->event)) >= 0) {
+ if (nevents < started || start_one_thread() >= 0) {
+ events->runs = 0;
+ events->next = first_events;
+ first_events = events;
+ } else {
+ ERROR("can't start thread for events");
+ sd_event_unref(events->event);
+ free(events);
+ events = NULL;
+ }
+ } else {
+ if (!events)
+ ERROR("out of memory");
+ else {
+ free(events);
+ ERROR("creation of sd_event failed: %m");
+ events = NULL;
+ errno = -rc;
+ }
+ }
+ }
+ }
+ if (events) {
+ /* */
+ me = current;
+ if (me) {
+ events->runs = 1;
+ me->events = events;
+ } else {
+ WARNING("event returned for unknown thread!");
+ }
+ }
+ }
+ pthread_mutex_unlock(&mutex);
+ return events ? events->event : NULL;
+}
+
Code Review / src / app-framework-binder.git / blobdiff