Removed useless alternative after zombies turned out to be caused by gdb
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2d131a1741
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@ -1 +1 @@
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#define Cdrskin_timestamP "2007.10.19.132821"
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#define Cdrskin_timestamP "2007.10.19.133310"
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@ -1,39 +1,25 @@
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/* -*- indent-tabs-mode: t; tab-width: 8; c-basic-offset: 8; -*- */
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/* ts A71019 : burry dead puppies before forgetting them */
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/* ts A71019 */
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/* Standard measure : Threads are created detached.
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/* Standard measure should be: Threads are created detached.
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According to the man pages they should then care for disposing themselves.
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Does not help on my SuSE 9.3
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*/
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>>> ??? It is yet unclear why the threads vanish from the process list
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even if joinable and even if never joined.
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To be activated after release of libburn-0.4.0
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#define Libburn_create_detached_threadS 1
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/* Addon with certain impact on application:
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Call wait3() more often than pthread_create()
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Does not help on my SuSE 9.3
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#define Libburn_use_wait3 1
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*/
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/* Alternative 1 : Threads are created joinable.
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Workers get transferred to the done_workers list and then joined with
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the next thread going to that list.
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Does not help on my SuSE 9.3
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#define Libburn_remove_done_workerS 1
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*/
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/* Alternative 2 : Threads are created joinable.
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/* Alternative : Threads are created joinable.
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Threads get detached in remove_worker() and thus should dispose themselves.
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Does not help on my SuSE 9.3
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Note: this works only if Libburn_remove_done_workerS is not defined.
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#define Libburn_detach_done_workeR 1
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*/
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#include "libburn.h"
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#include "transport.h"
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@ -51,9 +37,6 @@
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#include <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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#include <sys/time.h>
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#include <sys/resource.h>
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#include <sys/wait.h>
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/*
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#include <a ssert.h>
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@ -120,10 +103,6 @@ struct w_list
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static struct w_list *workers = NULL;
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#ifdef Libburn_remove_done_workerS
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static struct w_list *done_workers = NULL;
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#endif
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static struct w_list *find_worker(struct burn_drive *d)
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{
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@ -145,11 +124,6 @@ static void add_worker(struct burn_drive *d, WorkerFunc f, void *data)
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pthread_attr_t attr;
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#endif
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#ifdef Libburn_use_wait3
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wait3(NULL,WNOHANG,NULL);
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wait3(NULL,WNOHANG,NULL);
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#endif
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a = malloc(sizeof(struct w_list));
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a->drive = d;
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a->u = *(union w_list_data *)data;
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@ -183,50 +157,14 @@ static void add_worker(struct burn_drive *d, WorkerFunc f, void *data)
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}
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#ifdef Libburn_remove_done_workerS
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/* ts A71019 : burry dead puppies before forgetting them */
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/* Alternative 1 : Threads are created joinable.
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Workers get transferred to the done_workers list and then joined with
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the next thread going to that list.
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Does not work on my SuSE 9.3
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*/
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int burn_remove_done_workers(int flag)
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{
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int ret;
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char msg[80];
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struct w_list *next;
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while (done_workers != NULL) {
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ret = pthread_join(done_workers->thread, NULL);
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sprintf(msg,
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"burn_remove_done_workers(): pthread_join(%lu) = %d",
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(unsigned long) done_workers->thread, ret);
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libdax_msgs_submit(libdax_messenger, -1, 0x00020158,
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LIBDAX_MSGS_SEV_DEBUG, LIBDAX_MSGS_PRIO_LOW,
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msg, 0, 0);
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next = done_workers->next;
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free(done_workers);
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done_workers = next;
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}
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return 1;
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}
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#endif /* Libburn_remove_done_workerS */
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static void remove_worker(pthread_t th)
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{
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struct w_list *a, *l = NULL;
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#ifdef Libburn_remove_done_workerS
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burn_remove_done_workers(0);
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#else
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#ifdef Libburn_detach_done_workeR
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int ret;
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char msg[80];
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#endif
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#endif /* ! Libburn_remove_done_workerS && ! Libburn_detach_done_workeR */
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for (a = workers; a; l = a, a = a->next)
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if (a->thread == th) {
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@ -235,15 +173,10 @@ static void remove_worker(pthread_t th)
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else
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workers = a->next;
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#ifdef Libburn_remove_done_workerS
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a->next= done_workers;
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done_workers= a;
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#else
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#ifdef Libburn_detach_done_workeR
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/* ts A71019 : burry dead puppy before forgetting it */
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/* Alternative 2 : threads get detached and thus should
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/* Alternative : threads get detached and thus should
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dispose themselves.
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Does not work on my SuSE 9.3
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*/
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ret = pthread_detach(th);
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sprintf(msg,
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@ -256,7 +189,6 @@ static void remove_worker(pthread_t th)
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#endif /* Libburn_detach_done_workeR */
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free(a);
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#endif
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break;
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}
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@ -590,6 +522,9 @@ int burn_fifo_start(struct burn_source *source, int flag)
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}
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#ifdef Libburn_has_burn_async_join_alL
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/* ts A71019 : never used */
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void burn_async_join_all(void)
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{
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void *ret;
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@ -597,3 +532,7 @@ void burn_async_join_all(void)
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while (workers)
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pthread_join(workers->thread, &ret);
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}
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#endif /* Libburn_has_burn_async_join_alL */
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