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Viewing changes to thread_create.c

  • Committer: Bazaar Package Importer
  • Author(s): Simon Richter
  • Date: 2009-11-30 15:26:21 UTC
  • Revision ID: james.westby@ubuntu.com-20091130152621-kxucetq7b43lx9fu
Tags: upstream-0.1
Import upstream version 0.1

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Lines of Context:
thread_create.c
 
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#ifdef HAVE_CONFIG_H
 
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#include <config.h>
 
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#endif
 
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#include "store.h"
 
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#include "real.h"
 
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#include <stdio.h>
 
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struct startupinfo
 
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{
 
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    void *(*start_routine)(void *);
 
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    void *arg;
 
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    pthread_cond_t cond;
 
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    pthread_mutex_t mutex;
 
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};
 
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static void cleanup(void *thread)
 
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{
 
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    struct thread *t = (struct thread *)thread;
 
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    fprintf(stderr, "thread exit #%u\n", t->num);
 
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}
 
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static void *startup(void *startupinfo)
 
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{
 
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    struct startupinfo *sui = (struct startupinfo *)startupinfo;
 
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    void *(*start_routine)(void *) = sui->start_routine;
 
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    void *arg = sui->arg;
 
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    real_mutex_lock(&sui->mutex);
 
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    real_cond_signal(&sui->cond);
 
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    real_mutex_unlock(&sui->mutex);
 
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    struct thread *t = find_thread(pthread_self());
 
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    fprintf(stderr, "thread create #%u\n", t->num);
 
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    void *res;
 
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    pthread_cleanup_push(&cleanup, t);
 
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    res = start_routine(arg);
 
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    pthread_cleanup_pop(1);
 
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    return res;
 
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}
 
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int pthread_create(
 
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        pthread_t *thread,
 
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        pthread_attr_t const *attr,
 
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        void *(*start_routine)(void*),
 
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        void *arg)
 
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{
 
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    struct startupinfo sui = { start_routine, arg, {}, {} };
 
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    real_cond_init(&sui.cond, 0);
 
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    real_mutex_init(&sui.mutex, 0);
 
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    real_mutex_lock(&sui.mutex);
 
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    int res = real_create(thread, attr, &startup, &sui);
 
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    real_cond_wait(&sui.cond, &sui.mutex);
 
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    real_mutex_unlock(&sui.mutex);
 
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    return res;
 
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}