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authorMauro Carvalho Chehab <mchehab@osg.samsung.com>2015-07-06 10:09:15 -0300
committerOlliver Schinagl <oliver@schinagl.nl>2015-07-06 21:21:42 +0200
commitb9be0a8386f619c9ac359f7b5aa8c8b80dea6113 (patch)
tree829c6f79bd7a891fa0e711c8fea2a138150b4e8d /dvb-t/de-Nordrhein-Westfalen
parentb76963f49a3f397bec3eb5124b5099ecf03d01de (diff)
downloaddtv-scan-tables-b9be0a8386f619c9ac359f7b5aa8c8b80dea6113.tar.gz
Add new cities to Brazilian ISDB-T lists
Several new cities gained digital coverture. Add entries for them. Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Diffstat (limited to 'dvb-t/de-Nordrhein-Westfalen')
0 files changed, 0 insertions, 0 deletions
generated by cgit v1.2.3 (git 2.25.1) at 2024-09-30 12:09:32 +0000
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/* $Id: thread.c,v 1.4 2004/06/01 06:45:30 reinelt Exp $
 *
 * thread handling (mutex, shmem, ...)
 *
 * Copyright 2004 Michael Reinelt <reinelt@eunet.at>
 * Copyright 2004 The LCD4Linux Team <lcd4linux-devel@users.sourceforge.net>
 *
 * parts of this code are based on the old XWindow driver which is
 * Copyright 2000 Herbert Rosmanith <herp@wildsau.idv.uni-linz.ac.at>
 *
 * This file is part of LCD4Linux.
 *
 * LCD4Linux is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2, or (at your option)
 * any later version.
 *
 * LCD4Linux is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 *
 *
 * $Log: thread.c,v $
 * Revision 1.4  2004/06/01 06:45:30  reinelt
 *
 * some Fixme's processed
 * documented some code
 *
 * Revision 1.3  2004/04/08 10:48:25  reinelt
 * finished plugin_exec
 * modified thread handling
 * added '%x' format to qprintf (hexadecimal)
 *
 * Revision 1.2  2004/03/20 07:31:33  reinelt
 * support for HD66712 (which has a different RAM layout)
 * further threading development
 *
 * Revision 1.1  2004/03/19 06:37:47  reinelt
 * asynchronous thread handling started
 *
 */

/* 
 * exported functions:
 * 
 * int  mutex_create  (void);
 *   creates a mutex and treturns its ID
 * 
 * void mutex_lock    (int semid);
 *   try to lock a mutex
 *
 * void mutex_unlock  (int semid);
 *   unlock a mutex
 *
 * void mutex_destroy (int semid);
 *   release a mutex
 *
 *
 * int shm_create    (void **buffer, int size);
 *   create shared memory segment
 *
 * void shm_destroy   (int shmid, void *buffer) ;
 *   release shared memory segment
 *
 * int thread_create (char *name, void (*thread)(void *data), void *data);
 *   create a new thread
 *
 */


#include "config.h"

#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <unistd.h>
#include <errno.h>
#include <signal.h>
#include <sys/types.h>
#include <sys/ipc.h>
#include <sys/sem.h>
#include <sys/shm.h>

#include "debug.h"
#include "thread.h"


#ifdef WITH_DMALLOC
#include <dmalloc.h>
#endif


/* glibc 2.1 requires defining semun ourselves */
#ifdef _SEM_SEMUN_UNDEFINED
union semun {
  int val;
  struct semid_ds *buf;
  unsigned short int *array;
  struct seminfo *__buf;
};
#endif


int mutex_create (void)
{
  int semid;
  union semun semun;
  
  semid = semget(IPC_PRIVATE, 1, 0);
  if (semid == -1) {
    error ("fatal error: semget() failed: %s", strerror(errno));
    return -1;
  }
  semun.val = 1;
  semctl(semid, 0, SETVAL, semun);
  
  return semid;
}


void mutex_lock (int semid) 
{
  struct sembuf sembuf;
  sembuf.sem_num =  0;
  sembuf.sem_op  = -1;
  sembuf.sem_flg =  0;
  semop (semid, &sembuf, 1);
}


void mutex_unlock (int semid) 
{
  struct sembuf sembuf;
  sembuf.sem_num = 0;
  sembuf.sem_op  = 1;
  sembuf.sem_flg = 0;
  semop (semid, &sembuf, 1);
}


void mutex_destroy (int semid)
{
  union semun arg;
  semctl(semid, 0, IPC_RMID, arg);
}


int shm_create (void **buffer, int size) 
{
  int shmid;
  
  shmid = shmget(IPC_PRIVATE, size, SHM_R|SHM_W);
  if (shmid==-1) {
    error ("fatal error: shmget() failed: %s", strerror(errno));
    return -1;
  }

  *buffer = shmat(shmid, NULL, 0);
  if (*buffer == NULL) {
    error ("fatal error: shmat() failed: %s", strerror(errno));
    return -1;
  }
  
  return shmid;
}


void shm_destroy (int shmid, void *buffer) 
{
  shmdt (buffer);
  shmctl(shmid, IPC_RMID, NULL);
}


int thread_create (char *name, void (*thread)(void *data), void *data)
{
  pid_t pid, ppid;

  ppid=getpid();

  switch (pid = fork()) {
  case -1:
    error ("fatal error: fork(%s) failed: %s", name, strerror(errno));
    return -1;
  case 0:
    info ("thread %s starting...", name);
    thread(data);
    info ("thread %s ended.", name);
    exit (0);
  default:
    info ("forked process %d for thread %s", pid, name);
  }
  
  return pid;
}