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[/] [or1k/] [tags/] [stable_0_2_0_rc1/] [or1ksim/] [vapi/] [vapi.c] - Diff between revs 1572 and 1765

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/* vapi.c -- Verification API Interface
/* vapi.c -- Verification API Interface
   Copyright (C) 2001, Marko Mlinar, markom@opencores.org
   Copyright (C) 2001, Marko Mlinar, markom@opencores.org
 
 
This file is part of OpenRISC 1000 Architectural Simulator.
This file is part of OpenRISC 1000 Architectural Simulator.
 
 
This program is free software; you can redistribute it and/or modify
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
(at your option) any later version.
 
 
This program is distributed in the hope that it will be useful,
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.
GNU General Public License for more details.
 
 
You should have received a copy of the GNU General Public License
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
 
 
#include "config.h"
#include "config.h"
 
 
#include <stdio.h>
#include <stdio.h>
#include <ctype.h>
#include <ctype.h>
#include <string.h>
#include <string.h>
#include <stdlib.h>
#include <stdlib.h>
#include <unistd.h>
#include <unistd.h>
#include <stdarg.h>
#include <stdarg.h>
#include <signal.h>
#include <signal.h>
#include <errno.h>
#include <errno.h>
 
 
/* Added by CZ 24/05/01 */
/* Added by CZ 24/05/01 */
#include <sys/stat.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <netinet/in.h>
#include <sys/select.h>
#include <sys/select.h>
#include <sys/poll.h>
#include <sys/poll.h>
#include <fcntl.h>
#include <fcntl.h>
#include <netdb.h>
#include <netdb.h>
#include <netinet/tcp.h>
#include <netinet/tcp.h>
 
 
#include "config.h"
#include "config.h"
 
 
#ifdef HAVE_INTTYPES_H
#ifdef HAVE_INTTYPES_H
#include <inttypes.h>
#include <inttypes.h>
#endif
#endif
 
 
#include "port.h"
#include "port.h"
#include "arch.h"
#include "arch.h"
#include "sim-config.h"
#include "sim-config.h"
#include "vapi.h"
#include "vapi.h"
#include "debug.h"
#include "debug.h"
 
 
DEFAULT_DEBUG_CHANNEL(vapi);
DEFAULT_DEBUG_CHANNEL(vapi);
 
 
static unsigned int serverIP = 0;
static unsigned int serverIP = 0;
 
 
static unsigned int server_fd = 0;
static unsigned int server_fd = 0;
static unsigned int nhandlers = 0;
static unsigned int nhandlers = 0;
 
 
static int tcp_level = 0;
static int tcp_level = 0;
 
 
static struct vapi_handler {
static struct vapi_handler {
  int fd;
  int fd;
  unsigned long base_id, num_ids;
  unsigned long base_id, num_ids;
  void (*read_func)(unsigned long, unsigned long, void *);
  void (*read_func)(unsigned long, unsigned long, void *);
  void *priv_dat;
  void *priv_dat;
  struct vapi_handler *next;
  struct vapi_handler *next;
  int temp;
  int temp;
} *vapi_handler = NULL;
} *vapi_handler = NULL;
 
 
/* Structure for polling, it is cached, that it doesn't have to be rebuilt each time */
/* Structure for polling, it is cached, that it doesn't have to be rebuilt each time */
static struct pollfd *fds = NULL;
static struct pollfd *fds = NULL;
static int nfds = 0;
static int nfds = 0;
 
 
/* Rebuilds the fds structures; see fds.  */
/* Rebuilds the fds structures; see fds.  */
void rebuild_fds () {
void rebuild_fds () {
  struct vapi_handler *t;
  struct vapi_handler *t;
  if (fds)
  if (fds)
    free (fds);
    free (fds);
  fds = (struct pollfd *) malloc (sizeof (struct pollfd) * (nhandlers + 1));
  fds = (struct pollfd *) malloc (sizeof (struct pollfd) * (nhandlers + 1));
  if (!fds) {
  if (!fds) {
    fprintf (stderr, "FATAL: Out of memory.\n");
    fprintf (stderr, "FATAL: Out of memory.\n");
    exit (1);
    exit (1);
  }
  }
 
 
  nfds = 0;
  nfds = 0;
  fds[nfds].fd = server_fd;
  fds[nfds].fd = server_fd;
  fds[nfds].events = POLLIN;
  fds[nfds].events = POLLIN;
  fds[nfds++].revents = 0;
  fds[nfds++].revents = 0;
 
 
  for (t = vapi_handler; t; t = t->next) {
  for (t = vapi_handler; t; t = t->next) {
    if (t->fd) {
    if (t->fd) {
      t->temp = nfds;
      t->temp = nfds;
      fds[nfds].fd = t->fd;
      fds[nfds].fd = t->fd;
      fds[nfds].events = POLLIN;
      fds[nfds].events = POLLIN;
      fds[nfds++].revents = 0;
      fds[nfds++].revents = 0;
    } else
    } else
      t->temp = -1;
      t->temp = -1;
  }
  }
}
}
 
 
/* Determines whether a certain handler handles an ID */
/* Determines whether a certain handler handles an ID */
static inline int handler_fits_id( const struct vapi_handler *t, unsigned long id ) {
static inline int handler_fits_id( const struct vapi_handler *t, unsigned long id ) {
  return ((id >= t->base_id) && (id < t->base_id + t->num_ids));
  return ((id >= t->base_id) && (id < t->base_id + t->num_ids));
}
}
 
 
/* Finds a handler with given ID, return it, NULL if not found.  */
/* Finds a handler with given ID, return it, NULL if not found.  */
static struct vapi_handler *find_handler (unsigned long id) {
static struct vapi_handler *find_handler (unsigned long id) {
  struct vapi_handler *t = vapi_handler;
  struct vapi_handler *t = vapi_handler;
  while (t && !handler_fits_id (t, id))
  while (t && !handler_fits_id (t, id))
    t = t->next;
    t = t->next;
  return t;
  return t;
}
}
 
 
/* Adds a handler with given id and returns it.  */
/* Adds a handler with given id and returns it.  */
static struct vapi_handler *add_handler (unsigned long base_id, unsigned long num_ids) {
static struct vapi_handler *add_handler (unsigned long base_id, unsigned long num_ids) {
  struct vapi_handler **t = &vapi_handler;
  struct vapi_handler **t = &vapi_handler;
  struct vapi_handler *tt;
  struct vapi_handler *tt;
  while ((*t))
  while ((*t))
    t = &(*t)->next;
    t = &(*t)->next;
  tt = (struct vapi_handler *)malloc (sizeof (struct vapi_handler));
  tt = (struct vapi_handler *)malloc (sizeof (struct vapi_handler));
  tt->next = NULL;
  tt->next = NULL;
  tt->base_id = base_id;
  tt->base_id = base_id;
  tt->num_ids = num_ids;
  tt->num_ids = num_ids;
  tt->read_func = NULL;
  tt->read_func = NULL;
  tt->priv_dat = NULL;
  tt->priv_dat = NULL;
  tt->fd = 0;
  tt->fd = 0;
  (*t) = tt;
  (*t) = tt;
  free (fds);
  free (fds);
  fds = NULL;
  fds = NULL;
  nhandlers++;
  nhandlers++;
  rebuild_fds ();
  rebuild_fds ();
  return tt;
  return tt;
}
}
 
 
void vapi_write_log_file(VAPI_COMMAND command, unsigned long devid, unsigned long data)
void vapi_write_log_file(VAPI_COMMAND command, unsigned long devid, unsigned long data)
{
{
  if (!runtime.vapi.vapi_file)
  if (!runtime.vapi.vapi_file)
    return;
    return;
  if (!config.vapi.hide_device_id && devid <= VAPI_MAX_DEVID)
  if (!config.vapi.hide_device_id && devid <= VAPI_MAX_DEVID)
    fprintf (runtime.vapi.vapi_file, "%04lx", devid);
    fprintf (runtime.vapi.vapi_file, "%04lx", devid);
  fprintf (runtime.vapi.vapi_file, "%1x%08lx\n", command, data);
  fprintf (runtime.vapi.vapi_file, "%1x%08lx\n", command, data);
}
}
 
 
static int vapi_write_stream(int fd, void* buf, int len)
static int vapi_write_stream(int fd, void* buf, int len)
{
{
  int n;
  int n;
  char* w_buf = (char*)buf;
  char* w_buf = (char*)buf;
  struct pollfd block;
  struct pollfd block;
 
 
  while(len) {
  while(len) {
    if((n = write(fd, w_buf, len)) < 0) {
    if((n = write(fd, w_buf, len)) < 0) {
      switch(errno) {
      switch(errno) {
      case EWOULDBLOCK: /* or EAGAIN */
      case EWOULDBLOCK: /* or EAGAIN */
        /* We've been called on a descriptor marked
        /* We've been called on a descriptor marked
           for nonblocking I/O. We better simulate
           for nonblocking I/O. We better simulate
           blocking behavior. */
           blocking behavior. */
        block.fd = fd;
        block.fd = fd;
        block.events = POLLOUT;
        block.events = POLLOUT;
        block.revents = 0;
        block.revents = 0;
        poll(&block,1,-1);
        poll(&block,1,-1);
        continue;
        continue;
      case EINTR:
      case EINTR:
        continue;
        continue;
      case EPIPE:
      case EPIPE:
        close(fd);
        close(fd);
        fd = 0;
        fd = 0;
        return -1;
        return -1;
      default:
      default:
        return -1;
        return -1;
      }
      }
    } else {
    } else {
      len -= n;
      len -= n;
      w_buf += n;
      w_buf += n;
    }
    }
  }
  }
  return 0;
  return 0;
}
}
 
 
static int vapi_read_stream(int fd, void* buf, int len)
static int vapi_read_stream(int fd, void* buf, int len)
{
{
  int n;
  int n;
  char* r_buf = (char*)buf;
  char* r_buf = (char*)buf;
  struct pollfd block;
  struct pollfd block;
 
 
  while(len) {
  while(len) {
    if((n = read(fd,r_buf,len)) < 0) {
    if((n = read(fd,r_buf,len)) < 0) {
      switch(errno) {
      switch(errno) {
      case EWOULDBLOCK: /* or EAGAIN */
      case EWOULDBLOCK: /* or EAGAIN */
        /* We've been called on a descriptor marked
        /* We've been called on a descriptor marked
           for nonblocking I/O. We better simulate
           for nonblocking I/O. We better simulate
           blocking behavior. */
           blocking behavior. */
        block.fd = fd;
        block.fd = fd;
        block.events = POLLIN;
        block.events = POLLIN;
        block.revents = 0;
        block.revents = 0;
        poll(&block,1,-1);
        poll(&block,1,-1);
        continue;
        continue;
      case EINTR:
      case EINTR:
        continue;
        continue;
      default:
      default:
        return -1;
        return -1;
      }
      }
    } else if(n == 0) {
    } else if(n == 0) {
      close(fd);
      close(fd);
      fd = 0;
      fd = 0;
      return -1;
      return -1;
    } else {
    } else {
      len -= n;
      len -= n;
      r_buf += n;
      r_buf += n;
    }
    }
  }
  }
  return 0;
  return 0;
}
}
 
 
/* Added by CZ 24/05/01 */
/* Added by CZ 24/05/01 */
int get_server_socket(const char* name,const char* proto,int port)
int get_server_socket(const char* name,const char* proto,int port)
{
{
  struct servent *service;
  struct servent *service;
  struct protoent *protocol;
  struct protoent *protocol;
  struct sockaddr_in sa;
  struct sockaddr_in sa;
  struct hostent *hp;
  struct hostent *hp;
  int sockfd;
  int sockfd;
  socklen_t len;
  socklen_t len;
  char myname[256];
  char myname[256];
  int flags;
  int flags;
  char sTemp[256];
  char sTemp[256];
 
 
  /* First, get the protocol number of TCP */
  /* First, get the protocol number of TCP */
  if(!(protocol = getprotobyname(proto))) {
  if(!(protocol = getprotobyname(proto))) {
    sprintf(sTemp,"Unable to load protocol \"%s\"",proto);
    sprintf(sTemp,"Unable to load protocol \"%s\"",proto);
    perror(sTemp);
    perror(sTemp);
    return 0;
    return 0;
  }
  }
  tcp_level = protocol->p_proto; /* Save for later */
  tcp_level = protocol->p_proto; /* Save for later */
 
 
  /* If we weren't passed a non standard port, get the port
  /* If we weren't passed a non standard port, get the port
     from the services directory. */
     from the services directory. */
  if(!port) {
  if(!port) {
    if((service = getservbyname(name,protocol->p_name)))
    if((service = getservbyname(name,protocol->p_name)))
      port = ntohs(service->s_port);
      port = ntohs(service->s_port);
  }
  }
 
 
  /* Create the socket using the TCP protocol */
  /* Create the socket using the TCP protocol */
  if((sockfd = socket(PF_INET,SOCK_STREAM,protocol->p_proto)) < 0) {
  if((sockfd = socket(PF_INET,SOCK_STREAM,protocol->p_proto)) < 0) {
    perror("Unable to create socket");
    perror("Unable to create socket");
    return 0;
    return 0;
  }
  }
 
 
  flags = 1;
  flags = 1;
  if(setsockopt(sockfd,SOL_SOCKET,SO_REUSEADDR,(const char*)&flags,sizeof(int)) < 0) {
  if(setsockopt(sockfd,SOL_SOCKET,SO_REUSEADDR,(const char*)&flags,sizeof(int)) < 0) {
    sprintf(sTemp,"Can not set SO_REUSEADDR option on socket %d",sockfd);
    sprintf(sTemp,"Can not set SO_REUSEADDR option on socket %d",sockfd);
    perror(sTemp);
    perror(sTemp);
    close(sockfd);
    close(sockfd);
    return 0;
    return 0;
  }
  }
 
 
  /* The server should also be non blocking. Get the current flags. */
  /* The server should also be non blocking. Get the current flags. */
  if(fcntl(sockfd,F_GETFL,&flags) < 0) {
  if(fcntl(sockfd,F_GETFL,&flags) < 0) {
    sprintf(sTemp,"Unable to get flags for socket %d",sockfd);
    sprintf(sTemp,"Unable to get flags for socket %d",sockfd);
    perror(sTemp);
    perror(sTemp);
    close(sockfd);
    close(sockfd);
    return 0;
    return 0;
  }
  }
 
 
  /* Set the nonblocking flag */
  /* Set the nonblocking flag */
  if(fcntl(sockfd,F_SETFL, flags | O_NONBLOCK) < 0) {
  if(fcntl(sockfd,F_SETFL, flags | O_NONBLOCK) < 0) {
    sprintf(sTemp,"Unable to set flags for socket %d to value 0x%08x",
    sprintf(sTemp,"Unable to set flags for socket %d to value 0x%08x",
            sockfd,flags | O_NONBLOCK);
            sockfd,flags | O_NONBLOCK);
    perror(sTemp);
    perror(sTemp);
    close(sockfd);
    close(sockfd);
    return 0;
    return 0;
  }
  }
 
 
  /* Find out what our address is */
  /* Find out what our address is */
  memset(&sa,0,sizeof(struct sockaddr_in));
  memset(&sa,0,sizeof(struct sockaddr_in));
  gethostname(myname,sizeof(myname));
  gethostname(myname,sizeof(myname));
  if(!(hp = gethostbyname(myname))) {
  if(!(hp = gethostbyname(myname))) {
    perror("Unable to read hostname");
    perror("Unable to read hostname");
    close(sockfd);
    close(sockfd);
    return 0;
    return 0;
  }
  }
 
 
  /* Bind our socket to the appropriate address */
  /* Bind our socket to the appropriate address */
  sa.sin_family = hp->h_addrtype;
  sa.sin_family = hp->h_addrtype;
  sa.sin_port = htons(port);
  sa.sin_port = htons(port);
  if(bind(sockfd,(struct sockaddr*)&sa,sizeof(struct sockaddr_in)) < 0) {
  if(bind(sockfd,(struct sockaddr*)&sa,sizeof(struct sockaddr_in)) < 0) {
    sprintf(sTemp,"Unable to bind socket %d to port %d",sockfd,port);
    sprintf(sTemp,"Unable to bind socket %d to port %d",sockfd,port);
    perror(sTemp);
    perror(sTemp);
    close(sockfd);
    close(sockfd);
    return 0;
    return 0;
  }
  }
  serverIP = sa.sin_addr.s_addr;
  serverIP = sa.sin_addr.s_addr;
  len = sizeof(struct sockaddr_in);
  len = sizeof(struct sockaddr_in);
  if(getsockname(sockfd,(struct sockaddr*)&sa,&len) < 0) {
  if(getsockname(sockfd,(struct sockaddr*)&sa,&len) < 0) {
    sprintf(sTemp,"Unable to get socket information for socket %d",sockfd);
    sprintf(sTemp,"Unable to get socket information for socket %d",sockfd);
    perror(sTemp);
    perror(sTemp);
    close(sockfd);
    close(sockfd);
    return 0;
    return 0;
  }
  }
  runtime.vapi.server_port = ntohs(sa.sin_port);
  runtime.vapi.server_port = ntohs(sa.sin_port);
 
 
  /* Set the backlog to 1 connections */
  /* Set the backlog to 1 connections */
  if(listen(sockfd,1) < 0) {
  if(listen(sockfd,1) < 0) {
    sprintf(sTemp,"Unable to set backlog on socket %d to %d",sockfd,1);
    sprintf(sTemp,"Unable to set backlog on socket %d to %d",sockfd,1);
    perror(sTemp);
    perror(sTemp);
    close(sockfd);
    close(sockfd);
    return 0;
    return 0;
  }
  }
 
 
  return sockfd;
  return sockfd;
}
}
 
 
static void server_request()
static void server_request()
{
{
  struct sockaddr_in sa;
  struct sockaddr_in sa;
  struct sockaddr* addr = (struct sockaddr*)&sa;
  struct sockaddr* addr = (struct sockaddr*)&sa;
  socklen_t len = sizeof(struct sockaddr_in);
  socklen_t len = sizeof(struct sockaddr_in);
  int fd = accept(server_fd, addr, &len);
  int fd = accept(server_fd, addr, &len);
  int on_off = 0; /* Turn off Nagel's algorithm on the socket */
  int on_off = 0; /* Turn off Nagel's algorithm on the socket */
  int flags;
  int flags;
  char sTemp[256];
  char sTemp[256];
 
 
  if(fd < 0) {
  if(fd < 0) {
    /* This is valid, because a connection could have started,
    /* This is valid, because a connection could have started,
       and then terminated due to a protocol error or user
       and then terminated due to a protocol error or user
       initiation before the accept could take place. */
       initiation before the accept could take place. */
    if(errno != EWOULDBLOCK && errno != EAGAIN) {
    if(errno != EWOULDBLOCK && errno != EAGAIN) {
      perror("accept");
      perror("accept");
      close(server_fd);
      close(server_fd);
      server_fd = 0;
      server_fd = 0;
      runtime.vapi.enabled = 0;
      runtime.vapi.enabled = 0;
      serverIP = 0;
      serverIP = 0;
    }
    }
    return;
    return;
  }
  }
 
 
  if(fcntl(fd,F_GETFL,&flags) < 0) {
  if(fcntl(fd,F_GETFL,&flags) < 0) {
    sprintf(sTemp,"Unable to get flags for vapi socket %d",fd);
    sprintf(sTemp,"Unable to get flags for vapi socket %d",fd);
    perror(sTemp);
    perror(sTemp);
    close(fd);
    close(fd);
    return;
    return;
  }
  }
 
 
  if(fcntl(fd,F_SETFL, flags | O_NONBLOCK) < 0) {
  if(fcntl(fd,F_SETFL, flags | O_NONBLOCK) < 0) {
    sprintf(sTemp,"Unable to set flags for vapi socket %d to value 0x%08x",
    sprintf(sTemp,"Unable to set flags for vapi socket %d to value 0x%08x",
            fd,flags | O_NONBLOCK);
            fd,flags | O_NONBLOCK);
    perror(sTemp);
    perror(sTemp);
    close(fd);
    close(fd);
    return;
    return;
  }
  }
 
 
  if(setsockopt(fd,tcp_level,TCP_NODELAY,&on_off,sizeof(int)) < 0) {
  if(setsockopt(fd,tcp_level,TCP_NODELAY,&on_off,sizeof(int)) < 0) {
    sprintf(sTemp,"Unable to disable Nagel's algorithm for socket %d.\nsetsockopt",fd);
    sprintf(sTemp,"Unable to disable Nagel's algorithm for socket %d.\nsetsockopt",fd);
    perror(sTemp);
    perror(sTemp);
    close(fd);
    close(fd);
    return;
    return;
  }
  }
 
 
  /* Install new handler */
  /* Install new handler */
  {
  {
    unsigned long id;
    unsigned long id;
    struct vapi_handler *t;
    struct vapi_handler *t;
    if (vapi_read_stream (fd, &id, sizeof (id))) {
    if (vapi_read_stream (fd, &id, sizeof (id))) {
      perror ("Cannot get id");
      perror ("Cannot get id");
      close (fd);
      close (fd);
      return;
      return;
    }
    }
    t = find_handler (id);
    t = find_handler (id);
    if (t) {
    if (t) {
      if (t->fd) {
      if (t->fd) {
        fprintf (stderr, "WARNING: Test with id %lx already connected. Ignoring.\n", id);
        fprintf (stderr, "WARNING: Test with id %lx already connected. Ignoring.\n", id);
        close (fd);
        close (fd);
        return;
        return;
      } else {
      } else {
        t->fd = fd;
        t->fd = fd;
        rebuild_fds ();
        rebuild_fds ();
      }
      }
    } else {
    } else {
      fprintf (stderr, "WARNING: Test with id %lx not registered. Ignoring.\n", id);
      fprintf (stderr, "WARNING: Test with id %lx not registered. Ignoring.\n", id);
      close(fd); /* kill the connection */
      close(fd); /* kill the connection */
      return;
      return;
    }
    }
    if(config.sim.verbose)
    if(config.sim.verbose)
      PRINTF ("\nConnection with test (id %lx) established.\n", id);
      PRINTF ("\nConnection with test (id %lx) established.\n", id);
  }
  }
}
}
 
 
static int write_packet (unsigned long id, unsigned long data) {
static int write_packet (unsigned long id, unsigned long data) {
  struct vapi_handler *t = find_handler (id);
  struct vapi_handler *t = find_handler (id);
  if (!t || !t->fd)
  if (!t || !t->fd)
    return 1;
    return 1;
  id = htonl (id);
  id = htonl (id);
  if (vapi_write_stream(t->fd, &id, sizeof (id)) < 0)
  if (vapi_write_stream(t->fd, &id, sizeof (id)) < 0)
    return 1;
    return 1;
  data = htonl (data);
  data = htonl (data);
  if (vapi_write_stream(t->fd, &data, sizeof (data)) < 0)
  if (vapi_write_stream(t->fd, &data, sizeof (data)) < 0)
    return 1;
    return 1;
  return 0;
  return 0;
}
}
 
 
static int read_packet (int fd, unsigned long *id, unsigned long *data)
static int read_packet (int fd, unsigned long *id, unsigned long *data)
{
{
  if (fd <= 0)
  if (fd <= 0)
    return 1;
    return 1;
  if (vapi_read_stream(fd, id, sizeof(unsigned long)) < 0)
  if (vapi_read_stream(fd, id, sizeof(unsigned long)) < 0)
    return 1;
    return 1;
  *id = ntohl (*id);
  *id = ntohl (*id);
  if (vapi_read_stream(fd, data, sizeof(unsigned long)) < 0)
  if (vapi_read_stream(fd, data, sizeof(unsigned long)) < 0)
    return 1;
    return 1;
  *data = ntohl (*data);
  *data = ntohl (*data);
  return 0;
  return 0;
}
}
 
 
static void vapi_request (struct vapi_handler *t)
static void vapi_request (struct vapi_handler *t)
{
{
  unsigned long id, data;
  unsigned long id, data;
 
 
  if (read_packet(t->fd, &id, &data)) {
  if (read_packet(t->fd, &id, &data)) {
    if (t->fd > 0) {
    if (t->fd > 0) {
      perror("vapi read");
      perror("vapi read");
      close(t->fd);
      close(t->fd);
      t->fd = 0;
      t->fd = 0;
      rebuild_fds ();
      rebuild_fds ();
    }
    }
    return;
    return;
  }
  }
 
 
  vapi_write_log_file (VAPI_COMMAND_REQUEST, id, data);
  vapi_write_log_file (VAPI_COMMAND_REQUEST, id, data);
  TRACE ("[%08lx, %08lx]\n", id, data);
  TRACE ("[%08lx, %08lx]\n", id, data);
 
 
  /* This packet may be for another handler */
  /* This packet may be for another handler */
  if (!handler_fits_id (t, id))
  if (!handler_fits_id (t, id))
    t = find_handler (id);
    t = find_handler (id);
  if (!t || !t->read_func)
  if (!t || !t->read_func)
    fprintf (stderr, "WARNING: Received packet for undefined id %08lx, data %08lx\n", id, data);
    fprintf (stderr, "WARNING: Received packet for undefined id %08lx, data %08lx\n", id, data);
  else
  else
    t->read_func(id, data, t->priv_dat);
    t->read_func(id, data, t->priv_dat);
}
}
 
 
void vapi_check ()
void vapi_check ()
{
{
  struct vapi_handler *t;
  struct vapi_handler *t;
 
 
  if (!server_fd || !fds) {
  if (!server_fd || !fds) {
    fprintf (stderr, "FATAL: Unable to maintain VAPI server.\n");
    fprintf (stderr, "FATAL: Unable to maintain VAPI server.\n");
    exit (1);
    exit (1);
  }
  }
 
 
  TRACE(".");
  TRACE(".");
 
 
  /* Handle everything in queue. */
  /* Handle everything in queue. */
  while(1) {
  while(1) {
    switch(poll(fds, nfds, 0)) {
    switch(poll(fds, nfds, 0)) {
    case -1:
    case -1:
      if(errno == EINTR)
      if(errno == EINTR)
        continue;
        continue;
      perror("poll");
      perror("poll");
      if (server_fd)
      if (server_fd)
        close(server_fd);
        close(server_fd);
      runtime.vapi.enabled = 0;
      runtime.vapi.enabled = 0;
      serverIP = 0;
      serverIP = 0;
      return;
      return;
    case 0: /* Nothing interesting going on */
    case 0: /* Nothing interesting going on */
      return;
      return;
    default:
    default:
      /* Handle the vapi ports first. */
      /* Handle the vapi ports first. */
      for (t = vapi_handler; t; t = t->next)
      for (t = vapi_handler; t; t = t->next)
        if (t->temp >= 0 && fds[t->temp].revents)
        if (t->temp >= 0 && fds[t->temp].revents)
          vapi_request (t);
          vapi_request (t);
 
 
      if(fds[0].revents) {
      if(fds[0].revents) {
        if(fds[0].revents & POLLIN)
        if(fds[0].revents & POLLIN)
          server_request();
          server_request();
        else { /* Error Occurred */
        else { /* Error Occurred */
          fprintf(stderr,"Received flags 0x%08x on server. Shutting down.\n", fds[0].revents);
          fprintf(stderr,"Received flags 0x%08x on server. Shutting down.\n", fds[0].revents);
          if (server_fd)
          if (server_fd)
            close(server_fd);
            close(server_fd);
          server_fd = 0;
          server_fd = 0;
          runtime.vapi.enabled = 0;
          runtime.vapi.enabled = 0;
          serverIP = 0;
          serverIP = 0;
        }
        }
      }
      }
      break;
      break;
    } /* End of switch statement */
    } /* End of switch statement */
  } /* End of while statement */
  } /* End of while statement */
}
}
 
 
/* Inits the VAPI, according to sim-config */
/* Inits the VAPI, according to sim-config */
int vapi_init ()
int vapi_init ()
{
{
  nhandlers = 0;
  nhandlers = 0;
  vapi_handler = NULL;
  vapi_handler = NULL;
  if (!runtime.vapi.enabled)
  if (!runtime.vapi.enabled)
    return 0; /* Nothing to do */
    return 0; /* Nothing to do */
 
 
  runtime.vapi.server_port = config.vapi.server_port;
  runtime.vapi.server_port = config.vapi.server_port;
  if (!runtime.vapi.server_port) {
  if (!runtime.vapi.server_port) {
    fprintf (stderr, "WARNING: server_port = 0, shutting down VAPI\n");
    fprintf (stderr, "WARNING: server_port = 0, shutting down VAPI\n");
    runtime.vapi.enabled = 0;
    runtime.vapi.enabled = 0;
    return 1;
    return 1;
  }
  }
  if ((server_fd = get_server_socket("or1ksim", "tcp", runtime.vapi.server_port)))
  if ((server_fd = get_server_socket("or1ksim", "tcp", runtime.vapi.server_port)))
    PRINTF("VAPI Server started on port %d\n", runtime.vapi.server_port);
    PRINTF("VAPI Server started on port %d\n", runtime.vapi.server_port);
  else {
  else {
    perror ("Connection");
    perror ("Connection");
    return 1;
    return 1;
  }
  }
 
 
  rebuild_fds ();
  rebuild_fds ();
 
 
  if ((runtime.vapi.vapi_file = fopen (config.vapi.vapi_fn, "wt+")) == NULL)
  if ((runtime.vapi.vapi_file = fopen (config.vapi.vapi_fn, "wt+")) == NULL)
    fprintf (stderr, "WARNING: cannot open VAPI log file\n");
    fprintf (stderr, "WARNING: cannot open VAPI log file\n");
 
 
  return 0;
  return 0;
}
}
 
 
/* Closes the VAPI */
/* Closes the VAPI */
void vapi_done ()
void vapi_done ()
{
{
  int i;
  int i;
  struct vapi_handler *t = vapi_handler;
  struct vapi_handler *t = vapi_handler;
 
 
  for (i = 0; i < nfds; i++)
  for (i = 0; i < nfds; i++)
    if (fds[i].fd)
    if (fds[i].fd)
      close (fds[i].fd);
      close (fds[i].fd);
  server_fd = 0;
  server_fd = 0;
  runtime.vapi.enabled = 0;
  runtime.vapi.enabled = 0;
  serverIP = 0;
  serverIP = 0;
  free (fds);
  free (fds);
  fds = 0;
  fds = 0;
  if (runtime.vapi.vapi_file) {
  if (runtime.vapi.vapi_file) {
    /* Mark end of simulation */
    /* Mark end of simulation */
    vapi_write_log_file (VAPI_COMMAND_END, 0, 0);
    vapi_write_log_file (VAPI_COMMAND_END, 0, 0);
    fclose (runtime.vapi.vapi_file);
    fclose (runtime.vapi.vapi_file);
  }
  }
 
 
  while (vapi_handler) {
  while (vapi_handler) {
    t = vapi_handler;
    t = vapi_handler;
    vapi_handler = vapi_handler->next;
    vapi_handler = vapi_handler->next;
    free (t);
    free (t);
  }
  }
}
}
 
 
/* Installs a vapi handler for one VAPI id */
/* Installs a vapi handler for one VAPI id */
void vapi_install_handler (unsigned long id, void (*read_func) (unsigned long, unsigned long, void *), void *dat)
void vapi_install_handler (unsigned long id, void (*read_func) (unsigned long, unsigned long, void *), void *dat)
{
{
  vapi_install_multi_handler (id, 1, read_func, dat);
  vapi_install_multi_handler (id, 1, read_func, dat);
}
}
 
 
/* Installs a vapi handler for many VAPI id */
/* Installs a vapi handler for many VAPI id */
void vapi_install_multi_handler (unsigned long base_id, unsigned long num_ids, void (*read_func) (unsigned long, unsigned long, void *), void *dat)
void vapi_install_multi_handler (unsigned long base_id, unsigned long num_ids, void (*read_func) (unsigned long, unsigned long, void *), void *dat)
{
{
  struct vapi_handler *tt;
  struct vapi_handler *tt;
 
 
  TRACE("vapi_install_handler %08lx, %lu, %p\n", base_id, num_ids, read_func);
  TRACE("vapi_install_handler %08lx, %lu, %p\n", base_id, num_ids, read_func);
  if (read_func == NULL) {
  if (read_func == NULL) {
    struct vapi_handler **t = &vapi_handler;
    struct vapi_handler **t = &vapi_handler;
    while ((*t) && !handler_fits_id (*t, base_id))
    while ((*t) && !handler_fits_id (*t, base_id))
      t = &(*t)->next;
      t = &(*t)->next;
    if (!t) {
    if (!t) {
      fprintf (stderr, "Cannot uninstall VAPI read handler from id %lx\n",
      fprintf (stderr, "Cannot uninstall VAPI read handler from id %lx\n",
               base_id);
               base_id);
      exit (1);
      exit (1);
    }
    }
    tt = *t;
    tt = *t;
    (*t) = (*t)->next;
    (*t) = (*t)->next;
    free (tt);
    free (tt);
    nhandlers--;
    nhandlers--;
  } else {
  } else {
    tt = find_handler (base_id);
    tt = find_handler (base_id);
    if (!tt) {
    if (!tt) {
      tt = add_handler (base_id, num_ids);
      tt = add_handler (base_id, num_ids);
      tt->read_func = read_func;
      tt->read_func = read_func;
      tt->priv_dat = dat;
      tt->priv_dat = dat;
    } else {
    } else {
      tt->read_func = read_func;
      tt->read_func = read_func;
      tt->priv_dat = dat;
      tt->priv_dat = dat;
      rebuild_fds ();
      rebuild_fds ();
    }
    }
  }
  }
}
}
 
 
/* Returns number of unconnected handles.  */
/* Returns number of unconnected handles.  */
int vapi_num_unconnected (int printout)
int vapi_num_unconnected (int printout)
{
{
  struct vapi_handler *t = vapi_handler;
  struct vapi_handler *t = vapi_handler;
  int numu = 0;
  int numu = 0;
  for (; t; t = t->next) {
  for (; t; t = t->next) {
    if (!t->fd) {
    if (!t->fd) {
      numu++;
      numu++;
      if (printout) {
      if (printout) {
        if ( t->num_ids == 1 )
        if ( t->num_ids == 1 )
          PRINTF (" 0x%lx", t->base_id);
          PRINTF (" 0x%lx", t->base_id);
        else
        else
          PRINTF (" 0x%lx..0x%lx", t->base_id, t->base_id + t->num_ids - 1);
          PRINTF (" 0x%lx..0x%lx", t->base_id, t->base_id + t->num_ids - 1);
      }
      }
    }
    }
  }
  }
  return numu;
  return numu;
}
}
 
 
/* Sends a packet to specified test */
/* Sends a packet to specified test */
void vapi_send (unsigned long id, unsigned long data)
void vapi_send (unsigned long id, unsigned long data)
{
{
  TRACE ("vapi_send [%08lx %08lx]\n", id, data);
  TRACE ("vapi_send [%08lx %08lx]\n", id, data);
  vapi_write_log_file (VAPI_COMMAND_SEND, id, data);
  vapi_write_log_file (VAPI_COMMAND_SEND, id, data);
  write_packet (id, data);
  write_packet (id, data);
}
}
 
 
/*
/*
int main ()
int main ()
{
{
  runtime.vapi.enabled = 1;
  runtime.vapi.enabled = 1;
  config.vapi.server_port = 9999;
  config.vapi.server_port = 9999;
  vapi_init ();
  vapi_init ();
  while (1) {
  while (1) {
    vapi_check();
    vapi_check();
    usleep(1);
    usleep(1);
  }
  }
  vapi_done ();
  vapi_done ();
}*/
}*/
 
 
/*---------------------------------------------------[ VAPI configuration ]---*/
/*---------------------------------------------------[ VAPI configuration ]---*/
void vapi_enabled(union param_val val, void *dat)
void vapi_enabled(union param_val val, void *dat)
{
{
  config.vapi.enabled = val.int_val;
  config.vapi.enabled = val.int_val;
}
}
 
 
void vapi_server_port(union param_val val, void *dat)
void vapi_server_port(union param_val val, void *dat)
{
{
  config.vapi.server_port = val.int_val;
  config.vapi.server_port = val.int_val;
}
}
 
 
void vapi_log_enabled(union param_val val, void *dat)
void vapi_log_enabled(union param_val val, void *dat)
{
{
  config.vapi.log_enabled = val.int_val;
  config.vapi.log_enabled = val.int_val;
}
}
 
 
void vapi_hide_device_id(union param_val val, void *dat)
void vapi_hide_device_id(union param_val val, void *dat)
{
{
  config.vapi.hide_device_id = val.int_val;
  config.vapi.hide_device_id = val.int_val;
}
}
 
 
void vapi_log_fn(union param_val val, void *dat)
void vapi_log_fn(union param_val val, void *dat)
{
{
  strcpy(config.vapi.vapi_fn, val.str_val);
  strcpy(config.vapi.vapi_fn, val.str_val);
}
}
 
 
void reg_vapi_sec(void)
void reg_vapi_sec(void)
{
{
  struct config_section *sec = reg_config_sec("VAPI", NULL, NULL);
  struct config_section *sec = reg_config_sec("VAPI", NULL, NULL);
 
 
  reg_config_param(sec, "enabled", paramt_int, vapi_enabled);
  reg_config_param(sec, "enabled", paramt_int, vapi_enabled);
  reg_config_param(sec, "server_port", paramt_int, vapi_server_port);
  reg_config_param(sec, "server_port", paramt_int, vapi_server_port);
  reg_config_param(sec, "log_enabled", paramt_int, vapi_log_enabled);
  reg_config_param(sec, "log_enabled", paramt_int, vapi_log_enabled);
  reg_config_param(sec, "hide_device_id", paramt_int, vapi_hide_device_id);
  reg_config_param(sec, "hide_device_id", paramt_int, vapi_hide_device_id);
  reg_config_param(sec, "vapi_log_fn", paramt_str, vapi_log_fn);
  reg_config_param(sec, "vapi_log_fn", paramt_str, vapi_log_fn);
}
}
 
 

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