cpukit/libdebugger/rtems-debugger-remote.c

0001 /*
0002  * Copyright (c) 2016 Chris Johns <chrisj@rtems.org>.
0003  * All rights reserved.
0004  *
0005  * Redistribution and use in source and binary forms, with or without
0006  * modification, are permitted provided that the following conditions
0007  * are met:
0008  * 1. Redistributions of source code must retain the above copyright
0009  *    notice, this list of conditions and the following disclaimer.
0010  * 2. Redistributions in binary form must reproduce the above copyright
0011  *    notice, this list of conditions and the following disclaimer in the
0012  *    documentation and/or other materials provided with the distribution.
0013  *
0014  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
0015  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
0016  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
0017  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
0018  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
0019  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
0020  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
0021  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
0022  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
0023  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
0024  * SUCH DAMAGE.
0025  */
0026
0027 #include <errno.h>
0028 #include <stdlib.h>
0029 #include <unistd.h>
0030
0031 #include <rtems/rtems-debugger.h>
0032 #include <rtems/debugger/rtems-debugger-server.h>
0033 #include <rtems/debugger/rtems-debugger-remote.h>
0034
0035 static rtems_debugger_remote* remotes[4];
0036
0037 int
0038 rtems_debugger_remote_register(rtems_debugger_remote* remote)
0039 {
0040   size_t r;
0041   if (remote->begin == NULL || remote->end == NULL ||
0042       remote->connect == NULL || remote->disconnect == NULL ||
0043       remote->isconnected == NULL ||
0044       remote->read == NULL || remote->write == NULL) {
0045     errno = EINVAL;
0046     return -1;
0047   }
0048   for (r = 0; r < RTEMS_DEBUGGER_NUMOF(remotes); ++r) {
0049     if (remotes[r] == NULL) {
0050       remotes[r] = remote;
0051       return 0;
0052     }
0053   }
0054   errno = ENOSPC;
0055   return -1;
0056 }
0057
0058 rtems_debugger_remote*
0059 rtems_debugger_remote_find(const char* name)
0060 {
0061   size_t r;
0062   for (r = 0; r < RTEMS_DEBUGGER_NUMOF(remotes); ++r) {
0063     if (remotes[r] != NULL) {
0064       if (strcasecmp(name, remotes[r]->name) == 0)
0065         return remotes[r];
0066     }
0067   }
0068   return NULL;
0069 }