workbench/network/stacks/AROSTCP/bsdsocket/api/amiga_libcallentry.h

   1 /*
   2  * Copyright (C) 1993 AmiTCP/IP Group, <amitcp-group@hut.fi>
   3  *                    Helsinki University of Technology, Finland.
   4  *                    All rights reserved.
   5  * Copyright (C) 2005 Neil Cafferkey
   6  *
   7  * This program is free software; you can redistribute it and/or modify
   8  * it under the terms of the GNU General Public License version 2 as
   9  * published by the Free Software Foundation.
  10  *
  11  * This program is distributed in the hope that it will be useful, but
  12  * WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  14  * General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program; if not, write to the Free Software
  18  * Foundation, Inc., 59 Temple Place - Suite 330, Boston,
  19  * MA 02111-1307, USA.
  20  *
  21  */
  22
  23 #ifndef AMIGA_LIBCALLENTRY_H
  24 #define AMIGA_LIBCALLENTRY_H
  25
  26 #ifndef AMIGA_API_H
  27 #error include amiga_api.h before this (libcallentry.h)
  28 #endif
  29
  30 #ifndef SYS_CDEFS_H
  31 #include <sys/cdefs.h>
  32 #endif
  33
  34 #ifndef SYS_ERRNO_H
  35 #include <sys/errno.h>
  36 #endif
  37
  38 #ifndef SYS_SYSLOG_H
  39 #include <sys/syslog.h>
  40 #endif
  41
  42 /*
  43  * The following macros are written in each socket library functions
  44  * (execpt Errno()). they makes sure that the task that calls library
  45  * functions is the opener task of the socketbase it is using.
  46  */
  47
  48 extern const char wrongTaskErrorFmt[];
  49
  50 #define CHECK_TASK()                                    \
  51   if (libPtr->thisTask != FindTask(NULL)) {             \
  52     struct Task * wTask = FindTask(NULL);               \
  53     __log(LOG_CRIT, wrongTaskErrorFmt, wTask,           \
  54         wTask->tc_Node.ln_Name, libPtr->thisTask,       \
  55         libPtr->thisTask->tc_Node.ln_Name);             \
  56     return -1;                                          \
  57   }
  58
  59 #define CHECK_TASK_NULL()                               \
  60   if (libPtr->thisTask != FindTask(NULL)) {             \
  61     struct Task * wTask = FindTask(NULL);               \
  62     __log(LOG_CRIT, wrongTaskErrorFmt, wTask,           \
  63         wTask->tc_Node.ln_Name, libPtr->thisTask,       \
  64         libPtr->thisTask->tc_Node.ln_Name);             \
  65     return NULL;                                        \
  66   }
  67
  68 #define CHECK_TASK2() CHECK_TASK_NULL()
  69
  70 #define CHECK_TASK_VOID()                               \
  71   if (libPtr->thisTask != FindTask(NULL)) {             \
  72     struct Task * wTask = FindTask(NULL);               \
  73     __log(LOG_CRIT, wrongTaskErrorFmt, wTask,           \
  74         wTask->tc_Node.ln_Name, libPtr->thisTask,       \
  75         libPtr->thisTask->tc_Node.ln_Name);             \
  76     return;                                             \
  77   }
  78
  79 #define API_STD_RETURN(error, ret)      \
  80   if (error == 0)                       \
  81     return ret;                         \
  82   writeErrnoValue(libPtr, error);       \
  83   return -1;
  84
  85 /*
  86  * getSock() gets a socket referenced by given filedescriptor if exists,
  87  * returns EBADF (bad file descriptor) if not. (because this now uses
  88  * struct socket * pointer and those are often register variables, perhaps
  89  * some kind of change is to be done here).
  90  */
  91
  92 static inline LONG getSock(struct SocketBase *p, int fd, struct socket **sop)
  93 {
  94   register struct socket *so;
  95
  96   if ((unsigned)fd >= p->dTableSize || (so = p->dTable[(short)fd]) == NULL)
  97     return (EBADF);
  98   *sop = so;
  99   return 0;
 100 }
 101
 102 /*
 103  * Prototype for sdFind. This is located in amiga_syscalls.c and replaces
 104  * fdAlloc there. libPtr->nextDToSearch is dumped.
 105  */
 106 LONG sdFind(struct SocketBase * libPtr, LONG *fdp);
 107
 108 #ifndef AMIGA_RAF_H
 109 #include <api/amiga_raf.h>
 110 #endif
 111
 112 #endif /* !AMIGA_LIBCALLENTRY_H */