Version 1.8 of gecko-sdk. Downloaded from here:...

gecko-sdk/include/md/_nextstep.h

+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* ***** BEGIN LICENSE BLOCK *****
+ * Version: MPL 1.1/GPL 2.0/LGPL 2.1
+ *
+ * The contents of this file are subject to the Mozilla Public License Version
+ * 1.1 (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * Software distributed under the License is distributed on an "AS IS" basis,
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
+ * for the specific language governing rights and limitations under the
+ * License.
+ *
+ * The Original Code is the Netscape Portable Runtime (NSPR).
+ *
+ * The Initial Developer of the Original Code is
+ * Netscape Communications Corporation.
+ * Portions created by the Initial Developer are Copyright (C) 1998-2000
+ * the Initial Developer. All Rights Reserved.
+ *
+ * Contributor(s):
+ *
+ * Alternatively, the contents of this file may be used under the terms of
+ * either the GNU General Public License Version 2 or later (the "GPL"), or
+ * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
+ * in which case the provisions of the GPL or the LGPL are applicable instead
+ * of those above. If you wish to allow use of your version of this file only
+ * under the terms of either the GPL or the LGPL, and not to allow others to
+ * use your version of this file under the terms of the MPL, indicate your
+ * decision by deleting the provisions above and replace them with the notice
+ * and other provisions required by the GPL or the LGPL. If you do not delete
+ * the provisions above, a recipient may use your version of this file under
+ * the terms of any one of the MPL, the GPL or the LGPL.
+ *
+ * ***** END LICENSE BLOCK ***** */
+
+#ifndef nspr_nextstep_defs_h___
+#define nspr_nextstep_defs_h___
+
+#include "prthread.h"
+
+#include <bsd/libc.h>
+#include <bsd/syscall.h>
+
+/*      syscall() is not declared in NEXTSTEP's syscall.h ...
+*/
+extern int syscall(int number, ...);
+
+/*
+ * Internal configuration macros
+ */
+
+#define PR_LINKER_ARCH  "nextstep"
+#define _PR_SI_SYSNAME  "NEXTSTEP"
+#if defined(__sparc__)
+#define _PR_SI_ARCHITECTURE "sparc"
+#elif defined(__m68k__)
+#define _PR_SI_ARCHITECTURE "m68k"
+#elif defined(__i386__)
+#define _PR_SI_ARCHITECTURE "x86"
+#else
+error Unknown NEXTSTEP architecture
+#endif
+#define PR_DLL_SUFFIX           ".so"
+
+#define _PR_VMBASE              0x30000000
+#define _PR_STACK_VMBASE        0x50000000
+#define _MD_DEFAULT_STACK_SIZE  65536L
+#define _MD_MMAP_FLAGS          MAP_PRIVATE
+
+#undef  HAVE_STACK_GROWING_UP
+
+#define HAVE_WEAK_MALLOC_SYMBOLS
+
+#define HAVE_DLL
+#define USE_MACH_DYLD
+#define _PR_STAT_HAS_ONLY_ST_ATIME
+#define _PR_NO_LARGE_FILES
+
+#define USE_SETJMP
+
+#ifndef _PR_PTHREADS
+
+#include <setjmp.h>
+
+#define PR_CONTEXT_TYPE jmp_buf
+
+#define CONTEXT(_th) ((_th)->md.context)
+
+/* balazs.pataki@sztaki.hu:
+** __sparc__ is checked
+** __m68k__ is checked
+** __i386__ is a guess (one of the two defines should work)
+*/
+#if defined(__sparc__)
+#define _MD_GET_SP(_th)         (_th)->md.context[2]
+#elif defined(__m68k__)
+#define _MD_GET_SP(_th)         (_th)->md.context[2]
+#elif defined(__i386__)
+/* One of this two must be OK ... try using sc_onstack
+*/
+#define _MD_GET_SP(_th)    (((struct sigcontext *) (_th)->md.context)->sc_onstack)
+//#define _MD_GET_SP(_th)               (_th)->md.context[0].sc_esp
+#else
+error Unknown NEXTSTEP architecture
+#endif
+
+#define PR_NUM_GCREGS   _JBLEN
+
+/*
+** Initialize a thread context to run "_main()" when started
+*/
+#define _MD_INIT_CONTEXT(_thread, _sp, _main, status)  \
+{  \
+    *status = PR_TRUE;  \
+    if (setjmp(CONTEXT(_thread))) {  \
+        _main();  \
+    }  \
+    _MD_GET_SP(_thread) = (int) ((_sp) - 64); \
+}
+
+#define _MD_SWITCH_CONTEXT(_thread)  \
+    if (!setjmp(CONTEXT(_thread))) {  \
+        (_thread)->md.errcode = errno;  \
+        _PR_Schedule();  \
+    }
+
+/*
+** Restore a thread context, saved by _MD_SWITCH_CONTEXT
+*/
+#define _MD_RESTORE_CONTEXT(_thread) \
+{   \
+    errno = (_thread)->md.errcode;  \
+    _MD_SET_CURRENT_THREAD(_thread);  \
+    longjmp(CONTEXT(_thread), 1);  \
+}
+
+/* Machine-dependent (MD) data structures */
+
+struct _MDThread {
+    PR_CONTEXT_TYPE context;
+    int id;
+    int errcode;
+};
+
+struct _MDThreadStack {
+    PRInt8 notused;
+};
+
+struct _MDLock {
+    PRInt8 notused;
+};
+
+struct _MDSemaphore {
+    PRInt8 notused;
+};
+
+struct _MDCVar {
+    PRInt8 notused;
+};
+
+struct _MDSegment {
+    PRInt8 notused;
+};
+
+/*
+ * md-specific cpu structure field
+ */
+#define _PR_MD_MAX_OSFD FD_SETSIZE
+
+struct _MDCPU_Unix {
+    PRCList ioQ;
+    PRUint32 ioq_timeout;
+    PRInt32 ioq_max_osfd;
+    PRInt32 ioq_osfd_cnt;
+#ifndef _PR_USE_POLL
+    fd_set fd_read_set, fd_write_set, fd_exception_set;
+    PRInt16 fd_read_cnt[_PR_MD_MAX_OSFD],fd_write_cnt[_PR_MD_MAX_OSFD],
+                                fd_exception_cnt[_PR_MD_MAX_OSFD];
+#else
+        struct pollfd *ioq_pollfds;
+        int ioq_pollfds_size;
+#endif  /* _PR_USE_POLL */
+};
+
+#define _PR_IOQ(_cpu)                   ((_cpu)->md.md_unix.ioQ)
+#define _PR_ADD_TO_IOQ(_pq, _cpu) PR_APPEND_LINK(&_pq.links, &_PR_IOQ(_cpu))
+#define _PR_FD_READ_SET(_cpu)           ((_cpu)->md.md_unix.fd_read_set)
+#define _PR_FD_READ_CNT(_cpu)           ((_cpu)->md.md_unix.fd_read_cnt)
+#define _PR_FD_WRITE_SET(_cpu)          ((_cpu)->md.md_unix.fd_write_set)
+#define _PR_FD_WRITE_CNT(_cpu)          ((_cpu)->md.md_unix.fd_write_cnt)
+#define _PR_FD_EXCEPTION_SET(_cpu)      ((_cpu)->md.md_unix.fd_exception_set)
+#define _PR_FD_EXCEPTION_CNT(_cpu)      ((_cpu)->md.md_unix.fd_exception_cnt)
+#define _PR_IOQ_TIMEOUT(_cpu)           ((_cpu)->md.md_unix.ioq_timeout)
+#define _PR_IOQ_MAX_OSFD(_cpu)          ((_cpu)->md.md_unix.ioq_max_osfd)
+#define _PR_IOQ_OSFD_CNT(_cpu)          ((_cpu)->md.md_unix.ioq_osfd_cnt)
+#define _PR_IOQ_POLLFDS(_cpu)           ((_cpu)->md.md_unix.ioq_pollfds)
+#define _PR_IOQ_POLLFDS_SIZE(_cpu)      ((_cpu)->md.md_unix.ioq_pollfds_size)
+
+#define _PR_IOQ_MIN_POLLFDS_SIZE(_cpu)  32
+
+struct _MDCPU {
+        struct _MDCPU_Unix md_unix;
+};
+
+#define _MD_INIT_LOCKS()
+#define _MD_NEW_LOCK(lock) PR_SUCCESS
+#define _MD_FREE_LOCK(lock)
+#define _MD_LOCK(lock)
+#define _MD_UNLOCK(lock)
+#define _MD_INIT_IO()
+#define _MD_IOQ_LOCK()
+#define _MD_IOQ_UNLOCK()
+
+extern PRStatus _MD_InitializeThread(PRThread *thread);
+
+#define _MD_INIT_RUNNING_CPU(cpu)       _MD_unix_init_running_cpu(cpu)
+#define _MD_INIT_THREAD                 _MD_InitializeThread
+#define _MD_EXIT_THREAD(thread)
+#define _MD_SUSPEND_THREAD(thread)      _MD_suspend_thread
+#define _MD_RESUME_THREAD(thread)       _MD_resume_thread
+#define _MD_CLEAN_THREAD(_thread)
+
+extern PRStatus _MD_CREATE_THREAD(
+    PRThread *thread,
+    void (*start) (void *),
+    PRThreadPriority priority,
+    PRThreadScope scope,
+    PRThreadState state,
+    PRUint32 stackSize);
+extern void _MD_SET_PRIORITY(struct _MDThread *thread, PRUintn newPri);
+extern PRStatus _MD_WAIT(PRThread *, PRIntervalTime timeout);
+extern PRStatus _MD_WAKEUP_WAITER(PRThread *);
+extern void _MD_YIELD(void);
+
+#endif /* ! _PR_PTHREADS */
+
+extern void _MD_EarlyInit(void);
+extern PRIntervalTime _PR_UNIX_GetInterval(void);
+extern PRIntervalTime _PR_UNIX_TicksPerSecond(void);
+
+#define _MD_EARLY_INIT                  _MD_EarlyInit
+#define _MD_FINAL_INIT                  _PR_UnixInit
+#define _MD_GET_INTERVAL                  _PR_UNIX_GetInterval
+#define _MD_INTERVAL_PER_SEC              _PR_UNIX_TicksPerSecond
+
+/*
+ * We wrapped the select() call.  _MD_SELECT refers to the built-in,
+ * unwrapped version.
+ */
+#define _MD_SELECT(nfds,r,w,e,tv) syscall(SYS_select,nfds,r,w,e,tv)
+
+/* For writev() */
+#include <sys/uio.h>
+
+/* signal.h */
+/*      balazs.pataki@sztaki.hu: this is stolen from sunos4.h. The things is that
+**      NEXTSTEP doesn't support these flags for `struct sigaction's sa_flags, so
+**      I have to fake them ...
+*/
+#define SA_RESTART 0
+
+/* mmap */
+/*      balazs.pataki@sztaki.hu: NEXTSTEP doesn't have mmap, at least not 
+**      publically. We have sys/mman.h, but it doesn't declare mmap(), and
+**      PROT_NONE is also missing. syscall.h has entries for mmap, munmap, and 
+**      mprotect so I wrap these in nextstep.c as  mmap(), munmap() and mprotect()
+**      and pray for it to work.
+**      
+*/
+caddr_t mmap(caddr_t addr, size_t len, int prot, int flags,
+          int fildes, off_t off);
+int munmap(caddr_t addr, size_t len);
+int mprotect(caddr_t addr, size_t len, int prot);
+
+/*      my_mmap() is implemented in nextstep.c and is based on map_fd() of mach.
+*/
+caddr_t my_mmap(caddr_t addr, size_t len, int prot, int flags,
+          int fildes, off_t off);
+int my_munmap(caddr_t addr, size_t len);
+
+
+/*      string.h
+*/
+/* balazs.pataki@sztaki.hu: this is missing so implemenetd in nextstep.c ...
+*/
+char *strdup(const char *s1);
+
+/* unistd.h
+*/
+/*      balazs.pataki@sztaki.hu: these functions are hidden, though correctly 
+**      implemented in NEXTSTEP. Here I give the declaration for them to be used
+**      by prmalloc.c, and I have a wrapped syscall() version of them in nextstep.c
+*/
+int brk(void *endds);
+void *sbrk(int incr);
+
+#endif /* nspr_nextstep_defs_h___ */