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| -rw-r--r-- | winsup/cygwin/ChangeLog | 1 | ||||
| -rw-r--r-- | winsup/cygwin/perthread.h | 37 |
2 files changed, 38 insertions, 0 deletions
diff --git a/winsup/cygwin/ChangeLog b/winsup/cygwin/ChangeLog index 4725a014b..1542180a2 100644 --- a/winsup/cygwin/ChangeLog +++ b/winsup/cygwin/ChangeLog @@ -30,6 +30,7 @@ Fri Jun 30 23:21:40 2000 Christopher Faylor <cgf@cygnus.com> * include/cygwin/version.h: Bump API minor version. * binmode.c: New file. * textmode.c: Ditto. + * perthread.h: Ditto. * lib/_cygwin_crt0_common.cc: Ditto. * lib/crt0.h: Ditto. * lib/cygwin_attach_dll.c: Ditto. diff --git a/winsup/cygwin/perthread.h b/winsup/cygwin/perthread.h new file mode 100644 index 000000000..fa6e1dfcb --- /dev/null +++ b/winsup/cygwin/perthread.h @@ -0,0 +1,37 @@ +/* perthread.h: Header file for cygwin synchronization primitives. + + Copyright 2000 Cygnus Solutions. + + Written by Christopher Faylor <cgf@cygnus.com> + +This file is part of Cygwin. + +This software is a copyrighted work licensed under the terms of the +Cygwin license. Please consult the file "CYGWIN_LICENSE" for +details. */ + +#define PTMAGIC 0x77366377 + +struct _reent; +extern struct _reent reent_data; + +extern DWORD *__stackbase __asm__ ("%fs:4"); + +extern __inline struct _reent * +get_reent () +{ + DWORD *base = __stackbase - 1; + + if (*base != PTMAGIC) + return &reent_data; + return (struct _reent *) base[-1]; +} + +extern inline void +set_reent (struct _reent *r) +{ + DWORD *base = __stackbase - 1; + + *base = PTMAGIC; + base[-1] = (DWORD) r; +} |