diff options
Diffstat (limited to 'gc/pcr_interface.c')
| -rw-r--r-- | gc/pcr_interface.c | 178 |
1 files changed, 0 insertions, 178 deletions
diff --git a/gc/pcr_interface.c b/gc/pcr_interface.c deleted file mode 100644 index 7bf02a4..0000000 --- a/gc/pcr_interface.c +++ /dev/null @@ -1,178 +0,0 @@ -/* - * Copyright (c) 1991-1994 by Xerox Corporation. All rights reserved. - * - * THIS MATERIAL IS PROVIDED AS IS, WITH ABSOLUTELY NO WARRANTY EXPRESSED - * OR IMPLIED. ANY USE IS AT YOUR OWN RISK. - * - * Permission is hereby granted to use or copy this program - * for any purpose, provided the above notices are retained on all copies. - * Permission to modify the code and to distribute modified code is granted, - * provided the above notices are retained, and a notice that the code was - * modified is included with the above copyright notice. - */ -# include "private/gc_priv.h" - -# ifdef PCR -/* - * Note that POSIX PCR requires an ANSI C compiler. Hence we are allowed - * to make the same assumption here. - * We wrap all of the allocator functions to avoid questions of - * compatibility between the prototyped and nonprototyped versions of the f - */ -# include "config/PCR_StdTypes.h" -# include "mm/PCR_MM.h" -# include <errno.h> - -# define MY_MAGIC 17L -# define MY_DEBUGMAGIC 42L - -void * GC_AllocProc(size_t size, PCR_Bool ptrFree, PCR_Bool clear ) -{ - if (ptrFree) { - void * result = (void *)GC_malloc_atomic(size); - if (clear && result != 0) BZERO(result, size); - return(result); - } else { - return((void *)GC_malloc(size)); - } -} - -void * GC_DebugAllocProc(size_t size, PCR_Bool ptrFree, PCR_Bool clear ) -{ - if (ptrFree) { - void * result = (void *)GC_debug_malloc_atomic(size, __FILE__, - __LINE__); - if (clear && result != 0) BZERO(result, size); - return(result); - } else { - return((void *)GC_debug_malloc(size, __FILE__, __LINE__)); - } -} - -# define GC_ReallocProc GC_realloc -void * GC_DebugReallocProc(void * old_object, size_t new_size_in_bytes) -{ - return(GC_debug_realloc(old_object, new_size_in_bytes, __FILE__, __LINE__)); -} - -# define GC_FreeProc GC_free -# define GC_DebugFreeProc GC_debug_free - -typedef struct { - PCR_ERes (*ed_proc)(void *p, size_t size, PCR_Any data); - GC_bool ed_pointerfree; - PCR_ERes ed_fail_code; - PCR_Any ed_client_data; -} enumerate_data; - -void GC_enumerate_block(h, ed) -register struct hblk *h; -enumerate_data * ed; -{ - register hdr * hhdr; - register int sz; - word *p; - word * lim; - - hhdr = HDR(h); - sz = hhdr -> hb_sz; - if (sz >= 0 && ed -> ed_pointerfree - || sz <= 0 && !(ed -> ed_pointerfree)) return; - if (sz < 0) sz = -sz; - lim = (word *)(h+1) - sz; - p = (word *)h; - do { - if (PCR_ERes_IsErr(ed -> ed_fail_code)) return; - ed -> ed_fail_code = - (*(ed -> ed_proc))(p, WORDS_TO_BYTES(sz), ed -> ed_client_data); - p+= sz; - } while (p <= lim); -} - -struct PCR_MM_ProcsRep * GC_old_allocator = 0; - -PCR_ERes GC_EnumerateProc( - PCR_Bool ptrFree, - PCR_ERes (*proc)(void *p, size_t size, PCR_Any data), - PCR_Any data -) -{ - enumerate_data ed; - - ed.ed_proc = proc; - ed.ed_pointerfree = ptrFree; - ed.ed_fail_code = PCR_ERes_okay; - ed.ed_client_data = data; - GC_apply_to_all_blocks(GC_enumerate_block, &ed); - if (ed.ed_fail_code != PCR_ERes_okay) { - return(ed.ed_fail_code); - } else { - /* Also enumerate objects allocated by my predecessors */ - return((*(GC_old_allocator->mmp_enumerate))(ptrFree, proc, data)); - } -} - -void GC_DummyFreeProc(void *p) {} - -void GC_DummyShutdownProc(void) {} - -struct PCR_MM_ProcsRep GC_Rep = { - MY_MAGIC, - GC_AllocProc, - GC_ReallocProc, - GC_DummyFreeProc, /* mmp_free */ - GC_FreeProc, /* mmp_unsafeFree */ - GC_EnumerateProc, - GC_DummyShutdownProc /* mmp_shutdown */ -}; - -struct PCR_MM_ProcsRep GC_DebugRep = { - MY_DEBUGMAGIC, - GC_DebugAllocProc, - GC_DebugReallocProc, - GC_DummyFreeProc, /* mmp_free */ - GC_DebugFreeProc, /* mmp_unsafeFree */ - GC_EnumerateProc, - GC_DummyShutdownProc /* mmp_shutdown */ -}; - -GC_bool GC_use_debug = 0; - -void GC_pcr_install() -{ - PCR_MM_Install((GC_use_debug? &GC_DebugRep : &GC_Rep), &GC_old_allocator); -} - -PCR_ERes -PCR_GC_Setup(void) -{ - return PCR_ERes_okay; -} - -PCR_ERes -PCR_GC_Run(void) -{ - - if( !PCR_Base_TestPCRArg("-nogc") ) { - GC_quiet = ( PCR_Base_TestPCRArg("-gctrace") ? 0 : 1 ); - GC_use_debug = (GC_bool)PCR_Base_TestPCRArg("-debug_alloc"); - GC_init(); - if( !PCR_Base_TestPCRArg("-nogc_incremental") ) { - /* - * awful hack to test whether VD is implemented ... - */ - if( PCR_VD_Start( 0, NIL, 0) != PCR_ERes_FromErr(ENOSYS) ) { - GC_enable_incremental(); - } - } - } - return PCR_ERes_okay; -} - -void GC_push_thread_structures(void) -{ - /* PCR doesn't work unless static roots are pushed. Can't get here. */ - ABORT("In GC_push_thread_structures()"); -} - -# endif |