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Enhance comment about obstack_alloc_failed_handler usage.

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This commit is contained in:
Ulrich Drepper 1998-10-07 10:47:39 +00:00
parent b42f335b71
commit ced2caa5e3
2 changed files with 9 additions and 7 deletions
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9
malloc/obstack.c
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@ -78,7 +78,9 @@ union fooround {long x; double d;};
/* The functions allocating more room by calling `obstack_chunk_alloc'
jump to the handler pointed to by `obstack_alloc_failed_handler'.
This variable by default points to the internal function
This can be set to a user defined function which should either
abort gracefully or use longjump - but shouldn't return. This
variable by default points to the internal function
`print_and_abort'. */
#if defined (__STDC__) && __STDC__
static void print_and_abort (void);
@ -142,9 +144,8 @@ struct obstack *_obstack;
CHUNKFUN is the function to use to allocate chunks,
and FREEFUN the function to free them.
Return nonzero if successful, zero if out of memory.
To recover from an out of memory error,
free up some memory, then call this again. */
Return nonzero if successful, calls obstack_alloc_failed_handler if
allocation fails. */
int
_obstack_begin (h, size, alignment, chunkfun, freefun)

7
malloc/obstack.h
View File

@ -1,5 +1,5 @@
/* obstack.h - object stack macros
Copyright (C) 1988,89,90,91,92,93,94,96,97 Free Software Foundation, Inc.
Copyright (C) 1988,89,90,91,92,93,94,96,97,98 Free Software Foundation, Inc.
This file is part of the GNU C Library. Its master source is NOT part of
the C library, however. The master source lives in /gd/gnu/lib.
@ -260,8 +260,9 @@ int obstack_memory_used (struct obstack *obstack);
so we do not declare them. */
/* Error handler called when `obstack_chunk_alloc' failed to allocate
more memory. This can be set to a user defined function. The
default action is to print a message and abort. */
more memory. This can be set to a user defined function which
should either abort gracefully or use longjump - but shouldn't
return. The default action is to print a message and abort. */
#if defined (__STDC__) && __STDC__
extern void (*obstack_alloc_failed_handler) (void);
#else