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Update.

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2000-06-04  Kaz Kylheku  <kaz@ashi.footprints.net>

	Lock for stdio stream list becomes global, for use in LinuxThreads.

	* libio/genops.c (_IO_iter_begin, _IO_iter_end,
	_IO_iter_next, _IO_iter_file, _IO_list_lock, _IO_list_unlock,
	_IO_list_resetlock): New interface for iterating global list of
	streams without accessing the _IO_list_all global variable,
	and for manipulating the lock which protects this list.
	* libio/libioP.h: Likewise.
	* libio/Version: Add entries for the new functions.

	* libio/libioP.h (_IO_ITER): New typedef, just an alias for
	pointer to _IO_FILE.
This commit is contained in:
Ulrich Drepper
2000-06-07 22:50:32 +00:00
parent ce177a8416
commit 3fc9ca4e38
4 changed files with 78 additions and 0 deletions
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15
libio/libioP.h
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@@ -313,6 +313,10 @@ struct _IO_FILE_plus
const struct _IO_jump_t *vtable;
};
/* Iterator type for walking global linked list of _IO_FILE objects. */
typedef _IO_FILE *_IO_ITER;
/* Generic functions */
extern void _IO_switch_to_main_get_area __P ((_IO_FILE *));
@@ -351,6 +355,17 @@ extern int _IO_wmarker_delta __P ((struct _IO_marker *));
extern int _IO_seekmark __P ((_IO_FILE *, struct _IO_marker *, int));
extern int _IO_seekwmark __P ((_IO_FILE *, struct _IO_marker *, int));
/* Functions for iterating global list and dealing with
its lock */
extern _IO_ITER _IO_iter_begin __P ((void));
extern _IO_ITER _IO_iter_end __P ((void));
extern _IO_ITER _IO_iter_next __P ((_IO_ITER));
extern _IO_FILE *_IO_iter_file __P ((_IO_ITER));
extern void _IO_list_lock __P ((void));
extern void _IO_list_unlock __P ((void));
extern void _IO_list_resetlock __P ((void));
/* Default jumptable functions. */
extern int _IO_default_underflow __P ((_IO_FILE *));