diff options
Diffstat (limited to 'stdio/stdio.h')
| -rw-r--r-- | stdio/stdio.h | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/stdio/stdio.h b/stdio/stdio.h index bf4f7b818c..705fd832d0 100644 --- a/stdio/stdio.h +++ b/stdio/stdio.h @@ -169,6 +169,10 @@ extern void __libc_fatal __P ((__const char *__message)) __attribute__ ((__noreturn__)); +/* For thread safe I/O functions we need a lock in each stream. We + keep the type opaque here. */ +struct __stdio_lock; + /* The FILE structure. */ struct __stdio_file { @@ -176,8 +180,8 @@ struct __stdio_file for the glue to Unix stdio getc/putc to work. NOTE: stdio/glue.c has special knowledge of these first four members. */ int __magic; -#define _IOMAGIC 0xfedabeeb /* Magic number to fill `__magic'. */ -#define _GLUEMAGIC 0xfeedbabe /* Magic for glued Unix streams. */ +#define _IOMAGIC ((int) 0xfedabeeb) /* Magic number to fill `__magic'. */ +#define _GLUEMAGIC ((int) 0xfeedbabe) /* Magic for glued Unix streams. */ char *__bufp; /* Pointer into the buffer. */ char *__get_limit; /* Reading limit. */ @@ -202,6 +206,7 @@ struct __stdio_file unsigned int __linebuf_active:1; /* put_limit is not really in use. */ unsigned int __seen:1; /* This stream has been seen. */ unsigned int __ispipe:1; /* Nonzero if opened by popen. */ + struct __stdio_lock *__lock; /* Pointer to associated lock. */ }; |