diff options
Diffstat (limited to 'libc/kernel/common/linux/circ_buf.h')
-rw-r--r-- | libc/kernel/common/linux/circ_buf.h | 29 |
1 files changed, 0 insertions, 29 deletions
diff --git a/libc/kernel/common/linux/circ_buf.h b/libc/kernel/common/linux/circ_buf.h deleted file mode 100644 index 438250c..0000000 --- a/libc/kernel/common/linux/circ_buf.h +++ /dev/null @@ -1,29 +0,0 @@ -/**************************************************************************** - **************************************************************************** - *** - *** This header was automatically generated from a Linux kernel header - *** of the same name, to make information necessary for userspace to - *** call into the kernel available to libc. It contains only constants, - *** structures, and macros generated from the original header, and thus, - *** contains no copyrightable information. - *** - **************************************************************************** - ****************************************************************************/ -#ifndef _LINUX_CIRC_BUF_H -#define _LINUX_CIRC_BUF_H 1 - -struct circ_buf { - char *buf; - int head; - int tail; -}; - -#define CIRC_CNT(head,tail,size) (((head) - (tail)) & ((size)-1)) - -#define CIRC_SPACE(head,tail,size) CIRC_CNT((tail),((head)+1),(size)) - -#define CIRC_CNT_TO_END(head,tail,size) ({int end = (size) - (tail); int n = ((head) + end) & ((size)-1); n < end ? n : end;}) - -#define CIRC_SPACE_TO_END(head,tail,size) ({int end = (size) - 1 - (head); int n = (end + (tail)) & ((size)-1); n <= end ? n : end+1;}) - -#endif |