diff options
Diffstat (limited to 'lib/buffer.h')
| -rw-r--r-- | lib/buffer.h | 17 |
1 files changed, 14 insertions, 3 deletions
diff --git a/lib/buffer.h b/lib/buffer.h index 6c3dc76a..132fe155 100644 --- a/lib/buffer.h +++ b/lib/buffer.h @@ -1,5 +1,5 @@ /* - * Buffering to output and input. + * Buffering to output and input. * Copyright (C) 1998 Kunihiro Ishiguro * * This file is part of GNU Zebra. @@ -23,11 +23,22 @@ #ifndef _ZEBRA_BUFFER_H #define _ZEBRA_BUFFER_H +/* Buffer master. */ +struct buffer +{ + /* Data list. */ + struct buffer_data *head; + struct buffer_data *tail; + + /* Size of each buffer_data chunk. */ + size_t size; +}; /* Create a new buffer. Memory will be allocated in chunks of the given size. If the argument is 0, the library will supply a reasonable default size suitable for buffering socket I/O. */ extern struct buffer *buffer_new (size_t); +struct buffer *buffer_init_new (struct buffer* b, size_t size) ; /* Free all data in the buffer. */ extern void buffer_reset (struct buffer *); @@ -73,7 +84,7 @@ typedef enum extern buffer_status_t buffer_write(struct buffer *, int fd, const void *, size_t); -/* This function attempts to flush some (but perhaps not all) of +/* This function attempts to flush some (but perhaps not all) of the queued data to the given file descriptor. */ extern buffer_status_t buffer_flush_available(struct buffer *, int fd); @@ -88,7 +99,7 @@ extern buffer_status_t buffer_flush_all (struct buffer *, int fd); /* Attempt to write enough data to the given fd to fill a window of the given width and height (and remove the data written from the buffer). - If !no_more, then a message saying " --More-- " is appended. + If !no_more, then a message saying " --More-- " is appended. If erase is true, then first overwrite the previous " --More-- " message with spaces. |