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Diffstat (limited to 'lineread.h')
| -rw-r--r-- | lineread.h | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/lineread.h b/lineread.h new file mode 100644 index 0000000..b6faff5 --- /dev/null +++ b/lineread.h @@ -0,0 +1,31 @@ +/* SPDX-License-Identifier: AGPL-3.0-or-later + * Copyright Red Hat + * Author: David Gibson <david@gibson.dropbear.id.au> + */ + +#ifndef LINEREAD_H +#define LINEREAD_H + +#define LINEREAD_BUFFER_SIZE 8192 + +/** + * struct lineread - Line reader state + * @fd: File descriptor lines are read from + * @next_line: Offset in @buf of the start of the first line not yet + * returned by lineread_get() + * @count: Number of bytes in @buf read from the file, but not yet + * returned by lineread_get() + * @buf: Buffer storing data read from file. + */ +struct lineread { + int fd; int next_line; + int count; + + /* One extra byte for possible trailing \0 */ + char buf[LINEREAD_BUFFER_SIZE+1]; +}; + +void lineread_init(struct lineread *lr, int fd); +int lineread_get(struct lineread *lr, char **line); + +#endif /* _LINEREAD_H */ |