Add a buffer_ferror() function to read the error flag from the input
stream, so callers can do:
some_error_prone_operation(f, ...);
if (buffer_ferror(f))
return error("input error: %s", strerror(errno));
instead of waiting until it is time to close the file.
Signed-off-by: Jonathan Nieder <jrnieder@xxxxxxxxx>
---
vcs-svn/line_buffer.c | 5 +++++
vcs-svn/line_buffer.h | 1 +
2 files changed, 6 insertions(+), 0 deletions(-)
diff --git a/vcs-svn/line_buffer.c b/vcs-svn/line_buffer.c
index 19caa21..43da509 100644
--- a/vcs-svn/line_buffer.c
+++ b/vcs-svn/line_buffer.c
@@ -27,6 +27,11 @@ int buffer_deinit(struct line_buffer *buf)
return err;
}
+int buffer_ferror(struct line_buffer *buf)
+{
+ return ferror(buf->infile);
+}
+
int buffer_at_eof(struct line_buffer *buf)
{
int ch;
diff --git a/vcs-svn/line_buffer.h b/vcs-svn/line_buffer.h
index 0269aed..4899289 100644
--- a/vcs-svn/line_buffer.h
+++ b/vcs-svn/line_buffer.h
@@ -14,6 +14,7 @@ struct line_buffer {
int buffer_init(struct line_buffer *buf, const char *filename);
int buffer_deinit(struct line_buffer *buf);
+int buffer_ferror(struct line_buffer *buf);
int buffer_at_eof(struct line_buffer *buf);
char *buffer_read_line(struct line_buffer *buf);
char *buffer_read_string(struct line_buffer *buf, uint32_t len);
--
1.7.2.3
--
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