From: larsxschneider@gmail.com
To: git@vger.kernel.org
Cc: gitster@pobox.com, jnareb@gmail.com, peff@peff.net,
Lars Schneider <larsxschneider@gmail.com>
Subject: [PATCH v10 07/14] pkt-line: add packet_write_fmt_gently()
Date: Sat, 8 Oct 2016 13:25:23 +0200 [thread overview]
Message-ID: <20161008112530.15506-8-larsxschneider@gmail.com> (raw)
In-Reply-To: <20161008112530.15506-1-larsxschneider@gmail.com>
From: Lars Schneider <larsxschneider@gmail.com>
packet_write_fmt() would die in case of a write error even though for
some callers an error would be acceptable. Add packet_write_fmt_gently()
which writes a formatted pkt-line like packet_write_fmt() but does not
die in case of an error. The function is used in a subsequent patch.
Signed-off-by: Lars Schneider <larsxschneider@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
---
pkt-line.c | 34 ++++++++++++++++++++++++++++++----
pkt-line.h | 1 +
2 files changed, 31 insertions(+), 4 deletions(-)
diff --git a/pkt-line.c b/pkt-line.c
index e8adc0f..56915f0 100644
--- a/pkt-line.c
+++ b/pkt-line.c
@@ -125,16 +125,42 @@ static void format_packet(struct strbuf *out, const char *fmt, va_list args)
packet_trace(out->buf + orig_len + 4, n - 4, 1);
}
+static int packet_write_fmt_1(int fd, int gently,
+ const char *fmt, va_list args)
+{
+ struct strbuf buf = STRBUF_INIT;
+ ssize_t count;
+
+ format_packet(&buf, fmt, args);
+ count = write_in_full(fd, buf.buf, buf.len);
+ if (count == buf.len)
+ return 0;
+
+ if (!gently) {
+ check_pipe(errno);
+ die_errno("packet write with format failed");
+ }
+ return error("packet write with format failed");
+}
+
void packet_write_fmt(int fd, const char *fmt, ...)
{
- static struct strbuf buf = STRBUF_INIT;
va_list args;
- strbuf_reset(&buf);
va_start(args, fmt);
- format_packet(&buf, fmt, args);
+ packet_write_fmt_1(fd, 0, fmt, args);
+ va_end(args);
+}
+
+int packet_write_fmt_gently(int fd, const char *fmt, ...)
+{
+ int status;
+ va_list args;
+
+ va_start(args, fmt);
+ status = packet_write_fmt_1(fd, 1, fmt, args);
va_end(args);
- write_or_die(fd, buf.buf, buf.len);
+ return status;
}
void packet_buf_write(struct strbuf *buf, const char *fmt, ...)
diff --git a/pkt-line.h b/pkt-line.h
index 1902fb3..3caea77 100644
--- a/pkt-line.h
+++ b/pkt-line.h
@@ -23,6 +23,7 @@ void packet_flush(int fd);
void packet_write_fmt(int fd, const char *fmt, ...) __attribute__((format (printf, 2, 3)));
void packet_buf_flush(struct strbuf *buf);
void packet_buf_write(struct strbuf *buf, const char *fmt, ...) __attribute__((format (printf, 2, 3)));
+int packet_write_fmt_gently(int fd, const char *fmt, ...) __attribute__((format (printf, 2, 3)));
/*
* Read a packetized line into the buffer, which must be at least size bytes
--
2.10.0
next prev parent reply other threads:[~2016-10-08 11:25 UTC|newest]
Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-10-08 11:25 [PATCH v10 00/14] Git filter protocol larsxschneider
2016-10-08 11:25 ` [PATCH v10 01/14] convert: quote filter names in error messages larsxschneider
2016-10-08 11:25 ` [PATCH v10 02/14] convert: modernize tests larsxschneider
2016-10-08 11:25 ` [PATCH v10 03/14] run-command: move check_pipe() from write_or_die to run_command larsxschneider
2016-10-08 11:25 ` [PATCH v10 04/14] run-command: add clean_on_exit_handler larsxschneider
2016-10-11 12:12 ` Johannes Schindelin
2016-10-15 15:02 ` Lars Schneider
2016-10-16 8:03 ` Johannes Schindelin
2016-10-16 21:57 ` Lars Schneider
2016-10-08 11:25 ` [PATCH v10 05/14] pkt-line: rename packet_write() to packet_write_fmt() larsxschneider
2016-10-08 11:25 ` [PATCH v10 06/14] pkt-line: extract set_packet_header() larsxschneider
2016-10-08 11:25 ` larsxschneider [this message]
2016-10-08 11:25 ` [PATCH v10 08/14] pkt-line: add packet_flush_gently() larsxschneider
2016-10-08 11:25 ` [PATCH v10 09/14] pkt-line: add packet_write_gently() larsxschneider
2016-10-08 11:25 ` [PATCH v10 10/14] pkt-line: add functions to read/write flush terminated packet streams larsxschneider
2016-10-08 11:25 ` [PATCH v10 11/14] convert: make apply_filter() adhere to standard Git error handling larsxschneider
2016-10-08 11:25 ` [PATCH v10 12/14] convert: prepare filter.<driver>.process option larsxschneider
2016-10-08 11:25 ` [PATCH v10 13/14] convert: add " larsxschneider
2016-10-08 23:06 ` Jakub Narębski
2016-10-09 5:32 ` Torsten Bögershausen
2016-10-11 15:29 ` Lars Schneider
2016-10-11 22:26 ` Lars Schneider
2016-10-12 10:54 ` Jakub Narębski
2016-10-15 14:45 ` Lars Schneider
2016-10-15 17:41 ` Jeff King
2016-10-15 19:42 ` Jakub Narębski
2016-10-10 19:58 ` Junio C Hamano
2016-10-11 8:11 ` Lars Schneider
2016-10-11 10:09 ` Torsten Bögershausen
2016-10-16 23:13 ` Lars Schneider
2016-10-17 17:05 ` Junio C Hamano
2016-10-08 11:25 ` [PATCH v10 14/14] contrib/long-running-filter: add long running filter example larsxschneider
2016-10-09 5:42 ` Torsten Bögershausen
2016-10-15 14:47 ` Lars Schneider
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
List information: http://vger.kernel.org/majordomo-info.html
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20161008112530.15506-8-larsxschneider@gmail.com \
--to=larsxschneider@gmail.com \
--cc=git@vger.kernel.org \
--cc=gitster@pobox.com \
--cc=jnareb@gmail.com \
--cc=peff@peff.net \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
Code repositories for project(s) associated with this public inbox
https://80x24.org/mirrors/git.git
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).