git@vger.kernel.org mailing list mirror (one of many)
 help / color / mirror / code / Atom feed
From: Jonathan Nieder <jrnieder@gmail.com>
To: git@vger.kernel.org
Cc: David Barr <david.barr@cordelta.com>,
	Thomas Rast <trast@student.ethz.ch>,
	Ramkumar Ramachandra <artagnon@gmail.com>
Subject: [PATCH 11/12] vcs-svn: allow input from file descriptor
Date: Sun, 2 Jan 2011 21:09:38 -0600	[thread overview]
Message-ID: <20110103030938.GD10143@burratino> (raw)
In-Reply-To: <20110103030328.GA10143@burratino>

Based-on-patch-by: David Barr <david.barr@cordelta.com>
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
---
No fd_buffer.  This is essentially the way David did it in the first
place; sorry to have doubted.

 t/t0081-line-buffer.sh  |    9 +++++++++
 test-line-buffer.c      |   11 ++++++++---
 vcs-svn/line_buffer.c   |    8 ++++++++
 vcs-svn/line_buffer.h   |    1 +
 vcs-svn/line_buffer.txt |    9 +++++----
 5 files changed, 31 insertions(+), 7 deletions(-)

diff --git a/t/t0081-line-buffer.sh b/t/t0081-line-buffer.sh
index a8eeb20..550fad0 100755
--- a/t/t0081-line-buffer.sh
+++ b/t/t0081-line-buffer.sh
@@ -131,6 +131,15 @@ test_expect_success PIPE,EXPENSIVE 'longer read (around 65536 bytes)' '
 	long_read_test 65536
 '
 
+test_expect_success 'read from file descriptor' '
+	rm -f input &&
+	echo hello >expect &&
+	echo hello >input &&
+	echo copy 6 |
+	test-line-buffer "&4" 4<input >actual &&
+	test_cmp expect actual
+'
+
 test_expect_success 'buffer_read_string copes with null byte' '
 	>expect &&
 	q_to_nul <<-\EOF | test-line-buffer >actual &&
diff --git a/test-line-buffer.c b/test-line-buffer.c
index 19bf2d4..25b20b9 100644
--- a/test-line-buffer.c
+++ b/test-line-buffer.c
@@ -69,13 +69,18 @@ int main(int argc, char *argv[])
 	else if (argc == 2)
 		filename = argv[1];
 	else
-		usage("test-line-buffer [file] < script");
+		usage("test-line-buffer [file | &fd] < script");
 
 	if (buffer_init(&stdin_buf, NULL))
 		die_errno("open error");
 	if (filename) {
-		if (buffer_init(&file_buf, filename))
-			die_errno("error opening %s", filename);
+		if (*filename == '&') {
+			if (buffer_fdinit(&file_buf, strtouint32(filename + 1)))
+				die_errno("error opening fd %s", filename + 1);
+		} else {
+			if (buffer_init(&file_buf, filename))
+				die_errno("error opening %s", filename);
+		}
 		input = &file_buf;
 	}
 
diff --git a/vcs-svn/line_buffer.c b/vcs-svn/line_buffer.c
index 37ec56e..e29a81a 100644
--- a/vcs-svn/line_buffer.c
+++ b/vcs-svn/line_buffer.c
@@ -17,6 +17,14 @@ int buffer_init(struct line_buffer *buf, const char *filename)
 	return 0;
 }
 
+int buffer_fdinit(struct line_buffer *buf, int fd)
+{
+	buf->infile = fdopen(fd, "r");
+	if (!buf->infile)
+		return -1;
+	return 0;
+}
+
 int buffer_deinit(struct line_buffer *buf)
 {
 	int err;
diff --git a/vcs-svn/line_buffer.h b/vcs-svn/line_buffer.h
index 0a59c73..630d83c 100644
--- a/vcs-svn/line_buffer.h
+++ b/vcs-svn/line_buffer.h
@@ -13,6 +13,7 @@ struct line_buffer {
 #define LINE_BUFFER_INIT {"", STRBUF_INIT, NULL}
 
 int buffer_init(struct line_buffer *buf, const char *filename);
+int buffer_fdinit(struct line_buffer *buf, int fd);
 int buffer_deinit(struct line_buffer *buf);
 char *buffer_read_line(struct line_buffer *buf);
 char *buffer_read_string(struct line_buffer *buf, uint32_t len);
diff --git a/vcs-svn/line_buffer.txt b/vcs-svn/line_buffer.txt
index f8eaa4d..4e8fb71 100644
--- a/vcs-svn/line_buffer.txt
+++ b/vcs-svn/line_buffer.txt
@@ -27,10 +27,11 @@ resources.
 Functions
 ---------
 
-`buffer_init`::
-	Open the named file for input.  If filename is NULL,
-	start reading from stdin.  On failure, returns -1 (with
-	errno indicating the nature of the failure).
+`buffer_init`, `buffer_fdinit`::
+	Open the named file or file descriptor for input.
+	buffer_init(buf, NULL) prepares to read from stdin.
+	On failure, returns -1 (with errno indicating the nature
+	of the failure).
 
 `buffer_deinit`::
 	Stop reading from the current file (closing it unless
-- 
1.7.4.rc0.580.g89dc.dirty

  parent reply	other threads:[~2011-01-03  3:09 UTC|newest]

Thread overview: 25+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-12-24  8:05 [PATCH 0/4] teach vcs-svn/line_buffer to handle multiple input files Jonathan Nieder
2010-12-24  8:08 ` [PATCH 1/4] vcs-svn: eliminate global byte_buffer Jonathan Nieder
2010-12-24  8:17 ` [PATCH 2/4] vcs-svn: replace buffer_read_string memory pool with a strbuf Jonathan Nieder
2010-12-24  8:18 ` [PATCH 3/4] vcs-svn: collect line_buffer data in a struct Jonathan Nieder
2010-12-24  8:28 ` [PATCH 4/4] vcs-svn: teach line_buffer to handle multiple input files Jonathan Nieder
2011-01-03  0:49 ` [PATCH 0/4] teach vcs-svn/line_buffer " Jonathan Nieder
2011-01-03  0:50   ` [PATCH 5/8] vcs-svn: make test-line-buffer input format more flexible Jonathan Nieder
2011-01-03  0:51   ` [PATCH 6/8] tests: give vcs-svn/line_buffer its own test script Jonathan Nieder
2011-01-03  0:52   ` [PATCH 7/8] vcs-svn: tweak test-line-buffer to not assume line-oriented input Jonathan Nieder
2011-01-03  1:07   ` [PATCH 8/8] t0081 (line-buffer): add buffering tests Jonathan Nieder
2011-01-03  1:34     ` Jonathan Nieder
2011-01-03  3:03   ` [PATCHES 9-12/12] line_buffer: more wrappers around stdio functions Jonathan Nieder
2011-01-03  3:05     ` [PATCH 09/12] vcs-svn: add binary-safe read function Jonathan Nieder
2011-01-03  3:06     ` [PATCH 10/12] vcs-svn: allow character-oriented input Jonathan Nieder
2011-01-03  3:09     ` Jonathan Nieder [this message]
2011-01-03  3:10     ` [PATCH 12/12] vcs-svn: teach line_buffer about temporary files Jonathan Nieder
2011-01-22  6:42       ` [FYI/PATCH] vcs-svn: give control over temporary file names Jonathan Nieder
2011-02-26 11:44 ` [PULL svn-fe] fast-import 'ls', line-buffer changes Jonathan Nieder
2011-02-26 12:03   ` David Michael Barr
2011-02-28  6:15   ` Junio C Hamano
2011-02-28 21:32     ` [PATCH svn-fe] fast-import: make code "-Wpointer-arith" clean Jonathan Nieder
2011-02-28 21:36       ` Sverre Rabbelier
2011-02-28 22:05         ` Junio C Hamano
2011-02-28 23:15       ` Jonathan Nieder
2011-03-01  0:41         ` Junio C Hamano

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=20110103030938.GD10143@burratino \
    --to=jrnieder@gmail.com \
    --cc=artagnon@gmail.com \
    --cc=david.barr@cordelta.com \
    --cc=git@vger.kernel.org \
    --cc=trast@student.ethz.ch \
    /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).