linux-trace-devel.vger.kernel.org archive mirror
 help / color / mirror / Atom feed
From: "Tzvetomir Stoyanov (VMware)" <tz.stoyanov@gmail.com>
To: rostedt@goodmis.org
Cc: linux-trace-devel@vger.kernel.org
Subject: [PATCH v5 40/40] trace-cmd: Add new command "trace-cmd convert"
Date: Thu, 10 Jun 2021 14:34:26 +0300	[thread overview]
Message-ID: <20210610113426.257931-41-tz.stoyanov@gmail.com> (raw)
In-Reply-To: <20210610113426.257931-1-tz.stoyanov@gmail.com>

A new trace-cmd subcommand is added, used to convert trace files:

trace-cmd convert -i <input file> -o <output file> --compression
<out file compression>

The command reads the given input trace file and creates output trace
file with given compression. The --compression parameter is optional:
 - no --compression parameter: the output file inherits the compression
   from the input file.
 --compression none - the output file is not compressed.
 --compression any  - use the best available compression algorithm to
   compress the output file
 --compression <algorithm> - use the specified compression algorithm, if
   available, to compress the output file.

Signed-off-by: Tzvetomir Stoyanov (VMware) <tz.stoyanov@gmail.com>
---
 tracecmd/Makefile              |  1 +
 tracecmd/include/trace-local.h |  2 +
 tracecmd/trace-cmd.c           |  1 +
 tracecmd/trace-convert.c       | 93 ++++++++++++++++++++++++++++++++++
 tracecmd/trace-usage.c         | 12 +++++
 5 files changed, 109 insertions(+)
 create mode 100644 tracecmd/trace-convert.c

diff --git a/tracecmd/Makefile b/tracecmd/Makefile
index 80c69bbb..35086b71 100644
--- a/tracecmd/Makefile
+++ b/tracecmd/Makefile
@@ -36,6 +36,7 @@ TRACE_CMD_OBJS += trace-usage.o
 TRACE_CMD_OBJS += trace-dump.o
 TRACE_CMD_OBJS += trace-clear.o
 TRACE_CMD_OBJS += trace-vm.o
+TRACE_CMD_OBJS += trace-convert.o
 
 ifeq ($(VSOCK_DEFINED), 1)
 TRACE_CMD_OBJS += trace-agent.o
diff --git a/tracecmd/include/trace-local.h b/tracecmd/include/trace-local.h
index e9a0aea8..13dab44c 100644
--- a/tracecmd/include/trace-local.h
+++ b/tracecmd/include/trace-local.h
@@ -110,6 +110,8 @@ void trace_usage(int argc, char **argv);
 
 void trace_dump(int argc, char **argv);
 
+void trace_convert(int argc, char **argv);
+
 int trace_record_agent(struct tracecmd_msg_handle *msg_handle,
 		       int cpus, int *fds,
 		       int argc, char **argv, bool use_fifos,
diff --git a/tracecmd/trace-cmd.c b/tracecmd/trace-cmd.c
index 71c8f6d6..e6274c35 100644
--- a/tracecmd/trace-cmd.c
+++ b/tracecmd/trace-cmd.c
@@ -130,6 +130,7 @@ struct command commands[] = {
 	{"list", trace_list},
 	{"help", trace_usage},
 	{"dump", trace_dump},
+	{"convert", trace_convert},
 	{"-h", trace_usage},
 };
 
diff --git a/tracecmd/trace-convert.c b/tracecmd/trace-convert.c
new file mode 100644
index 00000000..d75859c1
--- /dev/null
+++ b/tracecmd/trace-convert.c
@@ -0,0 +1,93 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2021, VMware, Tzvetomir Stoyanov <tz.stoyanov@gmail.com>
+ */
+#include <stdlib.h>
+#include <unistd.h>
+#include <getopt.h>
+#include <fcntl.h>
+#include <errno.h>
+
+#include "trace-local.h"
+#include "trace-cmd.h"
+#include "trace-cmd-private.h"
+
+static void convert_file(const char *in, const char *out, char *compr)
+{
+	struct tracecmd_input *ihandle;
+	struct tracecmd_output *ohandle;
+
+	ihandle = tracecmd_open(in, 0);
+	if (!ihandle)
+		die("error reading %s", in);
+
+	ohandle = tracecmd_copy(ihandle, out, TRACECMD_FILE_CPU_FLYRECORD, compr);
+	if (!ohandle)
+		die("error writing %s", out);
+	tracecmd_output_close(ohandle);
+}
+
+enum {
+	OPT_comporession	= 255,
+};
+
+void trace_convert(int argc, char **argv)
+{
+	char *input_file = NULL;
+	char *output_file = NULL;
+	char *compression = NULL;
+	int c;
+
+	if (argc < 2)
+		usage(argv);
+
+	if (strcmp(argv[1], "convert") != 0)
+		usage(argv);
+	for (;;) {
+		int option_index = 0;
+		static struct option long_options[] = {
+			{"compression", required_argument, NULL, OPT_comporession},
+			{"help", no_argument, NULL, '?'},
+			{NULL, 0, NULL, 0}
+		};
+
+		c = getopt_long (argc-1, argv+1, "+hi:o:", long_options, &option_index);
+		if (c == -1)
+			break;
+		switch (c) {
+		case 'i':
+			if (input_file)
+				die("Only one input file is supported, %s already set", input_file);
+			input_file = optarg;
+			break;
+		case 'o':
+			if (output_file)
+				die("Only one output file is supported, %s already set", output_file);
+			output_file = optarg;
+			break;
+		case OPT_comporession:
+			if (strcmp(optarg, "any") && strcmp(optarg, "none") &&
+			    !tracecmd_compress_is_supported(optarg, NULL))
+				die("Compression algorithm  %s is not supported", optarg);
+			compression = optarg;
+			break;
+		case 'h':
+		case '?':
+		default:
+			usage(argv);
+		}
+	}
+
+	if ((argc - optind) >= 2) {
+		if (output_file)
+			usage(argv);
+		output_file = argv[optind + 1];
+	}
+
+	if (!input_file)
+		input_file = DEFAULT_INPUT_FILE;
+	if (!output_file)
+		usage(argv);
+
+	convert_file(input_file, output_file, compression);
+}
diff --git a/tracecmd/trace-usage.c b/tracecmd/trace-usage.c
index c70f9919..d0d12e87 100644
--- a/tracecmd/trace-usage.c
+++ b/tracecmd/trace-usage.c
@@ -392,6 +392,18 @@ static struct usage_help usage_help[] = {
 		"          --clock trace clock, saved in the file\n"
 		"          -h, --help show usage information\n"
 	},
+	{
+		"convert",
+		"convert trace file to different version",
+		" %s convert [options]\n"
+		"          -i input file, default is trace.dat\n"
+		"          -o output file, mandatory parameter.\n"
+		"             The output file can be specified also as last argument of the command\n"
+		"          --compression compress the trace output file, one of these strings can be passed:\n"
+		"                            any  - auto select the best available compression algorithm\n"
+		"                            none - do not compress the trace file\n"
+		"                            name - the name of the desired compression algorithms\n"
+		"                        available algorithms can be listed with trace-cmd list -c\n"	},
 	{
 		NULL, NULL, NULL
 	}
-- 
2.31.1


      parent reply	other threads:[~2021-06-10 11:35 UTC|newest]

Thread overview: 44+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-06-10 11:33 [PATCH v5 00/40] Add trace file compression Tzvetomir Stoyanov (VMware)
2021-06-10 11:33 ` [PATCH v5 01/40] trace-cmd library: Remove unused private APIs for creating trace files Tzvetomir Stoyanov (VMware)
2021-06-10 11:33 ` [PATCH v5 02/40] trace-cmd library: Remove unused API tracecmd_update_option Tzvetomir Stoyanov (VMware)
2021-06-10 11:33 ` [PATCH v5 03/40] trace-cmd: Check if file version is supported Tzvetomir Stoyanov (VMware)
2021-06-10 11:33 ` [PATCH v5 04/40] trace-cmd library: Add new API to get file version of input handler Tzvetomir Stoyanov (VMware)
2021-06-10 11:33 ` [PATCH v5 05/40] trace-cmd library: Select the file version when writing trace file Tzvetomir Stoyanov (VMware)
2021-06-10 11:33 ` [PATCH v5 06/40] trace-cmd: Add APIs for library initialization and free Tzvetomir Stoyanov (VMware)
2021-06-22  1:27   ` Steven Rostedt
2021-06-22  6:41     ` Tzvetomir Stoyanov
2021-06-22 13:21       ` Steven Rostedt
2021-06-10 11:33 ` [PATCH v5 07/40] trace-cmd library: Add support for compression algorithms Tzvetomir Stoyanov (VMware)
2021-06-10 11:33 ` [PATCH v5 08/40] trace-cmd list: Show supported " Tzvetomir Stoyanov (VMware)
2021-06-10 11:33 ` [PATCH v5 09/40] trace-cmd library: Bump the trace file version to 7 Tzvetomir Stoyanov (VMware)
2021-06-10 11:33 ` [PATCH v5 10/40] trace-cmd library: Compress part of the trace file Tzvetomir Stoyanov (VMware)
2021-06-10 11:33 ` [PATCH v5 11/40] trace-cmd library: Read compressed " Tzvetomir Stoyanov (VMware)
2021-06-10 11:33 ` [PATCH v5 12/40] trace-cmd library: Add new API to get compression of input handler Tzvetomir Stoyanov (VMware)
2021-06-10 11:33 ` [PATCH v5 13/40] trace-cmd library: Inherit compression algorithm from input file Tzvetomir Stoyanov (VMware)
2021-06-10 11:34 ` [PATCH v5 14/40] trace-cmd library: Extend the create file APIs to support different compression Tzvetomir Stoyanov (VMware)
2021-06-10 11:34 ` [PATCH v5 15/40] trace-cmd record: Add new parameter --compression Tzvetomir Stoyanov (VMware)
2021-06-10 11:34 ` [PATCH v5 16/40] trace-cmd dump: Add support for trace files version 7 Tzvetomir Stoyanov (VMware)
2021-06-10 11:34 ` [PATCH v5 17/40] trace-cmd library: Add support for zlib compression library Tzvetomir Stoyanov (VMware)
2021-06-10 11:34 ` [PATCH v5 18/40] trace-cmd library: Hide the logic for updating buffer offset Tzvetomir Stoyanov (VMware)
2021-06-10 11:34 ` [PATCH v5 19/40] trace-cmd: Move buffers description outside of options Tzvetomir Stoyanov (VMware)
2021-06-10 11:34 ` [PATCH v5 20/40] trace-cmd library: Track the offset in the option section in the trace file Tzvetomir Stoyanov (VMware)
2021-06-10 11:34 ` [PATCH v5 21/40] trace-cmd library: Add compression of the option section of " Tzvetomir Stoyanov (VMware)
2021-06-10 11:34 ` [PATCH v5 22/40] trace-cmd library: Refactor the logic for writing trace data in the file Tzvetomir Stoyanov (VMware)
2021-06-10 11:34 ` [PATCH v5 23/40] trace-cmd library: Add APIs for read and write compressed data in chunks Tzvetomir Stoyanov (VMware)
2021-06-10 11:34 ` [PATCH v5 24/40] trace-cmd: Compress trace data Tzvetomir Stoyanov (VMware)
2021-06-10 11:34 ` [PATCH v5 25/40] trace-cmd: Read compressed " Tzvetomir Stoyanov (VMware)
2021-06-10 11:34 ` [PATCH v5 26/40] trace-cmd library: Compress latency " Tzvetomir Stoyanov (VMware)
2021-06-10 11:34 ` [PATCH v5 27/40] trace-cmd: Read compressed " Tzvetomir Stoyanov (VMware)
2021-06-10 11:34 ` [PATCH v5 28/40] trace-cmd library: Reuse within the library the function that checks file state Tzvetomir Stoyanov (VMware)
2021-06-10 11:34 ` [PATCH v5 29/40] trace-cmd library: Make tracecmd_copy_headers() to work with output handler Tzvetomir Stoyanov (VMware)
2021-06-10 11:34 ` [PATCH v5 30/40] trace-cmd: Do not use trace file compression with streams Tzvetomir Stoyanov (VMware)
2021-06-10 11:34 ` [PATCH v5 31/40] trace-cmd library: Add new API to get file version of output handler Tzvetomir Stoyanov (VMware)
2021-06-10 11:34 ` [PATCH v5 32/40] trace-cmd: Add file state parameter to tracecmd_copy Tzvetomir Stoyanov (VMware)
2021-06-10 11:34 ` [PATCH v5 33/40] trace-cmd: Copy CPU count in tracecmd_copy Tzvetomir Stoyanov (VMware)
2021-06-10 11:34 ` [PATCH v5 34/40] trace-cmd: Copy buffers description " Tzvetomir Stoyanov (VMware)
2021-06-10 11:34 ` [PATCH v5 35/40] trace-cmd: Copy options " Tzvetomir Stoyanov (VMware)
2021-06-10 11:34 ` [PATCH v5 36/40] trace-cmd library: Refactor the logic for writing CPU trace data Tzvetomir Stoyanov (VMware)
2021-06-10 11:34 ` [PATCH v5 37/40] trace-cmd library: Refactor the logic for writing CPU instance " Tzvetomir Stoyanov (VMware)
2021-06-10 11:34 ` [PATCH v5 38/40] trace-cmd: Copy trace data in tracecmd_copy Tzvetomir Stoyanov (VMware)
2021-06-10 11:34 ` [PATCH v5 39/40] trace-cmd: Add compression parameter to tracecmd_copy Tzvetomir Stoyanov (VMware)
2021-06-10 11:34 ` Tzvetomir Stoyanov (VMware) [this message]

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

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20210610113426.257931-41-tz.stoyanov@gmail.com \
    --to=tz.stoyanov@gmail.com \
    --cc=linux-trace-devel@vger.kernel.org \
    --cc=rostedt@goodmis.org \
    --subject='Re: [PATCH v5 40/40] trace-cmd: Add new command "trace-cmd convert"' \
    /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

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 NNTP newsgroup(s).