From: Steven Rostedt <rostedt@goodmis.org>
To: Tzvetomir Stoyanov <tz.stoyanov@gmail.com>
Cc: Linux Trace Devel <linux-trace-devel@vger.kernel.org>
Subject: Re: [PATCH 6/8] trace-cmd output: Set file_state of output handle after copy of headers
Date: Tue, 2 Mar 2021 14:59:46 -0500 [thread overview]
Message-ID: <20210302145946.28bc3bdd@gandalf.local.home> (raw)
In-Reply-To: <CAPpZLN4vmvQ7dNSyt-0DWBVtdyEh_9+w9r6X-_XQmD-g3yb6QA@mail.gmail.com>
On Tue, 2 Mar 2021 19:35:11 +0200
Tzvetomir Stoyanov <tz.stoyanov@gmail.com> wrote:
> On Tue, Mar 2, 2021 at 5:48 PM Steven Rostedt <rostedt@goodmis.org> wrote:
> >
> > On Tue, 2 Mar 2021 16:51:56 +0200
> > Tzvetomir Stoyanov <tz.stoyanov@gmail.com> wrote:
> >
> > > > handle->file_state = state;
> > >
> > > The output handle should have the same state as the input handle,
> > > so we can just have:
> > >
> > > handle->file_state = tracecmd_get_file_state(ihandle);
> > >
> > > There is exactly the same use case in tracecmd_get_output_handle_fd(),
> > > where the out handle is built on a partially written file.
> >
> > The above is pretty much exactly what I did, but it eliminates error
>
> There is an error checking, if tracecmd_copy_headers() returns 0 then
> the ihandle state must be valid and we can use it safely.
> The tracecmd_get_file_state() could fail only in case of a NULL
> ihandle pointer.
Nevermind, I mistaken the "tracecmd_get_file_state()" as
"tracecmd_copy_headers()", I didn't notice that you introduced another API.
Sure something like this would work too.
-- Steve
next prev parent reply other threads:[~2021-03-03 0:12 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-03-01 14:37 [PATCH 0/8] trace-cmd: Fixes for trace-cmd restore Steven Rostedt
2021-03-01 14:37 ` [PATCH 1/8] trace-cmd restore: Fix to add saved cmdlines after calling tracecmd_create_init_file_override() Steven Rostedt
2021-03-01 14:37 ` [PATCH 2/8] trace-cmd: Create API tracecmd_read_pre_headers() Steven Rostedt
2021-03-02 4:49 ` Tzvetomir Stoyanov
2021-03-02 14:13 ` Steven Rostedt
2021-03-01 14:37 ` [PATCH 3/8] trace-cmd: Move tracecmd_write_cmdlines() out of tracecmd_append_cpu_data() Steven Rostedt
2021-03-01 14:37 ` [PATCH 4/8] trace-cmd: Move the output state updates into the functions that change the state Steven Rostedt
2021-03-01 14:37 ` [PATCH 5/8] trace-cmd: Move the input " Steven Rostedt
2021-03-01 14:37 ` [PATCH 6/8] trace-cmd output: Set file_state of output handle after copy of headers Steven Rostedt
2021-03-02 8:10 ` Tzvetomir Stoyanov
2021-03-02 14:19 ` Steven Rostedt
2021-03-02 14:51 ` Tzvetomir Stoyanov
2021-03-02 15:48 ` Steven Rostedt
2021-03-02 17:35 ` Tzvetomir Stoyanov
2021-03-02 19:59 ` Steven Rostedt [this message]
2021-03-02 14:22 ` Steven Rostedt
2021-03-01 14:37 ` [PATCH 7/8] trace-cmd input: Validate the input handle when copying from it Steven Rostedt
2021-03-01 14:37 ` [PATCH 8/8] trace-cmd input: Add validation updates to the copy of a handle Steven Rostedt
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