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-rw-r--r--src/output/FifoOutputPlugin.cxx316
1 files changed, 0 insertions, 316 deletions
diff --git a/src/output/FifoOutputPlugin.cxx b/src/output/FifoOutputPlugin.cxx
deleted file mode 100644
index aeb9a6a87..000000000
--- a/src/output/FifoOutputPlugin.cxx
+++ /dev/null
@@ -1,316 +0,0 @@
-/*
- * Copyright (C) 2003-2013 The Music Player Daemon Project
- * http://www.musicpd.org
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
- */
-
-#include "config.h"
-#include "FifoOutputPlugin.hxx"
-#include "ConfigError.hxx"
-#include "OutputAPI.hxx"
-#include "Timer.hxx"
-#include "system/fd_util.h"
-#include "fs/AllocatedPath.hxx"
-#include "fs/FileSystem.hxx"
-#include "util/Error.hxx"
-#include "util/Domain.hxx"
-#include "Log.hxx"
-#include "open.h"
-
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <errno.h>
-#include <string.h>
-#include <unistd.h>
-
-#define FIFO_BUFFER_SIZE 65536 /* pipe capacity on Linux >= 2.6.11 */
-
-struct FifoOutput {
- struct audio_output base;
-
- AllocatedPath path;
- std::string path_utf8;
-
- int input;
- int output;
- bool created;
- Timer *timer;
-
- FifoOutput()
- :path(AllocatedPath::Null()), input(-1), output(-1),
- created(false) {}
-
- bool Initialize(const config_param &param, Error &error) {
- return ao_base_init(&base, &fifo_output_plugin, param,
- error);
- }
-
- void Deinitialize() {
- ao_base_finish(&base);
- }
-
- bool Create(Error &error);
- bool Check(Error &error);
- void Delete();
-
- bool Open(Error &error);
- void Close();
-};
-
-static constexpr Domain fifo_output_domain("fifo_output");
-
-inline void
-FifoOutput::Delete()
-{
- FormatDebug(fifo_output_domain,
- "Removing FIFO \"%s\"", path_utf8.c_str());
-
- if (!RemoveFile(path)) {
- FormatErrno(fifo_output_domain,
- "Could not remove FIFO \"%s\"",
- path_utf8.c_str());
- return;
- }
-
- created = false;
-}
-
-void
-FifoOutput::Close()
-{
- if (input >= 0) {
- close(input);
- input = -1;
- }
-
- if (output >= 0) {
- close(output);
- output = -1;
- }
-
- struct stat st;
- if (created && StatFile(path, st))
- Delete();
-}
-
-inline bool
-FifoOutput::Create(Error &error)
-{
- if (!MakeFifo(path, 0666)) {
- error.FormatErrno("Couldn't create FIFO \"%s\"",
- path_utf8.c_str());
- return false;
- }
-
- created = true;
- return true;
-}
-
-inline bool
-FifoOutput::Check(Error &error)
-{
- struct stat st;
- if (!StatFile(path, st)) {
- if (errno == ENOENT) {
- /* Path doesn't exist */
- return Create(error);
- }
-
- error.FormatErrno("Failed to stat FIFO \"%s\"",
- path_utf8.c_str());
- return false;
- }
-
- if (!S_ISFIFO(st.st_mode)) {
- error.Format(fifo_output_domain,
- "\"%s\" already exists, but is not a FIFO",
- path_utf8.c_str());
- return false;
- }
-
- return true;
-}
-
-inline bool
-FifoOutput::Open(Error &error)
-{
- if (!Check(error))
- return false;
-
- input = OpenFile(path, O_RDONLY|O_NONBLOCK|O_BINARY, 0);
- if (input < 0) {
- error.FormatErrno("Could not open FIFO \"%s\" for reading",
- path_utf8.c_str());
- Close();
- return false;
- }
-
- output = OpenFile(path, O_WRONLY|O_NONBLOCK|O_BINARY, 0);
- if (output < 0) {
- error.FormatErrno("Could not open FIFO \"%s\" for writing",
- path_utf8.c_str());
- Close();
- return false;
- }
-
- return true;
-}
-
-static bool
-fifo_open(FifoOutput *fd, Error &error)
-{
- return fd->Open(error);
-}
-
-static struct audio_output *
-fifo_output_init(const config_param &param, Error &error)
-{
- FifoOutput *fd = new FifoOutput();
-
- fd->path = param.GetBlockPath("path", error);
- if (fd->path.IsNull()) {
- delete fd;
-
- if (!error.IsDefined())
- error.Set(config_domain,
- "No \"path\" parameter specified");
- return nullptr;
- }
-
- fd->path_utf8 = fd->path.ToUTF8();
-
- if (!fd->Initialize(param, error)) {
- delete fd;
- return nullptr;
- }
-
- if (!fifo_open(fd, error)) {
- fd->Deinitialize();
- delete fd;
- return nullptr;
- }
-
- return &fd->base;
-}
-
-static void
-fifo_output_finish(struct audio_output *ao)
-{
- FifoOutput *fd = (FifoOutput *)ao;
-
- fd->Close();
- fd->Deinitialize();
- delete fd;
-}
-
-static bool
-fifo_output_open(struct audio_output *ao, AudioFormat &audio_format,
- gcc_unused Error &error)
-{
- FifoOutput *fd = (FifoOutput *)ao;
-
- fd->timer = new Timer(audio_format);
-
- return true;
-}
-
-static void
-fifo_output_close(struct audio_output *ao)
-{
- FifoOutput *fd = (FifoOutput *)ao;
-
- delete fd->timer;
-}
-
-static void
-fifo_output_cancel(struct audio_output *ao)
-{
- FifoOutput *fd = (FifoOutput *)ao;
- char buf[FIFO_BUFFER_SIZE];
- int bytes = 1;
-
- fd->timer->Reset();
-
- while (bytes > 0 && errno != EINTR)
- bytes = read(fd->input, buf, FIFO_BUFFER_SIZE);
-
- if (bytes < 0 && errno != EAGAIN) {
- FormatErrno(fifo_output_domain,
- "Flush of FIFO \"%s\" failed",
- fd->path_utf8.c_str());
- }
-}
-
-static unsigned
-fifo_output_delay(struct audio_output *ao)
-{
- FifoOutput *fd = (FifoOutput *)ao;
-
- return fd->timer->IsStarted()
- ? fd->timer->GetDelay()
- : 0;
-}
-
-static size_t
-fifo_output_play(struct audio_output *ao, const void *chunk, size_t size,
- Error &error)
-{
- FifoOutput *fd = (FifoOutput *)ao;
- ssize_t bytes;
-
- if (!fd->timer->IsStarted())
- fd->timer->Start();
- fd->timer->Add(size);
-
- while (true) {
- bytes = write(fd->output, chunk, size);
- if (bytes > 0)
- return (size_t)bytes;
-
- if (bytes < 0) {
- switch (errno) {
- case EAGAIN:
- /* The pipe is full, so empty it */
- fifo_output_cancel(&fd->base);
- continue;
- case EINTR:
- continue;
- }
-
- error.FormatErrno("Failed to write to FIFO %s",
- fd->path_utf8.c_str());
- return 0;
- }
- }
-}
-
-const struct audio_output_plugin fifo_output_plugin = {
- "fifo",
- nullptr,
- fifo_output_init,
- fifo_output_finish,
- nullptr,
- nullptr,
- fifo_output_open,
- fifo_output_close,
- fifo_output_delay,
- nullptr,
- fifo_output_play,
- nullptr,
- fifo_output_cancel,
- nullptr,
- nullptr,
-};