really create glitch-free branch

git-svn-id: file:///home/lennart/svn/public/pulseaudio/branches/glitch-free@2120 fefdeb5f-60dc-0310-8127-8f9354f1896f

1 files changed, 155 insertions, 0 deletions

diff --git a/src/pulsecore/cli.c b/src/pulsecore/cli.c
new file mode 100644
index 00000000..85e08634
--- /dev/null
+++ b/src/pulsecore/cli.c
@@ -0,0 +1,155 @@
+/* $Id$ */
+
+/***
+  This file is part of PulseAudio.
+
+  Copyright 2004-2006 Lennart Poettering
+
+  PulseAudio is free software; you can redistribute it and/or modify
+  it under the terms of the GNU Lesser General Public License as published
+  by the Free Software Foundation; either version 2 of the License,
+  or (at your option) any later version.
+
+  PulseAudio 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 Lesser General Public License
+  along with PulseAudio; if not, write to the Free Software
+  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
+  USA.
+***/
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+
+#include <pulse/xmalloc.h>
+
+#include <pulsecore/ioline.h>
+#include <pulsecore/module.h>
+#include <pulsecore/sink.h>
+#include <pulsecore/source.h>
+#include <pulsecore/client.h>
+#include <pulsecore/sink-input.h>
+#include <pulsecore/source-output.h>
+#include <pulsecore/tokenizer.h>
+#include <pulsecore/strbuf.h>
+#include <pulsecore/namereg.h>
+#include <pulsecore/cli-text.h>
+#include <pulsecore/cli-command.h>
+#include <pulsecore/log.h>
+#include <pulsecore/macro.h>
+
+#include "cli.h"
+
+#define PROMPT ">>> "
+
+struct pa_cli {
+    pa_core *core;
+    pa_ioline *line;
+
+    void (*eof_callback)(pa_cli *c, void *userdata);
+    void *userdata;
+
+    pa_client *client;
+
+    pa_bool_t fail, kill_requested;
+    int defer_kill;
+};
+
+static void line_callback(pa_ioline *line, const char *s, void *userdata);
+static void client_kill(pa_client *c);
+
+pa_cli* pa_cli_new(pa_core *core, pa_iochannel *io, pa_module *m) {
+    char cname[256];
+    pa_cli *c;
+    pa_assert(io);
+
+    c = pa_xnew(pa_cli, 1);
+    c->core = core;
+    pa_assert_se(c->line = pa_ioline_new(io));
+
+    c->userdata = NULL;
+    c->eof_callback = NULL;
+
+    pa_iochannel_socket_peer_to_string(io, cname, sizeof(cname));
+    pa_assert_se(c->client = pa_client_new(core, __FILE__, cname));
+    c->client->kill = client_kill;
+    c->client->userdata = c;
+    c->client->owner = m;
+
+    pa_ioline_set_callback(c->line, line_callback, c);
+    pa_ioline_puts(c->line, "Welcome to PulseAudio! Use \"help\" for usage information.\n"PROMPT);
+
+    c->fail = c->kill_requested = FALSE;
+    c->defer_kill = 0;
+
+    return c;
+}
+
+void pa_cli_free(pa_cli *c) {
+    pa_assert(c);
+
+    pa_ioline_close(c->line);
+    pa_ioline_unref(c->line);
+    pa_client_free(c->client);
+    pa_xfree(c);
+}
+
+static void client_kill(pa_client *client) {
+    pa_cli *c;
+
+    pa_assert(client);
+    pa_assert_se(c = client->userdata);
+
+    pa_log_debug("CLI client killed.");
+    if (c->defer_kill)
+        c->kill_requested = TRUE;
+    else {
+        if (c->eof_callback)
+            c->eof_callback(c, c->userdata);
+    }
+}
+
+static void line_callback(pa_ioline *line, const char *s, void *userdata) {
+    pa_strbuf *buf;
+    pa_cli *c = userdata;
+    char *p;
+
+    pa_assert(line);
+    pa_assert(c);
+
+    if (!s) {
+        pa_log_debug("CLI got EOF from user.");
+        if (c->eof_callback)
+            c->eof_callback(c, c->userdata);
+
+        return;
+    }
+
+    pa_assert_se(buf = pa_strbuf_new());
+    c->defer_kill++;
+    pa_cli_command_execute_line(c->core, s, buf, &c->fail);
+    c->defer_kill--;
+    pa_ioline_puts(line, p = pa_strbuf_tostring_free(buf));
+    pa_xfree(p);
+
+    if (c->kill_requested) {
+        if (c->eof_callback)
+            c->eof_callback(c, c->userdata);
+    } else
+        pa_ioline_puts(line, PROMPT);
+}
+
+void pa_cli_set_eof_callback(pa_cli *c, void (*cb)(pa_cli*c, void *userdata), void *userdata) {
+    pa_assert(c);
+
+    c->eof_callback = cb;
+    c->userdata = userdata;
+}