rename src to polyp

git-svn-id: file:///home/lennart/svn/public/pulseaudio/trunk@90 fefdeb5f-60dc-0310-8127-8f9354f1896f

polyp/main.c

@@ -0,0 +1,182 @@
+/* $Id$ */
+
+/***
+  This file is part of polypaudio.
+ 
+  polypaudio 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.
+ 
+  polypaudio 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 polypaudio; 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 <unistd.h>
+#include <errno.h>
+#include <string.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <signal.h>
+#include <stddef.h>
+#include <assert.h>
+#include <ltdl.h>
+#include <memblock.h>
+
+#include "core.h"
+#include "mainloop.h"
+#include "module.h"
+#include "mainloop-signal.h"
+#include "cmdline.h"
+#include "cli-command.h"
+#include "util.h"
+#include "sioman.h"
+
+static struct pa_mainloop *mainloop;
+
+static void exit_signal_callback(void *id, int sig, void *userdata) {
+    struct pa_mainloop_api* m = pa_mainloop_get_api(mainloop);
+    m->quit(m, 1);
+    fprintf(stderr, __FILE__": got signal.\n");
+}
+
+static void aux_signal_callback(void *id, int sig, void *userdata) {
+    struct pa_core *c = userdata;
+    assert(c);
+    pa_module_load(c, sig == SIGUSR1 ? "module-cli" : "module-cli-protocol-unix", NULL);
+}
+
+static void close_pipe(int p[2]) {
+    if (p[0] != -1)
+        close(p[0]);
+    if (p[1] != -1)
+        close(p[1]);
+    p[0] = p[1] = -1;
+}
+
+int main(int argc, char *argv[]) {
+    struct pa_core *c;
+    struct pa_cmdline *cmdline = NULL;
+    struct pa_strbuf *buf = NULL;
+    char *s;
+    int r, retval = 1;
+    int daemon_pipe[2] = { -1, -1 };
+
+    if (!(cmdline = pa_cmdline_parse(argc, argv))) {
+        fprintf(stderr, __FILE__": failed to parse command line.\n");
+        goto finish;
+    }
+
+    if (cmdline->help) {
+        pa_cmdline_help(argv[0]);
+        retval = 0;
+        goto finish;
+    }
+
+    if (cmdline->daemonize) {
+        pid_t child;
+
+        if (pa_stdio_acquire() < 0) {
+            fprintf(stderr, __FILE__": failed to acquire stdio.\n");
+            goto finish;
+        }
+
+        if (pipe(daemon_pipe) < 0) {
+            fprintf(stderr, __FILE__": failed to create pipe.\n");
+            goto finish;
+        }
+        
+        if ((child = fork()) < 0) {
+            fprintf(stderr, __FILE__": fork() failed: %s\n", strerror(errno));
+            goto finish;
+        }
+
+        if (child != 0) {
+            /* Father */
+
+            close(daemon_pipe[1]);
+            daemon_pipe[1] = -1;
+
+            if (pa_loop_read(daemon_pipe[0], &retval, sizeof(retval)) != sizeof(retval)) {
+                fprintf(stderr, __FILE__": read() failed: %s\n", strerror(errno));
+                retval = 1;
+            }
+
+            goto finish;
+        }
+
+        close(daemon_pipe[0]);
+        daemon_pipe[0] = -1;
+        
+        setsid();
+        setpgrp();
+    }
+    
+    r = lt_dlinit();
+    assert(r == 0);
+    
+    mainloop = pa_mainloop_new();
+    assert(mainloop);
+
+    r = pa_signal_init(pa_mainloop_get_api(mainloop));
+    assert(r == 0);
+    pa_signal_register(SIGINT, exit_signal_callback, NULL);
+    signal(SIGPIPE, SIG_IGN);
+
+    c = pa_core_new(pa_mainloop_get_api(mainloop));
+    assert(c);
+    
+    pa_signal_register(SIGUSR1, aux_signal_callback, c);
+    pa_signal_register(SIGUSR2, aux_signal_callback, c);
+
+    buf = pa_strbuf_new();
+    assert(buf);
+    r = pa_cli_command_execute(c, cmdline->cli_commands, buf, &cmdline->fail, &cmdline->verbose);
+    fprintf(stderr, s = pa_strbuf_tostring_free(buf));
+    free(s);
+    
+    if (r < 0 && cmdline->fail) {
+        fprintf(stderr, __FILE__": failed to initialize daemon.\n");
+        if (cmdline->daemonize)
+            pa_loop_write(daemon_pipe[1], &retval, sizeof(retval));
+    } else if (!c->modules || pa_idxset_ncontents(c->modules) == 0) {
+        fprintf(stderr, __FILE__": daemon startup without any loaded modules, refusing to work.\n");
+        if (cmdline->daemonize)
+            pa_loop_write(daemon_pipe[1], &retval, sizeof(retval));
+    } else {
+        retval = 0;
+        if (cmdline->daemonize)
+            pa_loop_write(daemon_pipe[1], &retval, sizeof(retval));
+        fprintf(stderr, __FILE__": mainloop entry.\n");
+        if (pa_mainloop_run(mainloop, &retval) < 0)
+            retval = 1;
+        fprintf(stderr, __FILE__": mainloop exit.\n");
+    }
+        
+    pa_core_free(c);
+
+    pa_signal_done();
+    pa_mainloop_free(mainloop);
+    
+    lt_dlexit();
+
+finish:
+
+    if (cmdline)
+        pa_cmdline_free(cmdline);
+
+    close_pipe(daemon_pipe);
+    
+    return retval;
+}