support for esd arguments: -spawnpid and -spawnfd

[pulseaudio] / polyp / module-esound-compat-spawnpid.c

diff --git a/polyp/module-esound-compat-spawnpid.c b/polyp/module-esound-compat-spawnpid.c
new file mode 100644 (file)
index 0000000..5583f07
--- /dev/null
+++ b/polyp/module-esound-compat-spawnpid.c
@@ -0,0 +1,77 @@
+
+/***
+  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 <assert.h>
+#include <string.h>
+#include <errno.h>
+#include <signal.h>
+
+#include "module.h"
+#include "util.h"
+#include "modargs.h"
+#include "log.h"
+
+PA_MODULE_AUTHOR("Lennart Poettering")
+PA_MODULE_DESCRIPTION("ESOUND compatibility module: -spawnpid emulation")
+PA_MODULE_USAGE("pid=<process id>")
+PA_MODULE_VERSION(PACKAGE_VERSION)
+
+static const char* const valid_modargs[] = {
+    "pid",
+    NULL,
+};
+
+int pa__init(struct pa_core *c, struct pa_module*m) {
+    struct pa_modargs *ma = NULL;
+    int ret = -1;
+    uint32_t pid = 0;
+    assert(c && m);
+
+    if (!(ma = pa_modargs_new(m->argument, valid_modargs)) ||
+        pa_modargs_get_value_u32(ma, "pid", &pid) < 0 ||
+        !pid) {
+        pa_log(__FILE__": Failed to parse module arguments\n");
+        goto finish;
+    }
+
+    if (kill(pid, SIGUSR1) < 0)
+        pa_log(__FILE__": WARNING: kill(%u) failed: %s\n", pid, strerror(errno));
+
+    pa_module_unload_request(m);
+
+    ret = 0;
+
+finish:
+    if (ma)
+        pa_modargs_free(ma);
+
+    return ret;
+}
+
+void pa__done(struct pa_core *c, struct pa_module*m) {
+    assert(c && m);
+}
+
+