basic cli interface

git-svn-id: file:///home/lennart/svn/public/pulseaudio/trunk@22 fefdeb5f-60dc-0310-8127-8f9354f1896f

src/cli.c

@@ -0,0 +1,83 @@
+#include <stdio.h>
+#include <string.h>
+#include <assert.h>
+#include <stdlib.h>
+
+#include "ioline.h"
+#include "cli.h"
+#include "module.h"
+#include "sink.h"
+#include "source.h"
+#include "client.h"
+
+struct cli {
+    struct core *core;
+    struct ioline *line;
+
+    void (*eof_callback)(struct cli *c, void *userdata);
+    void *userdata;
+};
+
+static void line_callback(struct ioline *line, const char *s, void *userdata);
+
+struct cli* cli_new(struct core *core, struct iochannel *io) {
+    struct cli *c;
+    assert(io);
+
+    c = malloc(sizeof(struct cli));
+    assert(c);
+    c->core = core;
+    c->line = ioline_new(io);
+    assert(c->line);
+
+    c->userdata = NULL;
+    c->eof_callback = NULL;
+
+    ioline_set_callback(c->line, line_callback, c);
+    ioline_puts(c->line, "Welcome to polypaudio!\n> ");
+
+    return c;
+}
+
+void cli_free(struct cli *c) {
+    assert(c);
+    ioline_free(c->line);
+    free(c);
+}
+
+static void line_callback(struct ioline *line, const char *s, void *userdata) {
+    struct cli *c = userdata;
+    char *t = NULL;
+    assert(line && c);
+
+    if (!s) {
+        fprintf(stderr, "CLI client exited\n");
+        if (c->eof_callback)
+            c->eof_callback(c, c->userdata);
+
+        return;
+    }
+
+    if (!strcmp(s, "modules"))
+        ioline_puts(line, (t = module_list_to_string(c->core)));
+    else if (!strcmp(s, "sources"))
+        ioline_puts(line, (t = source_list_to_string(c->core)));
+    else if (!strcmp(s, "sinks"))
+        ioline_puts(line, (t = sink_list_to_string(c->core)));
+    else if (!strcmp(s, "clients"))
+        ioline_puts(line, (t = client_list_to_string(c->core)));
+    else if (!strcmp(s, "exit")) {
+        assert(c->core && c->core->mainloop);
+        mainloop_quit(c->core->mainloop, -1);
+    } else if (*s)
+        ioline_puts(line, "Unknown command\n");
+
+    free(t);
+    ioline_puts(line, "> ");
+}
+
+void cli_set_eof_callback(struct cli *c, void (*cb)(struct cli*c, void *userdata), void *userdata) {
+    assert(c && cb);
+    c->eof_callback = cb;
+    c->userdata = userdata;
+}