mplayer_server: first version of the server

1 files changed, 92 insertions, 0 deletions

diff --git a/main.c b/main.c
new file mode 100644
index 0000000..bb74011
--- /dev/null
+++ b/main.c
@@ -0,0 +1,92 @@
+#include <signal.h>
+#include <sys/socket.h>
+#include <netinet/in.h>
+#include <arpa/inet.h>
+#include <unistd.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+#include "mplayer_server.h"
+#include "request.h"
+
+FILE *stream_g;
+
+static request_t buffer_g;
+
+void *get_assoc_cb(int opcode);
+
+/* returns a socket listing to port or -1 if something failed */
+static int bind_socket(uint16_t port)
+{
+    int sock = socket(AF_INET, SOCK_STREAM, 0);
+    struct sockaddr_in sin;
+
+    if (sock < 0) {
+        perror("socket");
+        return -1;
+    }
+
+    sin.sin_addr.s_addr = htonl(INADDR_ANY);
+    sin.sin_family      = AF_INET;
+    sin.sin_port        = htons(port);
+    setsockopt(sock, SOL_SOCKET, SO_REUSEADDR, (int []){1}, sizeof(int));
+
+    if (bind(sock, (struct sockaddr *)&sin, sizeof(sin)) < 0) {
+        perror("bind");
+        return -1;
+    }
+
+    if (listen(sock, 10) < 0) {
+        perror("listen");
+        return -1;
+    }
+
+    return sock;
+}
+
+/* TODO allow multiple clients to send queries */
+static int event_loop(int sock)
+{
+    for (;;) {
+        int csock = accept(sock, NULL, NULL);
+
+        int size = read(csock, &buffer_g, sizeof(buffer_g));
+
+        _log("received: [%.*s]\n", size - (int)sizeof(buffer_g.opcode), buffer_g.data);
+
+        if (size >= (int)sizeof(buffer_g.opcode)) {
+            int (*cb)(const byte *, int) = get_assoc_cb(buffer_g.opcode);
+
+            if (cb != NULL) {
+                (*cb)(buffer_g.data, size - (int)sizeof(buffer_g.opcode));
+            }
+        }
+
+        close(csock);
+    }
+
+    return 0;
+}
+
+int main(int argc, char *argv[])
+{
+    stream_g = popen("/usr/bin/mplayer -quiet -slave -idle", "w");
+
+    if (stream_g == NULL) {
+        fprintf(stderr, "cannot run mplayer: %m\n");
+        return -1;
+    }
+
+    setvbuf(stream_g, NULL, _IONBF, 0);
+
+    int sock = bind_socket((argc < 2) ? 4333 : atoi(argv[1]));
+
+    if (sock >= 0) {
+        signal(SIGPIPE, SIG_IGN);
+
+        event_loop(sock);
+    }
+
+    pclose(stream_g);
+    return 0;
+}