1. Rearraged the source tree

2. modified the autotools scripts, "make distcheck" is ok now

demo/searpc-demo-server.c

@@ -0,0 +1,112 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <errno.h>
+#include <unistd.h>
+
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <netinet/in.h>
+#include <arpa/inet.h>
+
+#include "searpc-server.h"
+#include "searpc-demo-packet.h"
+#define BUFLEN 256
+
+static int
+searpc_demo_int__string(const char *str)
+{
+    if (str == NULL)
+        return -1;
+    else
+        return strlen(str);
+}
+
+static void
+start_rpc_service(void)
+{
+    searpc_server_init();
+
+    searpc_server_register_function(searpc_demo_int__string,
+                                    "searpc_demo_int__string",
+                                    searpc_signature_int__string());
+}
+
+
+int
+main(int argc, char *argv[])
+{
+    int listenfd, connfd;
+    int ret;
+    struct sockaddr_in client_addr, server_addr;
+    socklen_t clilen;
+    char buf[BUFLEN];
+    packet *pac, *pac_ret;
+    g_type_init();
+
+    start_rpc_service();
+
+    listenfd = socket(AF_INET, SOCK_STREAM, 0);
+    if (listenfd < 0) {
+        fprintf(stderr, "socket failed: %s\n", strerror(errno));
+        exit(-1);
+    }
+
+    int on = 1;
+    if (setsockopt (listenfd, SOL_SOCKET, SO_REUSEADDR, &on, sizeof(on)) < 0) {
+        fprintf (stderr, "setsockopt of SO_REUSEADDR error: %s\n", strerror(errno));
+        exit(-1);
+    }
+
+    memset(&server_addr, 0, sizeof(server_addr));
+    server_addr.sin_family = AF_INET;
+    server_addr.sin_addr.s_addr = htonl(INADDR_ANY);
+    server_addr.sin_port = htons(12345);
+
+    ret = bind(listenfd, (struct sockaddr *)&server_addr,
+               sizeof(server_addr));
+
+    if (ret < 0) {
+        fprintf(stderr, "bind failed: %s\n", strerror(errno));
+        exit(-1);
+    }
+
+    ret = listen(listenfd, 5);
+    if (ret < 0) {
+        fprintf(stderr, "listen failed: %s\n", strerror(errno));
+        exit(-1);
+    }
+
+    while (1) {
+        clilen = sizeof(client_addr);
+        connfd = accept(listenfd, (struct sockaddr *)&client_addr, &clilen);
+        if (connfd < 0) {
+            fprintf(stderr, "accept failed: %s\n", strerror(errno));
+            continue;
+        }
+
+        /* read the header packet */
+        pac = read_packet(connfd, buf);
+        if (pac == NULL) {
+            fprintf(stderr, "read packet failed: %s\n", strerror(errno));
+            exit(-1);
+        }                              
+
+        gsize ret_len;
+        int fcall_len = ntohs(pac->length);
+        /* Execute the RPC function */
+        char *res = searpc_server_call_function (pac->data, fcall_len, &ret_len);
+
+        pac_ret = (packet *)buf;
+        pac_ret->length = htons((uint16_t)ret_len);
+        strncpy(pac_ret->data, res, ret_len);
+
+        /* send the ret packet */
+        if (writen (connfd, buf, PACKET_HEADER_LENGTH + ret_len) == -1) {
+            fprintf (stderr, "write packet failed: %s\n", strerror(errno));
+            exit(-1);
+        }
+    }
+
+    return 0;
+}