upload android base code part3

android/bootable/recovery/minadbd/minadbd_services.cpp

@@ -0,0 +1,77 @@
+/*
+ * Copyright (C) 2007 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <errno.h>
+#include <inttypes.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+#include <string>
+#include <thread>
+
+#include "adb.h"
+#include "fdevent.h"
+#include "fuse_adb_provider.h"
+#include "sysdeps.h"
+
+static void sideload_host_service(int sfd, const std::string& args) {
+    int file_size;
+    int block_size;
+    if (sscanf(args.c_str(), "%d:%d", &file_size, &block_size) != 2) {
+        printf("bad sideload-host arguments: %s\n", args.c_str());
+        exit(1);
+    }
+
+    printf("sideload-host file size %d block size %d\n", file_size, block_size);
+
+    int result = run_adb_fuse(sfd, file_size, block_size);
+
+    printf("sideload_host finished\n");
+    exit(result == 0 ? 0 : 1);
+}
+
+static int create_service_thread(void (*func)(int, const std::string&), const std::string& args) {
+    int s[2];
+    if (adb_socketpair(s)) {
+        printf("cannot create service socket pair\n");
+        return -1;
+    }
+
+    std::thread([s, func, args]() { func(s[1], args); }).detach();
+
+    VLOG(SERVICES) << "service thread started, " << s[0] << ":" << s[1];
+    return s[0];
+}
+
+int service_to_fd(const char* name, const atransport* transport) {
+    int ret = -1;
+
+    if (!strncmp(name, "sideload:", 9)) {
+        // this exit status causes recovery to print a special error
+        // message saying to use a newer adb (that supports
+        // sideload-host).
+        exit(3);
+    } else if (!strncmp(name, "sideload-host:", 14)) {
+        std::string arg(name + 14);
+        ret = create_service_thread(sideload_host_service, arg);
+    }
+    if (ret >= 0) {
+        close_on_exec(ret);
+    }
+    return ret;
+}