redis++ binaries for mac

ext/redis-plus-plus-1.1.1/src/sw/redis++/reply.cpp

@@ -0,0 +1,150 @@
+/**************************************************************************
+   Copyright (c) 2017 sewenew
+
+   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 "reply.h"
+
+namespace sw {
+
+namespace redis {
+
+namespace reply {
+
+std::string to_status(redisReply &reply) {
+    if (!reply::is_status(reply)) {
+        throw ProtoError("Expect STATUS reply");
+    }
+
+    if (reply.str == nullptr) {
+        throw ProtoError("A null status reply");
+    }
+
+    // Old version hiredis' *redisReply::len* is of type int.
+    // So we CANNOT have something like: *return {reply.str, reply.len}*.
+    return std::string(reply.str, reply.len);
+}
+
+std::string parse(ParseTag<std::string>, redisReply &reply) {
+    if (!reply::is_string(reply) && !reply::is_status(reply)) {
+        throw ProtoError("Expect STRING reply");
+    }
+
+    if (reply.str == nullptr) {
+        throw ProtoError("A null string reply");
+    }
+
+    // Old version hiredis' *redisReply::len* is of type int.
+    // So we CANNOT have something like: *return {reply.str, reply.len}*.
+    return std::string(reply.str, reply.len);
+}
+
+long long parse(ParseTag<long long>, redisReply &reply) {
+    if (!reply::is_integer(reply)) {
+        throw ProtoError("Expect INTEGER reply");
+    }
+
+    return reply.integer;
+}
+
+double parse(ParseTag<double>, redisReply &reply) {
+    return std::stod(parse<std::string>(reply));
+}
+
+bool parse(ParseTag<bool>, redisReply &reply) {
+    auto ret = parse<long long>(reply);
+
+    if (ret == 1) {
+        return true;
+    } else if (ret == 0) {
+        return false;
+    } else {
+        throw ProtoError("Invalid bool reply: " + std::to_string(ret));
+    }
+}
+
+void parse(ParseTag<void>, redisReply &reply) {
+    if (!reply::is_status(reply)) {
+        throw ProtoError("Expect STATUS reply");
+    }
+
+    if (reply.str == nullptr) {
+        throw ProtoError("A null status reply");
+    }
+
+    static const std::string OK = "OK";
+
+    // Old version hiredis' *redisReply::len* is of type int.
+    // So we have to cast it to an unsigned int.
+    if (static_cast<std::size_t>(reply.len) != OK.size()
+            || OK.compare(0, OK.size(), reply.str, reply.len) != 0) {
+        throw ProtoError("NOT ok status reply: " + reply::to_status(reply));
+    }
+}
+
+void rewrite_set_reply(redisReply &reply) {
+    if (is_nil(reply)) {
+        // Failed to set, and make it a FALSE reply.
+        reply.type = REDIS_REPLY_INTEGER;
+        reply.integer = 0;
+
+        return;
+    }
+
+    // Check if it's a "OK" status reply.
+    reply::parse<void>(reply);
+
+    assert(is_status(reply) && reply.str != nullptr);
+
+    free(reply.str);
+
+    // Make it a TRUE reply.
+    reply.type = REDIS_REPLY_INTEGER;
+    reply.integer = 1;
+}
+
+void rewrite_georadius_reply(redisReply &reply) {
+    if (is_array(reply) && reply.element == nullptr) {
+        // Make it a nil reply.
+        reply.type = REDIS_REPLY_NIL;
+    }
+}
+
+namespace detail {
+
+bool is_flat_array(redisReply &reply) {
+    assert(reply::is_array(reply));
+
+    // Empty array reply.
+    if (reply.element == nullptr || reply.elements == 0) {
+        return false;
+    }
+
+    auto *sub_reply = reply.element[0];
+
+    // Null element.
+    if (sub_reply == nullptr) {
+        return false;
+    }
+
+    return !reply::is_array(*sub_reply);
+}
+
+}
+
+}
+
+}
+
+}