1 files changed, 91 insertions, 0 deletions
diff --git a/tests/modules/zset.c b/tests/modules/zset.c
new file mode 100644
index 0000000..13f2ab3
--- /dev/null
+++ b/tests/modules/zset.c
@@ -0,0 +1,91 @@
+#include "redismodule.h"
+#include <math.h>
+#include <errno.h>
+
+/* ZSET.REM key element
+ *
+ * Removes an occurrence of an element from a sorted set. Replies with the
+ * number of removed elements (0 or 1).
+ */
+int zset_rem(RedisModuleCtx *ctx, RedisModuleString **argv, int argc) {
+    if (argc != 3) return RedisModule_WrongArity(ctx);
+    RedisModule_AutoMemory(ctx);
+    int keymode = REDISMODULE_READ | REDISMODULE_WRITE;
+    RedisModuleKey *key = RedisModule_OpenKey(ctx, argv[1], keymode);
+    int deleted;
+    if (RedisModule_ZsetRem(key, argv[2], &deleted) == REDISMODULE_OK)
+        return RedisModule_ReplyWithLongLong(ctx, deleted);
+    else
+        return RedisModule_ReplyWithError(ctx, "ERR ZsetRem failed");
+}
+
+/* ZSET.ADD key score member
+ *
+ * Adds a specified member with the specified score to the sorted
+ * set stored at key.
+ */
+int zset_add(RedisModuleCtx *ctx, RedisModuleString **argv, int argc) {
+    if (argc != 4) return RedisModule_WrongArity(ctx);
+    RedisModule_AutoMemory(ctx);
+    int keymode = REDISMODULE_READ | REDISMODULE_WRITE;
+    RedisModuleKey *key = RedisModule_OpenKey(ctx, argv[1], keymode);
+
+    size_t len;
+    double score;
+    char *endptr;
+    const char *str = RedisModule_StringPtrLen(argv[2], &len);
+    score = strtod(str, &endptr);
+    if (*endptr != '\0' || errno == ERANGE)
+        return RedisModule_ReplyWithError(ctx, "value is not a valid float");
+
+    if (RedisModule_ZsetAdd(key, score, argv[3], NULL) == REDISMODULE_OK)
+        return RedisModule_ReplyWithSimpleString(ctx, "OK");
+    else
+        return RedisModule_ReplyWithError(ctx, "ERR ZsetAdd failed");
+}
+
+/* ZSET.INCRBY key member increment
+ *
+ * Increments the score stored at member in the sorted set stored at key by increment.
+ * Replies with the new score of this element.
+ */
+int zset_incrby(RedisModuleCtx *ctx, RedisModuleString **argv, int argc) {
+    if (argc != 4) return RedisModule_WrongArity(ctx);
+    RedisModule_AutoMemory(ctx);
+    int keymode = REDISMODULE_READ | REDISMODULE_WRITE;
+    RedisModuleKey *key = RedisModule_OpenKey(ctx, argv[1], keymode);
+
+    size_t len;
+    double score, newscore;
+    char *endptr;
+    const char *str = RedisModule_StringPtrLen(argv[3], &len);
+    score = strtod(str, &endptr);
+    if (*endptr != '\0' || errno == ERANGE)
+        return RedisModule_ReplyWithError(ctx, "value is not a valid float");
+
+    if (RedisModule_ZsetIncrby(key, score, argv[2], NULL, &newscore) == REDISMODULE_OK)
+        return RedisModule_ReplyWithDouble(ctx, newscore);
+    else
+        return RedisModule_ReplyWithError(ctx, "ERR ZsetIncrby failed");
+}
+
+int RedisModule_OnLoad(RedisModuleCtx *ctx, RedisModuleString **argv, int argc) {
+    REDISMODULE_NOT_USED(argv);
+    REDISMODULE_NOT_USED(argc);
+    if (RedisModule_Init(ctx, "zset", 1, REDISMODULE_APIVER_1) == REDISMODULE_ERR)
+        return REDISMODULE_ERR;
+
+    if (RedisModule_CreateCommand(ctx, "zset.rem", zset_rem, "write",
+                                  1, 1, 1) == REDISMODULE_ERR)
+        return REDISMODULE_ERR;
+
+    if (RedisModule_CreateCommand(ctx, "zset.add", zset_add, "write",
+                                  1, 1, 1) == REDISMODULE_ERR)
+        return REDISMODULE_ERR;
+
+    if (RedisModule_CreateCommand(ctx, "zset.incrby", zset_incrby, "write",
+                                  1, 1, 1) == REDISMODULE_ERR)
+        return REDISMODULE_ERR;
+
+    return REDISMODULE_OK;
+}