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-rw-r--r--app/nginx/src/core/ngx_murmurhash.c50
1 files changed, 50 insertions, 0 deletions
diff --git a/app/nginx/src/core/ngx_murmurhash.c b/app/nginx/src/core/ngx_murmurhash.c
new file mode 100644
index 0000000..c31e0e0
--- /dev/null
+++ b/app/nginx/src/core/ngx_murmurhash.c
@@ -0,0 +1,50 @@
+
+/*
+ * Copyright (C) Austin Appleby
+ */
+
+
+#include <ngx_config.h>
+#include <ngx_core.h>
+
+
+uint32_t
+ngx_murmur_hash2(u_char *data, size_t len)
+{
+ uint32_t h, k;
+
+ h = 0 ^ len;
+
+ while (len >= 4) {
+ k = data[0];
+ k |= data[1] << 8;
+ k |= data[2] << 16;
+ k |= data[3] << 24;
+
+ k *= 0x5bd1e995;
+ k ^= k >> 24;
+ k *= 0x5bd1e995;
+
+ h *= 0x5bd1e995;
+ h ^= k;
+
+ data += 4;
+ len -= 4;
+ }
+
+ switch (len) {
+ case 3:
+ h ^= data[2] << 16;
+ case 2:
+ h ^= data[1] << 8;
+ case 1:
+ h ^= data[0];
+ h *= 0x5bd1e995;
+ }
+
+ h ^= h >> 13;
+ h *= 0x5bd1e995;
+ h ^= h >> 15;
+
+ return h;
+}