Port hashtypes to Windows

src/crc32.c

@@ -1,11 +1,16 @@
 #include "postgres.h"
 #include "fmgr.h"
 
+#include <stdint.h>
+
 typedef uint32 crc32;
 
 #define PG_GETARG_CRC32(N)    PG_GETARG_UINT32(N)
 #define PG_RETURN_CRC32(X)    PG_RETURN_UINT32(X)
 
+PGDLLEXPORT Datum crc32_in(PG_FUNCTION_ARGS);
+PGDLLEXPORT Datum crc32_out(PG_FUNCTION_ARGS);
+
 PG_FUNCTION_INFO_V1(crc32_in);
 Datum
 crc32_in(PG_FUNCTION_ARGS)

src/md5.c

@@ -25,22 +25,22 @@ typedef struct Md5 {
 #define PG_GETARG_MD5(n)	DatumGetMd5(PG_GETARG_DATUM(n))
 #define PG_RETURN_MD5(x)	return Md5GetDatum(x)
 
-Datum md5_in(PG_FUNCTION_ARGS);
-Datum md5_out(PG_FUNCTION_ARGS);
-Datum md5_recv(PG_FUNCTION_ARGS);
-Datum md5_send(PG_FUNCTION_ARGS);
-Datum md5_to_text(PG_FUNCTION_ARGS);
-Datum text_to_md5(PG_FUNCTION_ARGS);
-Datum bytea_to_md5(PG_FUNCTION_ARGS);
-Datum md5_to_bytea(PG_FUNCTION_ARGS);
-Datum md5_cmp(PG_FUNCTION_ARGS);
-Datum md5_eq(PG_FUNCTION_ARGS);
-Datum md5_ne(PG_FUNCTION_ARGS);
-Datum md5_ge(PG_FUNCTION_ARGS);
-Datum md5_gt(PG_FUNCTION_ARGS);
-Datum md5_le(PG_FUNCTION_ARGS);
-Datum md5_lt(PG_FUNCTION_ARGS);
-Datum md5_hash(PG_FUNCTION_ARGS);
+PGDLLEXPORT Datum md5_in(PG_FUNCTION_ARGS);
+PGDLLEXPORT Datum md5_out(PG_FUNCTION_ARGS);
+PGDLLEXPORT Datum md5_recv(PG_FUNCTION_ARGS);
+PGDLLEXPORT Datum md5_send(PG_FUNCTION_ARGS);
+PGDLLEXPORT Datum md5_to_text(PG_FUNCTION_ARGS);
+PGDLLEXPORT Datum text_to_md5(PG_FUNCTION_ARGS);
+PGDLLEXPORT Datum bytea_to_md5(PG_FUNCTION_ARGS);
+PGDLLEXPORT Datum md5_to_bytea(PG_FUNCTION_ARGS);
+PGDLLEXPORT Datum md5_cmp(PG_FUNCTION_ARGS);
+PGDLLEXPORT Datum md5_eq(PG_FUNCTION_ARGS);
+PGDLLEXPORT Datum md5_ne(PG_FUNCTION_ARGS);
+PGDLLEXPORT Datum md5_ge(PG_FUNCTION_ARGS);
+PGDLLEXPORT Datum md5_gt(PG_FUNCTION_ARGS);
+PGDLLEXPORT Datum md5_le(PG_FUNCTION_ARGS);
+PGDLLEXPORT Datum md5_lt(PG_FUNCTION_ARGS);
+PGDLLEXPORT Datum md5_hash(PG_FUNCTION_ARGS);
 
 
 /*

src/sha.c

@@ -57,20 +57,20 @@ typedef struct Sha {
 #define hash_function funcname(sha_hash, SHA_NAME)
 
 
-Datum input_function(PG_FUNCTION_ARGS);
-Datum output_function(PG_FUNCTION_ARGS);
-Datum sha_to_text_fn(PG_FUNCTION_ARGS);
-Datum text_to_sha_fn(PG_FUNCTION_ARGS);
-Datum bytea_to_sha_fn(PG_FUNCTION_ARGS);
-Datum sha_to_bytea_fn(PG_FUNCTION_ARGS);
-Datum cmp_function(PG_FUNCTION_ARGS);
-Datum equal_function(PG_FUNCTION_ARGS);
-Datum notequal_function(PG_FUNCTION_ARGS);
-Datum ge_function(PG_FUNCTION_ARGS);
-Datum gt_function(PG_FUNCTION_ARGS);
-Datum le_function(PG_FUNCTION_ARGS);
-Datum lt_function(PG_FUNCTION_ARGS);
-Datum hash_function(PG_FUNCTION_ARGS);
+PGDLLEXPORT Datum input_function(PG_FUNCTION_ARGS);
+PGDLLEXPORT Datum output_function(PG_FUNCTION_ARGS);
+PGDLLEXPORT Datum sha_to_text_fn(PG_FUNCTION_ARGS);
+PGDLLEXPORT Datum text_to_sha_fn(PG_FUNCTION_ARGS);
+PGDLLEXPORT Datum bytea_to_sha_fn(PG_FUNCTION_ARGS);
+PGDLLEXPORT Datum sha_to_bytea_fn(PG_FUNCTION_ARGS);
+PGDLLEXPORT Datum cmp_function(PG_FUNCTION_ARGS);
+PGDLLEXPORT Datum equal_function(PG_FUNCTION_ARGS);
+PGDLLEXPORT Datum notequal_function(PG_FUNCTION_ARGS);
+PGDLLEXPORT Datum ge_function(PG_FUNCTION_ARGS);
+PGDLLEXPORT Datum gt_function(PG_FUNCTION_ARGS);
+PGDLLEXPORT Datum le_function(PG_FUNCTION_ARGS);
+PGDLLEXPORT Datum lt_function(PG_FUNCTION_ARGS);
+PGDLLEXPORT Datum hash_function(PG_FUNCTION_ARGS);
 
 
 /*

windows.mak

@@ -0,0 +1,41 @@
+
+## You will need to change these two settings for your own system.
+CC="C:\Program Files (x86)\Microsoft Visual Studio\2019\Community\VC\Tools\Llvm\8.0.0\bin\clang.exe"
+
+POSTGRES="C:\Program Files\PostgreSQL\11"
+
+## Nothing below this line should require touching.
+
+CFLAGS=-m64 -Wall -Wextra -O3 \
+	-I$(POSTGRES)\include\server\port\win32_msvc \
+	-I$(POSTGRES)\include\server\port\win32 \
+	-I$(POSTGRES)\include\server \
+	-I$(POSTGRES)\include
+
+LDFLAGS=-L$(POSTGRES)\lib -lpostgres
+
+## This implicit rule takes care of common.obj, crc32.obj and md5.obj
+.c.obj:
+	$(CC) $(CFLAGS) -c $< -o$@
+
+src\hashtypes.dll: src\common.obj src\crc32.obj src\md5.obj src\sha1.obj \
+	src\sha224.obj src\sha256.obj src\sha384.obj src\sha512.obj
+	$(CC) $(CFLAGS) -shared $** $(LDFLAGS) -o$@
+
+src\sha1.obj: src\sha.c
+	$(CC) $(CFLAGS) -c src\sha.c -o$@ -DSHA_NAME=1 -DSHA_LENGTH=20
+src\sha224.obj: src\sha.c
+	$(CC) $(CFLAGS) -c src\sha.c -o$@ -DSHA_NAME=224 -DSHA_LENGTH=28
+src\sha256.obj: src\sha.c
+	$(CC) $(CFLAGS) -c src\sha.c -o$@ -DSHA_NAME=256 -DSHA_LENGTH=32
+src\sha384.obj: src\sha.c
+	$(CC) $(CFLAGS) -c src\sha.c -o$@ -DSHA_NAME=384 -DSHA_LENGTH=48
+src\sha512.obj: src\sha.c
+	$(CC) $(CFLAGS) -c src\sha.c -o$@ -DSHA_NAME=512 -DSHA_LENGTH=64
+
+## We only install version 0.1.5 since the earlier releases haven't
+## been ported to Windows.
+install: src\hashtypes.dll
+    copy src\hashtypes.dll $(POSTGRES)\lib
+    copy hashtypes.control $(POSTGRES)\share\extension
+    copy sql\hashtypes--0.1.5.sql $(POSTGRES)\share\extension