update sdk and wasi

.gitignore

@@ -78,11 +78,12 @@ cmake-build-debug
 # mpeltonen/sbt-idea plugin
 .idea_modules/
 
-# JIRA plugin
-atlassian-ide-plugin.xml
-
 # Crashlytics plugin (for Android Studio and IntelliJ)
 com_crashlytics_export_strings.xml
 crashlytics.properties
 crashlytics-build.properties
 fabric.properties
+
+# Wasm files
+*.wasm
+*.wat

Dockerfile

@@ -1,13 +1,12 @@
-FROM ubuntu:19.04
+FROM ubuntu:18.04
 
 RUN apt-get update \
  && apt-get install -y ca-certificates \
                        curl \
                        git \
-                       make \
-                       libtinfo5
+                       make
 
-RUN curl -L https://github.com/CraneStation/wasi-sdk/releases/download/wasi-sdk-6/wasi-sdk-6.0-linux.tar.gz | tar xz --strip-components=1 -C /
+RUN curl -L https://github.com/WebAssembly/wasi-sdk/releases/download/wasi-sdk-10/wasi-sdk-10.0-linux.tar.gz | tar xz --strip-components=1 -C /
 
 VOLUME /code
 WORKDIR /code

docker-compose.yml

@@ -3,5 +3,6 @@ services:
   redis:
     build:
       context: .
+    container_name: redis_builder
     volumes:
       - .:/code

src/Makefile_wasm

@@ -1,24 +1,87 @@
 TARGET = redis
-CC = /opt/wasi-sdk/bin/clang
-SYSROOT = /opt/wasi-sdk/share/wasi-sysroot
-TARGET_TRIPLE = wasm32-unknown-wasi
+CC = /bin/clang
+SYSROOT = /share/wasi-sysroot
+TARGET_TRIPLE = wasm32-wasi
 CFLAGS = -nostartfiles -fvisibility=hidden
 LDFLAGS = -Wl,--no-entry,--demangle,--allow-undefined
-EXPORT_FUNCS = --export=allocate,--export=deallocate,--export=invoke,--export=load,--export=store,--export=redis_allocate,--export=redis_deallocate,--export=redis_invoke,--export=redis_load,--export=redis_store
 WRAPPER_SRC = wrapper.c
 LUA = /code/deps/lua/src
-REDIS_SERVER = adlist.c quicklist.c debug.c dict.c server.c sds.c zmalloc.c lzf_c.c lzf_d.c pqsort.c zipmap.c sha1.c ziplist.c release.c networking.c util.c object.c db.c t_string.c t_list.c t_set.c t_zset.c t_hash.c multi.c sort.c intset.c crc16.c endianconv.c slowlog.c scripting.c rand.c crc64.c bitops.c notify.c hyperloglog.c latency.c sparkline.c geo.c evict.c expire.c geohash.c geohash_helper.c defrag.c siphash.c rax.c t_stream.c listpack.c lolwut.c lolwut5.c ../deps/lua/src/*.c
-SDK = sdk/logger.c
+SDK = sdk/syscalls_stubs.c
+
+EXPORT_FUNCS = \
+	--export=allocate,$\
+	--export=deallocate,$\
+	--export=invoke,$\
+	--export=load,$\
+	--export=store,$\
+	--export=redis_allocate,$\
+	--export=redis_deallocate,$\
+	--export=redis_invoke,$\
+	--export=redis_load,$\
+	--export=redis_store
+
+REDIS_SERVER_SRC = \
+	adlist.c\
+	quicklist.c\
+	debug.c\
+	dict.c\
+	server.c\
+	sds.c\
+	zmalloc.c\
+	lzf_c.c\
+	lzf_d.c\
+	pqsort.c\
+	zipmap.c\
+	sha1.c\
+	ziplist.c\
+	release.c\
+	networking.c\
+	util.c\
+	object.c\
+	db.c\
+	t_string.c\
+	t_list.c\
+	t_set.c\
+	t_zset.c\
+	t_hash.c\
+	multi.c\
+	sort.c\
+	intset.c\
+	crc16.c\
+	endianconv.c\
+	slowlog.c\
+	scripting.c\
+	rand.c\
+	crc64.c\
+	bitops.c\
+	notify.c\
+	hyperloglog.c\
+	latency.c\
+	sparkline.c\
+	geo.c\
+	evict.c\
+	expire.c\
+	geohash.c\
+	geohash_helper.c\
+	defrag.c\
+	siphash.c\
+	rax.c\
+	t_stream.c\
+	listpack.c\
+	lolwut.c\
+	lolwut5.c\
+	../deps/lua/src/*.c
 
 .PHONY: default all clean
 
 default: $(TARGET)
 all: default
 
-$(TARGET): $(SDK) $(REDIS_SERVER) $(WRAPPER_SRC)
+$(TARGET): $(SDK) $(REDIS_SERVER_SRC) $(WRAPPER_SRC)
+	./mkreleasehdr.sh
 	$(CC) -O3 --sysroot=$(SYSROOT) --target=$(TARGET_TRIPLE) -I$(LUA) $(CFLAGS) $(LDFLAGS) -Wl,$(EXPORT_FUNCS) $^ -o $@.wasm
 
 .PRECIOUS: $(TARGET)
 
 clean:
-	-rm -f $(TARGET).wasm
+	-rm -f $(TARGET).wasm $(TARGET).wat

src/sdk/allocator.c

@@ -1,13 +0,0 @@
-#include "allocator.h"
-#include <stdlib.h>
-
-#define UNUSED(x) (void)(x)
-
-void *allocate(size_t size) {
-    return malloc(size);
-}
-
-void deallocate(void *ptr, size_t size) {
-    UNUSED(size);
-    free(ptr);
-}

src/sdk/allocator.h

@@ -1,27 +0,0 @@
-#ifndef C_SDK_ALLOCATOR_H
-#define C_SDK_ALLOCATOR_H
-
-#include <stddef.h> // for size_t
-
-/**
- * Allocates a memory region of given size.
- *
- * Used by Wasm VM for byte array passing. Should be exported from module.
- *
- * @param size a size of needed memory region.
- * @return a pointer to allocated memory region.
- */
-void *allocate(size_t size);
-
-/**
- * Frees a memory region.
- *
- * Used by Wasm VM for freeing previous memory allocated by `allocate` function.
- * Should be exported from module.
- *
- * @param ptr the pointer to the previously allocated memory region.
- * @param size the size of the previously allocated memory region.
- */
-void deallocate(void *ptr, size_t size);
-
-#endif //C_SDK_ALLOCATOR_H

src/sdk/logger.c

@@ -1,15 +0,0 @@
-#include "logger.h"
-
-#define __LOGGER_IMPORT(name) \
-    __attribute__((__import_module__("logger"), __import_name__(#name)))
-
-void __write(char ch) __LOGGER_IMPORT(write);
-void __flush() __LOGGER_IMPORT(flush);
-
-void wasm_log(const char *str, int len) {
-    for(int byteId = 0; byteId < len; ++byteId) {
-        __write(str[byteId]);
-    }
-
-    __flush();
-}

src/sdk/logger.h

@@ -1,11 +1,15 @@
-#ifndef C_SDK_LOGGER_H
-#define C_SDK_LOGGER_H
+#ifndef FLUENCE_C_SDK_LOGGER_H
+#define FLUENCE_C_SDK_LOGGER_H
+
+#define __LOGGER_IMPORT(name) \
+    __attribute__((__import_module__("logger"), __import_name__(#name)))
 
 /**
- * Writes provided string to Wasm VM logger.
+ * Writes provided utf8 string to Wasm VM logger.
  *
- * @param log_message a message that should be logged.
+ * @param str a pointer to the string that should be logged.
+ * @param len a size of the string that should be logged.
  */
-void wasm_log(const char *str, int len);
+void log_utf8_string(const char *str, int len) __LOGGER_IMPORT(log_utf8_string);
 
-#endif //C_SDK_LOGGER_H
+#endif // FLUENCE_C_SDK_LOGGER_H

src/sdk/syscalls_stubs.c

@@ -0,0 +1,23 @@
+#include <stdio.h>
+
+/// Some syscalls could be as the result of importing files like stdio.h that in its turn imports standart I/O
+/// descriptors like stdin/stderr/stdout. Each of them is a structure contains some callbacks (e.g.
+/// https://github.com/CraneStation/wasi-libc/blob/9bb4cc5c411af8453cbef69c137a4c2337714d89/libc-top-half/musl/src/stdio/stdin.c#L11)
+/// These stubs could provide default implementations for syscalls. And please include this file, if you are sure
+/// that these syscalls couldn't be used directly.
+
+size_t __stdio_write(FILE *f, const unsigned char *buf, size_t len) {
+    return 1;
+}
+
+int __stdio_close(FILE *f) {
+    return 1;
+}
+
+off_t __stdio_seek(FILE *_f, off_t _offset, int _value) {
+    return 1;
+}
+
+size_t __stdout_write(FILE *f, const unsigned char *buf, size_t len) {
+  return 1;
+}

src/server.c

@@ -411,7 +411,7 @@ void serverLogRaw(int level, const char *msg) {
     if (!log_to_stdout) fclose(fp);
     if (server.syslog_enabled) syslog(syslogLevelMap[level], "%s", msg);
 #else
-    wasm_log(msg, strlen(msg));
+    log_utf8_string(msg, strlen(msg));
 
     // increment time
     ustime();