C89, C++98 api smoke tests

CMakeLists.txt

@@ -3,9 +3,11 @@ project(
   conflict-set
   VERSION 0.0.1
   DESCRIPTION "A data structure for detecting mvcc read-write conflicts in a keyspace of lexicographically-ordered byte sequences."
-  LANGUAGES CXX)
+  LANGUAGES C CXX)
 set(CMAKE_CXX_STANDARD 20)
 set(CMAKE_CXX_STANDARD_REQUIRED ON)
+set(CMAKE_C_STANDARD 11)
+set(CMAKE_C_STANDARD_REQUIRED ON)
 
 add_library(conflict_set SHARED ConflictSet.cpp ConflictSet.h)
 target_compile_options(conflict_set PRIVATE -fno-exceptions -fvisibility=hidden)
@@ -17,9 +19,25 @@ target_compile_definitions(conflict_set_test PRIVATE ENABLE_TESTS)
 # keep asserts for test
 target_compile_options(conflict_set_test PRIVATE -UNDEBUG)
 # Only emit compile warnings for test
-target_compile_options(conflict_set_test PRIVATE -Wall -Wextra -Wpedantic -Wunreachable-code)
-
-# TODO add a smoke test for the public api (c++11, c99)?
+target_compile_options(conflict_set_test PRIVATE -Wall -Wextra -Wpedantic -Wunreachable-code -Werror)
 
 include(CTest)
 add_test(NAME conflict_set_test COMMAND conflict_set_test)
+
+# api smoke tests
+
+# c89
+add_executable(conflict_set_c_api_test conflict_set_c_api_test.c ConflictSet.h)
+target_link_libraries(conflict_set_c_api_test PRIVATE conflict_set)
+target_compile_options(conflict_set_c_api_test PRIVATE -UNDEBUG)
+set_property(TARGET conflict_set_c_api_test PROPERTY C_STANDARD 90)
+add_test(NAME conflict_set_c_api_test COMMAND conflict_set_c_api_test)
+target_compile_options(conflict_set_c_api_test PRIVATE -Wall -Wextra -Wpedantic -Wunreachable-code -Werror)
+
+# c++98
+add_executable(conflict_set_cxx_api_test conflict_set_cxx_api_test.cpp ConflictSet.h)
+target_link_libraries(conflict_set_cxx_api_test PRIVATE conflict_set)
+target_compile_options(conflict_set_cxx_api_test PRIVATE -UNDEBUG)
+set_property(TARGET conflict_set_cxx_api_test PROPERTY CXX_STANDARD 98)
+add_test(NAME conflict_set_cxx_api_test COMMAND conflict_set_cxx_api_test)
+target_compile_options(conflict_set_cxx_api_test PRIVATE -Wall -Wextra -Wpedantic -Wunreachable-code -Werror)

ConflictSet.h

@@ -15,7 +15,7 @@ struct __attribute__((__visibility__("default"))) ConflictSet {
     Conflict,
     /// The result of a check with a readVersion older than the highest call to
     /// `setOldestVersion`
-    TooOld,
+    TooOld
   };
   /// Bytes ordered lexicographically
   struct Key {
@@ -57,10 +57,12 @@ struct __attribute__((__visibility__("default"))) ConflictSet {
   explicit ConflictSet(int64_t oldestVersion);
   ~ConflictSet();
 
+#if __cplusplus > 199711L
   ConflictSet(ConflictSet &&) noexcept;
   ConflictSet &operator=(ConflictSet &&) noexcept;
   ConflictSet(const ConflictSet &) = delete;
   ConflictSet &operator=(const ConflictSet &) = delete;
+#endif
 
   /// @private
   struct Impl;
@@ -75,7 +77,7 @@ private:
 
 typedef struct ConflictSet ConflictSet;
 
-enum ConflictSet_Result {
+typedef enum {
   /// The result of a check which does not intersect any conflicting writes
   ConflictSet_Commit,
   /// The result of a check which intersects a write at a version >
@@ -83,23 +85,23 @@ enum ConflictSet_Result {
   ConflictSet_Conflict,
   /// The result of a check with a readVersion older than the highest call to
   /// `setOldestVersion`
-  ConflictSet_TooOld,
-};
+  ConflictSet_TooOld
+} ConflictSet_Result;
 /// Bytes ordered lexicographically
-struct ConflictSet_Key {
+typedef struct {
   const uint8_t *p;
   int len;
-};
+} ConflictSet_Key;
 /// Denotes a set of keys to be checked for conflicts
-struct ConflictSet_ReadRange {
+typedef struct {
   ConflictSet_Key begin;
   /// `end` having length 0 denotes that this range is the single key {begin}.
   /// Otherwise this denotes the range [begin, end)
   ConflictSet_Key end;
   int64_t readVersion;
-};
+} ConflictSet_ReadRange;
 /// Denotes a set of keys to be considered written at `writeVersion`
-struct ConflictSet_WriteRange {
+typedef struct {
   ConflictSet_Key begin;
   /// `end` having length 0 denotes that this range is the single key {begin}.
   /// Otherwise this denotes the range [begin, end)
@@ -107,7 +109,7 @@ struct ConflictSet_WriteRange {
   /// Write version must be greater than all write versions in all previous
   /// calls to `addWrites`
   int64_t writeVersion;
-};
+} ConflictSet_WriteRange;
 
 /// `reads` must be sorted ascending, and must not have adjacent or
 /// overlapping ranges. The result of checking reads[i] is written in

conflict_set_c_api_test.c

@@ -0,0 +1,22 @@
+#include "ConflictSet.h"
+
+#include <assert.h>
+
+int main(void) {
+  ConflictSet *cs = ConflictSet_create(0);
+  ConflictSet_WriteRange w;
+  ConflictSet_Result result;
+  ConflictSet_ReadRange r;
+  w.begin.p = (const uint8_t *)"0000";
+  w.begin.len = 4;
+  w.end.len = 0;
+  w.writeVersion = 1;
+  ConflictSet_addWrites(cs, &w, 1);
+  r.begin.p = (const uint8_t *)"0000";
+  r.begin.len = 4;
+  r.end.len = 0;
+  r.readVersion = 0;
+  ConflictSet_check(cs, &r, &result, 1);
+  assert(result == ConflictSet_Conflict);
+  ConflictSet_destroy(cs);
+}

conflict_set_cxx_api_test.cpp

@@ -0,0 +1,21 @@
+#include "ConflictSet.h"
+
+#include <cassert>
+
+int main(void) {
+  ConflictSet cs(0);
+  ConflictSet::WriteRange w;
+  w.begin.p = (const uint8_t *)"0000";
+  w.begin.len = 4;
+  w.end.len = 0;
+  w.writeVersion = 1;
+  cs.addWrites(&w, 1);
+  ConflictSet::Result result;
+  ConflictSet::ReadRange r;
+  r.begin.p = (const uint8_t *)"0000";
+  r.begin.len = 4;
+  r.end.len = 0;
+  r.readVersion = 0;
+  cs.check(&r, &result, 1);
+  assert(result == ConflictSet::Conflict);
+}