Add version information

Signed-off-by: Thibault Meyer <[email protected]>

.gitignore

@@ -1,6 +1,7 @@
 .idea/
-cmake-build-debug
-cmake-build-release
-out/
-CMakeSettings.json
 .vs/
+cmake-build-debug/
+cmake-build-release/
+CMakeSettings.json
+out/
+src/version.h

CMakeLists.txt

@@ -11,6 +11,11 @@ ENDIF (MSVC)
 SET(CMAKE_CXX_FLAGS_DEBUG "-g")
 SET(CMAKE_CXX_FLAGS_RELEASE "-O2")
 
+# Configure version.h file
+SET(LIBSNOWFLAKEID_VERSION_STRING "1.0.0")
+SET(LIBSNOWFLAKEID_VERSION_NUMBER "100")
+CONFIGURE_FILE(${CMAKE_SOURCE_DIR}/res/version.h.template ${CMAKE_SOURCE_DIR}/src/version.h)
+
 # Display build type
 IF (NOT CMAKE_BUILD_TYPE)
     MESSAGE(STATUS "Build type: -")
@@ -29,6 +34,8 @@ ENDIF (CMAKE_USE_PTHREADS_INIT)
 # Source Files
 SET(SOURCE_FILES ${SOURCE_FILES}
         src/snowflakeid_destroy.c
+        src/snowflakeid_get_version_as_int.c
+        src/snowflakeid_get_version_as_str.c
         src/snowflakeid_initialize.c
         src/snowflakeid_next_value.c)
 

res/version.h.template

@@ -0,0 +1,6 @@
+#ifndef LIBSNOWFLAKEID_VERSION_H
+# define LIBSNOWFLAKEID_VERSION_H
+# define LIBSNOWFLAKEID_VERSION_STRING  "${LIBSNOWFLAKEID_VERSION_STRING}"
+# define LIBSNOWFLAKEID_VERSION_NUMBER  ${LIBSNOWFLAKEID_VERSION_NUMBER}
+
+#endif //LIBSNOWFLAKEID_VERSION_H

src/libsnowflakeid.h

@@ -73,6 +73,20 @@ typedef struct s_snowflakeid_generator_ctx {
  */
 void snowflakeid_destroy(struct s_snowflakeid_generator_ctx *ctx);
 
+/**
+ * Returns the SnowflakeID library version as a number.
+ *
+ * @return the SnowflakeID library version as a number (ie: 100)
+ */
+int snowflakeid_get_version_as_int(void);
+
+/**
+ * Returns the SnowflakeID library version as a string.
+ *
+ * @return the SnowflakeID library version as a string (ie: 1.0.0)
+ */
+const char *snowflakeid_get_version_as_str(void);
+
 /**
  * Initialize Snowflake ID generator context.
  *

src/snowflakeid_get_version_as_int.c

@@ -0,0 +1,5 @@
+#include "version.h"
+
+int snowflakeid_get_version_as_int(void) {
+    return (LIBSNOWFLAKEID_VERSION_NUMBER);
+}

src/snowflakeid_get_version_as_str.c

@@ -0,0 +1,5 @@
+#include "version.h"
+
+const char *snowflakeid_get_version_as_str(void) {
+    return (LIBSNOWFLAKEID_VERSION_STRING);
+}

test/test_main.c

@@ -40,7 +40,8 @@ int main(const int argc, const char *const *argv) {
     }
 
     if (argc > 2 && strcmp(argv[1], "PERFORMANCE") == 0) {
-        int max_value = atoi(argv[2]);
+        int max_value = (int) strtol(argv[2], NULL, 10);
+
         printf("START PERFORMANCE TEST: %d\n", max_value);
 
         uint64_t *id_array = malloc(sizeof(uint64_t) * max_value + 1);
@@ -51,11 +52,12 @@ int main(const int argc, const char *const *argv) {
             id_array[idx] = snowflakeid_next_value(ctx);
         }
         uint64_t time_stop  = get_current_time_ms();
-
         printf("END PERFORMANCE TEST  : %" PRIu64 "ms\n", time_stop - time_start);
 
         free(id_array);
     } else if (argc > 1 && strcmp(argv[1], "SINGLE") == 0) {
+        printf("libsnowflakeid version %s (%d)\n", snowflakeid_get_version_as_str(), snowflakeid_get_version_as_int());
+
         uint64_t snowflakeid = snowflakeid_next_value(ctx);
         printf("SINGLE: %" PRIu64 " (timestamp_ms: %" PRIu64 ", datacenter_id: %" PRIu8 ", worker_id: %" PRIu8 ", inc: %" PRIu16 ")\n",
                snowflakeid,