initial commit

third_party/libhv/base/hversion.c

@@ -0,0 +1,48 @@
+#include "hversion.h"
+
+#include "htime.h"
+
+const char* hv_compile_version() {
+    static char s_version[16] = {0};
+    datetime_t dt = hv_compile_datetime();
+    snprintf(s_version, sizeof(s_version), "%d.%d.%d.%d",
+        HV_VERSION_MAJOR, dt.year%100, dt.month, dt.day);
+    return s_version;
+}
+
+int version_atoi(const char* str) {
+    int hex = 0;
+
+    // trim v1.2.3.4
+    const char* pv = strchr(str, 'v');
+    const char* pdot = pv ? pv+1 : str;
+
+    while (1) {
+        hex = (hex << 8) | atoi(pdot);
+        pdot = strchr(pdot, '.');
+        if (pdot == NULL)   break;
+        ++pdot;
+    }
+
+    return hex;
+}
+
+void version_itoa(int num, char* str) {
+    char* ch = (char*)&num;
+    sprintf(str, "%d.%d.%d.%d", ch[3], ch[2], ch[1], ch[0]);
+
+    // trim 0.1.2.3
+    const char* p = str;
+    while (1) {
+        if (p[0] == '0' && p[1] == '.') {
+            p += 2;
+        }
+        else {
+            break;
+        }
+    }
+
+    if (p != str) {
+        strcpy(str, p);
+    }
+}