base layer, mostly stolen

thread.c

@@ -0,0 +1,36 @@
+#include "all.h"
+
+Thread spawnThread(void * (*threadFn)(void *), void* thread_arg) {
+  pthread_t thread;
+  pthread_create(&thread, NULL, threadFn, thread_arg);
+  Thread result = { thread };
+  return result;
+}
+
+Mutex newMutex() {
+  Mutex result = { PTHREAD_MUTEX_INITIALIZER };
+  return result;
+}
+
+Cond newCond() {
+  Cond result = { 0 };
+  pthread_cond_init(&result.cond, NULL);
+  return result;
+}
+
+void lockMutex(Mutex* m) {
+  pthread_mutex_lock(&m->mutex);
+}
+
+void unlockMutex(Mutex* m) {
+  pthread_mutex_unlock(&m->mutex);
+}
+
+void signalCond(Cond* cond) {
+  pthread_cond_signal(&cond->cond);
+}
+
+void waitForCondSignal(Cond* cond, Mutex* mutex) {
+  pthread_cond_wait(&cond->cond, &mutex->mutex);
+}
+