Add sceKernelWaitSignal and sceKernelSendSignal (#462)

* Add sceKernelWaitSignal and sceKernelSendSignal

* Update threadmgr.h

* Update threadmgr.h

1 files changed, 23 insertions, 0 deletions

diff --git a/include/user/kernel/threadmgr.h b/include/user/kernel/threadmgr.h
index 4bc8ac3..3ece29e 100644
--- a/include/user/kernel/threadmgr.h
+++ b/include/user/kernel/threadmgr.h
@@ -1129,6 +1129,29 @@ int sceKernelDeleteLwCond(SceKernelLwCondWork *pWork);
 int sceKernelSignalLwCond(SceKernelLwCondWork *pWork);
 int sceKernelWaitLwCond(SceKernelLwCondWork *pWork,  unsigned int *pTimeout);
 
+typedef struct SceKernelWaitSignalOptParam {
+    SceUInt32 unk;
+} SceKernelWaitSignalOptParam;
+
+/**
+ * @brief Sleep current thread and wait for a signal. After it receives a signal, the thread wakes up.
+ *
+ * This is like a semphore with limit 1. 
+ * If signal was sent before and not consumed before, the function will immediately return.
+ * 
+ * @param params - extra parameters
+ * @return 0 on success
+ */
+int sceKernelWaitSignal(SceUInt32 unk0, SceUInt32 unk1, SceKernelWaitSignalOptParam *params);
+
+/**
+ * @brief Send a signal to another thread specified by thid.
+ *
+ * @param thid - the id of the thread to send a signal to
+ * @return 0 on success
+ * @return SCE_KERNEL_ERROR_ALREADY_SENT if the last signal was not consumed by sceKernelWaitSignal
+ */
+int sceKernelSendSignal(SceUID thid);
 
 /**
  * Get the system time (wide version)