Add kernel worker threads for handling various tasks (eg. interrupts)

2 files changed, 5 insertions, 0 deletions

diff --git a/src/lib/include/syscall.h b/src/lib/include/syscall.h
index 0f1efb0..fb82c33 100644
--- a/src/lib/include/syscall.h
+++ b/src/lib/include/syscall.h
@@ -15,6 +15,7 @@ typedef int fd_t;
 void dbg_print(const char* str);
 void yield();
 void exit(int code);
+void usleep(int usecs);
 
 bool mmap(void* addr, size_t size, int mode);
 bool mmap_file(fd_t file, size_t offset, void* addr, size_t size, int mode);
diff --git a/src/lib/libkogata/syscall.c b/src/lib/libkogata/syscall.c
index 2e0ef0f..afda7c7 100644
--- a/src/lib/libkogata/syscall.c
+++ b/src/lib/libkogata/syscall.c
@@ -35,6 +35,10 @@ void exit(int code) {
 	call(SC_EXIT, code, 0, 0, 0, 0);
 }
 
+void usleep(int usecs) {
+	call(SC_USLEEP, usecs, 0, 0, 0, 0);
+}
+
 bool mmap(void* addr, size_t size, int mode) {
 	return call(SC_MMAP, (uint32_t)addr, size, mode, 0, 0);
 }