libc

commit 37152261b048dfc1fc12c0305a0bd87a65df9c75
parent 3601af5dc5a0620cea566e59534f4bfd669fb805
Author: evenfri <evenfri@4plt.ch>
Date:   Mon, 26 Oct 2026 22:52:52 +0800

FEAT: nanosleep and sleep

Diffstat:
M
libc.h
 | 
3
+++
M
mkfile
 | 
2
++
A
nanosleep.c
 | 
17
+++++++++++++++++
A
sleep.c
 | 
15
+++++++++++++++

4 files changed, 37 insertions(+), 0 deletions(-)
diff --git a/libc.h b/libc.h
@@ -105,6 +105,7 @@ struct utimbuf {
 #define SYS_mmap        9
 #define SYS_munmap      11
 #define SYS_brk         12
+#define SYS_nanosleep   35
 #define SYS_clone       56
 #define SYS_fork        57
 #define SYS_execve      59
@@ -145,6 +146,8 @@ int execve(const char *path, char *const argv[], char *const envp[]);
 int execvp(const char *file, char *const argv[]);
 int fork(void);
 int waitpid(int pid, int *status, int options);
+int nanosleep(const struct timespec *req_time, struct timespec *rem);
+unsigned int sleep(unsigned int sec);
 
 /* fs */
 int mount(const char *src, const char *trg, const char *fstype, ulong_t flags, 
diff --git a/mkfile b/mkfile
@@ -19,6 +19,8 @@ ofiles =  start.$o \
           execvp.$o \
           fork.$o \
           waitpid.$o \
+          nanosleep.$o \
+          sleep.$o \
           mount.$o \
           mmap.$o \
           munmap.$o \
diff --git a/nanosleep.c b/nanosleep.c
@@ -0,0 +1,17 @@
+/*
+ * nanosleep.c - nanosleep system call
+ * Copyright (C) 2026. All rights reserved.
+ */
+
+#include "libc.h"
+
+int nanosleep(const struct timespec *req_time, struct timespec *rem) {
+  long ret = syscall(SYS_nanosleep, (long)req_time, (long)rem, 0, 0, 0, 0);
+
+  if (ret < 0) {
+    errno = -ret;
+    return -1;
+  }
+
+  return ret;
+}
diff --git a/sleep.c b/sleep.c
@@ -0,0 +1,15 @@
+/*
+ * sleep.c - sleep function
+ * Copyright (C) 2026. All rights reserved.
+ */
+
+#include "libc.h"
+
+unsigned int sleep(unsigned int sec) {
+  struct timespec time;
+  time.tv_nsec = 0;
+  time.tv_sec = sec;
+
+  int ret = nanosleep(&time, NULL);
+  return ret;
+}