LibC: Implement wait()

This is a simple convenience wrapper over waitpid().
Author: https://github.com/bugaevc Commit: https://github.com/SerenityOS/serenity/commit/bec646c0bbe Pull-request: https://github.com/SerenityOS/serenity/pull/456 Reviewed-by: https://github.com/awesomekling ✅
2019-08-17 12:21:54 +03:00 · 2019-08-17 12:21:54 +03:00 · bec646c0bb · 2024-07-19 12:39:12 +09:00
commit bec646c0bb
parent fde8f7f538
2 changed files with 6 additions and 0 deletions
--- a/Libraries/LibC/unistd.cpp
+++ b/Libraries/LibC/unistd.cpp
@ -236,6 +236,11 @@ pid_t waitpid(pid_t waitee, int* wstatus, int options)
    __RETURN_WITH_ERRNO(rc, rc, -1);
 }

+pid_t wait(int* wstatus)
+{
+    return waitpid(-1, wstatus, 0);
+}
+
 int lstat(const char* path, struct stat* statbuf)
 {
    int rc = syscall(SC_lstat, path, statbuf);
--- a/Libraries/LibC/unistd.h
+++ b/Libraries/LibC/unistd.h
@ -66,6 +66,7 @@ ssize_t read(int fd, void* buf, size_t count);
 ssize_t write(int fd, const void* buf, size_t count);
 int close(int fd);
 pid_t waitpid(pid_t, int* wstatus, int options);
+pid_t wait(int* wstatus);
 int chdir(const char* path);
 char* getcwd(char* buffer, size_t size);
 char* getwd(char* buffer);