diff options
| author | Marvin Borner | 2021-01-13 19:51:40 +0100 |
|---|---|---|
| committer | Marvin Borner | 2021-01-13 19:51:40 +0100 |
| commit | 91abed9333241731d0cd877beba4e2d4675989c8 (patch) | |
| tree | 09a5e509afda809d56db88ec720c78864312620e /kernel/features/syscall.c | |
| parent | 9ac1eda2988b6c7472a24817f4fd623de28a33f5 (diff) | |
VFS ready function and read yielding
Diffstat (limited to 'kernel/features/syscall.c')
| -rw-r--r-- | kernel/features/syscall.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/kernel/features/syscall.c b/kernel/features/syscall.c index dbb7033..c5570c3 100644 --- a/kernel/features/syscall.c +++ b/kernel/features/syscall.c @@ -37,7 +37,12 @@ void syscall_handler(struct regs *r) break; } case SYS_READ: { - r->eax = (u32)vfs_read((char *)r->ebx, (void *)r->ecx, r->edx, r->esi); + if (vfs_ready((char *)r->ebx)) { + r->eax = (u32)vfs_read((char *)r->ebx, (void *)r->ecx, r->edx, r->esi); + } else { + proc_current()->state = PROC_SLEEPING; + scheduler(r); + } break; } case SYS_WRITE: { |