diff options
| author | Marvin Borner | 2021-04-15 22:47:54 +0200 |
|---|---|---|
| committer | Marvin Borner | 2021-04-15 22:47:54 +0200 |
| commit | 4d4e784770b576199b18f22100689125a18bfd9a (patch) | |
| tree | 5009a65f79af966fa6253307e64271479b1b0bed /kernel/features/syscall.c | |
| parent | 462eaa9531b9e62916b02ab52759cd070de755d3 (diff) | |
Basic block/unblock
Diffstat (limited to 'kernel/features/syscall.c')
| -rw-r--r-- | kernel/features/syscall.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/kernel/features/syscall.c b/kernel/features/syscall.c index abd7130..2c30a3b 100644 --- a/kernel/features/syscall.c +++ b/kernel/features/syscall.c @@ -60,7 +60,12 @@ static void syscall_handler(struct regs *r) break; } case SYS_IOREAD: { - r->eax = io_read(r->ebx, (void *)r->ecx, r->edx, r->esi); + res ret = io_read(r->ebx, (void *)r->ecx, r->edx, r->esi); + if (ret == -EAGAIN) { + io_block(r->ebx, proc_current(), r); + } else { + r->eax = ret; + } break; } case SYS_IOWRITE: { @@ -87,10 +92,12 @@ static void syscall_handler(struct regs *r) break; } case SYS_EXIT: { + r->eax = EOK; proc_exit(proc_current(), r, (s32)r->ebx); break; } case SYS_YIELD: { + r->eax = EOK; proc_yield(r); break; } @@ -126,6 +133,7 @@ static void syscall_handler(struct regs *r) // TODO: Reimplement network functions using VFS default: { + r->eax = -EINVAL; printf("Unknown syscall %d!\n", num); break; } |