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Implement posix_writev and sceKernelWritev

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Also fixes error behavior on writev, since it shouldn't ever return kernel errors (since our device files return those)
This commit is contained in:
Stephen Miller 2025-02-17 18:35:54 -06:00
parent 2920707702
commit dd027c6d36
1 changed files with 23 additions and 4 deletions
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27
src/core/libraries/kernel/file_system.cpp
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@ -291,25 +291,44 @@ size_t PS4_SYSV_ABI sceKernelReadv(s32 fd, const SceKernelIovec* iov, s32 iovcnt
return result;
}
size_t PS4_SYSV_ABI writev(int fd, const SceKernelIovec* iov, int iovcn) {
size_t PS4_SYSV_ABI writev(s32 fd, const SceKernelIovec* iov, s32 iovcnt) {
auto* h = Common::Singleton<Core::FileSys::HandleTable>::Instance();
auto* file = h->GetFile(fd);
if (file == nullptr) {
return ORBIS_KERNEL_ERROR_EBADF;
*__Error() = POSIX_EBADF;
return -1;
}
std::scoped_lock lk{file->m_mutex};
if (file->type == Core::FileSys::FileType::Device) {
return file->device->writev(iov, iovcn);
size_t result = file->device->writev(iov, iovcnt);
if (result < 0) {
ErrSceToPosix(result);
return -1;
}
return result;
}
size_t total_written = 0;
for (int i = 0; i < iovcn; i++) {
for (s32 i = 0; i < iovcnt; i++) {
total_written += file->f.WriteRaw<u8>(iov[i].iov_base, iov[i].iov_len);
}
return total_written;
}
size_t PS4_SYSV_ABI posix_writev(int fd, const SceKernelIovec* iov, int iovcnt) {
return writev(fd, iov, iovcnt);
}
size_t PS4_SYSV_ABI sceKernelWritev(int fd, const SceKernelIovec* iov, int iovcnt) {
size_t result = writev(fd, iov, iovcnt);
if (result < 0) {
LOG_ERROR(Kernel_Fs, "writev: error = {}", *__Error());
return ErrnoToSceKernelError(*__Error());
}
return result;
}
s64 PS4_SYSV_ABI sceKernelLseek(int d, s64 offset, int whence) {
auto* h = Common::Singleton<Core::FileSys::HandleTable>::Instance();
auto* file = h->GetFile(d);