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Kernel: And some more KResult/KResultOr<T> porting work.

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This commit is contained in:
Andreas Kling 2019-03-06 22:30:13 +01:00
parent 028afabf6b
commit e56fe71dbc
7 changed files with 56 additions and 51 deletions
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47
Kernel/ProcFS.cpp
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@ -188,7 +188,10 @@ ByteBuffer procfs$pid_fds(InodeIdentifier identifier)
auto* descriptor = process.file_descriptor(i);
if (!descriptor)
continue;
builder.appendf("% 3u %s\n", i, descriptor->absolute_path().characters());
auto result = descriptor->absolute_path();
if (result.is_error())
continue;
builder.appendf("% 3u %s\n", i, result.value().characters());
}
return builder.to_byte_buffer();
}
@ -203,7 +206,10 @@ ByteBuffer procfs$pid_fd_entry(InodeIdentifier identifier)
auto* descriptor = process.file_descriptor(fd);
if (!descriptor)
return { };
return descriptor->absolute_path().to_byte_buffer();
auto result = descriptor->absolute_path();
if (result.is_error())
return { };
return result.value().to_byte_buffer();
}
ByteBuffer procfs$pid_vm(InodeIdentifier identifier)
@ -331,7 +337,10 @@ ByteBuffer procfs$pid_exe(InodeIdentifier identifier)
auto& process = handle->process();
auto inode = process.executable_inode();
ASSERT(inode);
return VFS::the().absolute_path(*inode).to_byte_buffer();
auto result = VFS::the().absolute_path(*inode);
if (result.is_error())
return { };
return result.value().to_byte_buffer();
}
ByteBuffer procfs$pid_cwd(InodeIdentifier identifier)
@ -339,7 +348,10 @@ ByteBuffer procfs$pid_cwd(InodeIdentifier identifier)
auto handle = ProcessInspectionHandle::from_pid(to_pid(identifier));
if (!handle)
return { };
return VFS::the().absolute_path(handle->process().cwd_inode()).to_byte_buffer();
auto result = VFS::the().absolute_path(handle->process().cwd_inode());
if (result.is_error())
return { };
return result.value().to_byte_buffer();
}
ByteBuffer procfs$self(InodeIdentifier)
@ -388,9 +400,12 @@ ByteBuffer procfs$mounts(InodeIdentifier)
builder.appendf("/");
else {
builder.appendf("%u:%u", mount.host().fsid(), mount.host().index());
auto path = VFS::the().absolute_path(mount.host());
builder.append(' ');
builder.append(path);
auto result = VFS::the().absolute_path(mount.host());
if (result.is_error())
builder.append("[error]");
else
builder.append(result.value());
}
builder.append('\n');
});
@ -411,7 +426,11 @@ ByteBuffer procfs$df(InodeIdentifier)
if (!mount.host().is_valid())
builder.append("/");
else {
builder.append(VFS::the().absolute_path(mount.host()));
auto result = VFS::the().absolute_path(mount.host());
if (result.is_error())
builder.append("[Error]");
else
builder.append(result.value());
}
builder.append('\n');
});
@ -553,11 +572,13 @@ ByteBuffer procfs$all(InodeIdentifier)
ByteBuffer procfs$inodes(InodeIdentifier)
{
extern HashTable<Inode*>& all_inodes();
auto& vfs = VFS::the();
StringBuilder builder;
for (auto it : all_inodes()) {
RetainPtr<Inode> inode = *it;
String path = vfs.absolute_path(*inode);
auto result = VFS::the().absolute_path(*inode);
if (result.is_error())
continue;
auto path = result.value();
builder.appendf("Inode{K%x} %02u:%08u (%u) %s\n", inode.ptr(), inode->fsid(), inode->index(), inode->retain_count(), path.characters());
}
return builder.to_byte_buffer();
@ -880,13 +901,13 @@ bool ProcFSInode::traverse_as_directory(Function<bool(const FS::DirectoryEntry&)
}
for (auto pid_child : Process::all_pids()) {
char name[16];
size_t name_length = ksprintf(name, "%u", pid_child);
int name_length = ksprintf(name, "%u", pid_child);
callback({ name, name_length, to_identifier(fsid(), PDI_Root, pid_child, FI_PID), 0 });
}
break;
case FI_Root_sys:
for (size_t i = 0; i < fs().m_sys_entries.size(); ++i) {
for (int i = 0; i < fs().m_sys_entries.size(); ++i) {
auto& entry = fs().m_sys_entries[i];
callback({ entry.name, strlen(entry.name), sys_var_to_identifier(fsid(), i), 0 });
}
@ -913,7 +934,7 @@ bool ProcFSInode::traverse_as_directory(Function<bool(const FS::DirectoryEntry&)
if (!handle)
return false;
auto& process = handle->process();
for (size_t i = 0; i < process.max_open_file_descriptors(); ++i) {
for (int i = 0; i < process.max_open_file_descriptors(); ++i) {
auto* descriptor = process.file_descriptor(i);
if (!descriptor)
continue;
@ -965,7 +986,7 @@ InodeIdentifier ProcFSInode::lookup(const String& name)
}
if (proc_file_type == FI_Root_sys) {
for (size_t i = 0; i < fs().m_sys_entries.size(); ++i) {
for (int i = 0; i < fs().m_sys_entries.size(); ++i) {
auto& entry = fs().m_sys_entries[i];
if (!strcmp(entry.name, name.characters()))
return sys_var_to_identifier(fsid(), i);