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lspci: Port to Core::Stream

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This commit is contained in:
Sam Atkins 2022-09-14 15:50:59 +01:00 • committed by Linus Groh
parent 376b5731a2
commit 880b35739e
1 changed files with 67 additions and 25 deletions
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92
Userland/Utilities/lspci.cpp
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@ -13,7 +13,7 @@
#include <AK/StringView.h>
#include <LibCore/ArgsParser.h>
#include <LibCore/DirIterator.h>
#include <LibCore/File.h>
#include <LibCore/Stream.h>
#include <LibCore/System.h>
#include <LibMain/Main.h>
#include <LibPCIDB/Database.h>
@ -88,37 +88,71 @@ ErrorOr<int> serenity_main(Main::Arguments arguments)
VERIFY(function_parts.size() == 2);
auto function = convert_sysfs_value_to_uint(function_parts[1]);
auto vendor_id_file = Core::File::construct(String::formatted("/sys/bus/pci/{}/vendor", dir));
if (!vendor_id_file->open(Core::OpenMode::ReadOnly)) {
dbgln("Error: Could not open {}: {}", vendor_id_file->name(), vendor_id_file->error_string());
auto vendor_id_filename = String::formatted("/sys/bus/pci/{}/vendor", dir);
auto vendor_id_file = Core::Stream::File::open(vendor_id_filename, Core::Stream::OpenMode::Read);
if (vendor_id_file.is_error()) {
dbgln("Error: Could not open {}: {}", vendor_id_filename, vendor_id_file.error());
continue;
}
auto device_id_file = Core::File::construct(String::formatted("/sys/bus/pci/{}/device_id", dir));
if (!device_id_file->open(Core::OpenMode::ReadOnly)) {
dbgln("Error: Could not open {}: {}", device_id_file->name(), device_id_file->error_string());
auto device_id_filename = String::formatted("/sys/bus/pci/{}/device_id", dir);
auto device_id_file = Core::Stream::File::open(device_id_filename, Core::Stream::OpenMode::Read);
if (device_id_file.is_error()) {
dbgln("Error: Could not open {}: {}", device_id_filename, device_id_file.error());
continue;
}
auto class_id_file = Core::File::construct(String::formatted("/sys/bus/pci/{}/class", dir));
if (!class_id_file->open(Core::OpenMode::ReadOnly)) {
dbgln("Error: Could not open {}: {}", class_id_file->name(), class_id_file->error_string());
auto class_id_filename = String::formatted("/sys/bus/pci/{}/class", dir);
auto class_id_file = Core::Stream::File::open(class_id_filename, Core::Stream::OpenMode::Read);
if (class_id_file.is_error()) {
dbgln("Error: Could not open {}: {}", class_id_filename, class_id_file.error());
continue;
}
auto subclass_id_file = Core::File::construct(String::formatted("/sys/bus/pci/{}/subclass", dir));
if (!subclass_id_file->open(Core::OpenMode::ReadOnly)) {
dbgln("Error: Could not open {}: {}", subclass_id_file->name(), subclass_id_file->error_string());
auto subclass_id_filename = String::formatted("/sys/bus/pci/{}/subclass", dir);
auto subclass_id_file = Core::Stream::File::open(subclass_id_filename, Core::Stream::OpenMode::Read);
if (subclass_id_file.is_error()) {
dbgln("Error: Could not open {}: {}", subclass_id_filename, subclass_id_file.error());
continue;
}
auto revision_id_file = Core::File::construct(String::formatted("/sys/bus/pci/{}/revision", dir));
if (!revision_id_file->open(Core::OpenMode::ReadOnly)) {
dbgln("Error: Could not open {}: {}", revision_id_file->name(), revision_id_file->error_string());
auto revision_id_filename = String::formatted("/sys/bus/pci/{}/revision", dir);
auto revision_id_file = Core::Stream::File::open(revision_id_filename, Core::Stream::OpenMode::Read);
if (revision_id_file.is_error()) {
dbgln("Error: Could not open {}: {}", revision_id_filename, revision_id_file.error());
continue;
}
u32 vendor_id = read_hex_string_from_bytebuffer(vendor_id_file->read_all());
u32 device_id = read_hex_string_from_bytebuffer(device_id_file->read_all());
u32 revision_id = read_hex_string_from_bytebuffer(revision_id_file->read_all());
u32 class_id = read_hex_string_from_bytebuffer(class_id_file->read_all());
u32 subclass_id = read_hex_string_from_bytebuffer(subclass_id_file->read_all());
auto vendor_id_contents = vendor_id_file.value()->read_all();
if (vendor_id_contents.is_error()) {
dbgln("Error: Could not read {}: {}", vendor_id_filename, vendor_id_contents.error());
continue;
}
u32 vendor_id = read_hex_string_from_bytebuffer(vendor_id_contents.value());
auto device_id_contents = device_id_file.value()->read_all();
if (device_id_contents.is_error()) {
dbgln("Error: Could not read {}: {}", device_id_filename, device_id_contents.error());
continue;
}
u32 device_id = read_hex_string_from_bytebuffer(device_id_contents.value());
auto revision_id_contents = revision_id_file.value()->read_all();
if (revision_id_contents.is_error()) {
dbgln("Error: Could not read {}: {}", revision_id_filename, revision_id_contents.error());
continue;
}
u32 revision_id = read_hex_string_from_bytebuffer(revision_id_contents.value());
auto class_id_contents = class_id_file.value()->read_all();
if (class_id_contents.is_error()) {
dbgln("Error: Could not read {}: {}", class_id_filename, class_id_contents.error());
continue;
}
u32 class_id = read_hex_string_from_bytebuffer(class_id_contents.value());
auto subclass_id_contents = subclass_id_file.value()->read_all();
if (subclass_id_contents.is_error()) {
dbgln("Error: Could not read {}: {}", subclass_id_filename, subclass_id_contents.error());
continue;
}
u32 subclass_id = read_hex_string_from_bytebuffer(subclass_id_contents.value());
String vendor_name;
String device_name;
@ -142,12 +176,20 @@ ErrorOr<int> serenity_main(Main::Arguments arguments)
if (!flag_verbose)
continue;
for (size_t bar_index = 0; bar_index <= 5; bar_index++) {
auto bar_value_file = Core::File::construct(String::formatted("/sys/bus/pci/{}/bar{}", dir, bar_index));
if (!bar_value_file->open(Core::OpenMode::ReadOnly)) {
dbgln("Error: Could not open {}: {}", bar_value_file->name(), bar_value_file->error_string());
auto bar_value_filename = String::formatted("/sys/bus/pci/{}/bar{}", dir, bar_index);
auto bar_value_file = Core::Stream::File::open(bar_value_filename, Core::Stream::OpenMode::Read);
if (bar_value_file.is_error()) {
dbgln("Error: Could not open {}: {}", bar_value_filename, bar_value_file.error());
continue;
}
u32 bar_value = read_hex_string_from_bytebuffer(bar_value_file->read_all());
auto bar_value_contents = bar_value_file.value()->read_all();
if (bar_value_contents.is_error()) {
dbgln("Error: Could not read {}: {}", bar_value_filename, bar_value_contents.error());
continue;
}
u32 bar_value = read_hex_string_from_bytebuffer(bar_value_contents.value());
if (bar_value == 0)
continue;
bool memory_region = ((bar_value & 1) == 0);