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Add a simple /proc/mounts that enumerates the current VFS mounts.

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This commit is contained in:
Andreas Kling 2018-10-26 18:43:25 +02:00
parent a447359916
commit 81627cf7d5
6 changed files with 46 additions and 17 deletions
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17
Kernel/ProcFileSystem.cpp
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@ -1,5 +1,6 @@
#include "ProcFileSystem.h"
#include "Task.h"
#include <VirtualFileSystem/VirtualFileSystem.h>
static ProcFileSystem* s_the;
@ -64,6 +65,22 @@ bool ProcFileSystem::initialize()
{
SyntheticFileSystem::initialize();
addFile(createGeneratedFile("mounts", [] {
InterruptDisabler disabler;
auto buffer = ByteBuffer::createUninitialized(VirtualFileSystem::the().mountCount() * 80);
char* ptr = (char*)buffer.pointer();
VirtualFileSystem::the().forEachMount([&ptr] (auto& mount) {
auto& fs = mount.fileSystem();
ptr += ksprintf(ptr, "%s @ ", fs.className());
if (!mount.host().isValid())
ptr += ksprintf(ptr, "/\n", fs.className());
else
ptr += ksprintf(ptr, "%u:%u\n", mount.host().fileSystemID(), mount.host().index());
});
buffer.trim(ptr - (char*)buffer.pointer());
return buffer;
}));
addFile(createGeneratedFile("kmalloc", [] {
InterruptDisabler disabler;
auto buffer = ByteBuffer::createUninitialized(128);