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5a45376180
This patch adds these I/O counters to each thread: - (Inode) file read bytes - (Inode) file write bytes - Unix socket read bytes - Unix socket write bytes - IPv4 socket read bytes - IPv4 socket write bytes These are then exposed in /proc/all and seen in SystemMonitor.
55 lines
1.6 KiB
C++
55 lines
1.6 KiB
C++
#include <Kernel/FileSystem/FileDescription.h>
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#include <Kernel/FileSystem/Inode.h>
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#include <Kernel/FileSystem/InodeFile.h>
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#include <Kernel/FileSystem/VirtualFileSystem.h>
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#include <Kernel/Process.h>
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InodeFile::InodeFile(NonnullRefPtr<Inode>&& inode)
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: m_inode(move(inode))
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{
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}
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InodeFile::~InodeFile()
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{
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}
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ssize_t InodeFile::read(FileDescription& description, u8* buffer, ssize_t count)
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{
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ssize_t nread = m_inode->read_bytes(description.offset(), count, buffer, &description);
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if (nread > 0)
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current->did_file_read(nread);
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return nread;
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}
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ssize_t InodeFile::write(FileDescription& description, const u8* data, ssize_t count)
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{
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ssize_t nwritten = m_inode->write_bytes(description.offset(), count, data, &description);
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if (nwritten > 0) {
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m_inode->set_mtime(kgettimeofday().tv_sec);
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current->did_file_write(nwritten);
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}
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return nwritten;
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}
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KResultOr<Region*> InodeFile::mmap(Process& process, FileDescription& description, VirtualAddress preferred_vaddr, size_t offset, size_t size, int prot)
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{
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ASSERT(offset == 0);
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// FIXME: If PROT_EXEC, check that the underlying file system isn't mounted noexec.
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InterruptDisabler disabler;
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auto* region = process.allocate_file_backed_region(preferred_vaddr, size, inode(), description.absolute_path(), prot);
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if (!region)
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return KResult(-ENOMEM);
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return region;
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}
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String InodeFile::absolute_path(const FileDescription& description) const
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{
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ASSERT_NOT_REACHED();
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ASSERT(description.custody());
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return description.absolute_path();
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}
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KResult InodeFile::truncate(off_t size)
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{
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return m_inode->truncate(size);
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}
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