Add support for FUSE passthrough

src/procfs_get_name.cpp

@@ -1,60 +0,0 @@
-#ifndef _GNU_SOURCE
-#define _GNU_SOURCE
-#endif
-
-#include "procfs_get_name.hpp"
-
-#include "errno.hpp"
-#include "fs_close.hpp"
-#include "fs_open.hpp"
-#include "fs_openat.hpp"
-#include "fs_read.hpp"
-
-#include "fmt/core.h"
-
-#include <array>
-
-#include <pthread.h>
-
-static int g_PROCFS_DIR_FD = -1;
-constexpr const char PROCFS_PATH[] = "/proc";
-
-int
-procfs::init()
-{
-  if(g_PROCFS_DIR_FD != -1)
-    return 0;
-
-  g_PROCFS_DIR_FD = fs::open(PROCFS_PATH,O_PATH|O_DIRECTORY);
-  if(g_PROCFS_DIR_FD == -1)
-    return -errno;
-
-  return 0;
-}
-
-std::string
-procfs::get_name(const int tid_)
-{
-  int fd;
-  int rv;
-  std::array<char,256> commpath;
-  fmt::format_to_n_result<char*> frv;
-
-  frv = fmt::format_to_n(commpath.data(),commpath.size()-1,"{}/comm",tid_);
-  frv.out[0] = '\0';
-
-  fd = fs::openat(g_PROCFS_DIR_FD,commpath.data(),O_RDONLY);
-  if(fd < 0)
-    return {};
-
-  rv = fs::read(fd,commpath.data(),commpath.size());
-  if(rv == -1)
-    return {};
-
-  // Overwrite the newline with NUL
-  commpath[rv-1] = '\0';
-
-  fs::close(fd);
-
-  return commpath.data();
-}