src/plugins/ctf/fs-src/file.cpp

   1 /*
   2  * SPDX-License-Identifier: MIT
   3  *
   4  * Copyright 2016 Philippe Proulx <pproulx@efficios.com>
   5  */
   6
   7 #include <glib.h>
   8 #include <stdio.h>
   9 #include <sys/stat.h>
  10
  11 #include "cpp-common/vendor/fmt/format.h"
  12
  13 #include "file.hpp"
  14
  15 void ctf_fs_file_destroy(struct ctf_fs_file *file)
  16 {
  17     if (!file) {
  18         return;
  19     }
  20
  21     delete file;
  22 }
  23
  24 void ctf_fs_file_deleter::operator()(ctf_fs_file * const file) noexcept
  25 {
  26     ctf_fs_file_destroy(file);
  27 }
  28
  29 ctf_fs_file::UP ctf_fs_file_create(const bt2c::Logger& parentLogger)
  30 {
  31     return ctf_fs_file::UP {new ctf_fs_file {parentLogger}};
  32 }
  33
  34 int ctf_fs_file_open(struct ctf_fs_file *file, const char *mode)
  35 {
  36     int ret = 0;
  37     struct stat stat;
  38
  39     BT_CPPLOGI_SPEC(file->logger, "Opening file \"{}\" with mode \"{}\"", file->path, mode);
  40     file->fp.reset(fopen(file->path.c_str(), mode));
  41     if (!file->fp) {
  42         BT_CPPLOGE_ERRNO_APPEND_CAUSE_SPEC(file->logger, "Cannot open file", ": path={}, mode={}",
  43                                            file->path, mode);
  44         goto error;
  45     }
  46
  47     BT_CPPLOGI_SPEC(file->logger, "Opened file: {}", fmt::ptr(file->fp));
  48
  49     if (fstat(fileno(file->fp.get()), &stat)) {
  50         BT_CPPLOGE_ERRNO_APPEND_CAUSE_SPEC(file->logger, "Cannot get file information", ": path={}",
  51                                            file->path);
  52         goto error;
  53     }
  54
  55     file->size = stat.st_size;
  56     BT_CPPLOGI_SPEC(file->logger, "File is {} bytes", (intmax_t) file->size);
  57     goto end;
  58
  59 error:
  60     ret = -1;
  61
  62 end:
  63     return ret;
  64 }