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/bt2s/make-unique.hpp"
  12 #include "cpp-common/vendor/fmt/format.h"
  13
  14 #include "file.hpp"
  15
  16 ctf_fs_file::UP ctf_fs_file_create(const bt2c::Logger& parentLogger)
  17 {
  18     return bt2s::make_unique<ctf_fs_file>(parentLogger);
  19 }
  20
  21 int ctf_fs_file_open(struct ctf_fs_file *file, const char *mode)
  22 {
  23     int ret = 0;
  24     struct stat stat;
  25
  26     BT_CPPLOGI_SPEC(file->logger, "Opening file \"{}\" with mode \"{}\"", file->path, mode);
  27     file->fp.reset(fopen(file->path.c_str(), mode));
  28     if (!file->fp) {
  29         BT_CPPLOGE_ERRNO_APPEND_CAUSE_SPEC(file->logger, "Cannot open file", ": path={}, mode={}",
  30                                            file->path, mode);
  31         goto error;
  32     }
  33
  34     BT_CPPLOGI_SPEC(file->logger, "Opened file: {}", fmt::ptr(file->fp));
  35
  36     if (fstat(fileno(file->fp.get()), &stat)) {
  37         BT_CPPLOGE_ERRNO_APPEND_CAUSE_SPEC(file->logger, "Cannot get file information", ": path={}",
  38                                            file->path);
  39         goto error;
  40     }
  41
  42     file->size = stat.st_size;
  43     BT_CPPLOGI_SPEC(file->logger, "File is {} bytes", (intmax_t) file->size);
  44     goto end;
  45
  46 error:
  47     ret = -1;
  48
  49 end:
  50     return ret;
  51 }