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f16273a566
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closes #150 **Not addressed in this PR:** - pixels_per_frame, bytes_per_frame and tell should be made cost in FileInterface
45 lines
1.0 KiB
C++
45 lines
1.0 KiB
C++
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#include "aare/FilePtr.hpp"
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#include <fmt/format.h>
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#include <stdexcept>
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#include <utility>
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namespace aare {
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FilePtr::FilePtr(const std::filesystem::path& fname, const std::string& mode = "rb") {
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fp_ = fopen(fname.c_str(), mode.c_str());
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if (!fp_)
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throw std::runtime_error(fmt::format("Could not open: {}", fname.c_str()));
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}
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FilePtr::FilePtr(FilePtr &&other) { std::swap(fp_, other.fp_); }
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FilePtr &FilePtr::operator=(FilePtr &&other) {
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std::swap(fp_, other.fp_);
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return *this;
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}
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FILE *FilePtr::get() { return fp_; }
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int64_t FilePtr::tell() {
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auto pos = ftell(fp_);
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if (pos == -1)
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throw std::runtime_error(fmt::format("Error getting file position: {}", error_msg()));
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return pos;
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}
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FilePtr::~FilePtr() {
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if (fp_)
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fclose(fp_); // check?
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}
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std::string FilePtr::error_msg(){
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if (feof(fp_)) {
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return "End of file reached";
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}
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if (ferror(fp_)) {
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return fmt::format("Error reading file: {}", std::strerror(errno));
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}
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return "";
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}
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} // namespace aare
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