Shantappa Teekappanavar | b64983f | 2022-02-01 09:28:10 -0600 | [diff] [blame^] | 1 | #include "ffdc_file.hpp" |
| 2 | |
| 3 | #include <errno.h> // for errno |
| 4 | #include <fcntl.h> // for open() |
| 5 | #include <fmt/format.h> |
| 6 | #include <string.h> // for strerror() |
| 7 | #include <sys/stat.h> // for open() |
| 8 | #include <sys/types.h> // for open() |
| 9 | |
| 10 | #include <phosphor-logging/log.hpp> |
| 11 | |
| 12 | #include <stdexcept> |
| 13 | #include <string> |
| 14 | |
| 15 | namespace watchdog |
| 16 | { |
| 17 | namespace dump |
| 18 | { |
| 19 | using namespace phosphor::logging; |
| 20 | |
| 21 | FFDCFile::FFDCFile(const json& calloutDataObject) : |
| 22 | calloutData(calloutDataObject.dump()) |
| 23 | { |
| 24 | prepareFFDCFile(); |
| 25 | } |
| 26 | |
| 27 | FFDCFile::~FFDCFile() |
| 28 | { |
| 29 | // Close file descriptor. Does nothing if descriptor was already closed. |
| 30 | if (descriptor.close() == -1) |
| 31 | { |
| 32 | log<level::ERR>(fmt::format("Unable to close FFDC file: errormsg({})", |
| 33 | strerror(errno)) |
| 34 | .c_str()); |
| 35 | } |
| 36 | |
| 37 | // Delete temporary file. Does nothing if file was already deleted. |
| 38 | tempFile.remove(); |
| 39 | } |
| 40 | |
| 41 | void FFDCFile::prepareFFDCFile() |
| 42 | { |
| 43 | // Open the temporary file for both reading and writing |
| 44 | int fd = open(tempFile.getPath().c_str(), O_RDWR); |
| 45 | if (fd == -1) |
| 46 | { |
| 47 | throw std::runtime_error{std::string{"Unable to open FFDC file: "} + |
| 48 | strerror(errno)}; |
| 49 | } |
| 50 | |
| 51 | ssize_t rc = write(fd, calloutData.c_str(), calloutData.size()); |
| 52 | |
| 53 | if (rc == -1) |
| 54 | { |
| 55 | log<level::ERR>(fmt::format("Failed to write callout info " |
| 56 | "in file({}), errorno({}), errormsg({})", |
| 57 | tempFile.getPath().c_str(), errno, |
| 58 | strerror(errno)) |
| 59 | .c_str()); |
| 60 | throw std::runtime_error("Failed to write phalPELCallouts info"); |
| 61 | } |
| 62 | else if (rc != static_cast<ssize_t>(calloutData.size())) |
| 63 | { |
| 64 | log<level::WARNING>(fmt::format("Could not write all callout " |
| 65 | "info in file({}), written byte({}) " |
| 66 | "and total byte({})", |
| 67 | tempFile.getPath().c_str(), rc, |
| 68 | calloutData.size()) |
| 69 | .c_str()); |
| 70 | } |
| 71 | |
| 72 | int retCode = lseek(fd, 0, SEEK_SET); |
| 73 | |
| 74 | if (retCode == -1) |
| 75 | { |
| 76 | log<level::ERR>( |
| 77 | fmt::format("Failed to seek file postion to the beginning" |
| 78 | "in file({}), errorno({}) " |
| 79 | "and errormsg({})", |
| 80 | tempFile.getPath().c_str(), errno, strerror(errno)) |
| 81 | .c_str()); |
| 82 | throw std::runtime_error( |
| 83 | "Failed to seek file postion to the beginning of the file"); |
| 84 | } |
| 85 | |
| 86 | // Store file descriptor in FileDescriptor object |
| 87 | descriptor.set(fd); |
| 88 | } |
| 89 | |
| 90 | } // namespace dump |
| 91 | } // namespace watchdog |