diff options
Diffstat (limited to 'vespalog')
| -rw-r--r-- | vespalog/src/vespa/log/control-file.cpp | 16 |
1 files changed, 13 insertions, 3 deletions
diff --git a/vespalog/src/vespa/log/control-file.cpp b/vespalog/src/vespa/log/control-file.cpp index 3b9fe2834a9..32f5a850ccd 100644 --- a/vespalog/src/vespa/log/control-file.cpp +++ b/vespalog/src/vespa/log/control-file.cpp @@ -58,10 +58,15 @@ ControlFile::ensureHeader() int len = read(fd, &buf, wantsLen); if (len != wantsLen || memcmp(fileHeader, buf, wantsLen) != 0) { if (len) { - ftruncate(fd, 0); + if (ftruncate(fd, 0) != 0) { + perror("log::ControlFile ftruncate failed"); + } } lseek(fd, 0, SEEK_SET); - write(fd, fileHeader, strlen(fileHeader)); + ssize_t nbw = write(fd, fileHeader, wantsLen); + if (nbw != wantsLen) { + perror("log::ControlFile write(A) failed"); + } char spaces[_maxPrefix + 1]; memset(spaces, ' ', sizeof spaces); @@ -69,7 +74,12 @@ ControlFile::ensureHeader() char buf2[sizeof(spaces) + 100]; snprintf(buf2, sizeof buf2, "Prefix: \n%s\n", spaces); - write(fd, buf2, strlen(buf2)); + wantsLen = strlen(buf2); + nbw = write(fd, buf2, wantsLen); + if (nbw != wantsLen) { + perror("log::ControlFile write(B) failed"); + } + } } |